<SEC-DOCUMENT>0001539497-25-001285.txt : 20250508
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<ACCEPTANCE-DATETIME>20250508162740
ACCESSION NUMBER:		0001539497-25-001285
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		82
CONFORMED PERIOD OF REPORT:	20250331
FILED AS OF DATE:		20250508
DATE AS OF CHANGE:		20250508

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NIOCORP DEVELOPMENTS LTD
		CENTRAL INDEX KEY:			0001512228
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL MINING [1000]
		ORGANIZATION NAME:           	01 Energy & Transportation
		EIN:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41655
		FILM NUMBER:		25926711

	BUSINESS ADDRESS:	
		STREET 1:		7000 S. YOSEMITE STREET
		STREET 2:		STE. 115
		CITY:			CENTENNIAL
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		720-639-4647

	MAIL ADDRESS:	
		STREET 1:		7000 S. YOSEMITE STREET
		STREET 2:		STE. 115
		CITY:			CENTENNIAL
		STATE:			CO
		ZIP:			80112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	QUANTUM RARE EARTH DEVELOPMENTS CORP.
		DATE OF NAME CHANGE:	20110204
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>UNITED STATES</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Washington, D.C. 20549</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif"><span id="xdx_907_edei--DocumentQuarterlyReport_c20240701__20250331_z3HCXhetGCWj"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" format="ixt:booleantrue" id="Fact000016" name="dei:DocumentQuarterlyReport">&#9746;</ix:nonNumeric></span></span>
&#160; <b>QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>For the quarterly period ended <span id="xdx_905_edei--DocumentPeriodEndDate_c20240701__20250331_zeYGjFr23eWd"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" format="ixt:datemonthdayyearen" id="Fact000017" name="dei:DocumentPeriodEndDate">March
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>OR</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif"><span id="xdx_90F_edei--DocumentTransitionReport_c20240701__20250331_z4mKEGAkAGQl"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" format="ixt:booleanfalse" id="Fact000018" name="dei:DocumentTransitionReport">&#9744;</ix:nonNumeric></span></span>
&#160; <b>TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>For the transition period from &#160;&#160;&#160;&#160;&#160;&#160;&#160;to
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b><i>Commission file number: <span id="xdx_90E_edei--EntityFileNumber_c20240701__20250331_z3J3bT0QvGk3"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" id="Fact000019" name="dei:EntityFileNumber">001-41655</ix:nonNumeric></span></i></b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><img src="n257410qimg001.jpg" alt=""/></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact Name of Registrant as Specified in
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&#160;</td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&#160;</td>
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<tr style="vertical-align: top">
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Offices)</p></td>
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<tr style="vertical-align: top">
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    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&#160;</td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&#160;</td></tr>
<tr style="vertical-align: top">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Securities registered pursuant to Section
12(b) of the Act:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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<tr style="vertical-align: bottom; background-color: #CCEEFF">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
(1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding
12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. <span id="xdx_90D_edei--EntityCurrentReportingStatus_c20240701__20250331_z09vd0jOE28e"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" id="Fact000036" name="dei:EntityCurrentReportingStatus">Yes</ix:nonNumeric></span> <span style="font-family: Times New Roman, Times, Serif">&#9746;</span> No <span style="font-family: Times New Roman, Times, Serif">&#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (&#167;232.405
of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
<span id="xdx_906_edei--EntityInteractiveDataCurrent_c20240701__20250331_zSBlgf7kucdl"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" id="Fact000037" name="dei:EntityInteractiveDataCurrent">Yes</ix:nonNumeric></span> <span style="font-family: Times New Roman, Times, Serif">&#9746;</span> No <span style="font-family: Times New Roman, Times, Serif">&#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<!-- Field: Page; Sequence: 1; Options: NewSection -->
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth
company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221;, &#8220;smaller reporting
company&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Exchange Act:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
    <td colspan="2">&#160;</td>
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If an emerging growth company, indicate
by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial
accounting standards provided pursuant to Section 13(a) of the Exchange Act. <span style="font-family: Times New Roman, Times, Serif">&#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes <span style="font-family: Times New Roman, Times, Serif">&#9744;</span>
<span id="xdx_904_edei--EntityShellCompany_c20240701__20250331_zxdNdMlDFn52"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" format="ixt:booleanfalse" id="Fact000041" name="dei:EntityShellCompany">No</ix:nonNumeric></span> <span style="font-family: Times New Roman, Times, Serif">&#9746;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As of May 8, 2025, the registrant had <span id="xdx_90F_edei--EntityCommonStockSharesOutstanding_iI_pid_uShares_c20250508_zMEnaQZeYHp4"><ix:nonFraction name="dei:EntityCommonStockSharesOutstanding" contextRef="AsOf2025-05-08" id="Fact000042" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">55,709,163</ix:nonFraction></span>
Common Shares outstanding.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<!-- Field: Page; Sequence: 1 -->
    <div style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt">&#160;</p></div>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>TABLE OF CONTENTS</b></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
    <td style="width: 9%">&#160;</td>
    <td style="width: 82%; padding-left: 9pt; text-indent: -9pt">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 8%; text-align: center">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td>&#160;</td>
    <td style="padding-left: 9pt; text-indent: -9pt">&#160;</td>
    <td style="text-align: center">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center"><span style="font-size: 10pt">Page</span></td></tr>
<tr style="vertical-align: top; background-color: #CCEEFF">
    <td colspan="2"><a href="#a001"><span style="font-size: 10pt"><b>PART&#160;I &#8212; FINANCIAL INFORMATION&#160;</b></span></a></td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="vertical-align: top; background-color: white">
    <td>&#160;</td>
    <td style="padding-left: 9pt; text-indent: -9pt">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="vertical-align: top; background-color: #CCEEFF">
    <td><a href="#a002"><span style="font-size: 10pt">ITEM 1.&#160;</span></a></td>
    <td style="padding-left: 9pt; text-indent: -9pt"><a href="#a002"><span style="font-size: 10pt">FINANCIAL STATEMENTS </span></a></td>
    <td>&#160;</td>
    <td style="text-align: center"><span style="font-size: 10pt">1</span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><a href="#a003"><span style="font-size: 10pt">ITEM 2.&#160;</span></a></td>
    <td style="padding-left: 9pt; text-indent: -9pt"><a href="#a003"><span style="font-size: 10pt">MANAGEMENT&#8217;S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</span></a></td>
    <td>&#160;</td>
    <td style="text-align: center"><span style="font-size: 10pt">20</span></td></tr>
<tr style="vertical-align: top; background-color: #CCEEFF">
    <td><a href="#a004"><span style="font-size: 10pt">ITEM 3.&#160;</span></a></td>
    <td style="padding-left: 9pt; text-indent: -9pt"><a href="#a004"><span style="font-size: 10pt">QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK</span></a></td>
    <td>&#160;</td>
    <td style="text-align: center"><span style="font-size: 10pt">29</span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td><a href="#a005"><span style="font-size: 10pt">ITEM 4.&#160;</span></a></td>
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    <td>&#160;</td>
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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<tr style="vertical-align: top; background-color: #CCEEFF">
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<tr style="vertical-align: top; background-color: white">
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    <td>&#160;</td>
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</table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b><span id="a001"></span>PART&#160;I &#8212; FINANCIAL INFORMATION</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="a002"></span>ITEM 1. FINANCIAL STATEMENTS</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Contents</b></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
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    <td style="width: 1%; padding-bottom: 1.5pt">&#160;</td>
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<tr style="vertical-align: top; background-color: #CCEEFF">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt"><a href="#b001"><span style="font-size: 10pt"><i>Condensed Consolidated Balance Sheets as of March 31, 2025 and June 30, 2024 (unaudited)</i></span></a></td>
    <td>&#160;</td>
    <td style="text-align: center"><span style="font-size: 10pt"><i>2</i></span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="background-color: #CCEEFF">
    <td style="vertical-align: top; padding-right: 30pt; padding-left: 9pt; text-align: justify; text-indent: -9pt"><a href="#b002"><span style="font-size: 10pt"><i>Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and nine months ended March 31, 2025 and 2024 (unaudited)</i></span></a></td>
    <td style="vertical-align: top">&#160;</td>
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<tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="background-color: #CCEEFF">
    <td style="vertical-align: top; padding-right: 52.5pt; padding-left: 9pt; text-align: justify; text-indent: -9pt"><a href="#b003"><span style="font-size: 10pt"><i>Condensed Consolidated Statements of Cash Flows for the nine months ended March 31, 2025 and 2024 (unaudited)&#160;&#160;</i></span></a></td>
    <td style="vertical-align: top">&#160;</td>
    <td style="vertical-align: bottom; text-align: center"><span style="font-size: 10pt"><i>4</i></span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="background-color: #CCEEFF">
    <td style="vertical-align: top; padding-right: 57pt; padding-left: 9pt; text-align: justify; text-indent: -9pt"><a href="#b004"><span style="font-size: 10pt"><i>Condensed Consolidated Statements of Shareholders&#8217; Equity (Deficit) and Redeemable Noncontrolling Interest for the three and nine months ended March 31, 2025 and 2024 (unaudited)</i></span></a></td>
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    <td style="vertical-align: bottom; text-align: center"><span style="font-size: 10pt"><i>5</i></span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: center">&#160;</td></tr>
<tr style="vertical-align: top; background-color: #CCEEFF">
    <td style="padding-left: 9pt; text-align: justify; text-indent: -9pt"><a href="#b005"><span style="font-size: 10pt"><i>Notes to condensed consolidated financial statements (unaudited)</i></span></a></td>
    <td>&#160;</td>
    <td style="white-space: nowrap; text-align: center"><span style="font-size: 10pt"><i>6 - 19</i></span></td></tr>
</table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="b001"></span>Condensed Consolidated Balance Sheets </b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(expressed in thousands of
U.S. dollars, except share data) (unaudited)</p>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_495_20250331_zWrH0jcmB4re" style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td colspan="2">&#160;</td><td>&#160;</td></tr>
<tr id="xdx_400_eus-gaap--AssetsCurrentAbstract_i01B_zaE6ApsT3l47" style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_404_eus-gaap--LiabilitiesAbstract_iB_zMwiVZycOwg8" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_403_eus-gaap--LiabilitiesCurrentAbstract_i01B_zqUmcRHwzZke" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_400_eus-gaap--AccountsPayableCurrent_iI_maLCzBC7_zoTLaOAoDtA7" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_407_eus-gaap--OtherLiabilitiesCurrent_iI_maLCzBC7_zS0mld9KtVv9" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_400_eus-gaap--ConvertibleDebtNoncurrent_iI_maLCzBC7_zGBdnDwtcmc9" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_409_eus-gaap--OperatingLeaseLiabilityCurrent_iI_maLCzBC7_zrLYJrCnyNn8" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Operating lease liability</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_403_eus-gaap--LiabilitiesCurrent_iTI_mtLCzBC7_maLz4Ix_zVsN9RVCzupb" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40C_eus-gaap--AssetsNoncurrentAbstract_iB_zVfYA5UTjZ96" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_40C_eus-gaap--OtherLiabilitiesNoncurrent_iI_maLz4Ix_zZg6JhSFQyjj" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_408_ecustom--EarnoutLiabilityAtFairValue_iI_maLz4Ix_zcrGdKHDiLb4" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_40F_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_maLz4Ix_zQkVF5tlQGR2" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40F_eus-gaap--Liabilities_iTI_mtLz4Ix_maLASEzTIl_zR6cxojKfa17" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_407_eus-gaap--CommitmentsAndContingencies_iI_zNjpA1mZcCFj" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_406_eus-gaap--RedeemableNoncontrollingInterestEquityCarryingAmount_iI_maLASEzTIl_zrgBwUJ6mhgf" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount" contextRef="AsOf2024-06-30" id="Fact000120" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,534</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_409_eus-gaap--StockholdersEquityAbstract_iB_zsrFyGNurg9g" style="vertical-align: bottom; background-color: White">
    <td style="font-weight: bold; text-align: left; text-indent: -0.125in; padding-left: 0.125in">SHAREHOLDERS&#8217; EQUITY</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40F_eus-gaap--CommonStockValue_i01I_maSEzpBs_zsaWj8xhRDh8" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in">Common stock, <span id="xdx_908_eus-gaap--CommonStockParOrStatedValuePerShare_iI_pid_do_uUSDPShares_c20240630_zaUCUsmWKcB6" title="Common stock, par value (in dollars per share)"><span id="xdx_90C_eus-gaap--CommonStockParOrStatedValuePerShare_iI_pid_do_uUSDPShares_c20250331_zVor9I0RvmZi" title="Common stock, par value (in dollars per share)"><ix:nonFraction name="us-gaap:CommonStockParOrStatedValuePerShare" contextRef="AsOf2024-06-30" id="Fact000128" format="ixt-sec:numwordsen" decimals="INF" unitRef="USDPShares"><ix:nonFraction name="us-gaap:CommonStockParOrStatedValuePerShare" contextRef="AsOf2025-03-31" id="Fact000130" format="ixt-sec:numwordsen" decimals="INF" unitRef="USDPShares">no</ix:nonFraction></ix:nonFraction></span></span> par value, <span id="xdx_904_eus-gaap--CommonStockSharesAuthorizedUnlimited_dxL_c20240701__20250331_zLgk48CZbHGb" title="Common stock, authorized::XDX::Unlimited"><span id="xdx_900_eus-gaap--CommonStockSharesAuthorizedUnlimited_dxL_c20230701__20240630_zOL1zYn6emw3" title="Common stock, authorized::XDX::Unlimited"><span style="-sec-ix-hidden: xdx2ixbrl0132"><span style="-sec-ix-hidden: xdx2ixbrl0134">unlimited</span></span></span></span> shares authorized; <span id="xdx_908_eus-gaap--CommonStockSharesOutstanding_iI_pid_uShares_c20250331_z6dNyarGyI0e" title="Common stock, shares outstanding"><ix:nonFraction name="us-gaap:CommonStockSharesOutstanding" contextRef="AsOf2025-03-31" id="Fact000136" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">47,188,119</ix:nonFraction></span> and <span id="xdx_905_eus-gaap--CommonStockSharesOutstanding_iI_pid_uShares_c20240630_zNTAMQoYniWg" title="Common stock, shares outstanding"><ix:nonFraction name="us-gaap:CommonStockSharesOutstanding" contextRef="AsOf2024-06-30" id="Fact000138" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">38,062,647</ix:nonFraction></span> shares outstanding, respectively</td><td>&#160;</td>
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<tr id="xdx_40D_eus-gaap--RetainedEarningsAccumulatedDeficit_i01I_maSEzpBs_zLUMU6g7mlGh" style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:RetainedEarningsAccumulatedDeficit" contextRef="AsOf2025-03-31" id="Fact000140" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">169,730</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:RetainedEarningsAccumulatedDeficit" contextRef="AsOf2024-06-30" id="Fact000141" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">161,912</ix:nonFraction></td><td style="text-align: left">)</td></tr>
<tr id="xdx_401_eus-gaap--AccumulatedOtherComprehensiveIncomeLossNetOfTax_i01I_maSEzpBs_z0kvWD2QGVEl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Accumulated other comprehensive loss</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax" contextRef="AsOf2025-03-31" id="Fact000143" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">911</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_409_eus-gaap--StockholdersEquity_i01TI_mtSEzpBs_maLASEzTIl_zqH4EIuxqI03" style="vertical-align: bottom; background-color: White">
    <td style="font-weight: bold; text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.125in">Total shareholders&#8217; equity</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_40C_eus-gaap--LiabilitiesAndStockholdersEquity_i01TI_mtLASEzTIl_zzoszzeLF3Ah" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left; padding-bottom: 2.5pt; text-indent: -0.125in; padding-left: 0.125in">Total liabilities, redeemable noncontrolling interest, and shareholders&#8217; equity</td><td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:LiabilitiesAndStockholdersEquity" contextRef="AsOf2024-06-30" id="Fact000150" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">20,070</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">The accompanying notes are an integral part
of these condensed consolidated financial statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="b002"></span>Condensed Consolidated Statements of Operations and Comprehensive
Loss </b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(expressed in thousands of
U.S. dollars, except share and per share data) (unaudited)</p>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_30E_113_pn3n3_zXKYNU3g2D1j" summary="xdx: Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited)" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
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<tr id="xdx_405_eus-gaap--OperatingExpensesAbstract_iB_zsfGkpacNole" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_404_eus-gaap--LaborAndRelatedExpense_maOEzhX8_ztpHlmFM3Pvh" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40E_eus-gaap--ProfessionalFees_maOEzhX8_zY0MmSPHKG0c" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Professional fees</td><td>&#160;</td>
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<tr id="xdx_40E_ecustom--ExplorationExpenditures_maOEzhX8_zeQtSBtpkN17" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Exploration expenditures</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:ExplorationExpenditures" contextRef="From2024-01-012024-03-31" id="Fact000168" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">489</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_405_eus-gaap--OtherGeneralExpense_maOEzhX8_zIZQJftdLa19" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in; text-indent: -0.125in">Other operating expenses</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_40E_eus-gaap--OperatingExpenses_iT_mtOEzhX8_msILFCOzUL3_zJ56mFCgdwYf" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40C_ecustom--ChangeInFairValueOfEarnoutSharesLiability_iN_di_msILFCOzUL3_zDHT1HdbsO51" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_405_ecustom--ChangeInFairValueOfWarrantLiability_maILFCOzUL3_z3896hU7OGC" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Change in fair value of warrant liabilities</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="niobf:ChangeInFairValueOfWarrantLiability" contextRef="From2023-07-012024-03-31" id="Fact000190" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">580</ix:nonFraction></td><td style="text-align: left">)</td></tr>
<tr id="xdx_405_ecustom--ChangeInFairValueOfConvertibleNotes_iN_di_maILFCOzUL3_zJZB74Tjb5Ob" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Change in fair value of convertible notes</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0193">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:ChangeInFairValueOfConvertibleNotes" contextRef="From2024-07-01to2025-03-31" id="Fact000194" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">40</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0195">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_400_eus-gaap--InterestExpenseNonoperating_iN_di_msILFCOzUL3_zDFEXWKxBGHk" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Interest expense</td><td>&#160;</td>
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<tr id="xdx_406_eus-gaap--ForeignCurrencyTransactionGainLossBeforeTax_maILFCOzUL3_zLozefrvtejb" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Foreign exchange (gain) loss</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:ForeignCurrencyTransactionGainLossBeforeTax" contextRef="From2024-01-012024-03-31" id="Fact000203" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">27</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
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<tr id="xdx_407_eus-gaap--OtherIncome_maILFCOzUL3_zH7OQ3pzOct3" style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:OtherIncome" contextRef="From2024-01-012024-03-31" id="Fact000208" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">195</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:OtherIncome" contextRef="From2024-07-01to2025-03-31" id="Fact000209" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">122</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:OtherIncome" contextRef="From2023-07-012024-03-31" id="Fact000210" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">195</ix:nonFraction></td><td style="text-align: left">)</td></tr>
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<tr id="xdx_402_eus-gaap--ComprehensiveIncomeNetOfTax_iT_mtCINOTzPVN_maOEMIBz16d_z33cUbXlYGCe" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_408_eus-gaap--OciEquityMethodInvestmentBeforeTaxParent_iT_mtOEMIBz16d_zNcqTIXGiPcd" style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
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<tr id="xdx_40B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_zZQ3YJhGGRwa" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40E_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_zCC6JP0VflQd" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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</table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">The accompanying notes are an integral part
of these condensed consolidated financial statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="b003"></span>Condensed Consolidated Statements of Cash Flows </b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(expressed in thousands of
U.S. dollars) (unaudited)</p>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_30F_112_pn3n3_zw5qXKELRQ0d" summary="xdx: Statement - Condensed Consolidated Statements of Cash Flows (unaudited)" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; padding-left: 0.125in; text-indent: -0.125in; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_49C_20240701__20250331_znx3xs8yLv04" style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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<tr id="xdx_408_ecustom--ChangeInValuationOfWarrantLiabilities_i01_maATRNIzNmc_zESWt1os8Ytg" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Change in valuation of warrant liabilities</td><td>&#160;</td>
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<tr id="xdx_40A_ecustom--OtheroperatingGainsLosses_i01N_di_msATRNIzNmc_zjuL9zpyi6s3" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Other gain</td><td>&#160;</td>
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<tr id="xdx_407_eus-gaap--EmployeeBenefitsAndShareBasedCompensation_i01_maATRNIzNmc_zp6wMXjyMiXf" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_408_eus-gaap--FairValueAdjustmentOfWarrants_i01_maATRNIzNmc_zoNNqiOYgNT3" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Fair value of private placement warrants</td><td>&#160;</td>
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<tr id="xdx_403_eus-gaap--AccretionExpense_i01_maATRNIzNmc_zG7eckI7qEY6" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Accretion of convertible debt</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:AccretionExpense" contextRef="From2024-07-01to2025-03-31" id="Fact000276" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">43</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_407_ecustom--ChangeInFairValueOfConvertibleNote_i01_maATRNIzNmc_ziXNBfhgd3qb" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Change in fair value of convertible note</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:ChangeInFairValueOfConvertibleNote" contextRef="From2024-07-01to2025-03-31" id="Fact000279" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">40</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0280">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_401_ecustom--FairValueOfCommitmentSharesIssued_i01_maATRNIzNmc_zzpikPYUsXZ8" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0.375in; text-indent: -0.125in">Yorkville share issuances</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:FairValueOfCommitmentSharesIssued" contextRef="From2024-07-01to2025-03-31" id="Fact000282" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">80</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_408_eus-gaap--Depreciation_i01_maATRNIzNmc_zFVevg2J46p2" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.375in; text-indent: -0.125in">Depreciation</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:Depreciation" contextRef="From2024-07-01to2025-03-31" id="Fact000285" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:Depreciation" contextRef="From2023-07-012024-03-31" id="Fact000286" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_400_eus-gaap--UnrealizedGainLossOnInvestments_i01N_di_msATRNIzNmc_zpRIJT5Ewr6e" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Unrealized loss on equity securities</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:UnrealizedGainLossOnInvestments" contextRef="From2024-07-01to2025-03-31" id="Fact000288" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">2</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:UnrealizedGainLossOnInvestments" contextRef="From2023-07-012024-03-31" id="Fact000289" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">2</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40D_eus-gaap--OperatingLeaseImpairmentLoss_i01_maATRNIzNmc_zjkkjTqVZDN9" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.375in; text-indent: -0.125in">Non-cash lease activity</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:OperatingLeaseImpairmentLoss" contextRef="From2024-07-01to2025-03-31" id="Fact000291" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">4</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:OperatingLeaseImpairmentLoss" contextRef="From2023-07-012024-03-31" id="Fact000292" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">21</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_40A_ecustom--AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities_i01T_mtATRNIzNmc_maNCPBUztn2_zULN4N60IZUb" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="niobf:AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" contextRef="From2024-07-01to2025-03-31" id="Fact000294" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">5,891</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="niobf:AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" contextRef="From2023-07-012024-03-31" id="Fact000295" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">8,377</ix:nonFraction></td><td style="text-align: left">)</td></tr>
<tr id="xdx_400_eus-gaap--IncreaseDecreaseInOperatingCapitalAbstract_iB_zwpV0XUdP807" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Change in working capital items:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_409_eus-gaap--IncreaseDecreaseInPrepaidExpense_i01N_di_msNCPBUztn2_zNT8fHNf2M6j" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.375in; text-indent: -0.125in">Prepaid expenses</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidExpense" contextRef="From2024-07-01to2025-03-31" id="Fact000300" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">836</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidExpense" contextRef="From2023-07-012024-03-31" id="Fact000301" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,124</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_402_eus-gaap--IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_maNCPBUztn2_zfrofk42S1a7" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.375in; text-indent: -0.125in">Accounts payable and accrued liabilities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" contextRef="From2024-07-01to2025-03-31" id="Fact000303" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">820</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" contextRef="From2023-07-012024-03-31" id="Fact000304" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,637</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_401_eus-gaap--NetCashProvidedByUsedInOperatingActivities_iT_mtNCPBUztn2_maCCERCzpFU_z9mcZn4UkgE5" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left; padding-bottom: 1pt; padding-left: 0.125in; text-indent: -0.125in">Net cash used in operating activities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivities" contextRef="From2024-07-01to2025-03-31" id="Fact000306" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">5,875</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivities" contextRef="From2023-07-012024-03-31" id="Fact000307" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">5,616</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_406_eus-gaap--NetCashProvidedByUsedInInvestingActivitiesAbstract_iB_z612DbCtGmCi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left; padding-left: 0.125in; text-indent: -0.125in">CASH FLOWS FROM INVESTING ACTIVITIES</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40B_eus-gaap--PaymentsToAcquireOtherInvestments_iN_di_msNCPBUzMyR_zxaw3BTwyikk" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.375in; text-indent: -0.125in">Acquisition of land and buildings</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:PaymentsToAcquireOtherInvestments" contextRef="From2024-07-01to2025-03-31" id="Fact000312" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">5</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0313">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_409_eus-gaap--NetCashProvidedByUsedInInvestingActivities_iT_mtNCPBUzMyR_maCCERCzpFU_zANgSIDqXAa" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left; padding-bottom: 1pt; padding-left: 0.125in; text-indent: -0.125in">Net cash used in investing activities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInInvestingActivities" contextRef="From2024-07-01to2025-03-31" id="Fact000315" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">5</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0316">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_405_eus-gaap--NetCashProvidedByUsedInFinancingActivitiesAbstract_iB_zJlxxz3Hs9O1" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left; padding-left: 0.125in; text-indent: -0.125in">CASH FLOWS FROM FINANCING ACTIVITIES</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_409_eus-gaap--ProceedsFromIssuanceOfCommonStock_maNCPBUzvya_zrwTQqsXpBzb" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Proceeds from issuance of capital stock</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfCommonStock" contextRef="From2024-07-01to2025-03-31" id="Fact000321" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">14,516</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromIssuanceOfCommonStock" contextRef="From2023-07-012024-03-31" id="Fact000322" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,663</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40A_eus-gaap--ProceedsFromRelatedPartyDebt_maNCPBUzvya_zp4vhgaO7Fji" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Related party debt draws</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromRelatedPartyDebt" contextRef="From2024-07-01to2025-03-31" id="Fact000324" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">504</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0325">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_404_eus-gaap--RepaymentsOfRelatedPartyDebt_iN_di_msNCPBUzvya_zgyUs7jkmti5" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Related party debt repayments</td><td>&#160;</td>
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<tr id="xdx_407_ecustom--PaymentsOfStockIssuanceCost_maNCPBUzvya_z4ecDHTXb6V" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_409_eus-gaap--CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_iE_zNRNQ55OBNyd" style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_408_eus-gaap--SupplementalCashFlowInformationAbstract_iB_z06wRW8V8HOe" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_403_ecustom--ConversionsOfDebtForCommonShares_i01_zbgZUlOvizh1" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_402_ecustom--ValueOfWarrantsIssued_i01_zLG2ctCEUhYf" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40A_eus-gaap--InterestPaidNet_i01_zexp7mEXso2d" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.125in; text-indent: -0.125in">Interest paid</td><td>&#160;</td>
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</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">The accompanying notes are an integral part
of these condensed consolidated financial statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="b004"></span>Condensed Consolidated Statements of Shareholders&#8217;
Equity (Deficit) and Redeemable Noncontrolling Interest </b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(expressed in thousands of
U.S. dollars, except for share data) (unaudited)</p>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" id="xdx_30E_114_pn3n3_ziMONP4mDxQ4" summary="xdx: Statement - Condensed Consolidated Statements of Shareholders' Equity (Deficit) and Redeemable Noncontrolling Interest (unaudited)" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
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<tr id="xdx_43D_c20240101__20240331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iS_zgSyu17VgzX2" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_404_ecustom--StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_zt8R0xESyWB6" style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0372">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40F_eus-gaap--StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments_zgz7PVVFBH67" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Debt conversions</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_434_c20250101__20250331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iS_zXupWWBriydh" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_400_ecustom--StockIssuedDuringPeriodValueEquityPlacement_zjmKoo3YyCSd" style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0436">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_401_ecustom--StockIssuedDuringPeriodValueStockWarrantsExercised_zeAPuwltCkDb" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Warrant exercises</td><td>&#160;</td>
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<tr id="xdx_406_eus-gaap--StockIssuedDuringPeriodValueStockOptionsExercised_zZVXoqNzU7fh" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_404_ecustom--StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_zF805MmOZXPl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_40C_eus-gaap--StockIssuedDuringPeriodValueNewIssues_zKxAUQLUfAtd" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_403_eus-gaap--NetIncomeLoss_z9byLmCHTiJ7" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in; text-indent: -0.125in">Loss for the period</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_438_c20250101__20250331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iE_ztPFw7ChYwIf" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; padding-bottom: 2.5pt; padding-left: 0.125in; text-indent: -0.125in">Balance, March 31, 2025</td><td style="padding-bottom: 2.5pt">&#160;</td>
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</table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_43C_c20230701__20240331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iS_zwTa9qSjXSvl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-bottom: Black 1pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1pt solid; width: 9%; text-align: right"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2023-06-30_us-gaap_CommonStockMember" id="Fact000490" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">140,421</ix:nonFraction></td><td style="width: 1%; padding-bottom: 1pt; text-align: left">&#160;</td><td style="width: 1%; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1pt solid; width: 9%; text-align: right">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2023-06-30_us-gaap_RetainedEarningsMember" id="Fact000491" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">150,477</ix:nonFraction></td><td style="width: 1%; padding-bottom: 1pt; text-align: left">)</td><td style="width: 1%; padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1pt solid; width: 9%; text-align: right">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2023-06-30_us-gaap_AccumulatedOtherComprehensiveIncomeMember" id="Fact000492" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">911</ix:nonFraction></td><td style="width: 1%; padding-bottom: 1pt; text-align: left">)</td><td style="width: 1%; padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; width: 1%; text-align: left">$</td><td style="border-bottom: Black 1pt solid; width: 9%; text-align: right"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2023-06-30_custom_RedeemableNoncontrollingInterestMember" id="Fact000494" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2,100</ix:nonFraction></td><td style="width: 1%; padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_400_ecustom--StockIssuedDuringPeriodValueEquityPlacement_zEvZbiY4w1ek" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Equity placements</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0499">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr id="xdx_40C_eus-gaap--StockIssuedDuringPeriodValueNewIssues_zHAiqLCLBxDc" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40D_eus-gaap--StockIssuedDuringPeriodValueStockDividend_iN_di_zUZcxTtAwlHh" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_40C_eus-gaap--StockIssuedDuringPeriodValueIssuedForServices_zuIxtyzMU4Rc" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40E_eus-gaap--AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_z7o4u0YJ4fsl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_401_eus-gaap--NetIncomeLoss_zP6wqY8nkaHf" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_432_c20230701__20240331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iE_zitzCUhFJspi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in; text-indent: -0.125in">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_434_c20240701__20250331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iS_z1zhLgCjR3Ae" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_400_ecustom--StockIssuedDuringPeriodValueEquityPlacement_zh654mD6k4X" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Equity placements</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0582">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_401_ecustom--StockIssuedDuringPeriodValueStockWarrantsExercised_zMPDrpvWYiz6" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Warrant exercises</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_983_ecustom--StockIssuedDuringPeriodValueSharesStockWarrantsExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z8FkaD4WwKq8" title="Warrant exercises (in shares)" style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueSharesStockWarrantsExercised" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000592" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">230,000</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0587">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0588">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0590">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_406_eus-gaap--StockIssuedDuringPeriodValueStockOptionsExercised_z7ew4EW4wlNh" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Option exercises</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0594">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0595">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0596">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0597">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0598">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_404_ecustom--StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_zIbvYA1mCoRl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Yorkville equity facility draws</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0603">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0604">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws" contextRef="From2024-07-01to2025-03-31" id="Fact000605" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,191</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0606">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_404_ecustom--StockIssuedDuringPeriodValueRedemptionsOfVestedShares_zpch13mTxKh9" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.25in; text-indent: -0.125in">Redemptions of vested shares</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_982_ecustom--StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zIVZDTB89MK1" title="Redemptions of vested shares (in shares)" style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000616" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">348,085</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueRedemptionsOfVestedShares" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000610" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">119</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0611">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0612">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueRedemptionsOfVestedShares" contextRef="From2024-07-01to2025-03-31" id="Fact000613" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">119</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="niobf:StockIssuedDuringPeriodValueRedemptionsOfVestedShares" contextRef="From2024-07-012025-03-31_custom_RedeemableNoncontrollingInterestMember" id="Fact000614" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">119</ix:nonFraction></td><td style="text-align: left">)</td></tr>
<tr id="xdx_40F_eus-gaap--StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments_zHJfInXDxfN7" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Debt conversions</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_989_ecustom--StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zA8xJA9kR4W9" title="Debt conversions (in shares)" style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000624" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">258,347</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000618" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">501</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0619">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0620">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" contextRef="From2024-07-01to2025-03-31" id="Fact000621" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">501</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0622">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40A_ecustom--StockIssuedDuringPeriodValueStockWarrantsIssued_zNNwHSFoQN53" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.25in; text-indent: -0.125in">Issuance of warrants</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">-</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueStockWarrantsIssued" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000626" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2,262</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0627">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0628">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="niobf:StockIssuedDuringPeriodValueStockWarrantsIssued" contextRef="From2024-07-01to2025-03-31" id="Fact000629" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2,262</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0630">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40E_eus-gaap--AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_z1VEGnfs5VT5" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.25in; text-indent: -0.125in">Share-based compensation</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">-</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0633">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0634">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" contextRef="From2024-07-01to2025-03-31" id="Fact000635" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">788</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0636">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40C_eus-gaap--StockIssuedDuringPeriodValueNewIssues_ztDPXGVDazPi" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.25in; text-indent: -0.125in">Share issuance costs</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">-</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueNewIssues" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000638" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">2,133</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0639">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0640">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueNewIssues" contextRef="From2024-07-01to2025-03-31" id="Fact000641" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">2,133</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0642">-</span></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40E_eus-gaap--NetIncomeLoss_zOLqZ1OsQXNb" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in; text-indent: -0.125in">Loss for the period</td><td style="padding-bottom: 1pt">&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">The accompanying notes are an integral part
of these condensed consolidated financial statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>




<p style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b><span id="b005"></span>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000658" name="us-gaap:NatureOfOperations"><p id="xdx_80F_eus-gaap--NatureOfOperations_zWqnmX2DzGZj" style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.</span></td>
    <td id="xdx_821_z7LLQ0g1sVr4" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">DESCRIPTION
    OF BUSINESS</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">NioCorp
Developments Ltd. (&#8220;we,&#8221; &#8220;us,&#8221; &#8220;our,&#8221; &#8220;NioCorp&#8221; or the &#8220;Company&#8221;)
was incorporated on February 27, 1987, under the laws of the Province of British Columbia and currently operates in <span id="xdx_900_eus-gaap--NumberOfReportableSegments_dxL_uNumber_c20240701__20250331_zpzwVddMG7hc" title="Number of reportable segments::XDX::1"><span style="-sec-ix-hidden: xdx2ixbrl0660">one</span></span> reportable
operating segment consisting of exploration and development of mineral deposits in North America, specifically, the Company&#8217;s
niobium, scandium, and titanium project (the &#8220;Elk Creek Project&#8221;) located in southeastern Nebraska.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company currently earns no operating revenues and will require additional capital in order to advance the Elk Creek Project to
construction and commercial operation. As further discussed in Note 3, these matters raised substantial doubt about the Company&#8217;s
ability to continue as a going concern, and the Company is dependent upon the generation of profits from mineral properties, obtaining
additional financing and maintaining continued support from its shareholders and creditors.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
interim condensed consolidated financial statements have been prepared on a going concern basis that contemplates the realization
of assets and discharge of liabilities at their carrying values in the normal course of business for the foreseeable future. These
financial statements do not reflect any adjustments that may be necessary if the Company is unable to continue as a going concern.</span></p>

</ix:nonNumeric><p id="xdx_81F_z7DuaUUkMl04" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000662" name="us-gaap:BasisOfAccounting"><p id="xdx_802_eus-gaap--BasisOfAccounting_zx86btQRayqk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.</span></td>
    <td id="xdx_827_zQhxTIzb4UY" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">BASIS
    OF PRESENTATION</span></td></tr>
</table>
<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000664" name="us-gaap:BasisOfAccountingPolicyPolicyTextBlock"><p id="xdx_848_eus-gaap--BasisOfAccountingPolicyPolicyTextBlock_zqBdriykypCb" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</span></td>
    <td id="xdx_863_zCzZ4rG7QJQ9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basis
    of Presentation and Consolidation</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting
principles of the United States of America (&#8220;U.S. GAAP&#8221;) and the rules and regulations of the Securities and Exchange
Commission (&#8220;SEC&#8221;). The interim condensed consolidated financial statements include the consolidated accounts of the
Company and its wholly owned subsidiaries with all significant intercompany transactions eliminated. The accounting policies followed
in preparing these interim condensed consolidated financial statements are those used by the Company as set out in the audited
consolidated financial statements for the year ended June 30, 2024. Certain transactions include reference to Canadian dollars
(&#8220;C$&#8221;) where applicable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the opinion of management, all adjustments considered necessary (including normal recurring adjustments) for a fair statement
of the financial position, results of operations, and cash flows as of March 31, 2025, and for all periods presented, have been
included in these interim condensed consolidated financial statements. Certain information and footnote disclosures normally included
in the consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to appropriate
SEC rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the audited
consolidated financial statements for the year ended June 30, 2024. The interim results are not necessarily indicative of results
for the full year ending June 30, 2025, or future operating periods.</span></p>

</ix:nonNumeric><p id="xdx_859_zq8owm1n5B25" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000666" name="us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock"><p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zYzGVE81EFQ1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</span></td>
    <td id="xdx_862_zRjSCAi4bsq9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Recent
    Accounting Standards</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="text-decoration: underline">Issued
and Not Effective</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2023, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;)
2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU expand public
entities&#8217; segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the
Chief Operating Decision Maker and included within each reported measure of segment profit or loss, an amount and description
of its composition for other segment items, and interim disclosures of a reportable segment&#8217;s profit or loss and assets.
The ASU will be effective for our annual report for the period ending June 30, 2025, and for interim <span style="font: 10pt Times New Roman, Times, Serif">period reports beginning
thereafter. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<ix:exclude><!-- Field: Page; Sequence: 1; Options: NewSection; Value: 6 -->
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>

<ix:exclude><p id="xdx_23C_zTpDYInLE4w2" style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p></ix:exclude>

<ix:exclude><p id="xdx_236_zwMwwxXafKU1" style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p></ix:exclude>

<ix:exclude><p id="xdx_232_zUGduXtUjloe" style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the
transparency and decision usefulness of income tax disclosures primarily through changes to the rate reconciliation and income
taxes paid information. ASU 2023-09&#160;is effective for our annual report for the period ending June 30, 2027, and for interim
period reports beginning thereafter. Early adoption is permitted and the amendments should be applied prospectively; however,
retrospective application is permitted. We are currently evaluating the impact of this ASU on our consolidated financial statements
and related disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures
(Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires the disclosure of additional information
related to certain costs and expenses, including amounts of inventory purchases, employee compensation, and depreciation and amortization
included in each income statement line item. This ASU also requires disclosure of the total amount of selling expenses and our
definition of selling expenses. This ASU is effective for our annual report for the period ending June 30, 2028, and for interim
period reports beginning thereafter on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating
the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, new accounting pronouncements are issued by the FASB that are adopted by the Company as of the specified effective
date. Unless otherwise discussed, management believes that the impact of recently issued standards did not or will not have a
material impact on the Company&#8217;s consolidated financial statements upon adoption.</span></p>

</ix:nonNumeric><p id="xdx_85B_zlZ2SpKmfv1b" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000671" name="us-gaap:UseOfEstimates"><p id="xdx_842_eus-gaap--UseOfEstimates_z71Bubq5JSH4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</span></td>
    <td id="xdx_861_zdYf8kkPbvTi" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Use
    of Estimates</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date
of the financial statements, and the reported amounts of expenses during the reporting period. The Company regularly evaluates
estimates and assumptions related to the carrying value of long-term assets, deferred income tax assets and related valuations,
liabilities related to the April 2024 Notes, Earnout Shares, Private Warrants, and November Private Warrants (each, as defined
below), and share-based compensation. The Company bases its estimates and assumptions on current facts, historical experience,
and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making
judgments about the other sources. The actual results experienced by the Company may differ materially and adversely from the
Company&#8217;s estimates. To the extent there are material differences between estimates and the actual results, future results
of operations will be affected.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
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of post-transaction losses at Elk Creek Resources Corp. (&#8220;ECRC&#8221;), a partial release of the valuation allowance attributed
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statement of operations and comprehensive loss for the nine months ended March 31, 2024. The Company maintains a full valuation
allowance against future income tax assets as it is more likely than not that all of the assets will not be realized.</span></p>

</ix:nonNumeric><p id="xdx_853_znrVIgTwydTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000677" name="us-gaap:EarningsPerSharePolicyTextBlock"><p id="xdx_84C_eus-gaap--EarningsPerSharePolicyTextBlock_zQn1wmE6i4qh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</span></td>
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000679" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"><p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. <span id="xdx_8B4_z3WPG2KSByGh">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share
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<ix:exclude><p id="xdx_236_zsnfKOdxC2Q1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p></ix:exclude>

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<ix:exclude><p id="xdx_235_z1ZZ3e6SwuTk" style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p></ix:exclude>

<ix:exclude><p id="xdx_23D_zghQ06YOGA94" style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p></ix:exclude>

<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td colspan="2" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td></tr>
<tr style="vertical-align: bottom">
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Ended March 31,</td><td>&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Net loss attributable to vested shares of ECRC Class B common stock</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">Denominator:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>

</ix:nonNumeric><p id="xdx_8AE_zWHHH8IQ5bTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following common shares, no par value, of the Company (&#8220;Common Shares&#8221;) underlying options to purchase Common Shares
(&#8220;Options&#8221;), Common Share purchase warrants (&#8220;Warrants&#8221;), and outstanding convertible debt were&#160;antidilutive&#160;due
to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the three-month
periods indicated below.</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000740" name="us-gaap:ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock"><p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden">Schedule of excluded from the dilutive securities</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt">Convertible debt</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 2pt">Total potential dilutive securities</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 2pt solid; text-align: right"><span id="xdx_901_eus-gaap--DilutiveSecurities_c20250101__20250331_fKDEpKDIp_zQKTcSCTFNAg" title="Total potential dilutive securities"><span id="xdx_90C_eus-gaap--DilutiveSecurities_c20240701__20250331_fKDEpKDIp_zoG2Xk15ISOi" title="Total potential dilutive securities"><ix:nonFraction name="us-gaap:DilutiveSecurities" contextRef="From2025-01-012025-03-31" id="Fact000766" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD"><ix:nonFraction name="us-gaap:DilutiveSecurities" contextRef="From2024-07-01to2025-03-31" id="Fact000768" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">32,593,695</ix:nonFraction></ix:nonFraction></span></span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 2pt solid; text-align: right"><span id="xdx_901_eus-gaap--DilutiveSecurities_c20240101__20240331_fKDEpKDIp_z6etRUOkCaB6" title="Total potential dilutive securities"><span id="xdx_90B_eus-gaap--DilutiveSecurities_c20230701__20240331_fKDEpKDIp_z5lR1TSUZJDd" title="Total potential dilutive securities"><ix:nonFraction name="us-gaap:DilutiveSecurities" contextRef="From2024-01-012024-03-31" id="Fact000770" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD"><ix:nonFraction name="us-gaap:DilutiveSecurities" contextRef="From2023-07-012024-03-31" id="Fact000772" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">21,863,005</ix:nonFraction></ix:nonFraction></span></span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="width: 0.5in">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span id="xdx_F00_zJjeOH4F0ZDc" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span id="xdx_F1C_zaTaMNK2FtTl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote000773" xml:lang="en-US">The
    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
    calculations as required if the securities were dilutive.</ix:footnote></span></td></tr>
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span id="xdx_F03_z05lwOc5tmkg" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span id="xdx_F14_z5tyB0Ae0f7d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote000774" xml:lang="en-US">Earnout
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<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
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</table>
</ix:nonNumeric><p id="xdx_8A3_zE01D2VS8jrb" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_85B_zKiIp3fwUGZ3" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_818_z8ayeOQPLky2" style="margin-top: 0; margin-bottom: 0"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000777" name="us-gaap:SubstantialDoubtAboutGoingConcernTextBlock"><p id="xdx_803_eus-gaap--SubstantialDoubtAboutGoingConcernTextBlock_zjlJUzONHnT" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</span></td>
    <td id="xdx_82F_z0BgpKaJRpni" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">GOING
    CONCERN</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company incurred a loss of $<span id="xdx_906_eus-gaap--NetIncomeLoss_iN_pn3n3_di_uUSD_c20240701__20250331_zeM39FfYDk9e" title="Net loss"><ix:nonFraction name="us-gaap:NetIncomeLoss" contextRef="From2024-07-01to2025-03-31" id="Fact000779" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">7,818</ix:nonFraction></span>
for the nine months ended March 31, 2025 (nine months ended March 31, 2024 - $<span id="xdx_901_eus-gaap--NetIncomeLoss_iN_pn3n3_di_c20230701__20240331_zoced8GJ0jM7" title="Net loss"><ix:nonFraction name="us-gaap:NetIncomeLoss" contextRef="From2023-07-012024-03-31" id="Fact000781" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">10,560</ix:nonFraction></span>)
and had an accumulated deficit of $<span id="xdx_901_eus-gaap--InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_iI_pn3n3_uUSD_c20250331_zZyOKHoaFzL6" title="Capital deficit"><ix:nonFraction name="us-gaap:InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" contextRef="AsOf2025-03-31" id="Fact000783" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">169,730</ix:nonFraction></span>
as of March 31, 2025. As a development stage issuer, the Company has not yet commenced its mining operations and accordingly
does not generate any revenue. As of March 31, 2025, the Company had cash of $<span id="xdx_902_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_uUSD_c20250331_zTTu7lYW8mW8" title="Cash"><ix:nonFraction name="us-gaap:CashAndCashEquivalentsAtCarryingValue" contextRef="AsOf2025-03-31" id="Fact000785" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,294</ix:nonFraction></span>,
which will not be sufficient to fund normal operations for the next twelve months from the date these interim condensed consolidated financial statements are issued. These conditions and events raise
substantial doubt about the Company&#8217;s ability to continue as a going concern.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
response to these conditions and events, the Company plans to obtain additional financing and while it has been successful in doing so in the past, there can be no assurance it will be able to do so in
the future. The Company&#8217;s plans to obtain additional financing have not been finalized, are subject to market conditions,
and are not within </span></p>

<ix:exclude><p id="xdx_236_zKS8hhK9SnJl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p></ix:exclude>

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<ix:exclude><p id="xdx_230_z46FEXYx7hJ6" style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p></ix:exclude>

<ix:exclude><p id="xdx_234_zfVrha3Pg804" style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p></ix:exclude>

<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">the Company&#8217;s control and therefore cannot be deemed probable. Further, the Company will be required
to raise additional funds for the construction and commencement of operations. As a result, the Company has concluded that management&#8217;s
plans do not alleviate substantial doubt about the Company&#8217;s ability to continue as a going concern.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
interim condensed consolidated financial statements do not include any adjustments related to the recoverability and classification
of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.</span></p>

</ix:nonNumeric><p id="xdx_819_ztLbXYeCFi98" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000790" name="us-gaap:MineralIndustriesDisclosuresTextBlock"><p id="xdx_80E_eus-gaap--MineralIndustriesDisclosuresTextBlock_z2BLVfqkVd5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the nine months ended March 31, 2025, the Company completed negotiations with landowners in Nebraska and entered into contract
amendments which extended the option periods by approximately five years for each option to purchase agreement (&#8220;OTP&#8221;)
covering six parcels of land for project construction and operation which the Company does not already own. The Company paid $196
upon closing of the OTP extensions and will make periodic payments totaling $206 over the extension period.</span></p>

</ix:nonNumeric><p id="xdx_81D_zyWOc9eVmnw1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

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<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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<tr style="display: none; vertical-align: bottom; visibility: hidden">
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    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_493_20250331_zASufSodagC3" style="display: none; text-align: center; visibility: hidden">&#160;</td>
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<tr style="vertical-align: bottom">
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<tr id="xdx_409_eus-gaap--AccountsPayableTradeCurrent_iI_pn3n3_uUSD_zlmwR5NJbxJl" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_402_eus-gaap--TaxesPayableCurrentAndNoncurrent_iI_pn3n3_uUSD_zaWzpyZE7rtc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr id="xdx_405_eus-gaap--AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_iI_pn3n3_uUSD_zFhBoRWlhgcl" style="vertical-align: bottom; background-color: White">
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<tr id="xdx_40F_eus-gaap--AccountsPayableAndAccruedLiabilitiesCurrent_iI_pn3n3_uUSD_z8Jj3Ls29hne" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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</ix:nonNumeric><p id="xdx_8A4_zvHoz8ZR2oyc" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_81B_zwXK9g6mqhgk" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="margin-top: 0; margin-bottom: 0"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000811" name="us-gaap:LongTermDebtTextBlock"><p id="xdx_800_eus-gaap--LongTermDebtTextBlock_z6UiuUQ30WZh" style="margin-top: 0; margin-bottom: 0"></p>

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<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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</table>
<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
July 19, 2024, the Company and Yorkville entered into a make-whole payment agreement under which Yorkville agreed to convert the
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000819" name="us-gaap:ConvertibleDebtTableTextBlock"><p id="xdx_899_eus-gaap--ConvertibleDebtTableTextBlock_z6w9PyTh1kbb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8BE_z7XzYVYxRX5a">The
change in the Convertible Debentures is presented below</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Balance as of June 30, 2024</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>

</ix:nonNumeric><p id="xdx_8AB_z3E9DsarTXE4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<ix:exclude><!-- Field: Page; Sequence: 4; Value: 6 -->
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<ix:exclude><p id="xdx_23D_zdM1VDv1ln5" style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p></ix:exclude>

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except share and per share data or as otherwise stated) (unaudited)</p></ix:exclude>

<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000831" name="us-gaap:ScheduleOfOtherNonoperatingExpenseByComponentTextBlock"><p id="xdx_89F_eus-gaap--ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_ztsuvhjVtZmk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B0_zYt3EFE3oUue">The
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; padding-left: 0.25in">&#160;</td><td>&#160;</td>
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March 31,</td><td>&#160;</td><td>&#160;</td>
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March 31,</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20250101__20250331_zS18wAdgHx8g" title="Amortization of discount and issuance costs" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0841">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240101__20240331_z6ViXviohUlb" title="Amortization of discount and issuance costs" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:AmortizationOfFinancingCosts" contextRef="From2024-01-012024-03-31" id="Fact000843" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">971</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; padding-left: 0.25in">Total</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AccretionExpense_pn3n3_uUSD_c20250101__20250331_zwVAKuZIas2i" title="Total" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0849">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98D_eus-gaap--AccretionExpense_pn3n3_uUSD_c20240101__20240331_zKhsHooK5k51" title="Total" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:AccretionExpense" contextRef="From2024-01-012024-03-31" id="Fact000851" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,016</ix:nonFraction></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_980_eus-gaap--AccretionExpense_pn3n3_dxL_uUSD_c20240701__20250331_zpeoJVFRV8G9" title="Total::XDX::43" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0853">43</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--AccretionExpense_pn3n3_uUSD_c20230701__20240331_zJh9qkOXWd1e" title="Total" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:AccretionExpense" contextRef="From2023-07-012024-03-31" id="Fact000855" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,267</ix:nonFraction></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A2_zXFsLpoPpwxj" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">April
    2024 Notes</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
April 12, 2024, the Company issued and sold to Yorkville and Lind Global Fund II LP (&#8220;Lind II&#8221;, and together with
Yorkville, the &#8220;April 2024 Purchasers&#8221;) $<span id="xdx_900_eus-gaap--DebtInstrumentRepaidPrincipal_pn6n6_c20240410__20240412__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zWZ96uDJ1LNd" title="Aggregate principal amount"><ix:nonFraction name="us-gaap:DebtInstrumentRepaidPrincipal" contextRef="From2024-04-102024-04-12_us-gaap_UnsecuredDebtMember" id="Fact000857" format="ixt:numdotdecimal" decimals="-6" scale="6" unitRef="USD">8.0</ix:nonFraction></span> million aggregate principal amount of unsecured notes (the &#8220;April
2024 Notes&#8221;), pursuant to a securities purchase agreement, dated April 11, 2024 (the &#8220;April 2024 Purchase Agreement&#8221;),
between the Company and each of the April 2024 Purchasers. The Company also issued to the April 2024 Purchasers, in proportion
to the aggregate principal amount of April 2024 Notes issued to each April 2024 Purchaser, Warrants (the &#8220;April 2024 Warrants&#8221;)
to purchase up to <span id="xdx_901_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240410__20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zzCYJJXWhqwh" title="Number of shares"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" contextRef="From2024-04-102024-04-12_custom_PurchaseAgreementMember" id="Fact000859" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">615,385</ix:nonFraction></span> Common Shares, which are equal to <span id="xdx_901_eus-gaap--InvestmentInterestRate_iI_pid_dp_uPure_c20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zWHR3oVJuUC6" title="Number of shares"><ix:nonFraction name="us-gaap:InvestmentInterestRate" contextRef="AsOf2024-04-12_custom_PurchaseAgreementMember" id="Fact000861" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% of the aggregate principal amount of April 2024 Notes issued to
the April 2024 Purchasers divided by the exercise price of $3.25, subject to any adjustment to give effect to any stock dividend,
stock split or recapitalization.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000863" name="us-gaap:ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock"><p id="xdx_897_eus-gaap--ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_znT8pIrL4lxj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B5_zNm5iYNaqKoe">The
changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Notes:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Balance as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--FairValueHedgeAssetsAtFairValue_iS_pn3n3_uUSD_c20240701__20250331_zf8QPA9juSu8" title="Fair value at June 30, 2024" style="width: 15%; text-align: right"><ix:nonFraction name="us-gaap:FairValueHedgeAssetsAtFairValue" contextRef="AsOf2024-06-30" id="Fact000865" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7,089</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in">Principal payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--DebtInstrumentPeriodicPayment_iN_pn3n3_di_uUSD_c20240701__20250331_zWFDZCj70qz5" title="Principal payments" style="text-align: right">(<ix:nonFraction name="us-gaap:DebtInstrumentPeriodicPayment" contextRef="From2024-07-01to2025-03-31" id="Fact000867" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7,129</ix:nonFraction></td><td style="text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_ecustom--ChangeInFairValue_pn3n3_uUSD_c20240701__20250331_zldSClW4I4pe" title="Change in fair value" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="niobf:ChangeInFairValue" contextRef="From2024-07-01to2025-03-31" id="Fact000869" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">40</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Balance as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_eus-gaap--FairValueHedgeAssetsAtFairValue_iE_pn3n3_uUSD_c20240701__20250331_zyIzKAw3DEWd" title="Fair value at December 31, 2024" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0871">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8AD_zibvth5PIxxh" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000873" name="us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock"><p id="xdx_89D_eus-gaap--ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_zbgwrANzj9Va" style="text-indent: 40pt; margin-top: 0; margin-bottom: 0"><span id="xdx_8BD_z6jYoWuBwGo8" style="display: none; visibility: hidden">Schedule of change in the April 2024 Warrant liability</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Warrant Liability:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--OtherLiabilitiesFairValueDisclosure_iS_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zsCH2arTUxMd" title="Fair value at June 30, 2024" style="width: 15%; text-align: right"><ix:nonFraction name="us-gaap:OtherLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30_custom_EarnoutMember" id="Fact000875" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">298</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--FairValueAdjustmentOfWarrants_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zyeEZlSJ5WZ8" title="Change in fair value" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:FairValueAdjustmentOfWarrants" contextRef="From2024-07-012025-03-31_custom_EarnoutMember" id="Fact000877" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">42</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iE_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZDMsiVhYY98" title="Fair value at December 31, 2024" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:OtherLiabilitiesFairValueDisclosure" contextRef="AsOf2025-03-31_custom_EarnoutMember" id="Fact000879" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">340</ix:nonFraction></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A8_zouYU61WYF3j" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
September 4, 2024 and October 3, 2024, NioCorp entered into (i) consents and waivers (the &#8220;2024 Yorkville
Consents&#8221;) to the April 2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement and (ii)
consents and waivers (together with the 2024 Yorkville Consents, the &#8220;2024 Note Consents&#8221;) to the April 2024
Notes issued and sold to Lind II pursuant to the April 2024 Purchase Agreement. The 2024 Note Consents, among other things,
extended and deferred certain monthly payments and extended the maturity of the April 2024 Notes until January 31, 2025. On
January 3, 2025, the Company entered into a consent and waiver (the &#8220;January Yorkville Consent&#8221;) to the April
2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement. The January Yorkville Consent, among
other things, deferred the due date for the amounts
that would otherwise have been due to Yorkville on January 1, 2025 to the maturity date and extended the maturity date to February
17, 2025, and prospectively waived any term of the April 2024 Notes that would otherwise be triggered upon a failure of the Company
to pay to Yorkville the remainder of the amount due on January 1, 2025.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span style="font: 10pt Times New Roman, Times, Serif">All
remaining amounts due to Lind II ($176) and Yorkville ($1,000) under the April 2024 Notes were repaid on January 6, 2025, and
February 7, 2025, respectively.</span></span></p>

</ix:nonNumeric><p id="xdx_81C_zcBlGQ9FOMZd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

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<p style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p>

<p style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p>






<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000881" name="niobf:ScheduleOfClassBCommonStockOfECRCTextBlock"><p id="xdx_800_ecustom--ScheduleOfClassBCommonStockOfECRCTextBlock_zqwVt2mLWRf4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_828_ziW6jIGTKPl2">CLASS
    B COMMON STOCK OF ECRC</span></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
shares of Class B common stock of ECRC, an indirect, majority-owned subsidiary of NioCorp formerly known as GX Acquisition Corp.
II (&#8220;GXII&#8221;), include rights under which the holders may exchange such shares into Common Shares. Certain of such shares
were vested as of the Closing (as defined below) and are exchangeable at any time, from time to time, until the tenth anniversary
of the Closing Date (as defined below) (the &#8220;Vested Shares&#8221;) and certain of such shares are subject to certain vesting
conditions (the &#8220;Earnout Shares&#8221;).</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Earnout
Shares</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000883" name="niobf:ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock"><p id="xdx_890_ecustom--ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_zgJJ5Nnde2Pk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8BC_z4gNwmGe0o78">The
Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td>
    <td style="text-align: justify"/><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">March 31, <br/>2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">June 30, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 1%">&#160;</td>
    <td style="width: 33%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_989_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250531__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zW7oNfbvoMB" title="Closing common share price" style="width: 12%; text-align: center">$<ix:nonFraction name="us-gaap:SharePrice" contextRef="AsOf2025-05-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" id="Fact000885" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.97</ix:nonFraction></td><td style="width: 1%">&#160;</td>
    <td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zBOa88lv04Dk" title="Closing common share price" style="width: 12%; text-align: center">$<ix:nonFraction name="us-gaap:SharePrice" contextRef="AsOf2024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" id="Fact000887" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.73</ix:nonFraction></td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Term (expiry)</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_906_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z7TXtWEBmSS" title="Term (expiry)"><ix:nonNumeric contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" format="ixt:datemonthdayyearen" id="Fact000889" name="niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2">March 17, 2033</ix:nonNumeric></span></td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_90E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_znu6OAxdpjnf" title="Term (expiry)"><ix:nonNumeric contextRef="From2023-07-012024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" format="ixt:datemonthdayyearen" id="Fact000891" name="niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2">March 17, 2033</ix:nonNumeric></span></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td>
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z3YQzsdRJoY" title="Implied volatility of public warrants" style="text-align: center"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" id="Fact000893" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">66.0</ix:nonFraction>%</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zaSqn38L3mjc" title="Risk-free rate" style="text-align: center"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" id="Fact000897" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">4.13</ix:nonFraction>%</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zNRqOxhsC6sa" title="Risk-free rate" style="text-align: center"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" contextRef="From2023-07-012024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember" id="Fact000899" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">4.35</ix:nonFraction>%</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8AC_zdzPlrlejPib" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000901" name="niobf:ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock"><p id="xdx_895_ecustom--ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_zTwPDsKCUG51" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B7_z5bAAahTvpJ8">The
following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period
ended March 31, 2025</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 70%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 52%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--ServicingLiabilityAtFairValueAmount_iS_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z8wXaXijv4Ti" title="Fair value at June 30, 2024" style="width: 15%; text-align: right"><ix:nonFraction name="us-gaap:ServicingLiabilityAtFairValueAmount" contextRef="AsOf2024-06-30_custom_EarnoutMember" id="Fact000903" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,817</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ServicingLiabilityAtFairValueAdditions_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zEIYHzjr7jT2" title="Change in fair value" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:ServicingLiabilityAtFairValueAdditions" contextRef="From2024-07-012025-03-31_custom_EarnoutMember" id="Fact000905" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">510</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98A_eus-gaap--ServicingLiabilityAtFairValueAmount_iE_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZ9KIE2jLI7l" title="Fair value at December 31, 2024" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:ServicingLiabilityAtFairValueAmount" contextRef="AsOf2025-03-31_custom_EarnoutMember" id="Fact000907" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,327</ix:nonFraction></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A4_zdtxkDm9rdvj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Vested
Shares</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
December 12, 2024, and December 20, 2024, <span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241212_zR3Hq2yoZZa9"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" contextRef="AsOf2024-12-12" id="Fact000908" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">25,000</ix:nonFraction></span> Vested Shares and <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241220_zlJ2nyXACeeh"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" contextRef="AsOf2024-12-20" id="Fact000909" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">323,085</ix:nonFraction></span> Vested Shares, respectively, were exchanged for an
equivalent number of Common Shares. This exchange resulted in a change in the Company&#8217;s ownership interest in ECRC and was
accounted for as an equity transaction in accordance with Accounting Standards Codification (&#8220;ASC&#8221;) 810-10-45-23,
with no gain or loss recognized. Accordingly, the carrying amount of the noncontrolling interest was adjusted to reflect the change
in the Company&#8217;s ownership interest with a corresponding offset booked to equity. As of March 31, 2025, <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_pid_dxL_uShares_c20250331_zd0WBXzaDsFd" title="::XDX::3073000"><span style="-sec-ix-hidden: xdx2ixbrl0910">3,934,031</span></span> Vested
Shares remained outstanding.</span></p>

</ix:nonNumeric><p id="xdx_811_zhfvLHpE6Fbd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000912" name="us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock"><p id="xdx_808_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zyuKQJalIpb2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_826_zsAgfYTYq5Z7">COMMON
    SHARES</span></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Issuance</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241105_gIFCOWORRFITN-VYYGH_zdLXqooIcu0l"><ix:nonNumeric contextRef="From2024-11-012024-11-05" continuedAt="ConU000914-01" id="Fact000914" name="us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees">On
November 5, 2024, the Company closed an underwritten public offering (the &#8220;November 2024 Registered Offering&#8221;), pursuant
to the underwriting agreement, dated November 3, 2024 (the &#8220;Underwriting Agreement&#8221;), with Maxim Group LLC, as underwriter
(&#8220;Maxim&#8221;), which consisted of 1,592,356 Common Shares, 1,672,090 Warrants (the &#8220;Series A Public Warrants&#8221;)
to purchase up to an additional 1,672,090 Common Shares and 836,045 Warrants (the &#8220;Series B Public Warrants&#8221; and,
together with the Series A Public Warrants, the &#8220;November Public Warrants&#8221;) to purchase up to an additional 836,045
Common Shares. Each Common Share was sold together with one Series A Public Warrant and one-half of one Series B Public Warrant
at a combined public offering price of $1.57. The gross proceeds from the November 2024 Registered Offering were $2,501</ix:nonNumeric></span> </span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<ix:exclude><!-- Field: Page; Sequence: 6; Value: 6 -->
    <div style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->11<!-- Field: /Sequence --></p></div>
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    <!-- Field: /Page --></ix:exclude>

<ix:exclude><p id="xdx_232_zt1ZQV6nX8dg" style="font: 10pt Times New Roman,serif; margin: 0pt 0"><b>NioCorp Developments Ltd.</b><br/>
<b>Notes to the Condensed Consolidated Financial Statements </b><br/>
<b>March 31, 2025</b></p></ix:exclude>

<ix:exclude><p id="xdx_233_zeaAVN2M1xhk" style="border-bottom: Black 1pt solid; font: 10pt Times New Roman,serif; margin: 0pt 0">(expressed in thousands of U.S. dollars,
except share and per share data or as otherwise stated) (unaudited)</p></ix:exclude>

<ix:exclude><p id="xdx_23D_zfeErdDuWsS4" style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;&#160;</p></ix:exclude>



<div id="xdx_C05_gIFCOWORRFITN-VYYGH_z1ZLivWGmGJh"><ix:continuation id="ConU000914-01"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">before
deducting underwriting discounts and offering expenses. The November Public Warrants were classified as equity instruments and
accordingly, the net proceeds were allocated based on the relative fair values of the Common Shares and the November Public Warrants
on the date of issuance, with $943 allocated to the fair value of the November Public Warrants and the balance of the proceeds
of $1,558 allocated to Common Shares. The Company incurred total transaction costs related to the November 2024 Registered Offering
$1,226, which were treated as share issuance costs at closing. The Series A Public Warrants have an exercise price of $1.75 per
underlying Common Share, are exercisable immediately, and will expire on November 5, 2026. The Series B Public Warrants have an
exercise price of $2.07 per underlying Common Share, are exercisable beginning six months and one day from the date of issuance
and will expire on November 5, 2029. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day over-allotment
option to purchase (i) 238,853 additional Common Shares and (ii) 358,280 Option Warrants (as defined below) to purchase up to
an aggregate of 358,280 Common Shares. &#8220;Option Warrant&#8221; means one Series A Public Warrant combined with one-half of
one Series B Public Warrant. On November 4, 2024, Maxim partially exercised its over-allotment option to purchase <span id="xdx_906_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesAMember_zDH8iJERs2s7"><ix:nonFraction name="niobf:DebtInstrumentIssuedPrincipalshars" contextRef="From2024-11-012024-11-04_custom_PurchaseAgreementSeriesAMember" id="Fact000918" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">79,734</ix:nonFraction></span> additional
Series A Public Warrants and <span id="xdx_908_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesBMember_zync8a8qmZx5"><ix:nonFraction name="niobf:DebtInstrumentIssuedPrincipalshars" contextRef="From2024-11-012024-11-04_custom_PurchaseAgreementSeriesBMember" id="Fact000919" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">39,867</ix:nonFraction></span> additional Series B Public Warrants, which amounts are included in the amounts discussed above
and were issued at closing of the November 2024 Registered Offering.</span></p></ix:continuation></div>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_909_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241113_zfxNEMy8TMDa"><ix:nonNumeric contextRef="From2024-11-012024-11-13" id="Fact000920" name="us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees">On
November 13, 2024, the Company closed a non-brokered private placement (the &#8220;November 2024 Private Offering&#8221;), pursuant
to binding subscription agreements with certain accredited investors as part of a non-brokered private placement of <span id="xdx_90B_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pid_uShares_c20241101__20241113__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember_zJ2BkoLQdARb" title="Shares issue"><ix:nonFraction name="us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction" contextRef="From2024-11-012024-11-13_us-gaap_PrivatePlacementMember" id="Fact000922" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,199,602</ix:nonFraction></span>
units of the Company (the &#8220;November 2024 Units&#8221;). Each November 2024 Unit consisted of one Common Share, one Warrant
(a &#8220;Series A Private Warrant&#8221;) to purchase one Common Share, and one-half of one Warrant (each whole such Warrant,
a &#8220;Series B Private Warrant&#8221; and, together with the Series A Private Warrants, the &#8220;November Private Warrants&#8221;),
with each Series B Private Warrant entitling the holder thereof to purchase one additional Common Share. Each November 2024 Unit
was issued and sold at a price of $1.57. The gross proceeds of the November 2024 Private Offering were approximately $3,500 before
deducting offering expenses. Certain directors and officers of the Company (the &#8220;Insider Investors&#8221;) purchased November
2024 Units at a price of $1.7675 per November 2024 Unit, which price includes $0.1975 per November 2024 Private Warrant and allowed
such directors and officers to participate in the November 2024 Private Offering in accordance with the rules of the Nasdaq Stock
Market LLC (the &#8220;Nasdaq&#8221;). The Series A Private Warrants have an exercise price of $1.75 per underlying Common Share,
are exercisable immediately, and will expire on November 13, 2026. The Series B Private Warrants have an exercise price of $2.07
per underlying Common Share, are exercisable beginning six months and one day from the date of issuance and will expire on November
13, 2029. The Company recorded a non-cash expense of $34 and $110 to other operating expenses and employee related costs, respectively,
representing the excess of fair value of the November 2024 Units over the purchase price paid by Insider Investors.</ix:nonNumeric></span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
upon the Company&#8217;s analysis of the criteria contained in ASC 815, the Company determined that the November Private Warrants
met the definition of a derivative liability, as any warrant exercise that could cause the holder to exceed 19.9% ownership of
NioCorp Common Shares would require shareholder approval. As such, the November Private Warrants were recognized as warrant liabilities
on the consolidated balance sheet and were measured at their issuance date fair value of $<span id="xdx_907_eus-gaap--FairValueOptionChangesInFairValueGainLoss1_pn3n3_c20240701__20250331_z6ysFpM9ikX8" title="Fair value of non operating gain/loss"><ix:nonFraction name="us-gaap:FairValueOptionChangesInFairValueGainLoss1" contextRef="From2024-07-01to2025-03-31" id="Fact000924" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,928</ix:nonFraction></span> and subsequently remeasured at
each reporting period with changes being recorded as a non-operating gain or loss in the consolidated statement of operations
and comprehensive loss. The remaining proceeds of the November 2024 Private Offering of $<span id="xdx_904_eus-gaap--StockIssuedDuringPeriodValueOther_pn3n3_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zwDmXcBo8Dsj" title="Remaining proceeds from private warrants"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodValueOther" contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember" id="Fact000926" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,573</ix:nonFraction></span> were allocated to Common Shares.
The Company incurred total transaction costs related to the November 2024 Private Offering of $<span id="xdx_909_ecustom--RegisteredOffering_iI_pn3n3_c20241130_znsjwmQOpDc6" title="Registered Offering"><ix:nonFraction name="niobf:RegisteredOffering" contextRef="AsOf2024-11-30" id="Fact000928" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">161</ix:nonFraction></span>, of which $<span id="xdx_90E_ecustom--PrivateOffering_iI_pn3n3_c20241130_zYadWwAZKCqa" title="Private Offering"><ix:nonFraction name="niobf:PrivateOffering" contextRef="AsOf2024-11-30" id="Fact000930" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">60</ix:nonFraction></span> was allocated
to the November Private Warrants and was expensed at closing.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
following tables disclose the primary inputs for the Black-Scholes model used in valuing the November Public Warrants and November
Private Warrants, respectively.</span></p>

<ix:exclude><p id="xdx_230_ziJz1PyqUTB3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p></ix:exclude>

<ix:exclude><!-- Field: Page; Sequence: 7; Value: 6 -->
    <div id="xdx_23F_ze3T2z5L8YS7" style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->12<!-- Field: /Sequence --></p></div>
    <div id="xdx_23A_z49pIRxmOjSf" style="page-break-before: always; margin-top: 6pt; margin-bottom: 6pt"><p style="margin: 0pt">&#160;</p></div>
    <!-- Field: /Page --></ix:exclude>


<ix:exclude><p id="xdx_230_z5DGzt0UAfA3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p></ix:exclude>

<ix:exclude><p id="xdx_238_zZVlzfnokzs2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23F_zqddRWbP0rMk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23C_zam4uf1o6g48" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_232_zdUbkHCcofM1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><ix:exclude><div id="xdx_23D_z3tlDecGbZy" style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><div style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></div></ix:exclude><!-- Field: /Rule-Page -->

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000939" name="niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock"><p id="xdx_890_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_zGtP4U5B8ha6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B1_zBWKQ5BXEkZ9" style="display: none; visibility: hidden">Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: center; padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt; text-align: center">&#160;</td>
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<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">November Private Warrants:</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="width: 1%; text-align: left"/><td style="width: 1%; text-align: right"/><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left"/><td style="width: 1%; text-align: right"/><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"/><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"/><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td title="Closing common share price" style="text-align: right"><span id="xdx_90A_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zeYwXGZXTZtk" title="Term (years)::XDX::P4Y6M0D"><span style="-sec-ix-hidden: xdx2ixbrl0961">1.62</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"/><td style="text-align: left"/><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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</table>

</ix:nonNumeric><p id="xdx_8A0_zg9ag51nXsfb" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000973" name="niobf:ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock"><p id="xdx_895_ecustom--ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_z4uzzhxwxmb1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B6_zpz79LdOELRc">The
following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">November Private Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 42%; text-align: justify">Fair value at issuance (November 13, 2024)</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zr8K1NdvbYAe" title="Beginning balance" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="niobf:ChangesInFairValueOfInitialValuation1" contextRef="AsOf2025-03-31_custom_NovemberPrivateWarrantsliabilitiesMember" id="Fact000979" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,187</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8AB_zRP2ru6sYucc" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_906_ecustom--CommonShareDescription_c20250101__20250131_zKFKE2kNFtz9" title="Subsequent event, description"><ix:nonNumeric contextRef="From2025-01-012025-01-31" id="Fact000981" name="niobf:CommonShareDescription">On
January 31, 2025, the Company closed an underwritten registered direct offering (the &#8220;January 2025 Offering&#8221;), pursuant
to an underwriting agreement, dated January 29, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold
2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to 2,577,320 Common Shares (the &#8220;January 2025 Series
A Warrants&#8221;) and 1,288,660 Series B warrants to purchase up to an additional 1,288,660 Common Shares (the &#8220;January
2025 Series B Warrants&#8221; and, together with the January 2025 Series A Warrants, the &#8220;January 2025 Warrants&#8221;).
Each Common Share was sold together with one January 2025 Series A Warrant and one-half of one January 2025 Series B Warrant at
a combined public offering price of $1.94. The gross proceeds from the January 2025 Offering were approximately $5,000 before
deducting underwriting discounts and offering expenses. The January 2025 Warrants were classified as equity instruments and accordingly,
the net proceeds were allocated based on the relative fair values of the Common Shares and the January 2025 Warrants on the date
of issuance, with $2,200 allocated to the fair value of the January 2025 Warrants and the balance of the proceeds of $2,800 allocated
to Common Shares. The Company incurred total transaction costs related to the January 2025 Offering of $799, which were treated
as share issuance costs at closing. The January 2025 Series A Warrants have an exercise price of $1.98 per underlying Common Share,
are exercisable immediately, and will expire on August 2, 2027. The January 2025 Series B Warrants have an exercise price of $2.05
per underlying Common Share, are exercisable immediately, and will expire on January 31, 2029</ix:nonNumeric></span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact000983" name="niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock"><p id="xdx_897_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_zOPFjWNTFfx5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8BC_zEpnDNRlsPo5">The
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series A Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 34%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUK7ziTDjjDh" title="Closing common share price" style="width: 10%; text-align: right"><ix:nonFraction name="us-gaap:SharePrice" contextRef="AsOf2025-01-31_custom_SeriesAPublicWarrantsMember" id="Fact000985" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.25</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zrN5Qt4p0dab" title="Closing common share price" style="width: 10%; text-align: right"><ix:nonFraction name="us-gaap:SharePrice" contextRef="AsOf2025-01-31_custom_SeriesBPublicWarrantsMember" id="Fact000987" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.25</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUb1QydvvX2d" title="Term (years)::XDX::P4Y6M0D"><span style="-sec-ix-hidden: xdx2ixbrl0989">2.5</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zmqiwcCaHNI6" title="Term (years)::XDX::P4Y6M0D"><span style="-sec-ix-hidden: xdx2ixbrl0991">4.0</span></span></td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zRnk9AZlDUq2" title="Historic equity volatility"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" contextRef="From2024-07-012025-01-31_custom_SeriesAPublicWarrantsMember" id="Fact000993" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">73.18</ix:nonFraction></span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zKo75ks1eYp4" title="Historic equity volatility"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" contextRef="From2024-07-012025-01-31_custom_SeriesBPublicWarrantsMember" id="Fact000995" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">73.36</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zYL97Ypuj8Yb" title="Risk-free rate"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" contextRef="From2024-07-012025-01-31_custom_SeriesAPublicWarrantsMember" id="Fact000997" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">4.23</ix:nonFraction></span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z4UKwilL8PJ9" title="Risk-free rate"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" contextRef="From2024-07-012025-01-31_custom_SeriesBPublicWarrantsMember" id="Fact000999" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">4.31</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
</table>
</ix:nonNumeric><p id="xdx_8A0_z3qtLlHDdbdg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<ix:exclude><!-- Field: Page; Sequence: 1; Options: NewSection; Value: 13 -->
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<ix:exclude><p id="xdx_231_z8E2i5XhDwM8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_239_zO5Jlyl82dek" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_230_zmIHScedTzRd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_231_zRXETyXp2k71" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><ix:exclude><div id="xdx_23E_zPT5n4nhuBKi" style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></ix:exclude></div><!-- Field: /Rule-Page -->








<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of March 31, 2025, the Company has access to up to $56,157 in net proceeds from the Standby Equity Purchase Agreement, dated January
26, 2023 (the &#8220;Yorkville Equity Facility Financing Agreement&#8221;), between the Company and YA II PN, Ltd., an investment
fund managed by Yorkville Advisors Global, LP (&#8220;Yorkville&#8221;), through April 1, 2026. <span id="xdx_8BA_z6hPXRJJPN99">The Company issued the following
Common Shares under the Yorkville Equity Facility Financing Agreement during the three and nine month periods presented below</span>:</span></p>

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<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Three Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Nine Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 44%; text-align: justify">Common Shares issued</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>

</ix:nonNumeric><p id="xdx_8A5_zvV3k0lN4yL2" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loss
on issuance represents a non-cash amount equal to the difference between the proceeds received and the fair value of the Common
Shares issued based on the Nasdaq closing price per Common Share on the issuance date and is recorded in other operating expenses
in the condensed consolidated statement of operations and comprehensive loss.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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</table>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001040" name="niobf:ScheduleOfStockOptionRollForwardTableTextBlock"><p id="xdx_89F_ecustom--ScheduleOfStockOptionRollForwardTableTextBlock_zErRuunJX81b" style="margin-top: 0; margin-bottom: 0"><span id="xdx_8BF_zjCXsQ7AAX0h" style="display: none; visibility: hidden">Schedule Of Stock Option</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercised</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 1pt; text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cancelled/expired</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">&#160;</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-bottom: Black 2pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 2pt solid; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20240701__20250331_zdJib6ZBglf9" title="Weighted average remaining contractual life"><ix:nonNumeric contextRef="From2024-07-01to2025-03-31" format="ixt-sec:duryear" id="Fact001064" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">3.6</ix:nonNumeric></span> Years</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A2_zxyE3d258on9" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
February 24, 2025, the Company granted 10,000 Options with a fair value price of $1.13 per Option, based on a Black-Scholes model
with a risk-free rate of 4.28%, average share price volatility of 73.3%, and a three-year expected option life. These Options
were 50% vested on the issuance date with the remaining portion vesting over one year. The Company expensed $6 in the condensed
consolidated statement of operations associated with the grant and the remaining balance will be amortized over the vesting period.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td id="xdx_981_ecustom--ClassOfWarrantOrRightExercisePriceExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zRBud6hDklJj" title="Exercised" style="text-align: right"><ix:nonFraction name="niobf:ClassOfWarrantOrRightExercisePriceExercised" contextRef="From2024-07-012025-03-31_us-gaap_WarrantMember" id="Fact001083" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1.75</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceExpired_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJZW14Ui7P5b" title="Expired" style="text-align: right"><ix:nonFraction name="niobf:ClassOfWarrantOrRightExercisePriceExpired" contextRef="From2024-07-012025-03-31_us-gaap_WarrantMember" id="Fact001087" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">9.44</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
</table>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt; text-align: left; width: 73%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Balance, March 31, 2025</span></td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%">&#160;</td><td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iE_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zq84RogyWwXg" title="Ending balance" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_us-gaap_WarrantMember" id="Fact001089" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">29,520,695</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%">$</td><td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iE_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeU0ShjNHoua" title="Ending balance" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_us-gaap_WarrantMember" id="Fact001091" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">7.12</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td></tr>
</table>
</ix:nonNumeric><p id="xdx_8AA_znMANA49xPC1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>



<p style="margin-top: 0; margin-bottom: 0"></p>

<ix:exclude><!-- Field: Page; Sequence: 2; Value: 13 -->
    <div style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence -->&#160;</p></div>
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    <!-- Field: /Page --></ix:exclude>
<ix:exclude><p id="xdx_233_zdYTXBqfutNd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_235_ze1lkyJFJtH5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_236_zs0ICimLhGJj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23A_zCh2ES5ELI15" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><ix:exclude><div id="xdx_23C_zaCEEFhmqKb5" style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></ix:exclude></div><!-- Field: /Rule-Page -->






<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001098" name="niobf:ScheduleOfOutstandingExercisableWarrantsTableTextBlock"><p id="xdx_89B_ecustom--ScheduleOfOutstandingExercisableWarrantsTableTextBlock_zEslwoVmmbKl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8B1_zwgc0kxq5yOf">As
of March 31, 2025, the Company had outstanding exercisable Warrants, as follows</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 52%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: center">Number</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right; padding-bottom: 1pt">Exercise Price</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">Expiry Date</td>
    <td style="border-bottom: Black 1pt solid">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zAaRkT6OD0Eb" title="Expiry date" style="width: 21%; text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice4.60Member" format="ixt:datemonthdayyearen" id="Fact001104" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">September 1, 2025</ix:nonNumeric></td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zml2rz96qtza" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice2.20Member" id="Fact001114" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.20</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_984_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zxGrrr2DcCMc" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice2.20Member" format="ixt:datemonthdayyearen" id="Fact001116" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">June 24, 2026</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_z5NsXueGgbsh" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice1.75Member" id="Fact001120" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.75</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zV2rhTaM7n9h" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice1.75Member" format="ixt:datemonthdayyearen" id="Fact001122" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">November 5, 2026</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_98B_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_zudt0nodwGB3" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice01.75Member" id="Fact001124" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,199,602</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z6l8uGOopFq6" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice01.75Member" id="Fact001126" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.75</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_983_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z4PusRkWWnN6" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice01.75Member" format="ixt:datemonthdayyearen" id="Fact001128" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">November 13, 2026</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: right"><span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zzl0d8tJOMF8" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice3.25Member" id="Fact001132" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.25</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zOx5ZJgy35Wi" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice3.25Member" format="ixt:datemonthdayyearen" id="Fact001134" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">April 12, 2027</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_987_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zDWGjR8gfwS2" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice1.98Member" id="Fact001136" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,577,320</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zBmEU13FwUD6" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice1.98Member" id="Fact001138" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.98</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zKOX4YEAXvyj" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice1.98Member" format="ixt:datemonthdayyearen" id="Fact001140" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">August 2, 2027</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98D_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zNEWLgqbaKck" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice11.50Member" id="Fact001142" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">15,666,626</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_ztgMmbLE4Eia" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice11.50Member" id="Fact001144" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">11.50</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zTN5WawxZ2s9" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice11.50Member" format="ixt:datemonthdayyearen" id="Fact001146" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">March 17, 2028</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_980_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zO2kvjZ4nmri" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice2.31Member" id="Fact001148" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,816,742</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_900_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zXNZl1yaYAGj" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice2.31Member" id="Fact001150" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.31</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zm2RrfF7bSDb" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice2.31Member" format="ixt:datemonthdayyearen" id="Fact001152" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">September 17, 2028</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z82PxVQds6N" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice2.05Member" id="Fact001154" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1,288,660</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_zZch4Rvarty8" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice2.05Member" id="Fact001156" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.05</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z7Lu80CtrLGb" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice2.05Member" format="ixt:datemonthdayyearen" id="Fact001158" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">January 31, 2029</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zqMh37e14hm4" title="Number of share outstanding" style="text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice2.07Member" id="Fact001160" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">836,045</ix:nonFraction></td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_z2wbhm6eoYe3" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice2.07Member" id="Fact001162" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.07</ix:nonFraction></span></td><td>&#160;</td>
    <td id="xdx_987_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zPcqYZ8eKPg6" title="Expiry date" style="text-align: right"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice2.07Member" format="ixt:datemonthdayyearen" id="Fact001164" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">November 5, 2029</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zuEQJ8HWYusk" title="Number of share outstanding" style="border-bottom: Black 1pt solid; padding-bottom: 1pt; text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31_custom_ExercisePrice02.07Member" id="Fact001166" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1,099,793</ix:nonFraction></td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: right"><span id="xdx_906_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zMAcShPqlFr1" title="Exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2025-03-31_custom_ExercisePrice02.07Member" id="Fact001168" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.07</ix:nonFraction></span></td><td style="padding-bottom: 1pt">&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zykADMu1lymb" title="Expiry date" style="text-align: right; padding-bottom: 1pt"><ix:nonNumeric contextRef="AsOf2025-03-31_custom_ExercisePrice02.07Member" format="ixt:datemonthdayyearen" id="Fact001170" name="us-gaap:WarrantsAndRightsOutstandingMaturityDate">November 13, 2029</ix:nonNumeric></td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331_znkjsnzPdgT9" title="Number of share outstanding" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightOutstanding" contextRef="AsOf2025-03-31" id="Fact001172" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">29,520,695</ix:nonFraction></td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="text-align: right; padding-bottom: 1pt">&#160;</td>
    <td>&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A9_zxAGv8sXdYi9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><i>Private
Warrants</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 17, 2023 (the &#8220;Closing Date&#8221;), the Company closed a series of transactions (the &#8220;GXII Transaction&#8221;)
pursuant to the Business Combination Agreement, dated as of September 25, 2022, by and among the Company, GXII, and Big Red Merger
Sub Ltd. In connection with the closing of the GXII Transaction (the &#8220;Closing&#8221;), the Company assumed GXII&#8217;s
obligations under the agreement governing the GXII share purchase warrants (the &#8220;GXII Warrants&#8221;), as amended by an
assignment, assumption and amendment agreement (the &#8220;NioCorp Assumed Warrant Agreement&#8221;), and issued an aggregate
of <span id="xdx_903_ecustom--WarrantsTradedPriorToClosing_iI_pid_uShares_c20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zXL8pyAsWmt5" title="Warrants traded prior to the closing"><ix:nonFraction name="niobf:WarrantsTradedPriorToClosing" contextRef="AsOf2025-03-31_us-gaap_WarrantMember" id="Fact001174" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">15,666,626</ix:nonFraction></span> Warrants (the &#8220;NioCorp Assumed Warrants&#8221;). The Company issued (a) <span id="xdx_909_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeZTzsIIGWpg" title="Warrants traded prior to the closing"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesIssuedForServices" contextRef="From2024-07-012025-03-31_us-gaap_WarrantMember" id="Fact001176" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">9,999,959</ix:nonFraction></span> public NioCorp Assumed Warrants
(the &#8220;Public Warrants&#8221;) in respect of the GXII Warrants that were publicly traded prior to the Closing and (b) <span id="xdx_902_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--TransactionTypeAxis__custom--GXIIPrivateWarrantsMember_z5ekLfVLSG82" title="Warrants traded prior to the closing"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesIssuedForServices" contextRef="From2024-07-012025-03-31_custom_GXIIPrivateWarrantsMember" id="Fact001178" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">5,666,667</ix:nonFraction></span>
NioCorp Assumed Warrants (the &#8220;Private Warrants&#8221;) to GX Sponsor II LLC (the &#8220;Sponsor&#8221;).</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_906_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zDdiLJwUCQJ9" title="Description of warrants"><ix:nonNumeric contextRef="From2024-07-012025-03-31_us-gaap_WarrantMember" id="Fact001180" name="us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees">Each
Private Warrant entitles the holder to the right to purchase 1.11829212 Common Shares at an exercise price of $11.50 per 1.11829212
Common Shares (subject to adjustments for stock splits, stock dividends, reorganizations, recapitalizations and the like).</ix:nonNumeric></span> No
fractional shares will be issued upon exercise of any Private Warrants, and fractional shares that would otherwise be due to the
exercising holder will be rounded down to the nearest whole Common Share. In no event will the Company be required to net cash
settle any Private Warrant.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Private Warrants: (i) will be exercisable either for cash or on a cashless basis at the holder&#8217;s option and (ii) will not
be redeemable by the Company, in either case as long as the Private Warrants are held by the Sponsor, its members or any of their
permitted transferees (as prescribed in the NioCorp Assumed Warrant Agreement). In accordance with the NioCorp Assumed Warrant
Agreement, any Private Warrants that are held by someone other than the Sponsor, its members or any of their permitted transferees
are treated as Public Warrants.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001182" name="us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock"><p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_zO5nlUfr32E6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
Company classifies the Private Warrants as Level 2 instruments under the fair value hierarchy as inputs into our pricing model
are based on observable data points. <span id="xdx_8B7_z5BRPxiunwme">The following observable data points were used in calculating the fair value of the Private
Warrants using a Black-Scholes pricing model</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: justify">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">March 31,&#160; <br/>2025</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">June 30,&#160; <br/>2024</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 56%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zmmzHg7eLnha" title="Stock price on valuation date" style="width: 10%; text-align: right">$<ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" contextRef="AsOf2025-03-31_us-gaap_FairValueInputsLevel2Member" id="Fact001184" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.97</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zfQSHvU6uVja" title="Stock price on valuation date" style="width: 10%; text-align: right">$<ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001186" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.73</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zRaF7BcL41Q6" title="Implied volatility of public warrants"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" contextRef="From2024-07-012025-03-31_us-gaap_FairValueInputsLevel2Member" id="Fact001188" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">64.3</ix:nonFraction></span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zv8iE6GEy7Uh" title="Implied volatility of public warrants"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001190" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">69.0</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Risk free rate</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z4BjPftoE7ld" title="Risk free rate"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" contextRef="From2024-07-012025-03-31_us-gaap_FairValueInputsLevel2Member" id="Fact001192" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">3.88</ix:nonFraction></span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zMUi0rOLnKcb" title="Risk free rate"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001194" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">4.45</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Dividend yield</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zkGZRysuk95g" title="Dividend yield"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" contextRef="From2024-07-012025-03-31_us-gaap_FairValueInputsLevel2Member" id="Fact001196" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0</ix:nonFraction></span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zWwVcgrZs0uj" title="Dividend yield"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001198" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Expected warrant life in years</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zon97XCmEO91" title="Expected warrant life in years"><ix:nonNumeric contextRef="From2024-07-012025-03-31_us-gaap_FairValueInputsLevel2Member" format="ixt-sec:duryear" id="Fact001200" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">3.0</ix:nonNumeric></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zKgRfAqfX6w" title="Expected warrant life in years"><ix:nonNumeric contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member" format="ixt-sec:duryear" id="Fact001202" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">3.7</ix:nonNumeric></span></td><td style="text-align: left">&#160;</td></tr>
</table>
</ix:nonNumeric><p id="xdx_8A6_zo1qVvX9mHj5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:exclude><!-- Field: Page; Sequence: 3; Value: 13 -->
    <div style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->15<!-- Field: /Sequence -->&#160;</p></div>
    <div style="page-break-before: always; margin-top: 6pt; margin-bottom: 6pt"><p style="margin: 0pt">&#160;</p></div>
    <!-- Field: /Page --></ix:exclude>

<ix:exclude><p id="xdx_23F_zkKdaFhfKHYb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_237_zBbAZqS2m9Y9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23C_ztVW1uV5bPKk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23B_zPxejbCeFHi8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><ix:exclude><div id="xdx_23B_z2HXOp9ctjF2" style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></ix:exclude></div><!-- Field: /Rule-Page -->

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>


<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001209" name="niobf:ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock"><p id="xdx_894_ecustom--ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_zKZgpL8S3EN1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B1_zuV5sCPTXEzk">The
change in the Private Warrants liability is presented below</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_985_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zpdG3eXCbQJ6" title="Beginning balance" style="width: 15%; text-align: right"><ix:nonFraction name="niobf:ChangesInFairValueOfInitialValuation1" contextRef="AsOf2024-06-30_us-gaap_NoteWarrantMember" id="Fact001211" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,353</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zycPTplq6B2" title="Change in fair value" style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs" contextRef="From2024-07-012025-03-31_us-gaap_NoteWarrantMember" id="Fact001213" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">680</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt">Fair value as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98E_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zQTpM9YuPcB9" title="Ending balance" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="niobf:ChangesInFairValueOfInitialValuation1" contextRef="AsOf2025-03-31_us-gaap_NoteWarrantMember" id="Fact001215" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">673</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A6_zY1r2Kmj1x1c" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Contingent
Consent Warrants</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90C_eus-gaap--BusinessCombinationContingentConsiderationArrangementsDescription_c20240701__20250331__us-gaap--BusinessAcquisitionAxis__custom--LindGlobalAssetManagementThreeLLCMember_zcipujrvKkUi" title="Contingent consideration description"><ix:nonNumeric contextRef="From2024-07-012025-03-31_custom_LindGlobalAssetManagementThreeLLCMember" id="Fact001217" name="us-gaap:BusinessCombinationContingentConsiderationArrangementsDescription">As
consideration for entering into the previously publicly disclosed Waiver and Consent Agreement, dated September 25, 2022 (the
&#8220;Lind Consent&#8221;), between the Company and Lind Global Asset Management III, LLC (&#8220;Lind III&#8221;), Lind III
received, amongst other things, the right to receive additional Warrants (the &#8220;Contingent Consent Warrants&#8221;) if on
September 17, 2024, the closing trading price of the Common Shares on the Toronto Stock Exchange or such other stock exchange
on which such shares may then be listed, is less than C$10.00, subject to adjustments. The number of Contingent Consent Warrants
to be issued, if any, is based on the Canadian dollar equivalent (based on the then current Canadian to U.S. dollar exchange rate
as reported by Bloomberg, L.P.) of $5,000 divided by the five-day volume weighted average price of the Common Shares on the date
of issuance</ix:nonNumeric></span>. Further, the number of Contingent Consent Warrants issued will be proportionately adjusted based on the percentage
of Warrants currently held by Lind III that are exercised, if any, prior to the issuance of any Contingent Consent Warrants.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
September 17, 2024, the Company&#8217;s Common Share price was below the threshold price set forth in the Lind Consent, and accordingly,
the Company issued <span id="xdx_90D_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240915__20240917_zIESjBFGGSGa" title="Stock issued, shares"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" contextRef="From2024-09-152024-09-17" id="Fact001219" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,816,742</ix:nonFraction></span> Contingent Consent Warrants to Lind III. Each Contingent Consent Warrant is exercisable for one Common
Share at an exercise price of $<span id="xdx_90F_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20240917__us-gaap--TransactionTypeAxis__custom--LindConsentWarrantIssuanceMember_zQXRsdoznIri" title="Common share exercise price, per share"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2024-09-17_custom_LindConsentWarrantIssuanceMember" id="Fact001221" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.308</ix:nonFraction></span> and may be exercised at any time prior to their expiration on September 17, 2028. The number
of Contingent Consent Warrants issued was based on $<span id="xdx_90A_eus-gaap--StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_c20240915__20240917__us-gaap--TransactionTypeAxis__custom--LindConsentWarrantIssuanceMember_zGDS1wFMRVi"><ix:nonFraction name="us-gaap:StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" contextRef="From2024-09-152024-09-17_custom_LindConsentWarrantIssuanceMember" id="Fact001222" format="ixt:numdotdecimal" decimals="0" unitRef="USD">5,000</ix:nonFraction></span> divided by the five-day volume weighted average price of the Common
Shares on September 16, 2024. The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation
with the following inputs:</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001224" name="us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock"><p id="xdx_89A_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_ztLRO3RxnkG9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BA_zvsP6orW6hW8" style="display: none; visibility: hidden">The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:</span></span></p>


<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 50%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">September 17, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 39%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zOeDnDhNQPGi" title="Closing common share price" style="width: 10%; text-align: center">$<ix:nonFraction name="us-gaap:SharePrice" contextRef="AsOf2024-09-17_us-gaap_MeasurementInputExercisePriceMember_custom_BlackScholesValuationMember" id="Fact001226" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">1.74</ix:nonFraction></td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>

</ix:nonNumeric><p id="xdx_8A3_zwhhEZ7n5uQj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company recognized a gain of $103 on the issuance of the Contingent Consent Warrants. This gain was recorded as a part of other
gains in the condensed consolidated statements of operations and comprehensive loss.</span></p>

</ix:nonNumeric><p id="xdx_817_zfADJcn1vKUb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001234" name="us-gaap:RelatedPartyTransactionsDisclosureTextBlock"><p id="xdx_80F_eus-gaap--RelatedPartyTransactionsDisclosureTextBlock_z8zTnDOhSIvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">9.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_821_zXRqhK4Hlt71">RELATED
    PARTY TRANSACTIONS</span></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">On
September 11, 2024, the Company and Mark Smith, Chief Executive Officer, President and Executive Chairman of NioCorp, entered
into a loan agreement (the &#8220;Smith Loan Agreement&#8221;), which provides for a $<span id="xdx_90F_eus-gaap--LongTermLineOfCredit_iI_pn3n3_c20240911__us-gaap--TypeOfArrangementAxis__custom--NonRevolvingCreditFacilityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_z7DP7FbKXlLi"><ix:nonFraction name="us-gaap:LongTermLineOfCredit" contextRef="AsOf2024-09-11_custom_NonRevolvingCreditFacilityAgreementMember_srt_ChiefExecutiveOfficerMember" id="Fact001235" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2,000</ix:nonFraction></span> non-revolving, multi-draw credit facility
(the &#8220;Smith Loan&#8221;). The Smith Loan has an interest rate of <span id="xdx_90F_eus-gaap--RelatedPartyTransactionRate_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_zCTV9c4FdCZc"><ix:nonFraction name="us-gaap:RelatedPartyTransactionRate" contextRef="From2024-09-022024-09-11_custom_GeneralSecurityAgreementMember_srt_ChiefExecutiveOfficerMember" id="Fact001236" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">10</ix:nonFraction></span>% per annum, calculated monthly in arrears, through the
date of repayment of the Smith Loan. The Company can pre-pay the Smith Loan at any time without notice and without penalty, but
any amount of principal or interest repaid by the Company prior to the earlier of the date of expiration of the Smith Loan Agreement
on June 30, 2025 and the occurrence of an event of default under the Smith Loan Agreement will be subject to an early payment
fee of <span id="xdx_906_ecustom--LineOfCreditFacilityEstablishmentFee_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_ziSmpq6SjsDb"><ix:nonFraction name="niobf:LineOfCreditFacilityEstablishmentFee" contextRef="From2024-09-022024-09-11_custom_GeneralSecurityAgreementMember_srt_ChiefExecutiveOfficerMember" id="Fact001237" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">2.5</ix:nonFraction></span>% of the value of any such payment. The Smith Loan is secured by all of the Company&#8217;s assets pursuant to a general
security agreement between the Company and Mr. Smith dated September 11, 2024.</p>

<ix:exclude><p id="xdx_237_zuMz82UM5bM2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><!-- Field: Page; Sequence: 4; Value: 13 -->
    <div id="xdx_239_zr1NsaTrgV35" style="border-bottom: Black 2pt solid; margin-top: 6pt; margin-bottom: 6pt"><p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; text-align: center; margin-bottom: 0pt"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->16<!-- Field: /Sequence -->&#160;</p></div>
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<ix:exclude><p id="xdx_233_zdQdu3Uy8nhg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_237_zMKytJjvQfN2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_234_zgN9mOUI6jvc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_232_zGp9R5PN0Jtg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><ix:exclude><div id="xdx_235_zSP2WEeBSKq9" style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><div style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></div></ix:exclude><!-- Field: /Rule-Page -->




<ix:exclude><p id="xdx_23E_zxIKBra9PUg4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Through
October 30, 2024, the Company borrowed a total of $<span id="xdx_905_eus-gaap--OtherBorrowings_iI_pn3n3_c20241030_zELugWvHe6xg"><ix:nonFraction name="us-gaap:OtherBorrowings" contextRef="AsOf2024-10-30" id="Fact001245" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">504</ix:nonFraction></span> under the Smith Loan and subsequently the Company repaid $508, representing
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</ix:nonNumeric><p id="xdx_814_zpJih9TtA74g" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001253" name="niobf:ExplorationExpendituresDisclosuresTextBlock"><p id="xdx_802_ecustom--ExplorationExpendituresDisclosuresTextBlock_z9X8V6zwVRH5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.</span></td>
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</table>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001255" name="niobf:ScheduleOfExplorationExpendituresTableTextBlock"><p id="xdx_892_ecustom--ScheduleOfExplorationExpendituresTableTextBlock_z8d27d3AMzGk" style="margin-top: 0; margin-bottom: 0"><span id="xdx_8B0_zqMXYkeCwNzh" style="display: none; visibility: hidden">Schedule of exploration expenditures</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%">
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 44%; text-align: left">&#160;Technical studies and engineering</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">&#160;Field management and other</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">&#160;Metallurgical development</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zEVwbaliH8o9" style="text-align: right"><ix:nonFraction name="us-gaap:ExplorationExpense" contextRef="From2025-01-012025-03-31_custom_MetallurgicaldevelopmentMember" id="Fact001264" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">73</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zgXv6ZLIez0e" style="text-align: right"><ix:nonFraction name="us-gaap:ExplorationExpense" contextRef="From2023-07-012024-03-31_custom_MetallurgicaldevelopmentMember" id="Fact001267" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,630</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt">&#160;Geologists and field staff</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zRasvG0TWRWh" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1268">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zhzHSVgzVne8" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1269">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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</table>

</ix:nonNumeric><p id="xdx_8A3_zYNhqAxKgT9g" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_817_z0SrtCnW9AYk" style="margin-top: 0; margin-bottom: 0"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001281" name="us-gaap:LesseeOperatingLeasesTextBlock"><p id="xdx_809_eus-gaap--LesseeOperatingLeasesTextBlock_zhOZieHdKOpg" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">11.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_822_zj5PdMK2AQn7">Leases</span></span></td>
</tr></table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>
<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001283" name="us-gaap:LeaseCostTableTextBlock"><p id="xdx_890_eus-gaap--LeaseCostTableTextBlock_z0peufoUfUU1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8BB_zLHae58uLxYb">The
Company incurred lease costs as follows</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_493_20250101__20250331_ziA9SNuPEjm8" style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_492_20240101__20240331_ztCiHkRJfC33" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_49E_20240701__20250331_zLxzxipe0z5d" style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td id="xdx_497_20230701__20240331_zaDrTqjYyuV" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td>&#160;</td>
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Ended March 31,</td><td>&#160;</td><td>&#160;</td>
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<tr id="xdx_40A_eus-gaap--LeaseCostAbstract_iB_zsBMAo7nudK6" style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">Operating Lease Cost:</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right"><ix:nonFraction name="niobf:FixedRentExpense" contextRef="From2023-07-012024-03-31" id="Fact001293" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">68</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr id="xdx_401_eus-gaap--VariableLeaseCost_pn3n3_zYhsLsJZvVya" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Variable rent expense</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:VariableLeaseCost" contextRef="From2025-01-012025-03-31" id="Fact001295" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:VariableLeaseCost" contextRef="From2024-07-01to2025-03-31" id="Fact001297" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">11</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:VariableLeaseCost" contextRef="From2023-07-012024-03-31" id="Fact001298" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">10</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40F_eus-gaap--ShortTermLeaseCost_pn3n3_zWcxkpt3hdz5" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Short-term lease cost</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ShortTermLeaseCost" contextRef="From2025-01-012025-03-31" id="Fact001300" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ShortTermLeaseCost" contextRef="From2024-01-012024-03-31" id="Fact001301" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ShortTermLeaseCost" contextRef="From2024-07-01to2025-03-31" id="Fact001302" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ShortTermLeaseCost" contextRef="From2023-07-012024-03-31" id="Fact001303" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr id="xdx_40F_eus-gaap--SubleaseIncome_iN_pn3n3_di_z1hQGzJAcNV5" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt">Sublease income</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:SubleaseIncome" contextRef="From2025-01-012025-03-31" id="Fact001305" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">8</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:SubleaseIncome" contextRef="From2024-01-012024-03-31" id="Fact001306" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="us-gaap:SubleaseIncome" contextRef="From2024-07-01to2025-03-31" id="Fact001307" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">32</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr id="xdx_40A_eus-gaap--LeaseCost_pn3n3_zPLdVhXO42L2" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt">Lease cost &#8211; other operating expense:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:LeaseCost" contextRef="From2025-01-012025-03-31" id="Fact001310" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">22</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:LeaseCost" contextRef="From2024-01-012024-03-31" id="Fact001311" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">21</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:LeaseCost" contextRef="From2024-07-01to2025-03-31" id="Fact001312" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">56</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:LeaseCost" contextRef="From2023-07-012024-03-31" id="Fact001313" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">62</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8A8_zVYbeXF5goF6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001315" name="us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock"><p id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_zqf5LnvEflhi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span><span id="xdx_8BD_zfr6vCfndjvc">The
maturities of lease liabilities are as follows as of March 31, 2025</span>:</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: center; padding-bottom: 1pt; padding-left: 10pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" id="xdx_49A_20250331_zX2K6skfOOgg" style="border-bottom: Black 1pt solid; text-align: center">Future Lease Maturities</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_zFg1OALyJnBi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 77%; text-align: left">Total remaining lease payments</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right"><ix:nonFraction name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue" contextRef="AsOf2025-03-31" id="Fact001317" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">172</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr id="xdx_40C_ecustom--LessAmountOfPaymentsRepresentingInterest_iI_pn3n3_zGdBlgJOSELl" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: 4.5pt">Less portion of payments representing interest</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(<ix:nonFraction name="niobf:LessAmountOfPaymentsRepresentingInterest" contextRef="AsOf2025-03-31" id="Fact001319" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">22</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr id="xdx_40D_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zhciloIvRqld" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Present value of lease payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:OperatingLeaseLiability" contextRef="AsOf2025-03-31" id="Fact001321" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">150</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>

<tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityCurrent_iNI_pn3n3_di_zsUtLmxkyhN" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; width: 77%">&#160; Less current portion of lease payments</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left; width: 1%">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right; width: 10%">(<ix:nonFraction name="us-gaap:OperatingLeaseLiabilityCurrent" contextRef="AsOf2025-03-31" id="Fact001323" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">98</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left; width: 1%">)</td></tr>
<tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zV2dldReGd5d" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt">Non-current lease liability</td><td style="padding-bottom: 1pt">&#160;</td>
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</ix:nonNumeric><p id="xdx_8A3_zUlnHnzOkMNf" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_815_zricxFziRlje" style="margin-top: 0; margin-bottom: 0"></p>
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<p style="margin: 0"></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">12.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_822_zeigfwW1Czob">Fair
Value Measurements</span></span></td>
</tr></table>
<p style="margin: 0">&#160;</p>

<p style="margin: 0; text-align: justify">The
following tables present information about the assets and liabilities that are measured at fair value on a recurring basis as
of March 31, 2025, and June 30, 2024, respectively, and indicate the fair value hierarchy of the valuation techniques the Company
utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted)
in active markets for identical instruments. Fair values determined by Level 2 inputs utilize data points that are observable,
such as quoted prices, interest rates, and yield curves. Fair values determined by Level 3 inputs are unobservable data points
for the financial instrument and include situations where there is little, if any, market activity for the instrument.</p>

<ix:exclude><p id="xdx_23F_zQDutC2ZSsPi" style="margin: 0">&#160;</p></ix:exclude>



<p style="margin-top: 0; margin-bottom: 0"></p>

<ix:exclude><!-- Field: Page; Sequence: 5; Value: 13 -->
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<ix:exclude><p id="xdx_235_zipElN1zJHW8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_233_z0D0QYRQJIJ5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_233_zGtrA686ear2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_230_zHPMH3jDBQFg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

<!-- Field: Rule-Page --><div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"><ix:exclude><div id="xdx_231_zmHpAknrO7q" style="border-top: Black 1pt solid; font-size: 1pt; width: 100%">&#160;</div></ix:exclude></div><!-- Field: /Rule-Page -->



<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001335" name="us-gaap:FairValueByBalanceSheetGroupingTextBlock"><p id="xdx_89C_eus-gaap--FairValueByBalanceSheetGroupingTextBlock_z2pEMELI8Mvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span id="xdx_8B7_zDTl2bcgO51c" style="display: none; visibility: hidden">Schedule
of fair values determined by level 3 inputs are unobservable data</span>&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Assets:</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 48%; text-align: left; padding-left: 0.125in">Cash and cash equivalents</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331_zdiyKXjLtkdi" title="Cash and cash equivalents" style="width: 10%; text-align: right"><ix:nonFraction name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" contextRef="AsOf2025-03-31" id="Fact001337" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,294</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHeIVvJiHWJ9" style="width: 10%; text-align: right"><ix:nonFraction name="us-gaap:CashAndCashEquivalentsFairValueDisclosure" contextRef="AsOf2025-03-31_us-gaap_FairValueInputsLevel1Member" id="Fact001338" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,294</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zcyVGwhAZjT5" style="width: 10%; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1339">-</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zvekItnkrNh7" style="width: 10%; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1340">-</span></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Investment in equity securities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98A_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331_zdBKWq5xFIwi" title="Investment in equity securities" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="niobf:AvailableForSaleSecuritiesEquitySecuritiesOther" contextRef="AsOf2025-03-31" id="Fact001342" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zH53tZ0NVQh7" title="Total Assets" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:AssetsFairValueDisclosure" contextRef="AsOf2025-03-31_us-gaap_FairValueInputsLevel1Member" id="Fact001351" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,297</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zO0HzQ2eGFRl" title="Total Assets" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1353">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zZivaiFlNyWh" title="Total Assets" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1355">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Liabilities:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in">Earnout Shares liability</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Warrant liabilities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331_zgf1PL4BKWQd" title="Warrant liabilities" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:WarrantsNotSettleableInCashFairValueDisclosure" contextRef="AsOf2025-03-31" id="Fact001363" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,200</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zzTdkRldV4dh" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1364">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98E_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zKT5u6lfezm3" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1370">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zDQ2ASIGLk0j" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:FinancialLiabilitiesFairValueDisclosure" contextRef="AsOf2025-03-31_us-gaap_FairValueInputsLevel2Member" id="Fact001371" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,200</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98D_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zWPzu14bgX7f" title="Total Liabilities" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:FinancialLiabilitiesFairValueDisclosure" contextRef="AsOf2025-03-31_us-gaap_FairValueInputsLevel3Member" id="Fact001373" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,327</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>


<p style="margin-top: 0; margin-bottom: 0">&#160;</p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Assets:</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 48%; text-align: left; padding-left: 0.125in">Cash and cash equivalents</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zCFLM8bV6FC3" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1389">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_ziKDz0seaLZk" title="Total Assets" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1391">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Liabilities:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in">April 2024 notes</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630_z6EjW5iyUJw5" title="April 2024 notes" style="text-align: right"><ix:nonFraction name="us-gaap:NotesPayable" contextRef="AsOf2024-06-30" id="Fact001393" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7,089</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zvLr0XSdwti2" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1394">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVXL5alYCXF7" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1395">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zmBXTcwRFBl8" title="April 2024 notes" style="text-align: right"><ix:nonFraction name="us-gaap:NotesPayable" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel3Member" id="Fact001397" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">7,089</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0.125in">Earnout Shares liability</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zz0jFDI9pVfj" title="Earnout Shares liability" style="text-align: right"><ix:nonFraction name="us-gaap:OtherLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30" id="Fact001399" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,817</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zijbJuXYgtS8" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1400">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_987_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zAVTjJ52v7U5" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1401">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zdgAmVFm36Hf" title="Earnout Shares liability" style="text-align: right"><ix:nonFraction name="us-gaap:OtherLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel3Member" id="Fact001403" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">3,817</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Warrant liabilities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630_zTM2kIsNUT32" title="Warrant liabilities" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:WarrantsNotSettleableInCashFairValueDisclosure" contextRef="AsOf2024-06-30" id="Fact001405" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">4,016</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zgutku2SAYwh" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1406">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zzmkwRINzu12" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:WarrantsNotSettleableInCashFairValueDisclosure" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001407" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,651</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_982_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zQB0E68DM9n9" title="Warrant liabilities" style="border-bottom: Black 1pt solid; text-align: right"><ix:nonFraction name="us-gaap:WarrantsNotSettleableInCashFairValueDisclosure" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel3Member" id="Fact001409" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">2,365</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt">Total</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_982_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zs366PrYRsO2" title="Total Liabilities" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:FinancialLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30" id="Fact001411" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">14,922</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_989_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zG24VUjh7hve" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1412">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z8hBjP8AiL5f" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:FinancialLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel2Member" id="Fact001413" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1,651</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCmfEagoAwTf" title="Total Liabilities" style="border-bottom: Black 2pt solid; text-align: right"><ix:nonFraction name="us-gaap:FinancialLiabilitiesFairValueDisclosure" contextRef="AsOf2024-06-30_us-gaap_FairValueInputsLevel3Member" id="Fact001415" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">13,271</ix:nonFraction></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

</ix:nonNumeric><p id="xdx_8AA_zyfD63a2iZEc" style="margin-top: 0; margin-bottom: 0"></p>

</ix:nonNumeric><p id="xdx_819_zSp58o68BFee" style="margin-top: 0; margin-bottom: 0"></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001417" name="niobf:MaterialCybersecurityIncidentNatureTextBlock"><p id="xdx_80F_ecustom--MaterialCybersecurityIncidentNatureTextBlock_zzOU8kSxUlX5" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">13.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_824_zw36maH7zOd5">CYBERSECURITY
INCIDENT</span></span></td>
</tr></table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
February 14, 2025, the Company became aware of unauthorized third-party access to its information systems, including portions
of its email systems, that resulted in misdirected vendor payments totaling approximately $506 (the &#8220;cybersecurity incident&#8221;).
The Company self-discovered the cybersecurity incident and promptly notified certain financial institutions and federal law enforcement
in an effort to, among other matters, recover the misdirected vendor payments. In addition, upon discovery of the cybersecurity
incident, the Company took steps to investigate, contain, assess, and remediate the cybersecurity incident. As a result of the
investigation, the Company determined that the cybersecurity incident was limited to the misdirected vendor payments noted above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
date, the Company has not recovered any funds, and as a result, the Company recorded a one-time charge of $<span id="xdx_90E_eus-gaap--OtherCostAndExpenseOperating_pn3n3_uUSD_c20250215__20250331_zxGRf8AOoVfa" title="Charge on operating expenses"><ix:nonFraction name="us-gaap:OtherCostAndExpenseOperating" contextRef="From2025-02-152025-03-31" id="Fact001419" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">506</ix:nonFraction></span> to other operating
expenses in the condensed consolidated statements of operations. Recoveries, if any, will be recognized as a gain in the period
that the funds are received. The Company incurred approximately $<span id="xdx_90C_eus-gaap--ProfessionalFees_pn3n3_c20250215__20250331_zER3fFdDfgij"><ix:nonFraction name="us-gaap:ProfessionalFees" contextRef="From2025-02-152025-03-31" id="Fact001420" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">10</ix:nonFraction></span> in professional service fees in connection with the investigation
and initial remediation related to this incident.</span></p>

</ix:nonNumeric><p id="xdx_810_zbgfFeAAPtGi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:nonNumeric contextRef="From2024-07-01to2025-03-31" escape="true" id="Fact001422" name="us-gaap:SubsequentEventsTextBlock"><p id="xdx_809_eus-gaap--SubsequentEventsTextBlock_zhMGux5kUxI8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">14.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_82B_z6PLpEbMQnLh">SUBSEQUENT
EVENTS</span></span></td>
</tr></table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font: 10pt Times New Roman, Times, Serif"><i>The
April 2025 Offering</i></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_902_eus-gaap--SubsequentEventDescription_dxL_c20250421__20250422__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zAyLLicTNP1f" title="Subsequent event, description::XDX::On%20April%2017%2C%202025%2C%20Maxim%20partially%20exercised%20its%20over-allotment%20option%20to%20purchase%20323%2C504%20additional%20Common%20Shares%20at%20the%20closing.%20The%20gross%20proceeds%20from%20the%20April%202025%20Offering%20were%20approximately%20%2420%2C800%20before%20deducting%20underwriting%20discounts%20and%20offering%20expenses."><span style="-sec-ix-hidden: xdx2ixbrl1424">On
April 21, 2025, the Company closed an underwritten public offering (the &#8220;April 2025 Offering&#8221;), pursuant to the underwriting
agreement, dated April 17, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold (i) 6,628,846 Common
Shares at a public offering price of $2.60 per Common Share and (ii) 1,063,462 pre-funded Common Share Purchase Warrants (the
&#8220;April 2025 Pre-Funded Warrants&#8221;) to purchase up to an additional 1,063,462 Common Shares at a public offering price
of $2.5999. The April 2025 Pre-Funded Warrants have an exercise price of $0.0001 per underlying Common Share, are exercisable
immediately, and do not have an expiration date.</span></span> On April 17, 2025, Maxim partially exercised its over-allotment option to purchase
323,504 additional Common </span></p>

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<ix:exclude><p id="xdx_23C_z8OQCSRkP8pc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>NioCorp
Developments Ltd.</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_236_zc7pbmO751fe" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to the Condensed Consolidated Financial Statements </b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_23D_zt5znRVA4Dvb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2025</b></span></p></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<ix:exclude><p id="xdx_237_zj1hBZUZWm59" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(expressed
in thousands of U.S. dollars, except share and per share data or as otherwise stated) (unaudited)</span></p></ix:exclude>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shares at the closing. The gross proceeds from the April 2025 Offering were approximately $20,800 before
deducting underwriting discounts and offering expenses.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
Company intends to use the net proceeds from the April 2025 Offering for working capital and general corporate purposes, including
to advance its efforts to launch construction of the Elk Creek Project and move it to commercial production.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Other
Equity Issuances</i></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the period from April 1, 2025 through May 8, 2025, the Company issued Common Shares under the Yorkville Equity Facility Financing
Agreement and through the exercise of Warrants by their holders. As a result of these transactions, the Company received cash
totaling $<span id="xdx_901_eus-gaap--ProceedsFromStockPlans_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zmGGh7KWdeH1" title="Cash received"><ix:nonFraction name="us-gaap:ProceedsFromStockPlans" contextRef="From2025-04-012025-05-08_us-gaap_SubsequentEventMember" id="Fact001433" format="ixt:numdotdecimal" decimals="0" unitRef="USD">3,599</ix:nonFraction></span> and issued <span id="xdx_90E_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zMlHsdiTQrPh" title="Issuance of common shares"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" contextRef="From2025-04-012025-05-08_us-gaap_SubsequentEventMember" id="Fact001435" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1,568,694</ix:nonFraction></span> Common Shares.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 40.5pt; text-indent: -40.5pt"><b><span id="a003"></span>ITEM 2. MANAGEMENT&#8217;S
DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i>The following discussion and analysis
should be read in conjunction with our historical interim condensed consolidated financial statements and related notes included
elsewhere in this Quarterly Report on Form 10-Q and the Annual Report on Form 10-K filed with the Securities and Exchange Commission
(the &#8220;SEC&#8221;) for the year ended June 30, 2024 filed on September 23, 2024 (the &#8220;Annual Report on Form 10-K&#8221;),
which have been prepared in accordance with generally accepted accounting principles in the United States (&#8220;U.S. GAAP&#8221;).&#160;This
discussion and analysis contains forward-looking statements and forward-looking information that involve risks, uncertainties,
and assumptions. Our actual results may differ materially from those anticipated in these forward-looking statements and information
as a result of many factors, including, but not limited to, those set forth elsewhere in this Quarterly Report on Form 10-Q. See
&#8220;Note Regarding Forward-Looking Statements&#8221; below.</i></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i>All currency amounts are stated in <span style="text-decoration: underline">U.S.
dollars</span> unless noted otherwise.</i></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i>As used in this Quarterly Report on
Form 10-Q, unless the context otherwise indicates, references to &#8220;we,&#8221; &#8220;our,&#8221; the &#8220;Company,&#8221;
&#8220;NioCorp,&#8221; and &#8220;us&#8221; refer to NioCorp Developments Ltd. and its subsidiaries, collectively. </i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Note Regarding Forward-Looking Statements</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This Quarterly Report on Form 10-Q and
the exhibits attached hereto contain &#8220;forward-looking statements&#8221; within the meaning of Section 27A of the Securities
Act of 1933, as amended (the &#8220;Securities Act&#8221;), and Section 21E of the Securities Exchange Act of 1934, as amended
(the &#8220;Exchange Act&#8221;), and &#8220;forward-looking information&#8221; within the meaning of applicable Canadian securities
legislation (collectively, &#8220;forward-looking statements&#8221;). Such forward-looking statements concern our anticipated results
and developments in the operations of the Company in future periods, planned exploration activities, the adequacy of the Company&#8217;s
financial resources, and other events or conditions that may occur in the future.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Forward-looking statements have been based
upon our current business and operating plans, as approved by the Company&#8217;s Board of Directors, and may include statements
regarding the anticipated benefits of the transactions (the &#8220;2023 Transactions&#8221;) contemplated by the previously disclosed
Business Combination Agreement, dated September 25, 2022 (the &#8220;Business Combination Agreement&#8221;), among the Company,
GX Acquisition Corp. II and Big Red Merger Sub Ltd, including NioCorp&#8217;s ability to access the full amount of the expected
net proceeds of the Standby Equity Purchase Agreement, dated January 26, 2023 (the &#8220;Yorkville Equity Facility Financing Agreement&#8221;),
between the Company and YA II PN, Ltd., an investment fund managed by Yorkville Advisors Global, LP (&#8220;Yorkville&#8221;);
the anticipated benefits of the April 2025 Offering (as defined below); NioCorp&#8217;s ability to receive a final commitment of
financing from the Export-Import Bank of the United States (&#8220;EXIM&#8221;); anticipated benefits of the listing of the Common
Shares, no par value, of the Company (&#8220;Common Shares&#8221;) on The Nasdaq Stock Market LLC (&#8220;Nasdaq&#8221;); the financial
and business performance of NioCorp; NioCorp&#8217;s anticipated results and developments in the operations of NioCorp in future
periods; NioCorp&#8217;s planned exploration and development activities; the adequacy of NioCorp&#8217;s financial resources; NioCorp&#8217;s
ability to secure sufficient project financing to complete construction and commence operation of the Company&#8217;s niobium,
scandium and titanium project (the &#8220;Elk Creek Project&#8221;) located in southeastern Nebraska and move it to commercial
operation, including the required financing to get to a final investment decision; NioCorp&#8217;s expectation and ability to produce
niobium, scandium, and titanium and the potential to produce rare earth elements at the Elk Creek Project; NioCorp&#8217;s plans
to produce and supply specific products and market demand for those products; the outcome of current recovery process improvement
testing and the evaluation of the benefits and costs of electrifying the mine using Railveyor technology, and NioCorp&#8217;s expectation
that such process and design improvements could lead to greater efficiencies and cost savings in the Elk Creek Project, including
the twin ramp Railveyor mining design; the Elk Creek Project&#8217;s ability to produce multiple critical metals; the Elk Creek
Project&#8217;s projected ore production and mining operations over its expected mine life; the completion of technical and economic
analyses on the potential addition of magnetic rare earth oxides to NioCorp&#8217;s planned product suite; NioCorp&#8217;s updating
its technical report for the Elk Creek Project; statements with respect to the estimation of mineral resources and mineral reserves;
the exercise of options to purchase additional land parcels; the execution of contracts with engineering, procurement and construction
companies; the advancement of offtake discussions with potential customers; NioCorp&#8217;s ongoing evaluation of the impact of
inflation, supply chain issues and geopolitical unrest on the Elk Creek Project&#8217;s economic model; and the creation of full
time and contract construction jobs over the construction period of the Elk Creek Project.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Forward-looking statements are frequently,
but not always, identified by words such as &#8220;expects,&#8221; &#8220;anticipates,&#8221; &#8220;believes,&#8221; &#8220;intends,&#8221;
&#8220;estimates,&#8221; &#8220;potential,&#8221; &#8220;possible,&#8221; and similar expressions, or statements that events, conditions,
or results &#8220;will,&#8221; &#8220;may,&#8221; &#8220;could,&#8221; or &#8220;should&#8221; (or the negative and grammatical
variations of any of these terms) occur or be achieved. Any statements that express or involve discussions with respect to predictions,
expectations, beliefs, plans, projections, objectives, assumptions, or future events or performance (often, but not always, using
words or phrases such as &#8220;expects&#8221; or &#8220;does not expect,&#8221; &#8220;is expected,&#8221; &#8220;anticipates&#8221;
or &#8220;does not anticipate,&#8221; &#8220;plans,&#8221; &#8220;estimates,&#8221; or &#8220;intends,&#8221; or stating that certain
actions, events, or results &#8220;may,&#8221; &#8220;could,&#8221; &#8220;would,&#8221; &#8220;might,&#8221; or &#8220;will&#8221;
be taken, occur or be achieved) are not statements of historical fact and may be forward-looking statements. Forward-looking statements
reflect material expectations and assumptions, including, without limitation, expectations and assumptions relating to: NioCorp&#8217;s
ability to receive sufficient project financing for the construction and development of the Elk Creek Project on acceptable terms
or at all; the future price of metals; the stability of the financial and capital markets; NioCorp&#8217;s ability to service its
debt and meet the payment obligations thereunder; and current estimates and assumptions regarding the 2023 Transactions and their
benefits. Such forward-looking statements reflect the Company&#8217;s current views with respect to future events and are subject
to certain known and unknown risks, uncertainties, and assumptions. Many factors could cause actual results, performance, or achievements
to be materially different from any future results, performance, or achievements that may be expressed or implied by such forward-looking
statements, including, among others, risks related to the following: NioCorp&#8217;s ability to use the net proceeds of the April
2025 Offering in a manner that will increase the value of shareholders&#8217; investment; NioCorp&#8217;s ability to operate as
a going concern; NioCorp&#8217;s requirement of significant additional capital; NioCorp&#8217;s ability to receive sufficient project
financing for the construction of the Elk Creek Project on acceptable terms or at all; NioCorp&#8217;s ability to receive a final
commitment of financing from EXIM on an acceptable timeline, on acceptable terms, or at all; NioCorp&#8217;s ability to recognize
the anticipated benefits of the 2023 Transactions, including NioCorp&#8217;s ability to access the full amount of the expected
net proceeds under the Yorkville Equity Facility Financing Agreement; NioCorp&#8217;s ability to continue to meet Nasdaq listing
standards; risks relating to the Common Shares, including price volatility, lack of dividend payments and dilution or the perception
of the likelihood of any of the foregoing; the extent to which NioCorp&#8217;s level of indebtedness and/or the terms contained
in agreements governing NioCorp&#8217;s indebtedness, if any, or the Yorkville Equity Facility Financing Agreement may impair NioCorp&#8217;s
ability to obtain additional financing, on acceptable terms, or at all; covenants contained in agreements with NioCorp&#8217;s
secured creditors that may affect its assets; NioCorp&#8217;s limited operating history; NioCorp&#8217;s history of losses; the
material weaknesses in NioCorp&#8217;s internal control over financial reporting, NioCorp&#8217;s efforts to remediate such material
weaknesses and the timing of remediation; the possibility that NioCorp may qualify as a &#8220;passive foreign investment company&#8221;
(&#8220;PFIC&#8221;) under the Internal Revenue Code of 1986, as amended (the &#8220;Code&#8221;); the potential that the 2023
Transactions could result in NioCorp becoming subject to materially adverse U.S. federal income tax consequences as a result of
the application of Section 7874 and related sections of the Code; cost increases for NioCorp&#8217;s exploration and, if warranted,
development projects; a disruption in, or failure of, NioCorp&#8217;s information technology systems, including those related to
cybersecurity; equipment and supply shortages; variations in the market demand for, and prices of, niobium, scandium, titanium
and rare earth products; current and future offtake agreements, joint ventures, and partnerships; NioCorp&#8217;s ability to attract
qualified management; estimates of mineral resources and reserves; mineral exploration and production activities; feasibility study
results; the results of metallurgical testing; the results of technological research; changes in demand for and price of commodities
(such as fuel and electricity) and currencies; competition in the mining industry; changes or disruptions in the securities markets;
legislative, political or economic developments, including changes in federal and/or state laws that may significantly affect the
mining industry; trade policies and tensions, including tariffs; inflationary pressures; the impacts of climate change, as well
as actions taken or required by governments related to strengthening resilience in the face of potential impacts from climate change;
the need to obtain permits and comply with laws and regulations and other regulatory requirements; the timing and reliability of
sampling and assay data; the possibility that actual results of work may differ from projections/expectations or may not realize
the perceived potential of NioCorp&#8217;s projects; risks of accidents, equipment breakdowns, and labor disputes or other unanticipated
difficulties or interruptions; the possibility of cost overruns or unanticipated expenses in development programs; operating or
technical difficulties in connection with exploration, mining, or development activities; management of the water balance at the
Elk Creek Project site; land reclamation requirements related to the Elk Creek Project; the speculative nature of mineral exploration
and development, including the risks of diminishing quantities of grades of reserves and resources; claims on the title to NioCorp&#8217;s
properties; potential future litigation; and NioCorp&#8217;s lack of insurance covering all of NioCorp&#8217;s operations.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Should one or more of these risks or uncertainties
materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described herein.
This list is not exhaustive of the factors that may affect any of the Company&#8217;s forward-looking statements. Forward-looking
statements are statements about the future and are inherently uncertain, and actual achievements of the Company or other future
events or conditions may differ materially </p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">from those reflected in the forward-looking statements due to a variety of risks, uncertainties,
and other factors, including without limitation those discussed under the heading &#8220;Risk Factors&#8221; in our Annual Report
on Form 10-K, as well as other factors described elsewhere in this Quarterly Report on Form 10-Q and the Company&#8217;s other
reports filed with the SEC.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company&#8217;s forward-looking statements
contained in this Quarterly Report on Form 10-Q are based on the beliefs, expectations, and opinions of management as of the date
of this Quarterly Report on Form 10-Q. The Company does not assume any obligation to update forward-looking statements if circumstances
or management&#8217;s beliefs, expectations, or opinions should change, except as required by law. For the reasons set forth above,
investors should not attribute undue certainty to, or place undue reliance on, forward-looking statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Qualified Person</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">All technical and scientific information
that forms the basis for the Elk Creek Project disclosure included in this Quarterly Report on Form 10-Q has been reviewed and
approved by Scott Honan, M.Sc., SME-RM, NioCorp&#8217;s Chief Operating Officer. Mr. Honan is a &#8220;Qualified Person&#8221;
as such term is defined in National Instrument 43-101 &#8211; Standards of Disclosure for Mineral Projects and subpart 1300 of
Regulation S-K.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Company Overview</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">NioCorp is developing the Elk Creek Project,
located in southeast Nebraska. The Elk Creek Project is a development-stage property that has disclosed niobium, scandium, and
titanium reserves and resources and disclosed rare earth mineral resources. The Company is continuing technical and economic studies
around the rare earths contained in the Elk Creek Project&#8217;s mineral resources in order to determine whether extraction of
rare earth elements can be reasonably justified and economically viable after taking into account all relevant factors. Niobium
has developing applications in the formulation of solid-state lithium-ion batteries, which may reduce charging times and increase
battery safety. Niobium is used to produce various superalloys that are extensively used in high performance aircraft and jet turbines.
It also is used in High-Strength, Low-Alloy steel, a stronger steel used in automobiles, bridges, structural systems, buildings,
pipelines, and other applications that generally increases strength and/or reduces weight, which can result in environmental benefits,
including reduced fuel consumption and material usage and fewer air emissions. Scandium can be combined with aluminum to make high-performance
alloys with increased strength and improved corrosion resistance. Scandium also is a critical component of advanced solid oxide
fuel cells, an environmentally preferred technology for high-reliability, distributed electricity generation. Titanium is a component
of various superalloys and other applications that are used for aerospace applications, weapons systems, protective armor, medical
implants, and many others. It also is used in pigments for paper, paint, and plastics. Rare earths are critical to electrification
and decarbonization initiatives and can be used to manufacture the strongest permanent magnets commercially available.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Our primary business strategy is to advance
our Elk Creek Project to commercial production. We are focused on obtaining additional funds to carry out our near-term planned
work programs associated with securing the project financing necessary to complete mine development and construction of the Elk
Creek Project.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Recent Corporate Events</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On April 21, 2025, the Company closed an
underwritten public offering (the &#8220;April 2025 Offering&#8221;), pursuant to the underwriting agreement, dated April 17, 2025
(the &#8220;April 2025 Underwriting Agreement&#8221;), with Maxim Group LLC (&#8220;Maxim&#8221;), as underwriter, pursuant to
which the Company issued and sold (i) 6,628,846 Common Shares at a public offering price of $2.60 per Common Share and (ii) 1,063,462
pre-funded Common Share Purchase Warrants (the &#8220;April 2025 Pre-Funded Warrants&#8221;) to purchase up to an additional 1,063,462
Common Shares at a public offering price of $2.5999. The April 2025 Pre-Funded Warrants have an exercise price of $0.0001 per underlying
Common Share, are exercisable immediately, and do not have an expiration date. On April 17, 2025, Maxim partially exercised its
over-allotment option to purchase 323,504 additional Common Shares at the closing. The gross proceeds from the April 2025 Offering
were approximately $20.8 million, before deducting underwriting discounts and offering expenses.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Elk Creek Project Update </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">During the quarter ended March 31, 2025,
the Company completed negotiations with two landowners in Nebraska and entered into contract amendments which extended the option
periods by approximately five years for each Option to Purchase agreement (&#8220;OTP&#8221;) covering two parcels of land for
project construction and operation which the Company</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">does not already own. The Company
paid $90,000 upon closing of the OTP extensions and will make periodic payments totaling $23,000 over the extension period related
to these contract amendments. With the closing of these two OTP extensions, along with four extensions closed earlier in fiscal
year 2025, all substantive OTPs related to the project have expiration dates between December 2029 and May 2040.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On April 23, 2025, the Company announced
the launch of a drilling campaign (the &#8220;Campaign&#8221;) designed to support the conversion of a portion of its current Indicated
Resources into Measured Resources and the subsequent conversion of a portion of its current Probable Mineral Reserves into Proven
Mineral Reserves at the Elk Creek Project. The Campaign will supplement previous exploratory drilling and will operate under existing
permits issued by the State of Nebraska. The Campaign is intended to complement other technical and economic analyses necessary
to update the feasibility study for the Elk Creek Project. An updated feasibility study is necessary as part of the due diligence
process for up to $800 million in potential debt financing that NioCorp is seeking from EXIM, as further discussed under &#8220;Liquidity
and Capital Resources<i>&#8221; </i>below.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="text-decoration: underline">Other Activities</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company has developed and begun to
execute a work plan to further advance the development of the Elk Creek Project. In addition to the expected updates to Mineral
Resources and Mineral Reserves, noted above, the Company expects to finalize engineering and costing of its new and more efficient
production process which incorporates the potential addition of light and heavy magnetic rare earth oxides, the planned production
of titanium in the form of titanium tetrachloride, and the potential to produce both ferroniobium and niobium oxide as commercial
products. In addition, the Company is examining plans to potentially modify the design of the mine to incorporate a twin ramp for
access along with a Railveyor system for material movement instead of utilizing its currently planned vertical mining shafts. The
updated mine design is expected to also incorporate updated costing. This work is expected to be summarized in an updated feasibility
study for the Elk Creek Project.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">In addition to the work plans noted above,
as funds become available through the Company&#8217;s fundraising efforts, the Company expects to undertake the following activities
to further advance the Elk Creek Project and the Company is assessing and prioritizing the timing of these efforts:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
    <td style="padding-right: 1.45pt; padding-bottom: 4pt">&#160;</td>
    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
    <td style="padding-right: 1.45pt; padding-bottom: 4pt">&#160;</td>
    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
    <td style="padding-right: 1.45pt; padding-bottom: 2pt; text-align: justify"><span style="font-size: 10pt">Completion of the final detailed engineering for the underground portion of the Elk Creek Project;</span></td></tr>
<tr style="vertical-align: top">
    <td style="padding-right: 1.45pt; padding-bottom: 4pt">&#160;</td>
    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
    <td style="padding-right: 1.45pt; padding-bottom: 4pt">&#160;</td>
    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
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    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
    <td style="padding-right: 1.45pt; padding-bottom: 4pt">&#160;</td>
    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
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<tr style="vertical-align: top">
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    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
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    <td style="padding-right: 1.45pt; padding-bottom: 4pt"><span style="font-size: 10pt">&#9679;</span></td>
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<tr style="vertical-align: top">
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and costing of road improvements near the junction of Nebraska state highways 50 and 62, which are intended to facilitate access
to the Elk Creek Project site and manage increased traffic in the project vicinity.</span></td></tr>
</table>

<p style="margin: 0">&#160;&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Financial and Operating Results</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company has no revenues from mining
operations. Operating expenses incurred primarily related to costs incurred for the advancement of the Elk Creek Project and the
activities necessary to support corporate and shareholder duties and are detailed in the following table.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 98%; border-collapse: collapse; margin-left: 2%">
<tr>
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    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt; text-align: center">&#160;</td>
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<tr>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: center">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; text-align: center">&#160;</td>
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    <td style="vertical-align: bottom; padding-bottom: 1.5pt; text-align: center">&#160;</td>
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<tr style="background-color: #CCECFF">
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td></tr>
<tr style="background-color: white">
    <td style="vertical-align: bottom; padding-left: 9pt"><span style="font-size: 10pt">Exploration expenditures</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">495</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; padding-left: 9pt"><span style="font-size: 10pt">Other operating expenses</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">1,092</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">1,457</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">3,100</span></td>
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<tr style="background-color: white">
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    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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<tr style="background-color: #CCECFF">
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(3,854</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td></tr>
<tr>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(724</span></td>
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    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">620</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(580</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-left: 9pt"><span style="font-size: 10pt">Change in fair values of convertible notes</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">40</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td></tr>
<tr style="background-color: white">
    <td style="vertical-align: bottom; padding-left: 9pt"><span style="font-size: 10pt">Interest expense</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">1,016</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">48</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">4,267</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-left: 9pt"><span style="font-size: 10pt">Foreign exchange (gain) loss</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(2</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(27</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">2</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(10</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td></tr>
<tr>
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    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(195</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(122</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(195</span></td>
    <td style="vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">)</span></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; padding-left: 9pt"><span style="font-size: 10pt">Loss on equity securities</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">2</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">2</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">2</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td></tr>
<tr>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; padding-left: 9pt"><span style="font-size: 10pt">Income tax benefit</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">-</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(101</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; padding-left: 0in"><span style="font-size: 10pt">Net loss and comprehensive loss</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(5,375</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(4,225</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(7,995</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(10,999</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td></tr>
<tr>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt; padding-left: 9pt"><span style="font-size: 10pt">Less: Loss attributable to noncontrolling interest</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(78</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(169</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(177</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(439</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">Net loss attributable to the Company</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">$</span></td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(5,297</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">$</span></td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(4,056</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td colspan="2" style="vertical-align: top; padding-right: 0.7pt">&#160;</td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">$</span></td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(7,818</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt"><span style="font-size: 10pt">$</span></td>
    <td style="border-bottom: Black 1.5pt solid; vertical-align: bottom; padding-right: 0.7pt; text-align: right"><span style="font-size: 10pt">(10,560</span></td>
    <td style="vertical-align: bottom; padding-bottom: 1.5pt"><span style="font-size: 10pt">)</span></td></tr>
<tr>
    <td style="width: 49%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 10%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 10%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 9%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 1%">&#160;</td>
    <td style="width: 8%">&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Three-month period ended March 31, 2025
compared to the three-month period ended March 31, 2024</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Significant items affecting operating expenses
are noted below:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Employee-related expenditures</i>
decreased for the three-month period in 2025 as compared to 2024 primarily due to the timing of options issued to employees in
2024.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Other operating expenses
</i>include costs related to investor relations, general office expenditures, equity offering and proxy expenditures, board-related
expenditures, and other miscellaneous costs. These costs decreased for the three-month period in 2025 as compared to 2024 primarily
due to the timing of fully vested Options issued to board members and advisors in 2024, a decline in financial services spending,
and lower general insurance costs, partially offset by the cybersecurity expense incurred in 2025 associated with a cybersecurity
incident that resulted in misdirected vendor payments.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Other significant items impacting the change
in the Company&#8217;s net loss are noted below<i>:</i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Change in fair value of Earnout
Shares liability </i>represents the changes in fair value related to the shares of Class B common stock of Elk Creek Resource Corporation
(&#8220;ECRC&#8221;), an indirect, majority-owned subsidiary of NioCorp formerly known as GX Acquisition Corp. II, the rights of
the holders of which to exchange such shares into Common Shares are subject to certain vesting conditions (such shares of ECRC
Class B common stock, the &#8220;Earnout Shares&#8221;). The 2025 expense represents the impact of an increase in the Company&#8217;s
Common Share price on the financial modeling used to determine the period end fair values, whereas the 2024 gain represents the
impact of a lower share price on the financial modeling results.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Change in fair value of warrant
liabilities </i>represents the changes in fair value of Common Share purchase warrants (&#8220;Warrants&#8221;) that are carried
as liabilities in the condensed consolidated balance sheet. Expense for the three-month period ending March 31, 2025, reflects
the impact of an increase in the Company&#8217;s Common Share price on the</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">Black-Scholes modeling
results for our outstanding Warrant liabilities, whereas the 2024 gain primarily represents the impact of a lower share price
on the modeling at period end.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Interest expense</i> decreased
for the three-month period in 2025 as compared to 2024, as 2024 included accretion expense associated with the unsecured convertible
debentures (the &#8220;Convertible Debentures&#8221;) issued to Yorkville in March 2023. The outstanding balance of the Convertible
Debentures was substantially reduced during fiscal year 2024 and was fully retired in the first quarter of 2025.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Other Gain</i>s for the three-month
period ended March 31, 2024, represents the change in fair value of Canadian dollar-denominated Options which were being carried
as a liability.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Loss attributable to noncontrolling
interest</i> represents the portion of net loss in ECRC not owned by the Company.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Nine-month period ended March 31, 2025
compared to the nine-month period ended March 31, 2024</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Significant items affecting operating expenses
are noted below.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Employee-related expenditures</i>
decreased for the nine-month period in 2025 as compared to 2024 primarily due to a reduction in the number of options issued to
employees and the impact of a lower stock price on the Black-Scholes modeling results.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Professional fees</i> decreased
for the nine-month period in 2025 as compared to 2024, primarily due to higher costs incurred in 2024 related to the timing of
legal services associated with the Company&#8217;s SEC registration statements filed in October 2023, as well as increased audit
fees associated with the Company&#8217;s June 30, 2023 financial statements and increased review fees in connection with the Company&#8217;s
September 30, 2023 financial statements.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Exploration expenditures</i>
decreased for the nine-month period in 2025 as compared to 2024, as 2024 costs included operation of the demonstration-scale processing
plant located in Trois-Rivieres, Quebec built by the Company and L3 Process Development (&#8220;L3&#8221;) and operated by L3 (the
&#8220;Demonstration Plant&#8221;). Operation of the Demonstration Plant ended during the third quarter of fiscal year 2024.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><i>Other operating expenses</i>
decreased for the nine-month period in 2025 as compared to 2024 primarily due to a decrease in director and officer insurance expense,
the timing of fully vested Options issued to board members and advisors, and declines in scandium development initiatives and financial-related
services, partially offset by the cybersecurity expense incurred in 2025 associated with a cybersecurity incident that resulted
in misdirected vendor payments.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Overall, changes in the fair value of Earnout
Shares and Warrant liabilities, and the decline in interest expense were based on the same factors that impacted the three-month
results noted above.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Liquidity and Capital Resources</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We have no revenue generating operations
from which we can internally generate funds. To date, our ongoing operations have been financed by the sale of our equity securities
by way of public and private offerings, convertible securities issuances, the exercise of Options and Warrants, and related party
loans. With respect to currently outstanding Options and Warrants, we believe that exercise of these instruments, and cash proceeds
from such exercises, will not occur unless and until the market price for our Common Shares equals or exceeds the related exercise
price of each instrument.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On April 12, 2024, the Company issued and
sold to Yorkville and Lind Global Fund II (&#8220;Lind II&#8221; and, together with Yorkville, the &#8220;April 2024 Purchasers&#8221;),
$8.0 million aggregate principal amount of unsecured notes (the &#8220;April 2024 Notes&#8221;), pursuant to a securities purchase
agreement, dated April 11, 2024, between the Company and each of the April 2024 Purchasers. The Company also issued to the April
2024 Purchasers, in proportion to the aggregate principal amount of the April 2024 Notes issued to each April 2024 Purchaser, Warrants
to purchase up to 615,385 Common Shares. All remaining amounts due to Lind II ($176,000) and Yorkville ($1.0 million) under the
April 2024 Notes were repaid on January 6, 2025, And February 7, 2025, respectively.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On September 11, 2024, the Company and
Mark Smith entered into the Loan Agreement, by and between the Company and Mark Smith (the &#8220;Smith Loan Agreement&#8221;),
which provides for a $2.0 million non-revolving credit facility (the &#8220;Smith Loan&#8221;). A total of $504,000 was subsequently
drawn down, and subsequently the Company repaid $508,000, representing the balance of the interest and principal outstanding under
the Smith Loan, plus $41,000 related to the loan origination fees payable.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On November 5, 2024, the Company closed
an underwritten public offering (the &#8220;November 2024 Registered Offering&#8221;), pursuant to the underwriting agreement,
dated November 3, 2024, with Maxim, as underwriter, which consisted of 1,592,356 Common Shares, 1,672,090 Series A warrants to
purchase up to an additional 1,672,090 Common Shares and 836,045 Series B warrants to purchase up to 836,045 Common Shares.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On November 13, 2024, the Company closed
a non-brokered private placement (the &#8220;November 2024 Private Offering&#8221;) pursuant to binding subscription agreements
with certain accredited investors as part of a non-brokered private placement of 2,199,602 units of the Company (the &#8220;November
2024 Units&#8221;). Each November 2024 Unit consists of one Common Share, one Series A warrant to purchase up to an additional
Common Share and one-half of one Series B warrant to purchase up to one-half of one Common Share.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On January 31, 2025, the Company closed
an underwritten public offering (the &#8220;January 2025 Offering&#8221;), pursuant to the underwriting agreement, dated January
29, 2025, with Maxim, as underwriter, which consisted of 2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to
an additional 2,577,320 Common Shares and 1,288,660 Series B warrants to purchase up to 1,288,660 Common Shares.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The combined gross proceeds from the November
2024 Registered Offering, the November 2024 Private Offering, and the January 2025 Offering were approximately $11.0 million, before
deducting underwriting discounts and offering expenses. These proceeds were used for working capital and general corporate purposes,
to repay amounts outstanding on the Smith Loan, to repay the April 2024 Notes, and to a limited degree, to advance efforts to launch
construction of the Elk Creek Project and move it to commercial operation.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As of March 31, 2025, the Company had cash
of $1.3 million and working capital of $0.3 million, compared to cash of $2.0 million and a working capital deficit of $9.0 million
on June 30, 2024.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We expect that the Company will operate
at a loss for the foreseeable future. The Company&#8217;s current planned cash needs are approximately $23.0 million for the next
twelve months. In addition to outstanding accounts payable and short-term liabilities, our planned expenditures over the next twelve
months are expected to consist of expenditures relating to certain advancements of the Elk Creek Project by NioCorp&#8217;s majority
owned subsidiary, ECRC, corporate overhead costs and estimated costs related to securing financing necessary for advancement of
the Elk Creek Project.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The planned corporate overhead costs include
Elk Creek property lease commitments, which are $22,000 through June 30, 2025, and outstanding accounts payable.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The estimated financing costs associated
with the Elk Creek Project over the next twelve months include, but are not limited to, costs relating to the EXIM application
process, the scope of which remains under discussion with EXIM. On June 6, 2023, the Company announced that it had submitted an
application to EXIM for debt financing (the &#8220;EXIM Financing&#8221;) to fund the project costs for the Elk Creek Project,
under EXIM&#8217;s &#8220;Make More in America&#8221; initiative. The EXIM Financing is subject to, among other matters, the satisfactory
completion of due diligence, the negotiation and settlement of final terms, and the negotiation of definitive documentation. There
can be no assurance that the EXIM Financing will be completed on the terms described herein or at all. The Company was informed
that its application received approval by the first of three reviews by the EXIM Transaction Review Committee (the &#8220;TRC&#8221;)
on October 2, 2023. During the quarter, EXIM continued to process the Company&#8217;s application for debt financing under EXIM&#8217;s
Make More in America Program. The Company&#8217;s application sits at TRC in the second step in EXIM&#8217;s four-step approval
process. The Company continues to meet with EXIM as well as providing responses to requests for additional information from EXIM
and to the consultants that are conducting due diligence on the Company&#8217;s application on behalf of EXIM. As part of the diligence
process, EXIM has identified additional project activities to be undertaken, including, among other things, an updated mine plan
and updated Elk Creek Project capital costs on a final or close-to-final basis reflecting updated process flows. However, there
can be no assurance what further project activities or matters EXIM may request in connection with the application process. We
are currently unable to estimate how long the application process may </p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">take, and there can be no assurances that we will be able
to successfully negotiate a final commitment of debt financing from EXIM.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The planned expenditures relating to the
advancement of the Elk Creek Project over the next twelve months include, but are not limited to, an updated mine plan and updated
capital costs in connection with the EXIM application process.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The gross proceeds from the April
2025 Offering were approximately $20.8 million, before deducting underwriting discounts and offering expenses of
approximately $2.0 million. In addition, during the period from April 1, 2025 through May 8, 2025, the Company issued Common
Shares under the Yorkville Equity Facility Financing Agreement and through the exercise of Warrants by their holders. As a
result of these transactions, the Company received cash totaling approximately $3.6 million and issued 1,568,694 Common
Shares. We expect to use the proceeds from the April 2025 Offering, the Yorkville Equity Facility Financing Agreement,
and the Warrant exercise issuances noted above, to fund our planned expenditures for the next twelve months. However,
additional work is required in order to advance the Elk Creek Project, and if the Company were able to obtain additional
funding, the Company would be able to accelerate planned expenditures ahead of its current schedule. In addition, to the
extent that EXIM requests further project activities to be undertaken in connection with the diligence process, the Company
would require additional funding to complete such activities. The Company&#8217;s ability to continue operations and fund our
current work plan  is dependent on management&#8217;s ability to secure additional financing.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">When available, the Yorkville Equity Facility
Financing Agreement provides an opportunity to actively manage the cash needs of the Company more closely, and the Company may
also utilize the Yorkville Equity Facility Financing Agreement to potentially generate funds at a time when they are in need. Alternatively,
the Company can also utilize the Yorkville Equity Facility Financing Agreement for opportunistic share sales. However, the Yorkville
Equity Facility Financing Agreement will expire by its terms on April 1, 2026.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Except for the potential funding from advances
under the Yorkville Equity Facility Financing Agreement, as discussed above, and the potential exercise of Options and Warrants,
we currently have no further funding commitments or arrangements for additional financing at this time. Management is actively
pursuing additional sources of debt and equity financing, and while it has been successful in doing so in the past, there is no
assurance that we will be able to obtain any such additional financing on acceptable terms, if at all. Pursuant to the Exchange
Agreement, dated as of March 17, 2023 (as amended, supplemented or otherwise modified, the &#8220;Exchange Agreement&#8221;), by
and among NioCorp, ECRC and the Sponsor, NioCorp is restricted from issuing equity or equity-linked securities (other than Common
Shares) or any preferred equity or non-voting equity if such issuance would adversely impact the rights of the holders of the shares
of Class B common stock of ECRC, without the consent of the holders of a majority of the shares of Class B common stock of ECRC.
The April 2025 Underwriting Agreement also contains certain covenants that, among other things, limit NioCorp&#8217;s ability to
enter into any variable rate transaction, including issuances of equity or debt securities that are convertible into Common Shares
at variable rates and any equity line of credit, at-the-market agreement or other continuous offering of Common Shares, subject
to certain exceptions, until July 2025. Notwithstanding the restrictions set forth in the Exchange Agreement and the April 2025
Underwriting Agreement, there is significant uncertainty that we would be able to secure any additional financing in the current
equity or debt markets. The quantity of funds to be raised and the terms of any proposed equity or debt financing that may be undertaken
will be negotiated by management as opportunities to raise funds arise. Management may pursue funding sources of both debt and
equity financing, including but not limited to the issuance of equity securities in the form of Common Shares, Warrants, subscription
receipts, or any combination thereof in units of the Company pursuant to private placements to accredited investors or pursuant
to public offerings in the form of underwritten/brokered offerings, registered direct offerings, or other forms of equity financing
and public or private issuances of debt securities, including secured and unsecured convertible debt instruments, or secured debt
project financing. Management does not currently know the terms pursuant to which such financings may be completed in the future,
but any such financings will be negotiated at arm&#8217;s-length. Future financings involving the issuance of equity securities
or derivatives thereof will likely be completed at a discount to the then-current market price of the Company&#8217;s securities
and will likely be dilutive to current shareholders. In addition, we could raise funds through the sale of interests in our mineral
properties, although current market conditions and other recent worldwide events have substantially reduced the number of potential
buyers/acquirers of any such interests. However, we cannot provide any assurances that we will be able to be successful in raising
such funds.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">Based on the
conditions described within, management has concluded, as supported by the notes that accompany our financial statements for
the year ended June 30, 2024, that substantial doubt exists as to our ability to continue as a going concern. The interim
condensed consolidated financial statements included in this Quarterly Report on Form 10-Q have been prepared under the
assumption that we will continue as a going concern. As defined under S-K 1300, we are a development stage issuer and we have
incurred losses since our inception. We may not have sufficient cash, including Option and Warrant exercises subsequent to
March 31, 2025, to fund normal operations for the next twelve months from the issuance date of this Quarterly Report on Form
10-Q without raising additional funds.</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company will require additional capital to meet
its long-term operating requirements. Uncertainty in capital markets, supply chain disruptions, increased interest rates and inflation,
and the potential for geographic recessions have contributed to general global economic uncertainty. During the three months ended
March 31, 2025, these events continued to create uncertainty with respect to overall project funding and timelines. We believe
that the going concern uncertainty cannot be alleviated with confidence until the Company has entered into a business climate where
funding of its planned ongoing operating activities is secured. Therefore, these factors raise substantial doubt as to our ability
to continue as a going concern.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We have no exposure to any asset-backed
commercial paper. Other than cash held by our subsidiaries for their immediate operating needs in Colorado and Nebraska, all of
our cash reserves are on deposit with major U.S. and Canadian chartered banks. We do not believe that the credit, liquidity, or
market risks with respect thereto have increased as a result of the current market conditions. However, in order to achieve greater
security for the preservation of our capital, we have, of necessity, been required to accept lower rates of interest, which has
also lowered our potential interest income.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Operating Activities</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">During the nine months ended March 31,
2025, the Company&#8217;s operating activities consumed $5.9 million of cash (2024: $5.6 million). The cash used in operating activities
for the nine months ended March 31, 2025, reflects the Company&#8217;s funding of losses of $8.0 million, increased fair value
related to the Earnout Shares and Warrant liabilities, share-based compensation, and other non-cash transactions. Overall, operational
outflows during the nine months ended March 31, 2025, decreased from the corresponding period of 2024 due to costs and expenditures
incurred in connection with the Company&#8217;s Demonstration Plant. Going forward, the Company&#8217;s working capital requirements
are expected to increase substantially in connection with the development of the Elk Creek Project.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Financing Activities</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Financing inflows were $5.2 million during
the nine months ended March 31, 2025 (2024 inflows: $3.5 million), with 2025 inflows reflecting the gross receipts of $11.0 million
from the equity offerings, $3.1 million from Common Share issuances under the Yorkville Equity Facility Financing Agreement, and
$0.4 million from warrant exercises, offset by $7.2 million of convertible debt repayments and $2.1 million of share issuance costs.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Cash Flow Considerations </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company has historically relied upon
debt and equity financings to finance its activities. Subject to the restrictions set forth in the Exchange Agreement and the April
2025 Underwriting Agreement, the Company may pursue additional debt and/or equity financing in the medium term; however, there
can be no assurance the Company will be able to obtain any required financing in the future on acceptable terms, or at all.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company has limited financial resources
compared to its proposed expenditures, no source of operating income, and no assurance that additional funding will be available
to it for current or future projects, although the Company has been successful in the past in financing its activities through
the sale of equity securities.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The ability of the Company to arrange additional
financing in the future will depend, in part, on the prevailing capital market conditions, and its success in developing the Elk
Creek Project. Any quoted market for the Common Shares may be subject to market trends generally, notwithstanding any potential
success of the Company in creating revenue, cash flows, or earnings, and any depression of the trading price of the Common Shares
could impact its ability to obtain equity financing on acceptable terms.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;Historically, the Company has used
net proceeds from issuances of Common Shares to provide sufficient funds to meet its near-term exploration and development plans
and other contractual obligations when due. However, development and construction of the Elk Creek Project will require substantial
additional capital resources. This includes near-term funding and, ultimately, funding for Elk Creek Project construction and other
costs. See &#8220;<i>Liquidity and Capital Resources</i>&#8221; above for the Company&#8217;s discussion of arrangements related
to possible future financings.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Critical Accounting Estimates </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">There have been no material changes in
our critical accounting estimates discussed in &#8220;Management&#8217;s Discussion and Analysis of Financial Condition and Results
of Operations&#8221; under the heading &#8220;Critical Accounting Estimates and Recent Accounting Pronouncements&#8221; as of June
30, 2024, in the Annual Report on Form 10-K.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>Certain U.S. Federal Income Tax Considerations</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">If NioCorp (or a subsidiary) is a PFIC
for any taxable year (or portion thereof) that is included in the holding period of a U.S. holder of Common Shares or other NioCorp
securities (as determined under applicable U.S. federal income tax law), then certain significant adverse tax consequences could
apply to such U.S. holder, including requirements to treat any gain realized upon a disposition of Common Shares (or other securities)
as ordinary income, to include certain &#8220;excess distributions&#8221; on Common Shares in income, and to pay an interest charge
on a portion of any such gain or distribution. NioCorp believes that it was classified as a PFIC during the taxable years ended
June 30, 2024 and 2023, and, based on the current composition of its income and assets, as well as current business plans and financial
expectations, that it may be classified as a PFIC for its current taxable year or in future taxable years. No opinion of legal
counsel or ruling from the Internal Revenue Service (the &#8220;IRS&#8221;) concerning the PFIC status of NioCorp or any subsidiary
has been obtained or is currently planned to be requested. The determination of whether any corporation was, or will be, a PFIC
for a taxable year depends, in part, on the application of complex U.S. federal income tax rules, which are subject to differing
interpretations. In addition, whether any corporation will be a PFIC for any taxable year depends on the assets and income of such
corporation over the course of each such taxable year and, as a result, cannot be predicted with certainty as of the date of this
Quarterly Report on Form 10-Q. In addition, even if NioCorp concluded that it or any subsidiary was not classified as a PFIC, the
IRS could challenge such determination and a court could sustain the challenge. Accordingly, there can be no assurance that NioCorp
or any subsidiary will not be classified as a PFIC for any taxable year. Each holder of Common Shares or other NioCorp securities
should consult its own tax advisors regarding the PFIC status of NioCorp and each subsidiary thereof and the resulting tax consequences
to the holder, as well as any potential to mitigate such tax consequences through a &#8220;QEF&#8221; or &#8220;mark-to-market&#8221;
election. See the &#8220;Risk Factors&#8221; section of the Annual Report on Form 10-K.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0">Other</p>

<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company has one class of shares, being
Common Shares. A summary of outstanding Common Shares, Options, and Warrants as of May 8, 2025, is set out below, on a fully diluted
basis.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 94%; border-collapse: collapse; margin-left: 0.5in">
<tr style="vertical-align: top">
    <td style="width: 74%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&#160;</td>
    <td style="border-bottom: Black 1pt solid; width: 20%; padding-right: 5.4pt; padding-left: 5.4pt">
        <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">Common Shares Outstanding</p>
        <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"></p>
        <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">(Fully Diluted)</p>
        <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"></p></td></tr>
<tr style="vertical-align: top; background-color: #CCECFF">
    <td style="padding-right: 5.4pt; padding-left: 5.4pt"><span style="font-size: 10pt">Common Shares</span></td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><span style="font-size: 10pt">55,709,163</span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td style="padding-right: 5.4pt; padding-left: 5.4pt"><span style="font-size: 10pt">Vested shares of ECRC Class B common stock (1)</span></td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><span style="font-size: 10pt">3,934,031</span></td></tr>
<tr style="vertical-align: top; background-color: #CCECFF">
    <td style="padding-right: 5.4pt; padding-left: 5.4pt"><span style="font-size: 10pt">Options (2)</span></td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><span style="font-size: 10pt">3,070,000</span></td></tr>
<tr style="vertical-align: top; background-color: white">
    <td style="padding-right: 5.4pt; padding-left: 5.4pt"><span style="font-size: 10pt">Warrants (3)</span></td>
    <td style="padding-right: 5.4pt; padding-left: 5.4pt; text-align: right"><span style="font-size: 10pt">30,115,463</span></td></tr>
</table>
<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td style="width: 0.75in; text-align: justify">&#160;</td>
    <td style="width: 0.35in; text-align: justify"><span style="font-size: 10pt">(1)</span></td>
    <td style="text-align: justify"><span style="font-size: 10pt">Each exchangeable into one Common Share at any time, and from time to time, until March 17, 2033.</span></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify">&#160;</td>
    <td style="text-align: justify"><span style="font-size: 10pt">(2)</span></td>
    <td style="text-align: justify"><span style="font-size: 10pt">Each exercisable into one Common Share.</span></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify">&#160;</td>
    <td style="text-align: justify"><span style="font-size: 10pt">(3)</span></td>
    <td style="text-align: justify"><span style="font-size: 10pt">Includes 15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares and 14,448,837 Warrants that are each exercisable into one Common Share.</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b><span id="a004"></span>ITEM 3. QUANTITATIVE AND QUALITATIVE
DISCLOSURES ABOUT MARKET RISK</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="text-decoration: underline">Interest rate risk</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company&#8217;s exposure to changes
in market interest rates relates primarily to the Company&#8217;s earned interest income on cash deposits and short-term investments.
The Company maintains a balance between the liquidity of cash assets and the interest rate return thereon. The carrying amount
of financial assets, net of any provisions for losses, represents the Company&#8217;s maximum exposure to credit risk.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="text-decoration: underline">Foreign currency exchange risk</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company incurs expenditures in both
U.S. dollars and Canadian dollars. Canadian dollar expenditures are primarily related to certain Common Share-related costs and
corporate professional services. As a result, currency exchange fluctuations may impact the costs of our operating activities.
To reduce this risk, we maintain sufficient cash balances in Canadian dollars to fund expected near-term expenditures.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="text-decoration: underline">Commodity price risk</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company is exposed to commodity price
risk related to the elements associated with the Elk Creek Project. A significant decrease in the global demand for these elements
may have a material adverse effect on our business. The Elk Creek Project is not in production, and the Company does not currently
hold any commodity derivative positions.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b><span id="a005"></span>ITEM 4. CONTROLS AND PROCEDURES </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Disclosure Controls and Procedures </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The management of NioCorp Developments
Ltd. has evaluated, under the supervision of and with the participation of our management, including the Chief Executive Office
(&#8220;CEO&#8221;) and the Chief Financial Officer (&#8220;CFO&#8221;), the effectiveness of the design and operations of our
disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of March 31, 2025. Based
on that evaluation, the CEO and the CFO have concluded that, as of March 31, 2025, our disclosure controls and procedures were
not effective due to the material weaknesses in internal control over financial reporting described below.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Notwithstanding the material weaknesses
in our internal control over financial reporting, our CEO and CFO have concluded that the interim condensed consolidated financial
statements included in this Quarterly Report on Form 10-Q fairly present, in all material respects, our financial position, results
of operations and cash flows for the periods presented in conformity with U.S. GAAP.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b><i>Material Weaknesses in Internal Control
over Financial Reporting Existing as of March 31, 2025</i></b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The management of NioCorp Developments
Ltd. is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f)
and 15d-15(f) of the Exchange Act for the Company. Management assessed the effectiveness of our internal control over financial
reporting as of March 31, 2025. In making this assessment, our management used the criteria set forth in the Internal Control -
Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the &#8220;COSO Framework&#8221;).
Based on that evaluation, the CEO and the CFO have concluded that, as of March 31, 2025, our internal control over financial reporting
was not effective due to the material weaknesses in internal control over financial reporting described below.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><i>Material Weaknesses </i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">A material weakness is a deficiency, or
a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a
material misstatement of our annual or interim consolidated financial statements will not be prevented or detected on a timely
basis.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Management concluded that the material
weaknesses disclosed in the Company&#8217;s Annual Report on Form 10-K for the fiscal year ended June 30, 2024, continued to exist
as of March 31, 2025. Specifically, management identified deficiencies in the principles associated with the control environment,
risk assessment, control activities, and monitoring components of internal control, based on the criteria established by the COSO
Framework, that constitute material weaknesses, either individually or in the aggregate.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify"><span style="text-decoration: underline">Control Environment</span>: The Company does not have sufficient personnel with the appropriate
levels of knowledge, experience, and training in accounting and internal control over financial reporting commensurate with the
complexity of the Company&#8217;s financing transactions and associated reporting requirements. This material weakness contributed
to additional material weaknesses further described below.</td></tr></table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify"><span style="text-decoration: underline">Risk Assessment</span>: The Company does not have a formal process to identify, update, and assess
financial reporting risks due to changes in the Company&#8217;s business practices, including entering into increasingly complex
transactions that could significantly impact the design and operation of the Company&#8217;s control activities.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify"><span style="text-decoration: underline">Control Activities</span>: Management did not maintain effective controls over:</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 22.5pt"/><td style="width: 13.5pt"><span style="font-family: Courier New, Courier, Monospace">o</span></td><td style="text-align: justify">monitoring and assessing the work of third-party specialists, including the evaluation of the appropriateness
of accounting conclusions, and</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 22.5pt"/><td style="width: 13.5pt"><span style="font-family: Courier New, Courier, Monospace">o</span></td><td style="text-align: justify">the evaluation of certain inputs and assumptions used to estimate the fair value of instruments
and features associated with complex debt and equity transactions.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify"><span style="text-decoration: underline">Monitoring Activities</span>: Management did not appropriately:</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 22.5pt"/><td style="width: 13.5pt"><span style="font-family: Courier New, Courier, Monospace">o</span></td><td style="text-align: justify">select, develop, and perform ongoing evaluation to ascertain whether the components of internal
controls are present and functioning, and</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 22.5pt"/><td style="width: 13.5pt"><span style="font-family: Courier New, Courier, Monospace">o</span></td><td style="text-align: justify">evaluate and communicate internal control deficiencies in a timely manner to those parties responsible
for taking corrective action.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As previously disclosed, these material
weaknesses resulted in errors that required the restatement of Company&#8217;s consolidated financial statements as of and for
the fiscal years ended June 30, 2022 and 2021, as well as the restatement of the Company&#8217;s condensed consolidated financial
statements as of and for the interim periods ended September 30, 2021, December 31, 2021, March 31, 2022, September 30, 2022, and
December 31, 2022. Additionally, these material weaknesses could result in a misstatement of the account balances or disclosures
that would result in a material misstatement to the annual or interim consolidated financial statements that would not be prevented
or timely detected.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><i>Remediation Plan for the Material Weaknesses</i></b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">To address our material weaknesses existing
as of March 31, 2025, we have implemented a detailed plan to address each individual material weakness identified, including the
following:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify">We have, and will continue, to engage outside accounting and internal control consultants with
subject matter expertise to supplement our level of knowledge, experience, and training in accounting and internal control over
financial reporting.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify">We have developed a formal risk assessment process requiring periodic review and updates of current
risks and internal controls, as well as a focus on potential future events that could result in additional risks and/or internal
control lapses. This process is expected to enable us to effectively identify, develop, evolve, and implement controls and procedures
to address risks, and results of this risk assessment process will be reviewed with the Audit Committee on a quarterly basis.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify">We have developed an initial training plan to provide incremental training to accounting and finance
personnel responsible for overall technical accounting and valuation-related transactions.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 9pt"/><td style="width: 9pt">&#9679;</td><td style="text-align: justify">Management is developing a monitoring program to periodically evaluate and assess whether those
responsible for controls are conducting their activities in accordance with their design, such that there is contemporaneous evidence
that the controls are present and functioning and will communicate internal control deficiencies in a timely manner to those parties
responsible for taking corrective action.</td></tr></table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The process of designing and maintaining
effective internal control over financial reporting is a continuous effort that requires management to anticipate and react to
changes in our business, economic and regulatory environments and to expend significant resources. As we continue to evaluate our
internal control over financial reporting, we may take additional actions to remediate the material weaknesses or modify the remediation
actions described above.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">While we continue to devote significant
time and attention to these remediation efforts, the material weaknesses will not be considered remediated until management completes
the design and implementation of the actions described above and the controls operate for a sufficient period of time, and management
has concluded, through testing, that these controls are effective.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Changes in Internal Control over Financial Reporting</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Other than as discussed above, there has
been no change in our internal control over financial reporting during the quarter ended March 31, 2025, that has materially affected,
or is reasonably likely to materially affect, our internal control over financial reporting.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b><span id="a006"></span>PART&#160;II &#8212; OTHER INFORMATION</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 217.7pt; text-indent: -217.7pt"><span id="a007"></span><b>ITEM 1. LEGAL PROCEEDINGS</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 217.7pt; text-indent: -217.7pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">We know of no material, active, or pending
legal proceedings against the Company, nor are we involved as a plaintiff in any material proceeding or pending litigation. There
are no proceedings in which any of our directors, officers, or affiliates, or any registered or beneficial shareholder, is an adverse
party or has a material interest adverse to our interest.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b><span id="a008"></span>ITEM 1A. RISK FACTORS</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">There have been no changes to the risk
factors set forth under the heading &#8220;Risk Factors&#8221; in the Annual Report on Form 10-K.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b><span id="a009"></span>ITEM 2. UNREGISTERED SALES OF EQUITY
SECURITIES AND USE OF PROCEEDS</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: #212529"><span style="background-color: white"><b>Recent
Sales of Unregistered Securities</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: #212529">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company issued and sold the following
Common Shares in reliance on Section 4(a)(2) of the Securities Act in connection with the closing of advances under the Yorkville
Equity Facility Financing Agreement and based upon representations and warranties of Yorkville in connection therewith:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 96%; margin-right: auto">
<tr style="vertical-align: bottom">
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($000s)</td><td style="padding-bottom: 1pt; font-weight: bold">&#160;</td><td style="font-weight: bold; padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 46%; text-align: left"><span style="font-size: 10pt">January 15, 2025</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left"><span style="font-size: 10pt">January 24, 2025</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">126,000</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">1.6146</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left"><span style="font-size: 10pt">March 6, 2025</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">529.1</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">250,000</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">2.1162</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left"><span style="font-size: 10pt">March 11, 2025</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">226.7</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">120,000</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">1.8880</td><td style="text-align: left">&#160;</td></tr>
</table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 217.7pt; text-indent: -217.7pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 217.7pt; text-indent: -217.7pt"><b><span id="a010"></span>ITEM 3. DEFAULTS UPON
SENIOR SECURITIES</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 217.7pt; text-indent: -217.7pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">None.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="a011"></span>ITEM 4. MINE SAFETY DISCLOSURES</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to Section 1503(a) of the Dodd-Frank
Act, issuers that are operators, or that have a subsidiary that is an operator, of a coal or other mine in the United States are
required to disclose specified information about mine health and safety in their periodic reports. These reporting requirements
are based on the safety and health requirements applicable to mines under the Federal Mine Safety and Health Act of 1977 (the &#8220;Mine
Act&#8221;) which is administered by the U.S. Department of Labor&#8217;s Mine Safety and Health Administration (&#8220;MSHA&#8221;).
During the three-month period ended March 31, 2025, the Company and its subsidiaries and their properties or operations were not
subject to regulation by MSHA under the Mine Act and thus no disclosure is required under Section 1503(a) of the Dodd-Frank Act.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><span id="a012"></span>ITEM 5. OTHER INFORMATION </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><i>Rule 10b5-1 Trading Arrangements </i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt; text-indent: -27pt"><b><span id="a013"></span>ITEM 6. EXHIBITS </b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt; text-indent: -27pt">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: bottom">
    <td style="border-bottom: black 1.5pt solid; width: 10%; padding-right: 4.3pt"><span style="font-size: 10pt">Exhibit No.</span></td>
    <td style="width: 1%; padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: black 1.5pt solid; width: 89%; padding-right: 4.3pt"><span style="font-size: 10pt">Title</span></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">3.1(1)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000114420416114498/filename2.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Notice of Articles dated April 5, 2016</span></span></a></td></tr>
<tr style="background-color: white">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">3.2(1)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000114420416114498/filename3.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Articles, as amended, effective as of January 27, 2015</span></span></a></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">3.3(2)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949723000458/exh3-1.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Amendment to Articles, effective March 17, 2023</span></span></a></td></tr>
<tr>
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">4.1(3)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725000227/exh_4-1.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Form of January 2025 Series A Warrant</span></span></a></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">4.2(3)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725000227/exh_4-2.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Form of January 2025 Series B Warrant</span></span></a></td></tr>
<tr>
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">4.3(4)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725000398/n2574_x249ex4-9.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Consent and Waiver, dated as of January 3, 2025, between NioCorp Developments Ltd. and YA II PN, Ltd.</span></span></a></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">4.4(5)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725001179/exh4-1_prefundedwarrant.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Form of April 2025 Pre-Funded Warrant</span></span></a></td></tr>
<tr>
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">10.1(3)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725000227/exh_1-1.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Underwriting Agreement, dated as of January 29, 2025, by and between NioCorp Developments Ltd. and Maxim Group LLC</span></span></a></td></tr>
<tr style="background-color: #CCECFF">
    <td style="vertical-align: top; padding-right: 4.3pt"><span style="font-size: 10pt">10.2(5)</span></td>
    <td style="vertical-align: bottom; padding-right: 4.3pt">&#160;</td>
    <td style="vertical-align: bottom; padding-right: 4.3pt"><a href="http://www.sec.gov/Archives/edgar/data/1512228/000153949725001179/exh1-1_ua.htm"><span style="font-size: 10pt"><span style="text-decoration: underline">Underwriting Agreement, dated as of April 17, 2025, by and between NioCorp Developments Ltd. and Maxim Group LLC</span></span></a></td></tr>
<tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Pursuant to the requirements of the Securities
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><b>NIOCORP DEVELOPMENTS LTD.</b></p>

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        <link:roleType roleURI="http://niocorp.com/role/AccountsPayableAndAccruedLiabilitiesTables" id="AccountsPayableAndAccruedLiabilitiesTables">
          <link:definition>999028 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/DebtTables" id="DebtTables">
          <link:definition>999029 - Disclosure - DEBT (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ClassBCommonStockOfEcrcTables" id="ClassBCommonStockOfEcrcTables">
          <link:definition>999030 - Disclosure - CLASS B COMMON STOCK OF ECRC (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/CommonSharesTables" id="CommonSharesTables">
          <link:definition>999031 - Disclosure - COMMON SHARES (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ExplorationExpendituresTables" id="ExplorationExpendituresTables">
          <link:definition>999032 - Disclosure - Exploration Expenditures (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/LeasesTables" id="LeasesTables">
          <link:definition>999033 - Disclosure - Leases (Tables)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
          <link:definition>999034 - Disclosure - Fair Value Measurements (Tables)</link:definition>
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          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/DescriptionOfBusinessDetailsNarrative" id="DescriptionOfBusinessDetailsNarrative">
          <link:definition>999035 - Disclosure - DESCRIPTION OF BUSINESS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/FollowingTableSetsForthComputationOfCompanysBasicAndDilutedNetLossPerShareAttributableToCommonShareholdersDetails" id="FollowingTableSetsForthComputationOfCompanysBasicAndDilutedNetLossPerShareAttributableToCommonShareholdersDetails">
          <link:definition>999036 - Disclosure - The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share attributable to common shareholders: (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfExcludedFromDilutiveSecuritiesDetails" id="ScheduleOfExcludedFromDilutiveSecuritiesDetails">
          <link:definition>999037 - Disclosure - Schedule of excluded from the dilutive securities (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/BasisOfPresentationDetailsNarrative" id="BasisOfPresentationDetailsNarrative">
          <link:definition>999038 - Disclosure - BASIS OF PRESENTATION (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/GoingConcernDetailsNarrative" id="GoingConcernDetailsNarrative">
          <link:definition>999039 - Disclosure - GOING CONCERN (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfAccountPayableAndAccruedLiabilitiesDetails" id="ScheduleOfAccountPayableAndAccruedLiabilitiesDetails">
          <link:definition>999040 - Disclosure - Schedule of account payable and accrued liabilities: (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ChangeInConvertibleDebenturesIsPresentedBelowDetails" id="ChangeInConvertibleDebenturesIsPresentedBelowDetails">
          <link:definition>999041 - Disclosure - The change in the Convertible Debentures is presented below (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/FollowingTableDisclosesComponentsOfInterestExpenseAssociatedWithConvertibleDebenturesDetails" id="FollowingTableDisclosesComponentsOfInterestExpenseAssociatedWithConvertibleDebenturesDetails">
          <link:definition>999042 - Disclosure - The following table discloses the components of interest expense associated with the Convertible Debentures (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ChangesInApril2024NotesAndApril2024WarrantLiabilityArePresentedBelowRespectivelyDetails" id="ChangesInApril2024NotesAndApril2024WarrantLiabilityArePresentedBelowRespectivelyDetails">
          <link:definition>999043 - Disclosure - The changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfChangeInApril2024WarrantLiabilityDetails" id="ScheduleOfChangeInApril2024WarrantLiabilityDetails">
          <link:definition>999044 - Disclosure - Schedule of change in the April 2024 Warrant liability (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/DebtDetailsNarrative" id="DebtDetailsNarrative">
          <link:definition>999045 - Disclosure - DEBT (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/EarnoutSharesWereValuedUtilizingMonteCarloSimulationPricingModelWithFollowingPrimaryInputsDetails" id="EarnoutSharesWereValuedUtilizingMonteCarloSimulationPricingModelWithFollowingPrimaryInputsDetails">
          <link:definition>999046 - Disclosure - The Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/FollowingTableSetsForthSummaryOfChangesInFairValueOfEarnoutSharesLiabilityForNine-monthPeriodEndedMarch312025Details" id="FollowingTableSetsForthSummaryOfChangesInFairValueOfEarnoutSharesLiabilityForNine-monthPeriodEndedMarch312025Details">
          <link:definition>999047 - Disclosure - The following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period ended March 31, 2025 (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ClassBCommonStockOfEcrcDetailsNarrative" id="ClassBCommonStockOfEcrcDetailsNarrative">
          <link:definition>999048 - Disclosure - CLASS B COMMON STOCK OF ECRC (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfBlack-scholesModelUsedInValuingNovemberPublicWarrantsAndNovemberPrivateWarrantsDetails" id="ScheduleOfBlack-scholesModelUsedInValuingNovemberPublicWarrantsAndNovemberPrivateWarrantsDetails">
          <link:definition>999049 - Disclosure - Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/FollowingTableSetsForthSummaryOfChangesInFairValueOfNovemberPrivateWarrantsLiabilitiesDetails" id="FollowingTableSetsForthSummaryOfChangesInFairValueOfNovemberPrivateWarrantsLiabilitiesDetails">
          <link:definition>999050 - Disclosure - The following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/FollowingPrimaryInputsWereUsedInBlack-scholesModelForValuingJanuary2025WarrantsDetails" id="FollowingPrimaryInputsWereUsedInBlack-scholesModelForValuingJanuary2025WarrantsDetails">
          <link:definition>999051 - Disclosure - The following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/CompanyIssuedFollowingCommonSharesUnderYorkvilleEquityFacilityFinancingAgreementDuringNineMonthsPeriodDetails" id="CompanyIssuedFollowingCommonSharesUnderYorkvilleEquityFacilityFinancingAgreementDuringNineMonthsPeriodDetails">
          <link:definition>999052 - Disclosure - The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period: (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfStockOptionDetails" id="ScheduleOfStockOptionDetails">
          <link:definition>999053 - Disclosure - Schedule Of Stock Option (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfWarrantTransactionsDetails" id="ScheduleOfWarrantTransactionsDetails">
          <link:definition>999054 - Disclosure - Schedule of warrant transactions (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/AsOfMarch312025CompanyHadOutstandingExercisableWarrantsAsFollowsDetails" id="AsOfMarch312025CompanyHadOutstandingExercisableWarrantsAsFollowsDetails">
          <link:definition>999055 - Disclosure - As of March 31, 2025, the Company had outstanding exercisable Warrants, as follows (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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          <link:definition>999056 - Disclosure - The following observable data points were used in calculating the fair value of the Private Warrants using a Black-Scholes pricing model (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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          <link:definition>999057 - Disclosure - The change in the Private Warrants liability is presented below (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/CompanyValuedContingentConsentWarrantsAt2262BasedOnBlack-scholesValuationWithFollowingInputsDetails" id="CompanyValuedContingentConsentWarrantsAt2262BasedOnBlack-scholesValuationWithFollowingInputsDetails">
          <link:definition>999058 - Disclosure - The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs: (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
        </link:roleType>
        <link:roleType roleURI="http://niocorp.com/role/CommonSharesDetailsNarrative" id="CommonSharesDetailsNarrative">
          <link:definition>999059 - Disclosure - COMMON SHARES (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/RelatedPartyTransactionsDetailsNarrative" id="RelatedPartyTransactionsDetailsNarrative">
          <link:definition>999060 - Disclosure - RELATED PARTY TRANSACTIONS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfExplorationExpendituresDetails" id="ScheduleOfExplorationExpendituresDetails">
          <link:definition>999061 - Disclosure - Schedule of exploration expenditures (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/CompanyIncurredLeaseCostsAsFollowsDetails" id="CompanyIncurredLeaseCostsAsFollowsDetails">
          <link:definition>999062 - Disclosure - The Company incurred lease costs as follows (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/MaturitiesOfLeaseLiabilitiesAreAsFollowsAsOfMarch312025Details" id="MaturitiesOfLeaseLiabilitiesAreAsFollowsAsOfMarch312025Details">
          <link:definition>999063 - Disclosure - The maturities of lease liabilities are as follows as of March 31, 2025 (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/ScheduleOfFairValuesDeterminedByLevel3InputsAreUnobservableDataDetails" id="ScheduleOfFairValuesDeterminedByLevel3InputsAreUnobservableDataDetails">
          <link:definition>999064 - Disclosure - Schedule of fair values determined by level 3 inputs are unobservable data (Details)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/CybersecurityIncidentDetailsNarrative" id="CybersecurityIncidentDetailsNarrative">
          <link:definition>999065 - Disclosure - CYBERSECURITY INCIDENT (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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        <link:roleType roleURI="http://niocorp.com/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
          <link:definition>999066 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)</link:definition>
          <link:usedOn>link:presentationLink</link:usedOn>
          <link:usedOn>link:calculationLink</link:usedOn>
          <link:usedOn>link:definitionLink</link:usedOn>
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    <element id="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" name="StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
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    <element id="niobf_StockIssuedDuringPeriodValueEquityPlacement" name="StockIssuedDuringPeriodValueEquityPlacement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement" name="StockIssuedDuringPeriodValueSharesEquityPlacement" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised" name="StockIssuedDuringPeriodValueStockWarrantsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="niobf_CommonShareMember" name="CommonShareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>3
<FILENAME>niobf-20250331_cal.xml
<DESCRIPTION>XBRL CALCULATION FILE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
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    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
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    <link:roleRef roleURI="http://niocorp.com/role/StatementsOfShareholdersEquityDeficitAndRedeemableNoncontrollingInterest" xlink:href="niobf-20250331.xsd#StatementsOfShareholdersEquityDeficitAndRedeemableNoncontrollingInterest" xlink:type="simple" />
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    <link:roleRef roleURI="http://niocorp.com/role/MineralProperties" xlink:href="niobf-20250331.xsd#MineralProperties" xlink:type="simple" />
    <link:roleRef roleURI="http://niocorp.com/role/AccountsPayableAndAccruedLiabilities" xlink:href="niobf-20250331.xsd#AccountsPayableAndAccruedLiabilities" xlink:type="simple" />
    <link:roleRef roleURI="http://niocorp.com/role/Debt" xlink:href="niobf-20250331.xsd#Debt" xlink:type="simple" />
    <link:roleRef roleURI="http://niocorp.com/role/ClassBCommonStockOfEcrc" xlink:href="niobf-20250331.xsd#ClassBCommonStockOfEcrc" xlink:type="simple" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US">Warrant [Member]</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesBPublicWarrantsMember" xlink:to="niobf_SeriesBPublicWarrantsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_SeriesBPublicWarrantsMember_lbl" xml:lang="en-US">Series B Public Warrants [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_SeriesAPrivateWarrantsMember" xlink:label="niobf_SeriesAPrivateWarrantsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesAPrivateWarrantsMember" xlink:to="niobf_SeriesAPrivateWarrantsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_SeriesAPrivateWarrantsMember_lbl" xml:lang="en-US">Series A Private Warrants [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_SeriesBPrivateWarrantsMember" xlink:label="niobf_SeriesBPrivateWarrantsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesBPrivateWarrantsMember" xlink:to="niobf_SeriesBPrivateWarrantsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_SeriesBPrivateWarrantsMember_lbl" xml:lang="en-US">Series B Private Warrants [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_NovemberPrivateWarrantsliabilitiesMember" xlink:label="niobf_NovemberPrivateWarrantsliabilitiesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NovemberPrivateWarrantsliabilitiesMember" xlink:to="niobf_NovemberPrivateWarrantsliabilitiesMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_NovemberPrivateWarrantsliabilitiesMember_lbl" xml:lang="en-US">November Private Warrantsliabilities [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_lbl" xml:lang="en-US">Exercise Price Range [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice4.60Member" xlink:label="niobf_ExercisePrice4.60Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice4.60Member" xlink:to="niobf_ExercisePrice4.60Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice4.60Member_lbl" xml:lang="en-US">Exercise Price 4.60 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice3.54Member" xlink:label="niobf_ExercisePrice3.54Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice3.54Member" xlink:to="niobf_ExercisePrice3.54Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice3.54Member_lbl" xml:lang="en-US">Exercise Price 3.54 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice2.20Member" xlink:label="niobf_ExercisePrice2.20Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.20Member" xlink:to="niobf_ExercisePrice2.20Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice2.20Member_lbl" xml:lang="en-US">Exercise Price 2.20 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice1.75Member" xlink:label="niobf_ExercisePrice1.75Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice1.75Member" xlink:to="niobf_ExercisePrice1.75Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice1.75Member_lbl" xml:lang="en-US">Exercise Price 1.75 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice01.75Member" xlink:label="niobf_ExercisePrice01.75Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice01.75Member" xlink:to="niobf_ExercisePrice01.75Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice01.75Member_lbl" xml:lang="en-US">Exercise Price 01.75 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice3.25Member" xlink:label="niobf_ExercisePrice3.25Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice3.25Member" xlink:to="niobf_ExercisePrice3.25Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice3.25Member_lbl" xml:lang="en-US">Exercise Price 3.25 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice1.98Member" xlink:label="niobf_ExercisePrice1.98Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice1.98Member" xlink:to="niobf_ExercisePrice1.98Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice1.98Member_lbl" xml:lang="en-US">Exercise Price 1.98 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice11.50Member" xlink:label="niobf_ExercisePrice11.50Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice11.50Member" xlink:to="niobf_ExercisePrice11.50Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice11.50Member_lbl" xml:lang="en-US">Exercise Price 11.50 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice2.31Member" xlink:label="niobf_ExercisePrice2.31Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.31Member" xlink:to="niobf_ExercisePrice2.31Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice2.31Member_lbl" xml:lang="en-US">Exercise Price 2.31 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice2.05Member" xlink:label="niobf_ExercisePrice2.05Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.05Member" xlink:to="niobf_ExercisePrice2.05Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice2.05Member_lbl" xml:lang="en-US">Exercise Price 2.05 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice2.07Member" xlink:label="niobf_ExercisePrice2.07Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.07Member" xlink:to="niobf_ExercisePrice2.07Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice2.07Member_lbl" xml:lang="en-US">Exercise Price 2.07 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice02.07Member" xlink:label="niobf_ExercisePrice02.07Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice02.07Member" xlink:to="niobf_ExercisePrice02.07Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExercisePrice02.07Member_lbl" xml:lang="en-US">Exercise Price 02.07 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="us-gaap_FairValueInputsLevel2Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoteWarrantMember" xlink:label="us-gaap_NoteWarrantMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoteWarrantMember" xlink:to="us-gaap_NoteWarrantMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoteWarrantMember_lbl" xml:lang="en-US">Note Warrant [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_BlackScholesValuationMember" xlink:label="niobf_BlackScholesValuationMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_BlackScholesValuationMember" xlink:to="niobf_BlackScholesValuationMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_BlackScholesValuationMember_lbl" xml:lang="en-US">Black Scholes Valuation [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_NonRevolvingCreditFacilityAgreementMember" xlink:label="niobf_NonRevolvingCreditFacilityAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NonRevolvingCreditFacilityAgreementMember" xlink:to="niobf_NonRevolvingCreditFacilityAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_NonRevolvingCreditFacilityAgreementMember_lbl" xml:lang="en-US">Non Revolving Credit Facility Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xml:lang="en-US">Related and Nonrelated Parties [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ChiefExecutiveOfficerMember" xlink:label="srt_ChiefExecutiveOfficerMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xml:lang="en-US">Chief Executive Officer [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_GeneralSecurityAgreementMember" xlink:label="niobf_GeneralSecurityAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_GeneralSecurityAgreementMember" xlink:to="niobf_GeneralSecurityAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_GeneralSecurityAgreementMember_lbl" xml:lang="en-US">General Security Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="us-gaap_FairValueByLiabilityClassAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByLiabilityClassAxis" xlink:to="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xml:lang="en-US">Liability Class [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BorrowingsMember" xlink:label="us-gaap_BorrowingsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BorrowingsMember" xlink:to="us-gaap_BorrowingsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BorrowingsMember_lbl" xml:lang="en-US">Borrowings [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_CostCentreAxis" xlink:label="niobf_CostCentreAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CostCentreAxis" xlink:to="niobf_CostCentreAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_CostCentreAxis_lbl" xml:lang="en-US">Cost Centre [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_TechnicalStudiesAndEngineeringMember" xlink:label="niobf_TechnicalStudiesAndEngineeringMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_TechnicalStudiesAndEngineeringMember" xlink:to="niobf_TechnicalStudiesAndEngineeringMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_TechnicalStudiesAndEngineeringMember_lbl" xml:lang="en-US">Technical Studies And Engineering [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_FieldmanagementandotherMember" xlink:label="niobf_FieldmanagementandotherMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FieldmanagementandotherMember" xlink:to="niobf_FieldmanagementandotherMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_FieldmanagementandotherMember_lbl" xml:lang="en-US">Field management and other [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_MetallurgicaldevelopmentMember" xlink:label="niobf_MetallurgicaldevelopmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_MetallurgicaldevelopmentMember" xlink:to="niobf_MetallurgicaldevelopmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_MetallurgicaldevelopmentMember_lbl" xml:lang="en-US">Metallurgical development [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_GeologistAndFieldStaffMember" xlink:label="niobf_GeologistAndFieldStaffMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_GeologistAndFieldStaffMember" xlink:to="niobf_GeologistAndFieldStaffMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_GeologistAndFieldStaffMember_lbl" xml:lang="en-US">Geologist And Field Staff [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="us-gaap_FairValueInputsLevel1Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="us-gaap_FairValueInputsLevel3Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember" xlink:label="us-gaap_SubsequentEventMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US">Subsequent Event [Member]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentType_lbl" xml:lang="en-US">Document Type</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAnnualReport_lbl" xml:lang="en-US">Document Annual Report</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodStartDate_lbl" xml:lang="en-US">Document Period Start Date</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFileNumber_lbl" xml:lang="en-US">Entity File Number</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US">Entity Registrant Name</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPrimarySicNumber_lbl" xml:lang="en-US">Entity Primary SIC Number</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xml:lang="en-US">Entity Tax Identification Number</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AnnualInformationForm_lbl" xml:lang="en-US">Annual Information Form</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditedAnnualFinancialStatements_lbl" xml:lang="en-US">Audited Annual Financial Statements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="dei_EntityVoluntaryFilers_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US">Entity Voluntary Filers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US">Entity Filer Category</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US">Entity Small Business</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod" xlink:label="dei_EntityExTransitionPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityExTransitionPeriod_lbl" xml:lang="en-US">Elected Not To Use the Extended Transition Period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAccountingStandard" xlink:label="dei_DocumentAccountingStandard" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAccountingStandard" xlink:to="dei_DocumentAccountingStandard_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAccountingStandard_lbl" xml:lang="en-US">Document Accounting Standard</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_OtherReportingStandardItemNumber" xlink:label="dei_OtherReportingStandardItemNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_OtherReportingStandardItemNumber" xlink:to="dei_OtherReportingStandardItemNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_OtherReportingStandardItemNumber_lbl" xml:lang="en-US">Other Reporting Standard Item Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US">Entity Shell Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="dei_EntityPublicFloat_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPublicFloat_lbl" xml:lang="en-US">Entity Public Float</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityBankruptcyProceedingsReportingCurrent" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityBankruptcyProceedingsReportingCurrent" xlink:to="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xml:lang="en-US">Entity Bankruptcy Proceedings, Reporting Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US">Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xml:lang="en-US">Accounts payable and accrued liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="us-gaap_OtherLiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesCurrent" xlink:to="us-gaap_OtherLiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xml:lang="en-US">Warrant liabilities, at fair value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebtNoncurrent" xlink:label="us-gaap_ConvertibleDebtNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtNoncurrent" xlink:to="us-gaap_ConvertibleDebtNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebtNoncurrent_lbl" xml:lang="en-US">Convertible debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xml:lang="en-US">Operating lease liability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US">Total current liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsNoncurrentAbstract" xlink:label="us-gaap_AssetsNoncurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsNoncurrentAbstract" xlink:to="us-gaap_AssetsNoncurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AssetsNoncurrentAbstract_lbl" xml:lang="en-US">Non-current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xml:lang="en-US">Warrant liabilities, at fair value</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_EarnoutLiabilityAtFairValue" xlink:label="niobf_EarnoutLiabilityAtFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarnoutLiabilityAtFairValue" xlink:to="niobf_EarnoutLiabilityAtFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_EarnoutLiabilityAtFairValue_lbl" xml:lang="en-US">Earnout liability, at fair value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xml:lang="en-US">Operating lease liability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Total liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US">Commitments and contingencies</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:label="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount" xlink:to="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_lbl" xml:lang="en-US">Redeemable noncontrolling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US">SHAREHOLDERS&#8217; EQUITY</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common stock, no par value, unlimited shares authorized; 47,188,119 and 38,062,647 shares outstanding, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Accumulated deficit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US">Total shareholders&#8217; equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US">Total liabilities, redeemable noncontrolling interest, and shareholders&#8217; equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesAuthorizedUnlimited" xlink:label="us-gaap_CommonStockSharesAuthorizedUnlimited" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorizedUnlimited" xlink:to="us-gaap_CommonStockSharesAuthorizedUnlimited_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorizedUnlimited_lbl" xml:lang="en-US">Common stock, authorized</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US">Common stock, shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US">Income Statement [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US">Operating expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="us-gaap_LaborAndRelatedExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LaborAndRelatedExpense" xlink:to="us-gaap_LaborAndRelatedExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LaborAndRelatedExpense_lbl" xml:lang="en-US">Employee related costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfessionalFees" xlink:label="us-gaap_ProfessionalFees" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfessionalFees" xlink:to="us-gaap_ProfessionalFees_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfessionalFees_lbl" xml:lang="en-US">Professional fees</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExplorationExpenditures" xlink:label="niobf_ExplorationExpenditures" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExplorationExpenditures" xlink:to="niobf_ExplorationExpenditures_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExplorationExpenditures_lbl" xml:lang="en-US">Exploration expenditures</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherGeneralExpense" xlink:label="us-gaap_OtherGeneralExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherGeneralExpense" xlink:to="us-gaap_OtherGeneralExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherGeneralExpense_lbl" xml:lang="en-US">Other operating expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US">Total operating expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfEarnoutSharesLiability" xlink:label="niobf_ChangeInFairValueOfEarnoutSharesLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfEarnoutSharesLiability" xlink:to="niobf_ChangeInFairValueOfEarnoutSharesLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="niobf_ChangeInFairValueOfEarnoutSharesLiability_lbl" xml:lang="en-US">Change in fair value of earnout shares liability</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfWarrantLiability" xlink:label="niobf_ChangeInFairValueOfWarrantLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfWarrantLiability" xlink:to="niobf_ChangeInFairValueOfWarrantLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValueOfWarrantLiability_lbl" xml:lang="en-US">Change in fair value of warrant liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfConvertibleNotes" xlink:label="niobf_ChangeInFairValueOfConvertibleNotes" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfConvertibleNotes" xlink:to="niobf_ChangeInFairValueOfConvertibleNotes_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="niobf_ChangeInFairValueOfConvertibleNotes_lbl" xml:lang="en-US">Change in fair value of convertible notes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseNonoperating" xlink:label="us-gaap_InterestExpenseNonoperating" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseNonoperating" xlink:to="us-gaap_InterestExpenseNonoperating_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InterestExpenseNonoperating_lbl" xml:lang="en-US">Interest expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_lbl" xml:lang="en-US">Foreign exchange (gain) loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherIncome" xlink:label="us-gaap_OtherIncome" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncome" xlink:to="us-gaap_OtherIncome_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US">Other gains</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_lbl" xml:lang="en-US">Loss on equity securities</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1" xlink:label="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1" xlink:to="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_lbl" xml:lang="en-US">Loss before income taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Income tax benefit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Net loss and comprehensive loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Less: Net loss attributable to redeemable noncontrolling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OciEquityMethodInvestmentBeforeTaxParent" xlink:label="us-gaap_OciEquityMethodInvestmentBeforeTaxParent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OciEquityMethodInvestmentBeforeTaxParent" xlink:to="us-gaap_OciEquityMethodInvestmentBeforeTaxParent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OciEquityMethodInvestmentBeforeTaxParent_lbl" xml:lang="en-US">Net loss and comprehensive loss attributable to the Company</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_EarningsLossPerShareBasicAndDiluted" xlink:label="niobf_EarningsLossPerShareBasicAndDiluted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarningsLossPerShareBasicAndDiluted" xlink:to="niobf_EarningsLossPerShareBasicAndDiluted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_EarningsLossPerShareBasicAndDiluted_lbl" xml:lang="en-US">Loss per common share, basic and diluted</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US">Weighted average common shares outstanding, basic and diluted</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">CASH FLOWS FROM OPERATING ACTIVITIES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss" xlink:label="us-gaap_ProfitLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfitLoss_lbl" xml:lang="en-US">Net loss for the period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments for:</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfEarnoutShareLiability" xlink:label="niobf_ChangeInFairValueOfEarnoutShareLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfEarnoutShareLiability" xlink:to="niobf_ChangeInFairValueOfEarnoutShareLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValueOfEarnoutShareLiability_lbl" xml:lang="en-US">Change in valuation of earnout shares liability</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInValuationOfWarrantLiabilities" xlink:label="niobf_ChangeInValuationOfWarrantLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInValuationOfWarrantLiabilities" xlink:to="niobf_ChangeInValuationOfWarrantLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInValuationOfWarrantLiabilities_lbl" xml:lang="en-US">Change in valuation of warrant liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_OtheroperatingGainsLosses" xlink:label="niobf_OtheroperatingGainsLosses" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_OtheroperatingGainsLosses" xlink:to="niobf_OtheroperatingGainsLosses_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="niobf_OtheroperatingGainsLosses_lbl" xml:lang="en-US">Other gain</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeBenefitsAndShareBasedCompensation" xlink:label="us-gaap_EmployeeBenefitsAndShareBasedCompensation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeBenefitsAndShareBasedCompensation" xlink:to="us-gaap_EmployeeBenefitsAndShareBasedCompensation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeBenefitsAndShareBasedCompensation_lbl" xml:lang="en-US">Share based compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="us-gaap_FairValueAdjustmentOfWarrants" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAdjustmentOfWarrants" xlink:to="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xml:lang="en-US">Fair value of private placement warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccretionExpense" xlink:label="us-gaap_AccretionExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccretionExpense" xlink:to="us-gaap_AccretionExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccretionExpense_lbl" xml:lang="en-US">Accretion of convertible debt</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfConvertibleNote" xlink:label="niobf_ChangeInFairValueOfConvertibleNote" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfConvertibleNote" xlink:to="niobf_ChangeInFairValueOfConvertibleNote_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValueOfConvertibleNote_lbl" xml:lang="en-US">Change in fair value of convertible note</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_FairValueOfCommitmentSharesIssued" xlink:label="niobf_FairValueOfCommitmentSharesIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueOfCommitmentSharesIssued" xlink:to="niobf_FairValueOfCommitmentSharesIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_FairValueOfCommitmentSharesIssued_lbl" xml:lang="en-US">Yorkville share issuances</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Depreciation" xlink:label="us-gaap_Depreciation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="us-gaap_Depreciation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US">Depreciation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnrealizedGainLossOnInvestments" xlink:label="us-gaap_UnrealizedGainLossOnInvestments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrealizedGainLossOnInvestments" xlink:to="us-gaap_UnrealizedGainLossOnInvestments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_lbl" xml:lang="en-US">Unrealized loss on equity securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseImpairmentLoss" xlink:label="us-gaap_OperatingLeaseImpairmentLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseImpairmentLoss" xlink:to="us-gaap_OperatingLeaseImpairmentLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseImpairmentLoss_lbl" xml:lang="en-US">Non-cash lease activity</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" xlink:label="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" xlink:to="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">&#160;</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US">Change in working capital items:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:to="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_lbl" xml:lang="en-US">Prepaid expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US">Accounts payable and accrued liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Net cash used in operating activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">CASH FLOWS FROM INVESTING ACTIVITIES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireOtherInvestments" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireOtherInvestments" xlink:to="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_lbl" xml:lang="en-US">Acquisition of land and buildings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US">Net cash used in investing activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">CASH FLOWS FROM FINANCING ACTIVITIES</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US">Proceeds from issuance of capital stock</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromRelatedPartyDebt" xlink:to="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromRelatedPartyDebt_lbl" xml:lang="en-US">Related party debt draws</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfRelatedPartyDebt" xlink:to="us-gaap_RepaymentsOfRelatedPartyDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt_lbl" xml:lang="en-US">Related party debt repayments</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="us-gaap_RepaymentsOfConvertibleDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfConvertibleDebt" xlink:to="us-gaap_RepaymentsOfConvertibleDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_lbl" xml:lang="en-US">Convertible debt repayments</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_PaymentsOfStockIssuanceCost" xlink:label="niobf_PaymentsOfStockIssuanceCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PaymentsOfStockIssuanceCost" xlink:to="niobf_PaymentsOfStockIssuanceCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_PaymentsOfStockIssuanceCost_lbl" xml:lang="en-US">Share issue costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US">Net cash provided by financing activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xml:lang="en-US">Change in cash and cash equivalents during period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US">Cash and cash equivalents, beginning of period</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_2_lbl" xml:lang="en-US">Cash and cash equivalents, end of period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US">Supplemental cash flow information:</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ConversionsOfDebtForCommonShares" xlink:label="niobf_ConversionsOfDebtForCommonShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ConversionsOfDebtForCommonShares" xlink:to="niobf_ConversionsOfDebtForCommonShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ConversionsOfDebtForCommonShares_lbl" xml:lang="en-US">Conversion of debt for common shares</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ValueOfWarrantsIssued" xlink:label="niobf_ValueOfWarrantsIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ValueOfWarrantsIssued" xlink:to="niobf_ValueOfWarrantsIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ValueOfWarrantsIssued_lbl" xml:lang="en-US">Value of warrants issued</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US">Interest paid</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Beginning balance, value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_2_lbl" xml:lang="en-US">Beginning balance (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws" xlink:label="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws" xlink:to="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_lbl" xml:lang="en-US">Yorkville equity facility draws</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" xlink:label="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" xlink:to="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws_lbl" xml:lang="en-US">Yorkville equity facility draws (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments_lbl" xml:lang="en-US">Debt conversions</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:label="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:to="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments_lbl" xml:lang="en-US">Debt conversions (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US">Share issuance costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueStockDividend" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockDividend" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockDividend" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockDividend_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockDividend_lbl" xml:lang="en-US">Option liability valuations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xml:lang="en-US">Exchange of Class B shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xml:lang="en-US">Exchange of Class B shares (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_lbl" xml:lang="en-US">Share-based compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US">Loss for the period</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueEquityPlacement" xlink:label="niobf_StockIssuedDuringPeriodValueEquityPlacement" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueEquityPlacement" xlink:to="niobf_StockIssuedDuringPeriodValueEquityPlacement_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueEquityPlacement_lbl" xml:lang="en-US">Equity placements</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueSharesEquityPlacement" xlink:label="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement" xlink:to="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement_lbl" xml:lang="en-US">Equity placement (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueStockWarrantsExercised" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised" xlink:to="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xml:lang="en-US">Warrant exercises</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised" xlink:label="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised" xlink:to="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised_lbl" xml:lang="en-US">Warrant exercises (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xml:lang="en-US">Option exercises</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US">Option exercises (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares" xlink:label="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares" xlink:to="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares_lbl" xml:lang="en-US">Redemptions of vested shares</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares" xlink:label="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares" xlink:to="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares_lbl" xml:lang="en-US">Redemptions of vested shares (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueStockWarrantsIssued" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued" xlink:to="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued_lbl" xml:lang="en-US">Issuance of warrants</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Ending balance, value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_3_lbl" xml:lang="en-US">Ending balance (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PvpTable" xlink:label="ecd_PvpTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PvpTable" xlink:to="ecd_PvpTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PvpTable_lbl" xml:lang="en-US">Pay vs Performance Disclosure [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ExecutiveCategoryAxis" xlink:label="ecd_ExecutiveCategoryAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ExecutiveCategoryAxis" xlink:to="ecd_ExecutiveCategoryAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ExecutiveCategoryAxis_lbl" xml:lang="en-US">Executive Category [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_IndividualAxis" xlink:label="ecd_IndividualAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_IndividualAxis" xlink:to="ecd_IndividualAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_IndividualAxis_lbl" xml:lang="en-US">Individual [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AdjToCompAxis" xlink:label="ecd_AdjToCompAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AdjToCompAxis" xlink:to="ecd_AdjToCompAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AdjToCompAxis_lbl" xml:lang="en-US">Adjustment to Compensation [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_MeasureAxis" xlink:label="ecd_MeasureAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_MeasureAxis" xlink:to="ecd_MeasureAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_MeasureAxis_lbl" xml:lang="en-US">Measure [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PvpTableTextBlock" xlink:label="ecd_PvpTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PvpTableTextBlock" xlink:to="ecd_PvpTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PvpTableTextBlock_lbl" xml:lang="en-US">Pay vs Performance Disclosure, Table</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CoSelectedMeasureName" xlink:label="ecd_CoSelectedMeasureName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CoSelectedMeasureName" xlink:to="ecd_CoSelectedMeasureName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CoSelectedMeasureName_lbl" xml:lang="en-US">Company Selected Measure Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_NamedExecutiveOfficersFnTextBlock" xlink:label="ecd_NamedExecutiveOfficersFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_NamedExecutiveOfficersFnTextBlock" xlink:to="ecd_NamedExecutiveOfficersFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_NamedExecutiveOfficersFnTextBlock_lbl" xml:lang="en-US">Named Executive Officers, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PeerGroupIssuersFnTextBlock" xlink:label="ecd_PeerGroupIssuersFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PeerGroupIssuersFnTextBlock" xlink:to="ecd_PeerGroupIssuersFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PeerGroupIssuersFnTextBlock_lbl" xml:lang="en-US">Peer Group Issuers, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ChangedPeerGroupFnTextBlock" xlink:label="ecd_ChangedPeerGroupFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ChangedPeerGroupFnTextBlock" xlink:to="ecd_ChangedPeerGroupFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ChangedPeerGroupFnTextBlock_lbl" xml:lang="en-US">Changed Peer Group, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PeoTotalCompAmt" xlink:label="ecd_PeoTotalCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PeoTotalCompAmt" xlink:to="ecd_PeoTotalCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PeoTotalCompAmt_lbl" xml:lang="en-US">PEO Total Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PeoActuallyPaidCompAmt" xlink:label="ecd_PeoActuallyPaidCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PeoActuallyPaidCompAmt" xlink:to="ecd_PeoActuallyPaidCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PeoActuallyPaidCompAmt_lbl" xml:lang="en-US">PEO Actually Paid Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AdjToPeoCompFnTextBlock" xlink:label="ecd_AdjToPeoCompFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AdjToPeoCompFnTextBlock" xlink:to="ecd_AdjToPeoCompFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AdjToPeoCompFnTextBlock_lbl" xml:lang="en-US">Adjustment To PEO Compensation, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_NonPeoNeoAvgTotalCompAmt" xlink:label="ecd_NonPeoNeoAvgTotalCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_NonPeoNeoAvgTotalCompAmt" xlink:to="ecd_NonPeoNeoAvgTotalCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_NonPeoNeoAvgTotalCompAmt_lbl" xml:lang="en-US">Non-PEO NEO Average Total Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:label="ecd_NonPeoNeoAvgCompActuallyPaidAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_NonPeoNeoAvgCompActuallyPaidAmt" xlink:to="ecd_NonPeoNeoAvgCompActuallyPaidAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_NonPeoNeoAvgCompActuallyPaidAmt_lbl" xml:lang="en-US">Non-PEO NEO Average Compensation Actually Paid Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:label="ecd_AdjToNonPeoNeoCompFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AdjToNonPeoNeoCompFnTextBlock" xlink:to="ecd_AdjToNonPeoNeoCompFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AdjToNonPeoNeoCompFnTextBlock_lbl" xml:lang="en-US">Adjustment to Non-PEO NEO Compensation Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:label="ecd_EquityValuationAssumptionDifferenceFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_EquityValuationAssumptionDifferenceFnTextBlock" xlink:to="ecd_EquityValuationAssumptionDifferenceFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_EquityValuationAssumptionDifferenceFnTextBlock_lbl" xml:lang="en-US">Equity Valuation Assumption Difference, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:label="ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock" xlink:to="ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock_lbl" xml:lang="en-US">Compensation Actually Paid vs. Total Shareholder Return</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:label="ecd_CompActuallyPaidVsNetIncomeTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CompActuallyPaidVsNetIncomeTextBlock" xlink:to="ecd_CompActuallyPaidVsNetIncomeTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CompActuallyPaidVsNetIncomeTextBlock_lbl" xml:lang="en-US">Compensation Actually Paid vs. Net Income</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:label="ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock" xlink:to="ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock_lbl" xml:lang="en-US">Compensation Actually Paid vs. Company Selected Measure</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:label="ecd_TotalShareholderRtnVsPeerGroupTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TotalShareholderRtnVsPeerGroupTextBlock" xlink:to="ecd_TotalShareholderRtnVsPeerGroupTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TotalShareholderRtnVsPeerGroupTextBlock_lbl" xml:lang="en-US">Total Shareholder Return Vs Peer Group</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:label="ecd_CompActuallyPaidVsOtherMeasureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CompActuallyPaidVsOtherMeasureTextBlock" xlink:to="ecd_CompActuallyPaidVsOtherMeasureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CompActuallyPaidVsOtherMeasureTextBlock_lbl" xml:lang="en-US">Compensation Actually Paid vs. Other Measure</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_TabularListTableTextBlock" xlink:label="ecd_TabularListTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TabularListTableTextBlock" xlink:to="ecd_TabularListTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TabularListTableTextBlock_lbl" xml:lang="en-US">Tabular List, Table</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_TotalShareholderRtnAmt" xlink:label="ecd_TotalShareholderRtnAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TotalShareholderRtnAmt" xlink:to="ecd_TotalShareholderRtnAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TotalShareholderRtnAmt_lbl" xml:lang="en-US">Total Shareholder Return Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PeerGroupTotalShareholderRtnAmt" xlink:label="ecd_PeerGroupTotalShareholderRtnAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PeerGroupTotalShareholderRtnAmt" xlink:to="ecd_PeerGroupTotalShareholderRtnAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PeerGroupTotalShareholderRtnAmt_lbl" xml:lang="en-US">Peer Group Total Shareholder Return Amount</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_2_lbl" xml:lang="en-US">Net Income (Loss)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_CoSelectedMeasureAmt" xlink:label="ecd_CoSelectedMeasureAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_CoSelectedMeasureAmt" xlink:to="ecd_CoSelectedMeasureAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_CoSelectedMeasureAmt_lbl" xml:lang="en-US">Company Selected Measure Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_OtherPerfMeasureAmt" xlink:label="ecd_OtherPerfMeasureAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_OtherPerfMeasureAmt" xlink:to="ecd_OtherPerfMeasureAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_OtherPerfMeasureAmt_lbl" xml:lang="en-US">Other Performance Measure, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AdjToCompAmt" xlink:label="ecd_AdjToCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AdjToCompAmt" xlink:to="ecd_AdjToCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AdjToCompAmt_lbl" xml:lang="en-US">Adjustment to Compensation, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PeoName" xlink:label="ecd_PeoName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PeoName" xlink:to="ecd_PeoName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PeoName_lbl" xml:lang="en-US">PEO Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_MeasureName" xlink:label="ecd_MeasureName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_MeasureName" xlink:to="ecd_MeasureName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_MeasureName_lbl" xml:lang="en-US">Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_NonGaapMeasureDescriptionTextBlock" xlink:label="ecd_NonGaapMeasureDescriptionTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_NonGaapMeasureDescriptionTextBlock" xlink:to="ecd_NonGaapMeasureDescriptionTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_NonGaapMeasureDescriptionTextBlock_lbl" xml:lang="en-US">Non-GAAP Measure Description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_Additional402vDisclosureTextBlock" xlink:label="ecd_Additional402vDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_Additional402vDisclosureTextBlock" xlink:to="ecd_Additional402vDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_Additional402vDisclosureTextBlock_lbl" xml:lang="en-US">Additional 402(v) Disclosure</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_PnsnBnftsAdjFnTextBlock" xlink:label="ecd_PnsnBnftsAdjFnTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_PnsnBnftsAdjFnTextBlock" xlink:to="ecd_PnsnBnftsAdjFnTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_PnsnBnftsAdjFnTextBlock_lbl" xml:lang="en-US">Pension Benefits Adjustments, Footnote</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ErrCompRecoveryTable" xlink:label="ecd_ErrCompRecoveryTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ErrCompRecoveryTable" xlink:to="ecd_ErrCompRecoveryTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ErrCompRecoveryTable_lbl" xml:lang="en-US">Erroneously Awarded Compensation Recovery [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_RestatementDateAxis" xlink:label="ecd_RestatementDateAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_RestatementDateAxis" xlink:to="ecd_RestatementDateAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_RestatementDateAxis_lbl" xml:lang="en-US">Restatement Determination Date [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_RestatementDeterminationDate" xlink:label="ecd_RestatementDeterminationDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_RestatementDeterminationDate" xlink:to="ecd_RestatementDeterminationDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_RestatementDeterminationDate_lbl" xml:lang="en-US">Restatement Determination Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AggtErrCompAmt" xlink:label="ecd_AggtErrCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AggtErrCompAmt" xlink:to="ecd_AggtErrCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AggtErrCompAmt_lbl" xml:lang="en-US">Aggregate Erroneous Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ErrCompAnalysisTextBlock" xlink:label="ecd_ErrCompAnalysisTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ErrCompAnalysisTextBlock" xlink:to="ecd_ErrCompAnalysisTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ErrCompAnalysisTextBlock_lbl" xml:lang="en-US">Erroneous Compensation Analysis</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:label="ecd_StkPrcOrTsrEstimationMethodTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_StkPrcOrTsrEstimationMethodTextBlock" xlink:to="ecd_StkPrcOrTsrEstimationMethodTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_StkPrcOrTsrEstimationMethodTextBlock_lbl" xml:lang="en-US">Stock Price or TSR Estimation Method</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_OutstandingAggtErrCompAmt" xlink:label="ecd_OutstandingAggtErrCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_OutstandingAggtErrCompAmt" xlink:to="ecd_OutstandingAggtErrCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_OutstandingAggtErrCompAmt_lbl" xml:lang="en-US">Outstanding Aggregate Erroneous Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:label="ecd_AggtErrCompNotYetDeterminedTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AggtErrCompNotYetDeterminedTextBlock" xlink:to="ecd_AggtErrCompNotYetDeterminedTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AggtErrCompNotYetDeterminedTextBlock_lbl" xml:lang="en-US">Aggregate Erroneous Compensation Not Yet Determined</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ForgoneRecoveryIndName" xlink:label="ecd_ForgoneRecoveryIndName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryIndName" xlink:to="ecd_ForgoneRecoveryIndName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ecd_ForgoneRecoveryIndName_lbl" xml:lang="en-US">Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:label="ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt" xlink:to="ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ForgoneRecoveryDueToExpenseOfEnforcementAmt_lbl" xml:lang="en-US">Forgone Recovery due to Expense of Enforcement, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:label="ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt" xlink:to="ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ForgoneRecoveryDueToViolationOfHomeCountryLawAmt_lbl" xml:lang="en-US">Forgone Recovery due to Violation of Home Country Law, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:label="ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt" xlink:to="ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ForgoneRecoveryDueToDisqualificationOfTaxBenefitsAmt_lbl" xml:lang="en-US">Forgone Recovery due to Disqualification of Tax Benefits, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:label="ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock" xlink:to="ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ForgoneRecoveryExplanationOfImpracticabilityTextBlock_lbl" xml:lang="en-US">Forgone Recovery, Explanation of Impracticability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_OutstandingRecoveryIndName" xlink:label="ecd_OutstandingRecoveryIndName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_OutstandingRecoveryIndName" xlink:to="ecd_OutstandingRecoveryIndName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ecd_OutstandingRecoveryIndName_lbl" xml:lang="en-US">Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_OutstandingRecoveryCompAmt" xlink:label="ecd_OutstandingRecoveryCompAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_OutstandingRecoveryCompAmt" xlink:to="ecd_OutstandingRecoveryCompAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_OutstandingRecoveryCompAmt_lbl" xml:lang="en-US">Compensation Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:label="ecd_RestatementDoesNotRequireRecoveryTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_RestatementDoesNotRequireRecoveryTextBlock" xlink:to="ecd_RestatementDoesNotRequireRecoveryTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_RestatementDoesNotRequireRecoveryTextBlock_lbl" xml:lang="en-US">Restatement does not require Recovery</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardsCloseToMnpiDiscTable" xlink:label="ecd_AwardsCloseToMnpiDiscTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardsCloseToMnpiDiscTable" xlink:to="ecd_AwardsCloseToMnpiDiscTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardsCloseToMnpiDiscTable_lbl" xml:lang="en-US">Awards Close in Time to MNPI Disclosures [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardTypeAxis_lbl" xml:lang="en-US">Award Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardTmgMnpiDiscTextBlock" xlink:label="ecd_AwardTmgMnpiDiscTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardTmgMnpiDiscTextBlock" xlink:to="ecd_AwardTmgMnpiDiscTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardTmgMnpiDiscTextBlock_lbl" xml:lang="en-US">Award Timing MNPI Disclosure</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardTmgMethodTextBlock" xlink:label="ecd_AwardTmgMethodTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardTmgMethodTextBlock" xlink:to="ecd_AwardTmgMethodTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardTmgMethodTextBlock_lbl" xml:lang="en-US">Award Timing Method</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardTmgPredtrmndFlag" xlink:label="ecd_AwardTmgPredtrmndFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardTmgPredtrmndFlag" xlink:to="ecd_AwardTmgPredtrmndFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardTmgPredtrmndFlag_lbl" xml:lang="en-US">Award Timing Predetermined</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardTmgMnpiCnsdrdFlag" xlink:label="ecd_AwardTmgMnpiCnsdrdFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardTmgMnpiCnsdrdFlag" xlink:to="ecd_AwardTmgMnpiCnsdrdFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardTmgMnpiCnsdrdFlag_lbl" xml:lang="en-US">Award Timing MNPI Considered</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:label="ecd_AwardTmgHowMnpiCnsdrdTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardTmgHowMnpiCnsdrdTextBlock" xlink:to="ecd_AwardTmgHowMnpiCnsdrdTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardTmgHowMnpiCnsdrdTextBlock_lbl" xml:lang="en-US">Award Timing, How MNPI Considered</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_MnpiDiscTimedForCompValFlag" xlink:label="ecd_MnpiDiscTimedForCompValFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_MnpiDiscTimedForCompValFlag" xlink:to="ecd_MnpiDiscTimedForCompValFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_MnpiDiscTimedForCompValFlag_lbl" xml:lang="en-US">MNPI Disclosure Timed for Compensation Value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:label="ecd_AwardsCloseToMnpiDiscTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardsCloseToMnpiDiscTableTextBlock" xlink:to="ecd_AwardsCloseToMnpiDiscTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardsCloseToMnpiDiscTableTextBlock_lbl" xml:lang="en-US">Awards Close in Time to MNPI Disclosures, Table</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardsCloseToMnpiDiscIndName" xlink:label="ecd_AwardsCloseToMnpiDiscIndName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardsCloseToMnpiDiscIndName" xlink:to="ecd_AwardsCloseToMnpiDiscIndName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ecd_AwardsCloseToMnpiDiscIndName_lbl" xml:lang="en-US">Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardUndrlygSecuritiesAmt" xlink:label="ecd_AwardUndrlygSecuritiesAmt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardUndrlygSecuritiesAmt" xlink:to="ecd_AwardUndrlygSecuritiesAmt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardUndrlygSecuritiesAmt_lbl" xml:lang="en-US">Underlying Securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardExrcPrice" xlink:label="ecd_AwardExrcPrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardExrcPrice" xlink:to="ecd_AwardExrcPrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardExrcPrice_lbl" xml:lang="en-US">Exercise Price</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_AwardGrantDateFairValue" xlink:label="ecd_AwardGrantDateFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardGrantDateFairValue" xlink:to="ecd_AwardGrantDateFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardGrantDateFairValue_lbl" xml:lang="en-US">Fair Value as of Grant Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_UndrlygSecurityMktPriceChngPct" xlink:label="ecd_UndrlygSecurityMktPriceChngPct" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_UndrlygSecurityMktPriceChngPct" xlink:to="ecd_UndrlygSecurityMktPriceChngPct_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_UndrlygSecurityMktPriceChngPct_lbl" xml:lang="en-US">Underlying Security Market Price Change</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_TradingArrByIndTable" xlink:label="ecd_TradingArrByIndTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TradingArrByIndTable" xlink:to="ecd_TradingArrByIndTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TradingArrByIndTable_lbl" xml:lang="en-US">Trading Arrangements, by Individual [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_TradingArrAxis" xlink:label="ecd_TradingArrAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TradingArrAxis" xlink:to="ecd_TradingArrAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TradingArrAxis_lbl" xml:lang="en-US">Trading Arrangement [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_MtrlTermsOfTrdArrTextBlock" xlink:label="ecd_MtrlTermsOfTrdArrTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_MtrlTermsOfTrdArrTextBlock" xlink:to="ecd_MtrlTermsOfTrdArrTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_MtrlTermsOfTrdArrTextBlock_lbl" xml:lang="en-US">Material Terms of Trading Arrangement</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TrdArrExpirationDate_lbl" xml:lang="en-US">Expiration Date</link:label>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#ecd_InsiderTradingPoliciesProcLineItems" xlink:label="ecd_InsiderTradingPoliciesProcLineItems" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BasisOfAccounting_lbl" xml:lang="en-US">BASIS OF PRESENTATION</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubstantialDoubtAboutGoingConcernTextBlock_lbl" xml:lang="en-US">GOING CONCERN</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MineralIndustriesDisclosuresTextBlock_lbl" xml:lang="en-US">MINERAL PROPERTIES</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xlink:label="us-gaap_FairValueMeasurementInputsDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementInputsDisclosureTextBlock" xlink:to="us-gaap_FairValueMeasurementInputsDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementInputsDisclosureTextBlock_lbl" xml:lang="en-US">Fair Value Measurements</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_DisclosureCybersecurityIncidentAbstract" xlink:label="niobf_DisclosureCybersecurityIncidentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_DisclosureCybersecurityIncidentAbstract" xlink:to="niobf_DisclosureCybersecurityIncidentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_DisclosureCybersecurityIncidentAbstract_lbl" xml:lang="en-US">Cybersecurity Incident</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_MaterialCybersecurityIncidentNatureTextBlock" xlink:label="niobf_MaterialCybersecurityIncidentNatureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_MaterialCybersecurityIncidentNatureTextBlock" xlink:to="niobf_MaterialCybersecurityIncidentNatureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_MaterialCybersecurityIncidentNatureTextBlock_lbl" xml:lang="en-US">CYBERSECURITY INCIDENT</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="us-gaap_SubsequentEventsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsAbstract" xlink:to="us-gaap_SubsequentEventsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xml:lang="en-US">Subsequent Events [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xml:lang="en-US">SUBSEQUENT EVENTS</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock_lbl" xml:lang="en-US">Basis of Presentation and Consolidation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_lbl" xml:lang="en-US">Recent Accounting Standards</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US">Use of Estimates</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xml:lang="en-US">Basic and Diluted Earnings per Share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xml:lang="en-US">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share attributable to common shareholders:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xlink:to="us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_lbl" xml:lang="en-US">Schedule of excluded from the dilutive securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xml:lang="en-US">Schedule of account payable and accrued liabilities:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebtTableTextBlock" xlink:label="us-gaap_ConvertibleDebtTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtTableTextBlock" xlink:to="us-gaap_ConvertibleDebtTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl" xml:lang="en-US">The change in the Convertible Debentures is presented below</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock" xlink:label="us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock" xlink:to="us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_lbl" xml:lang="en-US">The following table discloses the components of interest expense associated with the Convertible Debentures</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock" xlink:label="us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_lbl" xml:lang="en-US">The changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock" xlink:label="us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock" xlink:to="us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_lbl" xml:lang="en-US">Schedule of change in the April 2024 Warrant liability</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock" xlink:label="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock" xlink:to="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_lbl" xml:lang="en-US">The Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock" xlink:label="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock" xlink:to="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_lbl" xml:lang="en-US">The following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period ended March 31, 2025</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:to="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xml:lang="en-US">Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_lbl" xml:lang="en-US">The following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock" xlink:to="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_lbl" xml:lang="en-US">The following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock" xlink:label="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock" xlink:to="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_lbl" xml:lang="en-US">The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfStockOptionRollForwardTableTextBlock" xlink:label="niobf_ScheduleOfStockOptionRollForwardTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfStockOptionRollForwardTableTextBlock" xlink:to="niobf_ScheduleOfStockOptionRollForwardTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfStockOptionRollForwardTableTextBlock_lbl" xml:lang="en-US">Schedule Of Stock Option</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:to="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xml:lang="en-US">Schedule of warrant transactions</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock" xlink:label="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock_lbl" xml:lang="en-US">As of March 31, 2025, the Company had outstanding exercisable Warrants, as follows</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_lbl" xml:lang="en-US">The following observable data points were used in calculating the fair value of the Private Warrants using a Black-Scholes pricing model</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_lbl" xml:lang="en-US">The change in the Private Warrants liability is presented below</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_lbl" xml:lang="en-US">The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfExplorationExpendituresTableTextBlock" xlink:label="niobf_ScheduleOfExplorationExpendituresTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfExplorationExpendituresTableTextBlock" xlink:to="niobf_ScheduleOfExplorationExpendituresTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ScheduleOfExplorationExpendituresTableTextBlock_lbl" xml:lang="en-US">Schedule of exploration expenditures</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseCostTableTextBlock" xlink:label="us-gaap_LeaseCostTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCostTableTextBlock" xlink:to="us-gaap_LeaseCostTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xml:lang="en-US">The Company incurred lease costs as follows</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_lbl" xml:lang="en-US">The maturities of lease liabilities are as follows as of March 31, 2025</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:to="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByBalanceSheetGroupingTextBlock_lbl" xml:lang="en-US">Schedule of fair values determined by level 3 inputs are unobservable data</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NumberOfReportableSegments" xlink:label="us-gaap_NumberOfReportableSegments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xml:lang="en-US">Number of reportable segments</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_NetIncomeLoss1" xlink:label="niobf_NetIncomeLoss1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NetIncomeLoss1" xlink:to="niobf_NetIncomeLoss1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_NetIncomeLoss1_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" xlink:label="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" xlink:to="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_lbl" xml:lang="en-US">Net loss</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_2_lbl" xml:lang="en-US">Net loss</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarningsLossPerShareBasicAndDiluted" xlink:to="niobf_EarningsLossPerShareBasicAndDiluted_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_EarningsLossPerShareBasicAndDiluted_2_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions" xlink:label="us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions" xlink:to="us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions_lbl" xml:lang="en-US">Options</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:to="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_lbl" xml:lang="en-US">Warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:to="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_lbl" xml:lang="en-US">Convertible debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DilutiveSecurities" xlink:label="us-gaap_DilutiveSecurities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DilutiveSecurities" xlink:to="us-gaap_DilutiveSecurities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DilutiveSecurities_lbl" xml:lang="en-US">Total potential dilutive securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredFederalIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Federal income tax payable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xml:lang="en-US">Income tax payable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_NetIncomeLoss_3_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_lbl" xml:lang="en-US">Capital deficit</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_2_lbl" xml:lang="en-US">Cash</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableTradeCurrent" xlink:label="us-gaap_AccountsPayableTradeCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableTradeCurrent" xlink:to="us-gaap_AccountsPayableTradeCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableTradeCurrent_lbl" xml:lang="en-US">Accounts payable, trade</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="us-gaap_OtherAccruedLiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent_lbl" xml:lang="en-US">Trade payable accruals</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TaxesPayableCurrentAndNoncurrent" xlink:label="us-gaap_TaxesPayableCurrentAndNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxesPayableCurrentAndNoncurrent" xlink:to="us-gaap_TaxesPayableCurrentAndNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TaxesPayableCurrentAndNoncurrent_lbl" xml:lang="en-US">Environmental accruals</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US">Loan origination fees payable to related party</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xml:lang="en-US">Total accounts payable and accrued liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebt" xlink:label="us-gaap_ConvertibleDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ConvertibleDebt_lbl" xml:lang="en-US">Balance at June 30, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccretionExpenseIncludingAssetRetirementObligations" xlink:label="us-gaap_AccretionExpenseIncludingAssetRetirementObligations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccretionExpenseIncludingAssetRetirementObligations" xlink:to="us-gaap_AccretionExpenseIncludingAssetRetirementObligations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccretionExpenseIncludingAssetRetirementObligations_lbl" xml:lang="en-US">Accretion expense</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_PrincipalAndAccruedInterestConverted" xlink:label="niobf_PrincipalAndAccruedInterestConverted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PrincipalAndAccruedInterestConverted" xlink:to="niobf_PrincipalAndAccruedInterestConverted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_PrincipalAndAccruedInterestConverted_lbl" xml:lang="en-US">Accretion expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ConvertibleDebt_2_lbl" xml:lang="en-US">Balance, December 31, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ContractualInterest" xlink:label="niobf_ContractualInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ContractualInterest" xlink:to="niobf_ContractualInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ContractualInterest_lbl" xml:lang="en-US">Contractual interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="us-gaap_AmortizationOfFinancingCosts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCosts" xlink:to="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xml:lang="en-US">Amortization of discount and issuance costs</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccretionExpense" xlink:to="us-gaap_AccretionExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AccretionExpense_2_lbl" xml:lang="en-US">Total</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueHedgeAssetsAtFairValue" xlink:label="us-gaap_FairValueHedgeAssetsAtFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueHedgeAssetsAtFairValue" xlink:to="us-gaap_FairValueHedgeAssetsAtFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_FairValueHedgeAssetsAtFairValue_lbl" xml:lang="en-US">Fair value at June 30, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="us-gaap_DebtInstrumentPeriodicPayment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPayment" xlink:to="us-gaap_DebtInstrumentPeriodicPayment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPayment_lbl" xml:lang="en-US">Principal payments</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValue" xlink:label="niobf_ChangeInFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValue" xlink:to="niobf_ChangeInFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValue_lbl" xml:lang="en-US">Change in fair value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueHedgeAssetsAtFairValue" xlink:to="us-gaap_FairValueHedgeAssetsAtFairValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_FairValueHedgeAssetsAtFairValue_2_lbl" xml:lang="en-US">Fair value at December 31, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" xlink:to="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable_lbl" xml:lang="en-US">Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" xlink:label="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" xlink:to="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems_lbl" xml:lang="en-US">Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesFairValueDisclosure" xlink:label="us-gaap_OtherLiabilitiesFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesFairValueDisclosure" xlink:to="us-gaap_OtherLiabilitiesFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_OtherLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US">Fair value at June 30, 2024</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAdjustmentOfWarrants" xlink:to="us-gaap_FairValueAdjustmentOfWarrants_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_2_lbl" xml:lang="en-US">Change in fair value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesFairValueDisclosure" xlink:to="us-gaap_OtherLiabilitiesFairValueDisclosure_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_OtherLiabilitiesFairValueDisclosure_2_lbl" xml:lang="en-US">Fair value at December 31, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable" xlink:label="us-gaap_DebtInstrumentTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTable" xlink:to="us-gaap_DebtInstrumentTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentTable_lbl" xml:lang="en-US">Schedule of Long-Term Debt Instruments [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentLineItems" xlink:to="us-gaap_DebtInstrumentLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:to="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl" xml:lang="en-US">Principal and accrued interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xml:lang="en-US">Principal and accrued interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRepaidPrincipal" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentRepaidPrincipal" xlink:to="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentRepaidPrincipal_lbl" xml:lang="en-US">Aggregate principal amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xml:lang="en-US">Number of shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentInterestRate" xlink:label="us-gaap_InvestmentInterestRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentInterestRate" xlink:to="us-gaap_InvestmentInterestRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InvestmentInterestRate_lbl" xml:lang="en-US">Number of shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xml:lang="en-US">Fair Value Measurement Inputs and Valuation Techniques [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xml:lang="en-US">Fair Value Measurement Inputs and Valuation Techniques [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharePrice" xlink:label="us-gaap_SharePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharePrice_lbl" xml:lang="en-US">Closing common share price</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2" xlink:label="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2" xlink:to="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_lbl" xml:lang="en-US">Term (expiry)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xml:lang="en-US">Implied volatility of public warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xml:lang="en-US">Risk-free rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ServicingLiabilityAtFairValueAmount" xlink:label="us-gaap_ServicingLiabilityAtFairValueAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ServicingLiabilityAtFairValueAmount" xlink:to="us-gaap_ServicingLiabilityAtFairValueAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ServicingLiabilityAtFairValueAmount_lbl" xml:lang="en-US">Fair value at June 30, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ServicingLiabilityAtFairValueAdditions" xlink:label="us-gaap_ServicingLiabilityAtFairValueAdditions" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ServicingLiabilityAtFairValueAdditions" xlink:to="us-gaap_ServicingLiabilityAtFairValueAdditions_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ServicingLiabilityAtFairValueAdditions_lbl" xml:lang="en-US">Change in fair value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ServicingLiabilityAtFairValueAmount" xlink:to="us-gaap_ServicingLiabilityAtFairValueAmount_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ServicingLiabilityAtFairValueAmount_2_lbl" xml:lang="en-US">Fair value at December 31, 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xml:lang="en-US">Term (years)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_2_lbl" xml:lang="en-US">Historic equity volatility</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_lbl" xml:lang="en-US">Risk-free rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable" xlink:label="us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable" xlink:to="us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsidiaryOrEquityMethodInvesteeSaleOfStockBySubsidiaryOrEquityInvesteeTable_lbl" xml:lang="en-US">Subsidiary or Equity Method Investee, Sale of Stock, Type [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockLineItems" xlink:label="us-gaap_SubsidiarySaleOfStockLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockLineItems" xlink:to="us-gaap_SubsidiarySaleOfStockLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsidiarySaleOfStockLineItems_lbl" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangesInFairValueOfInitialValuation1" xlink:label="niobf_ChangesInFairValueOfInitialValuation1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangesInFairValueOfInitialValuation1" xlink:to="niobf_ChangesInFairValueOfInitialValuation1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="niobf_ChangesInFairValueOfInitialValuation1_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs" xlink:label="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs" xlink:to="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangesInFairValueOfInitialValuation1" xlink:to="niobf_ChangesInFairValueOfInitialValuation1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="niobf_ChangesInFairValueOfInitialValuation1_2_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_CommonStockSharesIssued1" xlink:label="niobf_CommonStockSharesIssued1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonStockSharesIssued1" xlink:to="niobf_CommonStockSharesIssued1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_CommonStockSharesIssued1_lbl" xml:lang="en-US">Common shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedPerTransaction" xlink:label="us-gaap_SaleOfStockConsiderationReceivedPerTransaction" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockConsiderationReceivedPerTransaction" xlink:to="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl" xml:lang="en-US">Gross funds received</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssued1" xlink:label="us-gaap_StockIssued1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssued1" xlink:to="us-gaap_StockIssued1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssued1_lbl" xml:lang="en-US">Market Value of Shares Issued</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer" xlink:label="us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer" xlink:to="us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer_lbl" xml:lang="en-US">(Gain)/Loss on Issuance</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xml:lang="en-US">Beginning balance (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US">Granted (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Granted</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2_lbl" xml:lang="en-US">Exercised (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xml:lang="en-US">Cancelled/expired (in shares)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Cancelled/expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xml:lang="en-US">Ending balance (in shares)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Ending balance</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US">Aggregate intrinsic value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US">Weighted average remaining contractual life</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xml:lang="en-US">Beginning balance</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightGranted" xlink:label="niobf_ClassOfWarrantOrRightGranted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightGranted" xlink:to="niobf_ClassOfWarrantOrRightGranted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_ClassOfWarrantOrRightGranted_lbl" xml:lang="en-US">Granted</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightExercisePriceGranted" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceGranted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceGranted" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceGranted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceGranted_lbl" xml:lang="en-US">Granted</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightExercised" xlink:label="niobf_ClassOfWarrantOrRightExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercised" xlink:to="niobf_ClassOfWarrantOrRightExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_ClassOfWarrantOrRightExercised_lbl" xml:lang="en-US">Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightExercisePriceExercised" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceExercised" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExercised_lbl" xml:lang="en-US">Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightExpired" xlink:label="niobf_ClassOfWarrantOrRightExpired" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExpired" xlink:to="niobf_ClassOfWarrantOrRightExpired_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ClassOfWarrantOrRightExpired_lbl" xml:lang="en-US">Expired</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ClassOfWarrantOrRightExercisePriceExpired" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExpired" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceExpired" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceExpired_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExpired_lbl" xml:lang="en-US">Expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_2_lbl" xml:lang="en-US">Ending balance</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_2_lbl" xml:lang="en-US">Ending balance</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_lbl" xml:lang="en-US">Share-Based Payment Arrangement, Option, Exercise Price Range [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_lbl" xml:lang="en-US">Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_3_lbl" xml:lang="en-US">Number of share outstanding</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_3_lbl" xml:lang="en-US">Exercise price</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstandingMaturityDate" xlink:label="us-gaap_WarrantsAndRightsOutstandingMaturityDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstandingMaturityDate" xlink:to="us-gaap_WarrantsAndRightsOutstandingMaturityDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantsAndRightsOutstandingMaturityDate_lbl" xml:lang="en-US">Expiry date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_PlatformOperatorCryptoAssetTable" xlink:label="srt_PlatformOperatorCryptoAssetTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_PlatformOperatorCryptoAssetTable" xlink:to="srt_PlatformOperatorCryptoAssetTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_PlatformOperatorCryptoAssetTable_lbl" xml:lang="en-US">Platform Operator, Crypto Asset [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_PlatformOperatorCryptoAssetLineItems" xlink:label="srt_PlatformOperatorCryptoAssetLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_PlatformOperatorCryptoAssetLineItems" xlink:to="srt_PlatformOperatorCryptoAssetLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_PlatformOperatorCryptoAssetLineItems_lbl" xml:lang="en-US">Platform Operator, Crypto Asset [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_lbl" xml:lang="en-US">Stock price on valuation date</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_2_lbl" xml:lang="en-US">Risk free rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xml:lang="en-US">Dividend yield</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_2_lbl" xml:lang="en-US">Expected warrant life in years</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs" xlink:to="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_2_lbl" xml:lang="en-US">Change in fair value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees" xlink:label="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees" xlink:to="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees_lbl" xml:lang="en-US">Description of warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_DebtInstrumentIssuedPrincipalshars" xlink:label="niobf_DebtInstrumentIssuedPrincipalshars" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_DebtInstrumentIssuedPrincipalshars" xlink:to="niobf_DebtInstrumentIssuedPrincipalshars_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_DebtInstrumentIssuedPrincipalshars_lbl" xml:lang="en-US">Debt Instrument Issued Principal shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xml:lang="en-US">Shares issue</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:label="us-gaap_FairValueOptionChangesInFairValueGainLoss1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:to="us-gaap_FairValueOptionChangesInFairValueGainLoss1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueOptionChangesInFairValueGainLoss1_lbl" xml:lang="en-US">Fair value of non operating gain/loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueOther" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueOther" xlink:to="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xml:lang="en-US">Remaining proceeds from private warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_RegisteredOffering" xlink:label="niobf_RegisteredOffering" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_RegisteredOffering" xlink:to="niobf_RegisteredOffering_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_RegisteredOffering_lbl" xml:lang="en-US">Registered Offering</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_PrivateOffering" xlink:label="niobf_PrivateOffering" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PrivateOffering" xlink:to="niobf_PrivateOffering_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_PrivateOffering_lbl" xml:lang="en-US">Private Offering</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_CommonShareDescription" xlink:label="niobf_CommonShareDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonShareDescription" xlink:to="niobf_CommonShareDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_CommonShareDescription_lbl" xml:lang="en-US">Subsequent event, description</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_2_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_3_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherExpenses" xlink:label="us-gaap_OtherExpenses" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherExpenses" xlink:to="us-gaap_OtherExpenses_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherExpenses_lbl" xml:lang="en-US">Other Expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_WarrantsTradedPriorToClosing" xlink:label="niobf_WarrantsTradedPriorToClosing" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_WarrantsTradedPriorToClosing" xlink:to="niobf_WarrantsTradedPriorToClosing_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_WarrantsTradedPriorToClosing_lbl" xml:lang="en-US">Warrants traded prior to the closing</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xml:lang="en-US">Warrants traded prior to the closing</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription" xlink:label="us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription" xlink:to="us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription_lbl" xml:lang="en-US">Contingent consideration description</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_2_lbl" xml:lang="en-US">Stock issued, shares</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_4_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_4_lbl" xml:lang="en-US">Common share exercise price, per share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" xlink:to="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_lbl" xml:lang="en-US">Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_lbl" xml:lang="en-US">Related Party Transaction [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="us-gaap_RelatedPartyTransactionLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xml:lang="en-US">Related Party Transaction [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermLineOfCredit" xlink:label="us-gaap_LongTermLineOfCredit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermLineOfCredit" xlink:to="us-gaap_LongTermLineOfCredit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermLineOfCredit_lbl" xml:lang="en-US">Long-Term Line of Credit, Noncurrent</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionRate" xlink:label="us-gaap_RelatedPartyTransactionRate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionRate" xlink:to="us-gaap_RelatedPartyTransactionRate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionRate_lbl" xml:lang="en-US">Related Party Transaction, Rate</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_LineOfCreditFacilityEstablishmentFee" xlink:label="niobf_LineOfCreditFacilityEstablishmentFee" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LineOfCreditFacilityEstablishmentFee" xlink:to="niobf_LineOfCreditFacilityEstablishmentFee_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_LineOfCreditFacilityEstablishmentFee_lbl" xml:lang="en-US">Line Of Credit Facility Establishment Fee</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherBorrowings" xlink:label="us-gaap_OtherBorrowings" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherBorrowings" xlink:to="us-gaap_OtherBorrowings_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherBorrowings_lbl" xml:lang="en-US">Other Borrowings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LoanProcessingFee" xlink:label="us-gaap_LoanProcessingFee" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LoanProcessingFee" xlink:to="us-gaap_LoanProcessingFee_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LoanProcessingFee_lbl" xml:lang="en-US">Loan Origination fees</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_lbl" xml:lang="en-US">Accounts payable and accrued liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ExplorationExpense" xlink:label="us-gaap_ExplorationExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExplorationExpense" xlink:to="us-gaap_ExplorationExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ExplorationExpense_lbl" xml:lang="en-US">Exploration expenditures</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_DisclosureLeasesAbstract" xlink:to="niobf_DisclosureLeasesAbstract_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_DisclosureLeasesAbstract_2_lbl" xml:lang="en-US">Company Incurred Lease Costs As Follows</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseCostAbstract" xlink:label="us-gaap_LeaseCostAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCostAbstract" xlink:to="us-gaap_LeaseCostAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCostAbstract_lbl" xml:lang="en-US">Operating Lease Cost:</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_FixedRentExpense" xlink:label="niobf_FixedRentExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FixedRentExpense" xlink:to="niobf_FixedRentExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_FixedRentExpense_lbl" xml:lang="en-US">Fixed rent expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableLeaseCost" xlink:label="us-gaap_VariableLeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableLeaseCost" xlink:to="us-gaap_VariableLeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_VariableLeaseCost_lbl" xml:lang="en-US">Variable rent expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermLeaseCost" xlink:label="us-gaap_ShortTermLeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermLeaseCost" xlink:to="us-gaap_ShortTermLeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xml:lang="en-US">Short-term lease cost</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubleaseIncome" xlink:label="us-gaap_SubleaseIncome" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubleaseIncome" xlink:to="us-gaap_SubleaseIncome_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_SubleaseIncome_lbl" xml:lang="en-US">Sublease income</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseCost" xlink:label="us-gaap_LeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCost_lbl" xml:lang="en-US">Lease cost &#8211; other operating expense:</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_DisclosureLeasesAbstract" xlink:to="niobf_DisclosureLeasesAbstract_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="niobf_DisclosureLeasesAbstract_3_lbl" xml:lang="en-US">Maturities Of Lease Liabilities Are As Follows As Of March 31 2025</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xml:lang="en-US">Total remaining lease payments</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_LessAmountOfPaymentsRepresentingInterest" xlink:label="niobf_LessAmountOfPaymentsRepresentingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LessAmountOfPaymentsRepresentingInterest" xlink:to="niobf_LessAmountOfPaymentsRepresentingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_LessAmountOfPaymentsRepresentingInterest_lbl" xml:lang="en-US">Less portion of payments representing interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiability" xlink:label="us-gaap_OperatingLeaseLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xml:lang="en-US">Present value of lease payments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_2_lbl" xml:lang="en-US">&#160; Less current portion of lease payments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_2_lbl" xml:lang="en-US">Non-current lease liability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xml:lang="en-US">Fair Value, Recurring and Nonrecurring [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:to="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xml:lang="en-US">Cash and cash equivalents</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_AvailableForSaleSecuritiesEquitySecuritiesOther" xlink:label="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther" xlink:to="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther_lbl" xml:lang="en-US">Investment in equity securities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="us-gaap_AssetsFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="us-gaap_AssetsFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xml:lang="en-US">Total Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesFairValueDisclosure" xlink:to="us-gaap_OtherLiabilitiesFairValueDisclosure_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesFairValueDisclosure_3_lbl" xml:lang="en-US">Earnout Shares liability</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsNotSettleableInCashFairValueDisclosure" xlink:label="us-gaap_WarrantsNotSettleableInCashFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsNotSettleableInCashFairValueDisclosure" xlink:to="us-gaap_WarrantsNotSettleableInCashFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantsNotSettleableInCashFairValueDisclosure_lbl" xml:lang="en-US">Warrant liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure" xlink:label="us-gaap_FinancialLiabilitiesFairValueDisclosure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialLiabilitiesFairValueDisclosure" xlink:to="us-gaap_FinancialLiabilitiesFairValueDisclosure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US">Total Liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NotesPayable" xlink:label="us-gaap_NotesPayable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayable" xlink:to="us-gaap_NotesPayable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NotesPayable_lbl" xml:lang="en-US">April 2024 notes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="us-gaap_OtherCostAndExpenseOperating" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCostAndExpenseOperating" xlink:to="us-gaap_OtherCostAndExpenseOperating_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherCostAndExpenseOperating_lbl" xml:lang="en-US">Charge on operating expenses</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfessionalFees" xlink:to="us-gaap_ProfessionalFees_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProfessionalFees_2_lbl" xml:lang="en-US">Professional Fees</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTable" xlink:label="us-gaap_SubsequentEventTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTable" xlink:to="us-gaap_SubsequentEventTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTable_lbl" xml:lang="en-US">Subsequent Event [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventLineItems" xlink:label="us-gaap_SubsequentEventLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventLineItems" xlink:to="us-gaap_SubsequentEventLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xml:lang="en-US">Subsequent Event [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventDescription" xlink:label="us-gaap_SubsequentEventDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventDescription" xlink:to="us-gaap_SubsequentEventDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SubsequentEventDescription_lbl" xml:lang="en-US">Subsequent event, description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromStockPlans" xlink:label="us-gaap_ProceedsFromStockPlans" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromStockPlans" xlink:to="us-gaap_ProceedsFromStockPlans_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromStockPlans_lbl" xml:lang="en-US">Cash received</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_3_lbl" xml:lang="en-US">Issuance of common shares</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember" xlink:to="niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember_doc" xml:lang="en-US">The element represents warrants each exercisable for 1.11829212 common shares member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonSharesWithoutParValueMember" xlink:to="niobf_CommonSharesWithoutParValueMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CommonSharesWithoutParValueMember_doc" xml:lang="en-US">The element represents common shares without par value member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarnoutLiabilityAtFairValue" xlink:to="niobf_EarnoutLiabilityAtFairValue_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_EarnoutLiabilityAtFairValue_doc" xml:lang="en-US">The element represents earnout liability at fair value.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExplorationExpenditures" xlink:to="niobf_ExplorationExpenditures_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExplorationExpenditures_doc" xml:lang="en-US">The element represents exploration expenditures.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ChangeInFairValueOfEarnoutLiability" xlink:label="niobf_ChangeInFairValueOfEarnoutLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfEarnoutLiability" xlink:to="niobf_ChangeInFairValueOfEarnoutLiability_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValueOfEarnoutLiability_doc" xml:lang="en-US">The element represents change in fair value of earnout liability.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfWarrantLiability" xlink:to="niobf_ChangeInFairValueOfWarrantLiability_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValueOfWarrantLiability_doc" xml:lang="en-US">The element represents change in fair value of warrant liability.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfConvertibleNotes" xlink:to="niobf_ChangeInFairValueOfConvertibleNotes_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValueOfConvertibleNotes_doc" xml:lang="en-US">The element represents change in fair value of convertible notes.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1" xlink:to="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_doc" xml:lang="en-US">The element represents income loss from continuing operations before income taxes extraordinary items noncontrolling interest.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarningsLossPerShareBasicAndDiluted" xlink:to="niobf_EarningsLossPerShareBasicAndDiluted_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_EarningsLossPerShareBasicAndDiluted_doc" xml:lang="en-US">The element represents earnings loss per share basic and diluted.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_doc" xml:lang="en-US">The element represents total weighted average number of share outstanding basic and diluted.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfEarnoutShareLiability" xlink:to="niobf_ChangeInFairValueOfEarnoutShareLiability_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValueOfEarnoutShareLiability_doc" xml:lang="en-US">The element represents change in fair value of earnout share liability.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInValuationOfWarrantLiabilities" xlink:to="niobf_ChangeInValuationOfWarrantLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInValuationOfWarrantLiabilities_doc" xml:lang="en-US">The element represents change in valuation of warrant liabilities.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_OtheroperatingGainsLosses" xlink:to="niobf_OtheroperatingGainsLosses_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_OtheroperatingGainsLosses_doc" xml:lang="en-US">The element represents otheroperating gains losses.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfConvertibleNote" xlink:to="niobf_ChangeInFairValueOfConvertibleNote_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValueOfConvertibleNote_doc" xml:lang="en-US">The element represents change in fair value of convertible note.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueOfCommitmentSharesIssued" xlink:to="niobf_FairValueOfCommitmentSharesIssued_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_FairValueOfCommitmentSharesIssued_doc" xml:lang="en-US">The element represents fair value of commitment shares issued.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PaymentsOfStockIssuanceCost" xlink:to="niobf_PaymentsOfStockIssuanceCost_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PaymentsOfStockIssuanceCost_doc" xml:lang="en-US">The element represents payments of stock issuance cost.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ConversionsOfDebtForCommonShares" xlink:to="niobf_ConversionsOfDebtForCommonShares_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ConversionsOfDebtForCommonShares_doc" xml:lang="en-US">The element represents conversions of debt for common shares.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ValueOfWarrantsIssued" xlink:to="niobf_ValueOfWarrantsIssued_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ValueOfWarrantsIssued_doc" xml:lang="en-US">The element represents value of warrants issued.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_RedeemableNoncontrollingInterestMember" xlink:to="niobf_RedeemableNoncontrollingInterestMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_RedeemableNoncontrollingInterestMember_doc" xml:lang="en-US">The element represents redeemable noncontrolling interest member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws" xlink:to="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws_doc" xml:lang="en-US">The element represents stock issued during period value yorkville equity facility draws.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StockIssuedDuringPeriodValueOptionLiabilityValuations" xlink:label="niobf_StockIssuedDuringPeriodValueOptionLiabilityValuations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueOptionLiabilityValuations" xlink:to="niobf_StockIssuedDuringPeriodValueOptionLiabilityValuations_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueOptionLiabilityValuations_doc" xml:lang="en-US">The element represents stock issued during period value option liability valuations.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueEquityPlacement" xlink:to="niobf_StockIssuedDuringPeriodValueEquityPlacement_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueEquityPlacement_doc" xml:lang="en-US">The element represents stock issued during period value equity placement.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised" xlink:to="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsExercised_doc" xml:lang="en-US">The element represents stock issued during period value stock warrants exercised.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares" xlink:to="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares_doc" xml:lang="en-US">The element represents stock issued during period value redemptions of vested shares.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued" xlink:to="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueStockWarrantsIssued_doc" xml:lang="en-US">The element represents stock issued during period value stock warrants issued.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws" xlink:to="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws_doc" xml:lang="en-US">The element represents stock issued during period value shares yorkville equity facility draws.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments" xlink:to="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments_doc" xml:lang="en-US">The element represents stock issued during period value shares conversion of convertible securities net of adjustments.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement" xlink:to="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueSharesEquityPlacement_doc" xml:lang="en-US">The element represents stock issued during period value shares equity placement.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised" xlink:to="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised_doc" xml:lang="en-US">The element represents stock issued during period value shares stock warrants exercised.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares" xlink:to="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares_doc" xml:lang="en-US">The element represents stock issued during period value shares redemptions of vested shares.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NetIncomeLoss1" xlink:to="niobf_NetIncomeLoss1_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_NetIncomeLoss1_doc" xml:lang="en-US">The element represents net income loss.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_MaterialCybersecurityIncidentNatureTextBlock" xlink:to="niobf_MaterialCybersecurityIncidentNatureTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_MaterialCybersecurityIncidentNatureTextBlock_doc" xml:lang="en-US">The element represents material cybersecurity incident nature text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther" xlink:to="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_AvailableForSaleSecuritiesEquitySecuritiesOther_doc" xml:lang="en-US">The element represents available for sale securities equity securities other.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FixedRentExpense" xlink:to="niobf_FixedRentExpense_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_FixedRentExpense_doc" xml:lang="en-US">The element represents fixed rent expense.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LessAmountOfPaymentsRepresentingInterest" xlink:to="niobf_LessAmountOfPaymentsRepresentingInterest_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_LessAmountOfPaymentsRepresentingInterest_doc" xml:lang="en-US">The element represents less amount of payments representing interest.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExplorationExpendituresDisclosuresTextBlock" xlink:to="niobf_ExplorationExpendituresDisclosuresTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExplorationExpendituresDisclosuresTextBlock_doc" xml:lang="en-US">The element represents exploration expenditures disclosures text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfExplorationExpendituresTableTextBlock" xlink:to="niobf_ScheduleOfExplorationExpendituresTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfExplorationExpendituresTableTextBlock_doc" xml:lang="en-US">The element represents schedule of exploration expenditures table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CostCentreAxis" xlink:to="niobf_CostCentreAxis_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CostCentreAxis_doc" xml:lang="en-US">The element represents cost centre axis.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_TechnicalStudiesAndEngineeringMember" xlink:to="niobf_TechnicalStudiesAndEngineeringMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_TechnicalStudiesAndEngineeringMember_doc" xml:lang="en-US">The element represents technical studies and engineering member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FieldmanagementandotherMember" xlink:to="niobf_FieldmanagementandotherMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_FieldmanagementandotherMember_doc" xml:lang="en-US">The element represents field management and other member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_MetallurgicaldevelopmentMember" xlink:to="niobf_MetallurgicaldevelopmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_MetallurgicaldevelopmentMember_doc" xml:lang="en-US">The element represents metallurgical development member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_GeologistAndFieldStaffMember" xlink:to="niobf_GeologistAndFieldStaffMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_GeologistAndFieldStaffMember_doc" xml:lang="en-US">The element represents geologist and field staff member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NonRevolvingCreditFacilityAgreementMember" xlink:to="niobf_NonRevolvingCreditFacilityAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_NonRevolvingCreditFacilityAgreementMember_doc" xml:lang="en-US">The element represents non revolving credit facility agreement member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_GeneralSecurityAgreementMember" xlink:to="niobf_GeneralSecurityAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_GeneralSecurityAgreementMember_doc" xml:lang="en-US">The element represents general security agreement member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LineOfCreditFacilityEstablishmentFee" xlink:to="niobf_LineOfCreditFacilityEstablishmentFee_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_LineOfCreditFacilityEstablishmentFee_doc" xml:lang="en-US">The element represents line of credit facility establishment fee.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_DebtInstrumentIssuedPrincipalshars" xlink:to="niobf_DebtInstrumentIssuedPrincipalshars_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_DebtInstrumentIssuedPrincipalshars_doc" xml:lang="en-US">The element represents Debt Instrumen tIssued Principal shares.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PurchaseAgreementSeriesAMember" xlink:to="niobf_PurchaseAgreementSeriesAMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PurchaseAgreementSeriesAMember_doc" xml:lang="en-US">The element represents purchase agreement series a member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PurchaseAgreementSeriesBMember" xlink:to="niobf_PurchaseAgreementSeriesBMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PurchaseAgreementSeriesBMember_doc" xml:lang="en-US">The element represents purchase agreement series b member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_RegisteredOffering" xlink:to="niobf_RegisteredOffering_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_RegisteredOffering_doc" xml:lang="en-US">The element represents registered offering.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PrivateOffering" xlink:to="niobf_PrivateOffering_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PrivateOffering_doc" xml:lang="en-US">The element represents private offering.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock" xlink:to="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_doc" xml:lang="en-US">The element represents fair value assets and liability measured on recurring and nonrecurring basis table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesAPrivateWarrantsMember" xlink:to="niobf_SeriesAPrivateWarrantsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_SeriesAPrivateWarrantsMember_doc" xml:lang="en-US">The element represents series a private warrants member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesAPublicWarrantsMember" xlink:to="niobf_SeriesAPublicWarrantsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_SeriesAPublicWarrantsMember_doc" xml:lang="en-US">The element represents series a public warrants member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesBPublicWarrantsMember" xlink:to="niobf_SeriesBPublicWarrantsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_SeriesBPublicWarrantsMember_doc" xml:lang="en-US">The element represents series b public warrants member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_YorkvilleConvertibleDebtFinancingAgreementMember" xlink:to="niobf_YorkvilleConvertibleDebtFinancingAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_YorkvilleConvertibleDebtFinancingAgreementMember_doc" xml:lang="en-US">The element represents yorkville convertible debt financing agreement member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PrincipalAndAccruedInterestConverted" xlink:to="niobf_PrincipalAndAccruedInterestConverted_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PrincipalAndAccruedInterestConverted_doc" xml:lang="en-US">The element represents principal and accrued interest converted.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ContractualInterest" xlink:to="niobf_ContractualInterest_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ContractualInterest_doc" xml:lang="en-US">The element represents contractual interest.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PurchaseAgreementMember" xlink:to="niobf_PurchaseAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_PurchaseAgreementMember_doc" xml:lang="en-US">The element represents purchase agreement member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValue" xlink:to="niobf_ChangeInFairValue_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangeInFairValue_doc" xml:lang="en-US">The element represents change in fair value.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_EarnoutMember" xlink:to="niobf_EarnoutMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_EarnoutMember_doc" xml:lang="en-US">The element represents earnout member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfClassBCommonStockOfECRCTextBlock" xlink:to="niobf_ScheduleOfClassBCommonStockOfECRCTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfClassBCommonStockOfECRCTextBlock_doc" xml:lang="en-US">The element represents schedule of class B common stock of ECRC text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock" xlink:to="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_doc" xml:lang="en-US">The element represents schedule of primary inputs into the monte carlo models table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2" xlink:to="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_doc" xml:lang="en-US">The element represents sharebased compensation arrangement by sharebased payment award fair value assumptions expected term2.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock" xlink:to="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_doc" xml:lang="en-US">The element represents schedule of summary of the changes in the fair value of the earnout share liability table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_SeriesBPrivateWarrantsMember" xlink:to="niobf_SeriesBPrivateWarrantsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_SeriesBPrivateWarrantsMember_doc" xml:lang="en-US">The element represents series b private warrants member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_doc" xml:lang="en-US">The element represents schedule of changes in the fair value of the november private warrants table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangesInFairValueOfInitialValuation1" xlink:to="niobf_ChangesInFairValueOfInitialValuation1_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ChangesInFairValueOfInitialValuation1_doc" xml:lang="en-US">The element represents changes in fair value of initial valuation1.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_NovemberPrivateWarrantsliabilitiesMember" xlink:to="niobf_NovemberPrivateWarrantsliabilitiesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_NovemberPrivateWarrantsliabilitiesMember_doc" xml:lang="en-US">The element represents november private warrantsliabilities member.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_StrikePriceOfWarrantsIssued" xlink:label="niobf_StrikePriceOfWarrantsIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_StrikePriceOfWarrantsIssued" xlink:to="niobf_StrikePriceOfWarrantsIssued_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_StrikePriceOfWarrantsIssued_doc" xml:lang="en-US">The element represents strike price of warrants issued.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock" xlink:to="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_doc" xml:lang="en-US">The element represents fair value assets and liability measured on recurring and nonrecurring basis of warrants table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonStockSharesIssued1" xlink:to="niobf_CommonStockSharesIssued1_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CommonStockSharesIssued1_doc" xml:lang="en-US">The element represents common stock shares issued.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock" xlink:to="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_doc" xml:lang="en-US">The element represents schedule common shares under facility financing agreement table text block.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ScheduleOfCommonSharesUnderFacilityFinancingAgreementTableTextBlock" xlink:label="niobf_ScheduleOfCommonSharesUnderFacilityFinancingAgreementTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfCommonSharesUnderFacilityFinancingAgreementTableTextBlock" xlink:to="niobf_ScheduleOfCommonSharesUnderFacilityFinancingAgreementTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfCommonSharesUnderFacilityFinancingAgreementTableTextBlock_doc" xml:lang="en-US">The element represents schedule of common shares under facility financing agreement table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfStockOptionRollForwardTableTextBlock" xlink:to="niobf_ScheduleOfStockOptionRollForwardTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfStockOptionRollForwardTableTextBlock_doc" xml:lang="en-US">The element represents schedule of stock option roll forward table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightGranted" xlink:to="niobf_ClassOfWarrantOrRightGranted_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightGranted_doc" xml:lang="en-US">The element represents class of warrant or right granted.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercised" xlink:to="niobf_ClassOfWarrantOrRightExercised_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightExercised_doc" xml:lang="en-US">The element represents class of warrant or right exercised.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExpired" xlink:to="niobf_ClassOfWarrantOrRightExpired_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightExpired_doc" xml:lang="en-US">The element represents class of warrant or right expired.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceExpired" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceExpired_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExpired_doc" xml:lang="en-US">The element represents class of warrant or right exercise price expired.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceExercised" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceExercised_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceExercised_doc" xml:lang="en-US">The element represents class of warrant or right exercise price exercised.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ClassOfWarrantOrRightExercisePriceGranted" xlink:to="niobf_ClassOfWarrantOrRightExercisePriceGranted_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ClassOfWarrantOrRightExercisePriceGranted_doc" xml:lang="en-US">The element represents class of warrant or right exercise price granted.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock_doc" xml:lang="en-US">The element represents schedule of outstanding exercisable warrants table text block.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_ExercisePrice9.70Member" xlink:label="niobf_ExercisePrice9.70Member" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice9.70Member" xlink:to="niobf_ExercisePrice9.70Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice9.70Member_doc" xml:lang="en-US">The element represents exercise price 9.70 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice4.60Member" xlink:to="niobf_ExercisePrice4.60Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice4.60Member_doc" xml:lang="en-US">The element represents exercise price 4.60 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice3.54Member" xlink:to="niobf_ExercisePrice3.54Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice3.54Member_doc" xml:lang="en-US">The element represents exercise price 3.54 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.20Member" xlink:to="niobf_ExercisePrice2.20Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice2.20Member_doc" xml:lang="en-US">The element represents exercise price 2.20 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice1.75Member" xlink:to="niobf_ExercisePrice1.75Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice1.75Member_doc" xml:lang="en-US">The element represents exercise price 1.75 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice01.75Member" xlink:to="niobf_ExercisePrice01.75Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice01.75Member_doc" xml:lang="en-US">The element represents exercise price 01.75 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice3.25Member" xlink:to="niobf_ExercisePrice3.25Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice3.25Member_doc" xml:lang="en-US">The element represents exercise price 3.25 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice1.98Member" xlink:to="niobf_ExercisePrice1.98Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice1.98Member_doc" xml:lang="en-US">The element represents exercise price 1.98 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice11.50Member" xlink:to="niobf_ExercisePrice11.50Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice11.50Member_doc" xml:lang="en-US">The element represents exercise price 11.50 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.31Member" xlink:to="niobf_ExercisePrice2.31Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice2.31Member_doc" xml:lang="en-US">The element represents exercise price 2.31 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.05Member" xlink:to="niobf_ExercisePrice2.05Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice2.05Member_doc" xml:lang="en-US">The element represents exercise price 2.05 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice2.07Member" xlink:to="niobf_ExercisePrice2.07Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice2.07Member_doc" xml:lang="en-US">The element represents exercise price 2.07 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExercisePrice02.07Member" xlink:to="niobf_ExercisePrice02.07Member_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ExercisePrice02.07Member_doc" xml:lang="en-US">The element represents exercise price 02.07 member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_WarrantsTradedPriorToClosing" xlink:to="niobf_WarrantsTradedPriorToClosing_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_WarrantsTradedPriorToClosing_doc" xml:lang="en-US">The element represents warrants traded prior to the closing.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_GXIIPrivateWarrantsMember" xlink:to="niobf_GXIIPrivateWarrantsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_GXIIPrivateWarrantsMember_doc" xml:lang="en-US">The element represents gxii private warrants member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock" xlink:to="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_doc" xml:lang="en-US">The element represents schedule of changes in the fair value of the private warrants table text block.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LindConsentWarrantIssuanceMember" xlink:to="niobf_LindConsentWarrantIssuanceMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_LindConsentWarrantIssuanceMember_doc" xml:lang="en-US">The element represents lind consent warrant issuance member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_BlackScholesValuationMember" xlink:to="niobf_BlackScholesValuationMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_BlackScholesValuationMember_doc" xml:lang="en-US">This element represents black scholes valuation member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_LindGlobalAssetManagementThreeLLCMember" xlink:to="niobf_LindGlobalAssetManagementThreeLLCMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_LindGlobalAssetManagementThreeLLCMember_doc" xml:lang="en-US">The element represents lind global asset management three llc member.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_CommonShareTypeAxis" xlink:label="niobf_CommonShareTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonShareTypeAxis" xlink:to="niobf_CommonShareTypeAxis_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CommonShareTypeAxis_doc" xml:lang="en-US">The element represents common share type axis.</link:label>
      <link:loc xlink:type="locator" xlink:href="niobf-20250331.xsd#niobf_CommonShareMember" xlink:label="niobf_CommonShareMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonShareMember" xlink:to="niobf_CommonShareMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CommonShareMember_doc" xml:lang="en-US">The element represents common share member.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_CommonShareDescription" xlink:to="niobf_CommonShareDescription_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="niobf_CommonShareDescription_doc" xml:lang="en-US">This element represents common share description.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_2_lbl" xml:lang="en-US">Assets, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_2_lbl" xml:lang="en-US">Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_2_lbl" xml:lang="en-US">Liabilities, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_2_lbl" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_2_lbl" xml:lang="en-US">Liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_2_lbl" xml:lang="en-US">Equity, Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xml:lang="en-US">Liabilities and Equity</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpenses_2_lbl" xml:lang="en-US">Operating Expenses</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfEarnoutSharesLiability" xlink:to="niobf_ChangeInFairValueOfEarnoutSharesLiability_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValueOfEarnoutSharesLiability_2_lbl" xml:lang="en-US">ChangeInFairValueOfEarnoutSharesLiability</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ChangeInFairValueOfConvertibleNotes" xlink:to="niobf_ChangeInFairValueOfConvertibleNotes_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ChangeInFairValueOfConvertibleNotes_3_lbl" xml:lang="en-US">Change In Fair Value Of Convertible Notes</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseNonoperating" xlink:to="us-gaap_InterestExpenseNonoperating_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpenseNonoperating_2_lbl" xml:lang="en-US">Interest Expense, Nonoperating</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1" xlink:to="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1_3_lbl" xml:lang="en-US">Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest One</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OciEquityMethodInvestmentBeforeTaxParent" xlink:to="us-gaap_OciEquityMethodInvestmentBeforeTaxParent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OciEquityMethodInvestmentBeforeTaxParent_2_lbl" xml:lang="en-US">OCI, Equity Method Investment, before Tax, Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_OtheroperatingGainsLosses" xlink:to="niobf_OtheroperatingGainsLosses_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_OtheroperatingGainsLosses_3_lbl" xml:lang="en-US">Otheroperating Gains Losses</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrealizedGainLossOnInvestments" xlink:to="us-gaap_UnrealizedGainLossOnInvestments_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrealizedGainLossOnInvestments_2_lbl" xml:lang="en-US">Unrealized Gain (Loss) on Investments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities" xlink:to="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities_2_lbl" xml:lang="en-US">AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:to="us-gaap_IncreaseDecreaseInPrepaidExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidExpense_2_lbl" xml:lang="en-US">Increase (Decrease) in Prepaid Expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_2_lbl" xml:lang="en-US">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireOtherInvestments" xlink:to="us-gaap_PaymentsToAcquireOtherInvestments_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireOtherInvestments_2_lbl" xml:lang="en-US">Payments to Acquire Other Investments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfRelatedPartyDebt" xlink:to="us-gaap_RepaymentsOfRelatedPartyDebt_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfRelatedPartyDebt_2_lbl" xml:lang="en-US">Repayments of Related Party Debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfConvertibleDebt" xlink:to="us-gaap_RepaymentsOfConvertibleDebt_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_2_lbl" xml:lang="en-US">Repayments of Convertible Debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_2_lbl" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3_lbl" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xml:lang="en-US">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockDividend" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockDividend_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockDividend_2_lbl" xml:lang="en-US">Stock Issued During Period, Value, Stock Dividend</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_ForgoneRecoveryIndName" xlink:to="ecd_ForgoneRecoveryIndName_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_ForgoneRecoveryIndName_2_lbl" xml:lang="en-US">Forgone Recovery, Individual Name</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_OutstandingRecoveryIndName" xlink:to="ecd_OutstandingRecoveryIndName_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_OutstandingRecoveryIndName_2_lbl" xml:lang="en-US">Outstanding Recovery, Individual Name</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_AwardsCloseToMnpiDiscIndName" xlink:to="ecd_AwardsCloseToMnpiDiscIndName_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_AwardsCloseToMnpiDiscIndName_2_lbl" xml:lang="en-US">Awards Close in Time to MNPI Disclosures, Individual Name</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ecd_TrdArrIndName" xlink:to="ecd_TrdArrIndName_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ecd_TrdArrIndName_2_lbl" xml:lang="en-US">Trading Arrangement, Individual Name</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_ExplorationExpendituresDisclosuresTextBlock" xlink:to="niobf_ExplorationExpendituresDisclosuresTextBlock_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_ExplorationExpendituresDisclosuresTextBlock_3_lbl" xml:lang="en-US">Exploration Expenditures Disclosures [Text Block]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeasesTextBlock" xlink:to="us-gaap_LesseeOperatingLeasesTextBlock_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_2_lbl" xml:lang="en-US">Lessee, Operating Leases [Text Block]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Net Income (Loss) Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_2_lbl" xml:lang="en-US">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic" xlink:to="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_2_lbl" xml:lang="en-US">Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:to="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities_2_lbl" xml:lang="en-US">Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebt_3_lbl" xml:lang="en-US">Convertible Debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="niobf_PrincipalAndAccruedInterestConverted" xlink:to="niobf_PrincipalAndAccruedInterestConverted_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="niobf_PrincipalAndAccruedInterestConverted_3_lbl" xml:lang="en-US">Principal And Accrued Interest Converted</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueHedgeAssetsAtFairValue" xlink:to="us-gaap_FairValueHedgeAssetsAtFairValue_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueHedgeAssetsAtFairValue_3_lbl" xml:lang="en-US">Fair Value Hedge Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPayment" xlink:to="us-gaap_DebtInstrumentPeriodicPayment_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPayment_2_lbl" xml:lang="en-US">Debt Instrument, Periodic Payment</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_2_lbl" xml:lang="en-US">Gain (Loss) on Extinguishment of Debt</link:label>
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</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>niobf-20250331_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
<XBRL>
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<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>7
<FILENAME>n2574_x261ex31-1.htm
<DESCRIPTION>CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO EXCHANGE ACT RULES 13A-14(A) AND 15D-14(A)
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
31.1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I,
Mark A. Smith, certify that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.
I have reviewed this Quarterly Report on Form 10-Q of NioCorp Developments Ltd.;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect
to the period covered by this report;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all
material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods
presented in this report;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.
The registrant&rsquo;s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined
in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in which this report is being prepared;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
Disclosed in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the
registrant&rsquo;s most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that
has materially affected, or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial
reporting; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.
The registrant&rsquo;s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control
over financial reporting, to the registrant&rsquo;s auditors and the audit committee of the registrant&rsquo;s board of directors
(or persons performing the equivalent functions):</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which
are reasonably likely to adversely affect the registrant&rsquo;s ability to record, process, summarize and report financial information;
and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s
internal control over financial reporting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 54%; font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
May 8, 2025</FONT></P></TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </FONT></TD>
    <TD STYLE="width: 43%; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Mark A. Smith</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    A. Smith</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
Executive Officer</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
Executive Officer)</FONT></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"></P>

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    <!-- Field: /Page -->


</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>8
<FILENAME>n2574_x261ex31-2.htm
<DESCRIPTION>CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO EXCHANGE ACT RULES 13A-14(A) AND 15D-14(A)
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">


<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
31.2</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I,
Neal Shah, certify that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.
I have reviewed this Quarterly Report on Form 10-Q of NioCorp Developments Ltd.;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary
to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect
to the period covered by this report;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.
Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all
material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods
presented in this report;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.
The registrant&rsquo;s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined
in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,
to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in which this report is being prepared;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted accounting principles;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented in this report our conclusions
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on
such evaluation; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
Disclosed in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the
registrant&rsquo;s most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that
has materially affected, or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial
reporting; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.
The registrant&rsquo;s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control
over financial reporting, to the registrant&rsquo;s auditors and the audit committee of the registrant&rsquo;s board of directors
(or persons performing the equivalent functions):</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which
are reasonably likely to adversely affect the registrant&rsquo;s ability to record, process, summarize and report financial information;
and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s
internal control over financial reporting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 54%; font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
May 8, 2025</FONT></P></TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </FONT></TD>
    <TD STYLE="width: 43%; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Neal Shah</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Neal
    Shah</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
Financial Officer</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
Financial and Accounting Officer)</FONT></P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"></P>

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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>9
<FILENAME>n2574_x261ex32-1.htm
<DESCRIPTION>CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
32.1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO 18 U.S.C. SECTION 1350</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>AS
ADOPTED PURSUANT TO</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SECTION
906 OF THE SARBANES-OXLEY ACT OF 2002</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Quarterly Report on Form 10-Q of NioCorp Developments Ltd. (the &ldquo;Company&rdquo;), for the period ended
March 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Report&rdquo;), I, Mark Smith,
Chief Executive Officer of the Company, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that, to my knowledge:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.
The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.
The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations
of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 54%; font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 35pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
May 8, 2025</FONT></P></TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </FONT></TD>
    <TD STYLE="width: 43%; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Mark A. Smith</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    A. Smith</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
        Executive Officer</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
        Executive Officer)</FONT></P></TD></TR>
</TABLE>


<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"></P>

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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>10
<FILENAME>n2574_x261ex32-2.htm
<DESCRIPTION>CERTIFICATION OF THE CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
32.2</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO 18 U.S.C. SECTION 1350</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>AS
ADOPTED PURSUANT TO</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SECTION
906 OF THE SARBANES-OXLEY ACT OF 2002</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Quarterly Report on Form 10-Q of NioCorp Developments Ltd. (the &ldquo;Company&rdquo;), for the period ended
March 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Report&rdquo;), I, Neal Shah,
Chief Financial Officer of the Company, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906
of the Sarbanes-Oxley Act of 2002, that, to my knowledge:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.
The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.
The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations
of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 27pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="width: 54%; font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 35pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
May 8, 2025</FONT></P></TD>
    <TD STYLE="width: 3%; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </FONT></TD>
    <TD STYLE="width: 43%; border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/
    Neal Shah</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Neal
    Shah</FONT></TD></TR>
<TR STYLE="vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
Financial Officer</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
Financial and Accounting Officer)</FONT></P></TD></TR>
</TABLE>


<P STYLE="margin: 0; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>n257410qimg001.jpg
<DESCRIPTION>GRAPHIC
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cover - shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>May 08, 2025</div></th>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentQuarterlyReport', window );">Document Quarterly Report</a></td>
<td class="text">true<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentTransitionReport', window );">Document Transition Report</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Mar. 31,  2025<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2025<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--06-30<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-41655<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">NioCorp Developments Ltd.<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001512228<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">98-1262185<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">A1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">7000 South Yosemite Street<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Address Line Two</a></td>
<td class="text">Suite 115<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Centennial<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">CO<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">80112<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(720)<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">334-7066<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityInteractiveDataCurrent', window );">Entity Interactive Data Current</a></td>
<td class="text">Yes<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Non-accelerated Filer<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntitySmallBusiness', window );">Entity Small Business</a></td>
<td class="text">true<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">false<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityShellCompany', window );">Entity Shell Company</a></td>
<td class="text">false<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">55,709,163<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=niobf_CommonSharesWithoutParValueMember', window );">Common Shares, without par value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Shares, without par value<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">NB<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementClassOfStockAxis=niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember', window );">Warrants, each exercisable for 1.11829212 Common Shares</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Warrants, each exercisable for 1.11829212 Common Shares<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">NIOBW<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<span></span>
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<td class="text">&#160;<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as an quarterly report.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-Q<br> -Number 240<br> -Section 308<br> -Subsection a<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentQuarterlyReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentTransitionReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as a transition report.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Forms 10-K, 10-Q, 20-F<br> -Number 240<br> -Section 13<br> -Subsection a-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentTransitionReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityInteractiveDataCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityShellCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementClassOfStockAxis=niobf_CommonSharesWithoutParValueMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementClassOfStockAxis=niobf_CommonSharesWithoutParValueMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementClassOfStockAxis=niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementClassOfStockAxis=niobf_WarrantsEachExercisableFor1.11829212CommonSharesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 1,294<span></span>
</td>
<td class="nump">$ 2,012<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross', window );">Prepaid expenses and other</a></td>
<td class="nump">79<span></span>
</td>
<td class="nump">916<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">1,373<span></span>
</td>
<td class="nump">2,928<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrentAbstract', window );"><strong>Non-current</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DepositsAssets', window );">Deposits</a></td>
<td class="nump">35<span></span>
</td>
<td class="nump">35<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LongTermInvestmentsAndReceivablesNet', window );">Investment in equity securities</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">4<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinanceLeaseRightOfUseAsset', window );">Right-of-use assets</a></td>
<td class="nump">135<span></span>
</td>
<td class="nump">181<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Land and buildings, net</a></td>
<td class="nump">839<span></span>
</td>
<td class="nump">837<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CapitalizedCostsMineralInterestsInUnprovedProperties', window );">Mineral properties</a></td>
<td class="nump">16,085<span></span>
</td>
<td class="nump">16,085<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">18,470<span></span>
</td>
<td class="nump">20,070<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable and accrued liabilities</a></td>
<td class="nump">1,024<span></span>
</td>
<td class="nump">1,843<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesCurrent', window );">Warrant liabilities, at fair value</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">2,365<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ConvertibleDebtNoncurrent', window );">Convertible debt</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">7,660<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Operating lease liability</a></td>
<td class="nump">98<span></span>
</td>
<td class="nump">96<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">1,122<span></span>
</td>
<td class="nump">11,964<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsNoncurrentAbstract', window );"><strong>Non-current</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Warrant liabilities, at fair value</a></td>
<td class="nump">4,200<span></span>
</td>
<td class="nump">1,651<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_EarnoutLiabilityAtFairValue', window );">Earnout liability, at fair value</a></td>
<td class="nump">4,327<span></span>
</td>
<td class="nump">3,817<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Operating lease liability</a></td>
<td class="nump">52<span></span>
</td>
<td class="nump">104<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">9,701<span></span>
</td>
<td class="nump">17,536<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and contingencies</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount', window );">Redeemable noncontrolling interest</a></td>
<td class="nump">1,238<span></span>
</td>
<td class="nump">1,534<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>SHAREHOLDERS&#8217; EQUITY</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, no par value, unlimited shares authorized; 47,188,119 and 38,062,647 shares outstanding, respectively</a></td>
<td class="nump">178,172<span></span>
</td>
<td class="nump">163,823<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(169,730)<span></span>
</td>
<td class="num">(161,912)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(911)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total shareholders&#8217; equity</a></td>
<td class="nump">7,531<span></span>
</td>
<td class="nump">1,000<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities, redeemable noncontrolling interest, and shareholders&#8217; equity</a></td>
<td class="nump">$ 18,470<span></span>
</td>
<td class="nump">$ 20,070<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_EarnoutLiabilityAtFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents earnout liability at fair value.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_EarnoutLiabilityAtFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 40<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 40<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(3))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of asset recognized for present right to economic benefit.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of asset recognized for present right to economic benefit, classified as current.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481203/810-10-50-3<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-25<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 235<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br><br>Reference 4: 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Accounting Standards Codification<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 470<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(i))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 470<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 470<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 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https://asc.fasb.org/1943274/2147481404/852-10-50-7<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CapitalizedCostsMineralInterestsInUnprovedProperties">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, before accumulated depreciation, depletion, amortization, and valuation allowance, of capitalized cost for mineral interest in unproved property in oil- and gas-producing activities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 932<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 15<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477215/932-235-50-15<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 932<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 15<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477215/932-235-50-15<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 932<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477215/932-235-50-13<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 932<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 14<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477215/932-235-50-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CapitalizedCostsMineralInterestsInUnprovedProperties</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(17))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(25))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(19))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(15))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingencies</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(22))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -SubTopic 10<br> -Topic 210<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebtNoncurrent</td>
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</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of issuance costs recognized in a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing, before deduction of accumulated amortization or effects of subsequent adjustments.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2A<br> -Subparagraph (f)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481139/470-20-50-2A<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DepositsAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment in the future.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DepositsAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinanceLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of right-of-use asset from finance lease.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinanceLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 235<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 323<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3<br><br>Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 825<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(21))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481203/810-10-50-3<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-25<br><br>Reference 4: 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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesNoncurrentAbstract</td>
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<td>xbrli:stringItemType</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermInvestmentsAndReceivablesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle) and amount due to the Entity from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such investments and receivables to an amount that approximates their net realizable value.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(18))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermInvestmentsAndReceivablesNet</td>
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<tr>
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<tr>
<td><strong> Period Type:</strong></td>
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</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
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<tr>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesCurrent</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(24))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 360<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
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<tr>
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<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 480<br> -SubTopic 10<br> -Subparagraph (12)(c)<br> -Section S99<br> -Paragraph 3A<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 480<br> -SubTopic 10<br> -Subparagraph (16)(c)<br> -Paragraph 3A<br> -Section S99<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 480<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3A<br> -Subparagraph (15)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 480<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3A<br> -Subparagraph (14)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated undistributed earnings (deficit).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 40<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 40<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480990/946-20-50-11<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(17))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 852<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481372/852-10-55-10<br><br>Reference 5: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 946<br> -SubTopic 830<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 12<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479168/946-830-55-12<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(19))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.6-05(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(4)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(6))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(7))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 235<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br><br>Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 323<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3<br><br>Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 825<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28<br><br>Reference 14: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 310<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480418/310-10-S99-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
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<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementOfFinancialPositionAbstract', window );"><strong>Statement of Financial Position [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0<span></span>
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<td class="nump">$ 0<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorizedUnlimited', window );">Common stock, authorized</a></td>
<td class="text">Unlimited<span></span>
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<td class="text">Unlimited<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding</a></td>
<td class="nump">47,188,119<span></span>
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<td class="nump">38,062,647<span></span>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>dtr-types:perShareItemType</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicates whether number of common shares permitted to be issued is unlimited. Acceptable value is "Unlimited".</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorizedUnlimited</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>us-types:authorizedUnlimitedItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -SubTopic 10<br> -Topic 505<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.6-05(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(4)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(16)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(7))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementOfFinancialPositionAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementOfFinancialPositionAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingExpensesAbstract', window );"><strong>Operating expenses</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LaborAndRelatedExpense', window );">Employee related costs</a></td>
<td class="nump">$ 376<span></span>
</td>
<td class="nump">$ 2,531<span></span>
</td>
<td class="nump">$ 1,610<span></span>
</td>
<td class="nump">$ 3,181<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProfessionalFees', window );">Professional fees</a></td>
<td class="nump">636<span></span>
</td>
<td class="nump">633<span></span>
</td>
<td class="nump">1,858<span></span>
</td>
<td class="nump">2,772<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ExplorationExpenditures', window );">Exploration expenditures</a></td>
<td class="nump">495<span></span>
</td>
<td class="nump">489<span></span>
</td>
<td class="nump">894<span></span>
</td>
<td class="nump">2,417<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherGeneralExpense', window );">Other operating expenses</a></td>
<td class="nump">1,092<span></span>
</td>
<td class="nump">1,457<span></span>
</td>
<td class="nump">2,533<span></span>
</td>
<td class="nump">3,100<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingExpenses', window );">Total operating expenses</a></td>
<td class="nump">2,599<span></span>
</td>
<td class="nump">5,110<span></span>
</td>
<td class="nump">6,895<span></span>
</td>
<td class="nump">11,470<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValueOfEarnoutSharesLiability', window );">Change in fair value of earnout shares liability</a></td>
<td class="nump">1,263<span></span>
</td>
<td class="num">(955)<span></span>
</td>
<td class="nump">510<span></span>
</td>
<td class="num">(3,854)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValueOfWarrantLiability', window );">Change in fair value of warrant liabilities</a></td>
<td class="nump">1,513<span></span>
</td>
<td class="num">(724)<span></span>
</td>
<td class="nump">620<span></span>
</td>
<td class="num">(580)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValueOfConvertibleNotes', window );">Change in fair value of convertible notes</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">40<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_InterestExpenseNonoperating', window );">Interest expense</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">1,016<span></span>
</td>
<td class="nump">48<span></span>
</td>
<td class="nump">4,267<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax', window );">Foreign exchange (gain) loss</a></td>
<td class="num">(2)<span></span>
</td>
<td class="num">(27)<span></span>
</td>
<td class="nump">2<span></span>
</td>
<td class="num">(10)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherIncome', window );">Other gains</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(195)<span></span>
</td>
<td class="num">(122)<span></span>
</td>
<td class="num">(195)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax', window );">Loss on equity securities</a></td>
<td class="nump">2<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">2<span></span>
</td>
<td class="nump">2<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1', window );">Loss before income taxes</a></td>
<td class="num">(5,375)<span></span>
</td>
<td class="num">(4,225)<span></span>
</td>
<td class="num">(7,995)<span></span>
</td>
<td class="num">(11,100)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(101)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Net loss and comprehensive loss</a></td>
<td class="num">(5,375)<span></span>
</td>
<td class="num">(4,225)<span></span>
</td>
<td class="num">(7,995)<span></span>
</td>
<td class="num">(10,999)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest', window );">Less: Net loss attributable to redeemable noncontrolling interest</a></td>
<td class="num">(78)<span></span>
</td>
<td class="num">(169)<span></span>
</td>
<td class="num">(177)<span></span>
</td>
<td class="num">(439)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OciEquityMethodInvestmentBeforeTaxParent', window );">Net loss and comprehensive loss attributable to the Company</a></td>
<td class="num">$ (5,297)<span></span>
</td>
<td class="num">$ (4,056)<span></span>
</td>
<td class="num">$ (7,818)<span></span>
</td>
<td class="num">$ (10,560)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_EarningsLossPerShareBasicAndDiluted', window );">Loss per common share, basic and diluted</a></td>
<td class="num">$ (0.11)<span></span>
</td>
<td class="num">$ (0.11)<span></span>
</td>
<td class="num">$ (0.17)<span></span>
</td>
<td class="num">$ (0.29)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Weighted average common shares outstanding, basic and diluted</a></td>
<td class="nump">45,893,738<span></span>
</td>
<td class="nump">35,160,333<span></span>
</td>
<td class="nump">41,777,986<span></span>
</td>
<td class="nump">33,421,185<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInFairValueOfConvertibleNotes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in fair value of convertible notes.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInFairValueOfConvertibleNotes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInFairValueOfEarnoutSharesLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInFairValueOfEarnoutSharesLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInFairValueOfWarrantLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in fair value of warrant liability.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInFairValueOfWarrantLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_EarningsLossPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents earnings loss per share basic and diluted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_EarningsLossPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ExplorationExpenditures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents exploration expenditures.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ExplorationExpenditures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents income loss from continuing operations before income taxes extraordinary items noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents total weighted average number of share outstanding basic and diluted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(24))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 942<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(26))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(22))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-5<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -SubTopic 10<br> -Topic 810<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-20<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(23))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 942<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(25))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(21))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 21<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-21<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481175/810-10-55-4K<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(7))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 35<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482014/830-20-35-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481956/830-20-45-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481926/830-20-50-1<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 17<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481839/830-10-45-17<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ForeignCurrencyTransactionGainLossBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 270<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (ee)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 12<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 231<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 9<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 8<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482685/740-10-50-10<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -SubTopic 20<br> -Topic 740<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482659/740-20-45-2<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -SubTopic 10<br> -Topic 235<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpenseNonoperating">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of interest expense classified as nonoperating.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpenseNonoperating</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LaborAndRelatedExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LaborAndRelatedExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OciEquityMethodInvestmentBeforeTaxParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax, of other comprehensive income (loss) (OCI) for proportionate share of equity method investee's OCI, attributable to parent.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 323<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 35<br> -Paragraph 18<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481725/323-10-35-18<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1A<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 19<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-19<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OciEquityMethodInvestmentBeforeTaxParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpensesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, before tax and after adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (e)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (f)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherGeneralExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of general expenses not normally included in Other Operating Costs and Expenses.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 48<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(6))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherGeneralExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherIncome">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue and income classified as other.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 320<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 6<br> -Subparagraph (SX 210.12-14(Column E)(2))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 320<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 6<br> -Subparagraph (SX 210.12-14(Column E)(Footnote 4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 320<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 6<br> -Subparagraph (SX 210.12-14(Column E)(Footnote 6)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(1)(c))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherIncome</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfessionalFees">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 48<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 946<br> -SubTopic 830<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 3<br> -Subparagraph (k)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479105/946-220-45-3<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProfessionalFees</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>CASH FLOWS FROM OPERATING ACTIVITIES</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss for the period</a></td>
<td class="num">$ (7,995)<span></span>
</td>
<td class="num">$ (10,999)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments for:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValueOfEarnoutShareLiability', window );">Change in valuation of earnout shares liability</a></td>
<td class="nump">510<span></span>
</td>
<td class="num">(3,854)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInValuationOfWarrantLiabilities', window );">Change in valuation of warrant liabilities</a></td>
<td class="nump">620<span></span>
</td>
<td class="num">(580)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_OtheroperatingGainsLosses', window );">Other gain</a></td>
<td class="num">(122)<span></span>
</td>
<td class="num">(195)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EmployeeBenefitsAndShareBasedCompensation', window );">Share based compensation</a></td>
<td class="nump">788<span></span>
</td>
<td class="nump">2,779<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAdjustmentOfWarrants', window );">Fair value of private placement warrants</a></td>
<td class="nump">144<span></span>
</td>
<td class="nump">102<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccretionExpense', window );">Accretion of convertible debt</a></td>
<td class="nump">43<span></span>
</td>
<td class="nump">4,267<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValueOfConvertibleNote', window );">Change in fair value of convertible note</a></td>
<td class="nump">40<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_FairValueOfCommitmentSharesIssued', window );">Yorkville share issuances</a></td>
<td class="nump">80<span></span>
</td>
<td class="nump">78<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_Depreciation', window );">Depreciation</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">2<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_UnrealizedGainLossOnInvestments', window );">Unrealized loss on equity securities</a></td>
<td class="nump">2<span></span>
</td>
<td class="nump">2<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseImpairmentLoss', window );">Non-cash lease activity</a></td>
<td class="num">(4)<span></span>
</td>
<td class="nump">21<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities', window );">&#160;</a></td>
<td class="num">(5,891)<span></span>
</td>
<td class="num">(8,377)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Change in working capital items:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidExpense', window );">Prepaid expenses</a></td>
<td class="nump">836<span></span>
</td>
<td class="nump">1,124<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities', window );">Accounts payable and accrued liabilities</a></td>
<td class="num">(820)<span></span>
</td>
<td class="nump">1,637<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Net cash used in operating activities</a></td>
<td class="num">(5,875)<span></span>
</td>
<td class="num">(5,616)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>CASH FLOWS FROM INVESTING ACTIVITIES</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireOtherInvestments', window );">Acquisition of land and buildings</a></td>
<td class="num">(5)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Net cash used in investing activities</a></td>
<td class="num">(5)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>CASH FLOWS FROM FINANCING ACTIVITIES</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from issuance of capital stock</a></td>
<td class="nump">14,516<span></span>
</td>
<td class="nump">3,663<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProceedsFromRelatedPartyDebt', window );">Related party debt draws</a></td>
<td class="nump">504<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RepaymentsOfRelatedPartyDebt', window );">Related party debt repayments</a></td>
<td class="num">(504)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RepaymentsOfConvertibleDebt', window );">Convertible debt repayments</a></td>
<td class="num">(7,223)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_PaymentsOfStockIssuanceCost', window );">Share issue costs</a></td>
<td class="num">(2,131)<span></span>
</td>
<td class="num">(194)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Net cash provided by financing activities</a></td>
<td class="nump">5,162<span></span>
</td>
<td class="nump">3,469<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">Change in cash and cash equivalents during period</a></td>
<td class="num">(718)<span></span>
</td>
<td class="num">(2,147)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash and cash equivalents, beginning of period</a></td>
<td class="nump">2,012<span></span>
</td>
<td class="nump">2,341<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Cash and cash equivalents, end of period</a></td>
<td class="nump">1,294<span></span>
</td>
<td class="nump">194<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental cash flow information:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ConversionsOfDebtForCommonShares', window );">Conversion of debt for common shares</a></td>
<td class="nump">501<span></span>
</td>
<td class="nump">13,121<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ValueOfWarrantsIssued', window );">Value of warrants issued</a></td>
<td class="nump">2,262<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_InterestPaidNet', window );">Interest paid</a></td>
<td class="nump">$ 4<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_AdjustmentsToReconcileNetIncomeLossesToCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInFairValueOfConvertibleNote">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in fair value of convertible note.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInFairValueOfConvertibleNote</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInFairValueOfEarnoutShareLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in fair value of earnout share liability.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInFairValueOfEarnoutShareLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangeInValuationOfWarrantLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in valuation of warrant liabilities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangeInValuationOfWarrantLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ConversionsOfDebtForCommonShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents conversions of debt for common shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ConversionsOfDebtForCommonShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_FairValueOfCommitmentSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents fair value of commitment shares issued.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_FairValueOfCommitmentSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_OtheroperatingGainsLosses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents otheroperating gains losses.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_OtheroperatingGainsLosses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_PaymentsOfStockIssuanceCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents payments of stock issuance cost.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_PaymentsOfStockIssuanceCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ValueOfWarrantsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents value of warrants issued.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ValueOfWarrantsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccretionExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 420<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 35<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481639/420-10-35-4<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 420<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccretionExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 8<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 24<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 24<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -SubTopic 230<br> -Topic 830<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477401/830-230-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Depreciation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Depreciation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeBenefitsAndShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expense for employee benefit and equity-based compensation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeBenefitsAndShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAdjustmentOfWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expense (income) related to adjustment to fair value of warrant liability.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 25<br> -Paragraph 13<br> -SubTopic 10<br> -Topic 480<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481766/480-10-25-13<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAdjustmentOfWarrants</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-17<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (e)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482913/230-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPaidNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 24<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 24<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 24<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 25<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
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<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseImpairmentLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of loss from impairment of right-of-use asset from operating lease.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 25<br> -Paragraph 6<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479365/842-20-25-6<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseImpairmentLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireOtherInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to acquire investments classified as other.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireOtherInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromRelatedPartyDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromRelatedPartyDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfConvertibleDebt</td>
</tr>
<tr>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfRelatedPartyDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfRelatedPartyDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SupplementalCashFlowInformationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SupplementalCashFlowInformationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnrealizedGainLossOnInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of unrealized gain (loss) on investment.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnrealizedGainLossOnInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
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<DOCUMENT>
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<title></title>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Shareholders' Equity (Deficit) and Redeemable Noncontrolling Interest (unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Retained Earnings [Member]</div></th>
<th class="th"><div>AOCI Attributable to Parent [Member]</div></th>
<th class="th"><div>Total</div></th>
<th class="th"><div>Redeemable Noncontrolling Interest [Member]</div></th>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Jun. 30, 2023</a></td>
<td class="nump">$ 140,421<span></span>
</td>
<td class="num">$ (150,477)<span></span>
</td>
<td class="num">$ (911)<span></span>
</td>
<td class="num">$ (10,967)<span></span>
</td>
<td class="nump">$ 2,100<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Jun. 30, 2023</a></td>
<td class="nump">31,202,131<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws</a></td>
<td class="nump">$ 1,451<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">1,451<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws (in shares)</a></td>
<td class="nump">462,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions</a></td>
<td class="nump">$ 13,121<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">13,121<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions (in shares)</a></td>
<td class="nump">3,673,435<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Share issuance costs</a></td>
<td class="num">$ (194)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(194)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueStockDividend', window );">Option liability valuations</a></td>
<td class="num">(206)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(206)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueIssuedForServices', window );">Exchange of Class B shares</a></td>
<td class="nump">$ 89<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">89<span></span>
</td>
<td class="num">(89)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Exchange of Class B shares (in shares)</a></td>
<td class="nump">243,692<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition', window );">Share-based compensation</a></td>
<td class="nump">$ 2,779<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">2,779<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Loss for the period</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(10,560)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(10,560)<span></span>
</td>
<td class="num">(439)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueEquityPlacement', window );">Equity placements</a></td>
<td class="nump">$ 2,393<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">2,393<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesEquityPlacement', window );">Equity placement (in shares)</a></td>
<td class="nump">663,432<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Option exercises</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Option exercises (in shares)</a></td>
<td class="nump">7,800<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2024</a></td>
<td class="nump">$ 159,854<span></span>
</td>
<td class="num">(161,037)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="num">(2,094)<span></span>
</td>
<td class="nump">1,572<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2024</a></td>
<td class="nump">36,252,990<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Dec. 31, 2023</a></td>
<td class="nump">$ 151,810<span></span>
</td>
<td class="num">(156,981)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="num">(6,082)<span></span>
</td>
<td class="nump">1,830<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2023</a></td>
<td class="nump">34,091,844<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws</a></td>
<td class="nump">$ 622<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">622<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws (in shares)</a></td>
<td class="nump">242,500<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions</a></td>
<td class="nump">$ 4,815<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">4,815<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions (in shares)</a></td>
<td class="nump">1,674,954<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Share issuance costs</a></td>
<td class="num">$ (55)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(55)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueStockDividend', window );">Option liability valuations</a></td>
<td class="num">(206)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(206)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueIssuedForServices', window );">Exchange of Class B shares</a></td>
<td class="nump">$ 89<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">89<span></span>
</td>
<td class="num">(89)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Exchange of Class B shares (in shares)</a></td>
<td class="nump">243,692<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition', window );">Share-based compensation</a></td>
<td class="nump">$ 2,779<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">2,779<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Loss for the period</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(4,056)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(4,056)<span></span>
</td>
<td class="num">(169)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2024</a></td>
<td class="nump">$ 159,854<span></span>
</td>
<td class="num">(161,037)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="num">(2,094)<span></span>
</td>
<td class="nump">1,572<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2024</a></td>
<td class="nump">36,252,990<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Jun. 30, 2024</a></td>
<td class="nump">$ 163,823<span></span>
</td>
<td class="num">(161,912)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="nump">$ 1,000<span></span>
</td>
<td class="nump">1,534<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Jun. 30, 2024</a></td>
<td class="nump">38,062,647<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">38,062,647<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws</a></td>
<td class="nump">$ 3,191<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 3,191<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws (in shares)</a></td>
<td class="nump">1,919,250<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions</a></td>
<td class="nump">$ 501<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">501<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments', window );">Debt conversions (in shares)</a></td>
<td class="nump">258,347<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Share issuance costs</a></td>
<td class="num">$ (2,133)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(2,133)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition', window );">Share-based compensation</a></td>
<td class="nump">788<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">788<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Loss for the period</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(7,818)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(7,818)<span></span>
</td>
<td class="num">(177)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueEquityPlacement', window );">Equity placements</a></td>
<td class="nump">$ 9,218<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">9,218<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesEquityPlacement', window );">Equity placement (in shares)</a></td>
<td class="nump">6,369,278<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueStockWarrantsExercised', window );">Warrant exercises</a></td>
<td class="nump">$ 403<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">403<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised', window );">Warrant exercises (in shares)</a></td>
<td class="nump">230,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Option exercises</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Option exercises (in shares)</a></td>
<td class="nump">512<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares', window );">Redemptions of vested shares</a></td>
<td class="nump">$ 119<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 119<span></span>
</td>
<td class="num">(119)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares', window );">Redemptions of vested shares (in shares)</a></td>
<td class="nump">348,085<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueStockWarrantsIssued', window );">Issuance of warrants</a></td>
<td class="nump">$ 2,262<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">2,262<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2025</a></td>
<td class="nump">$ 178,172<span></span>
</td>
<td class="num">(169,730)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="nump">$ 7,531<span></span>
</td>
<td class="nump">1,238<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2025</a></td>
<td class="nump">47,188,119<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">47,188,119<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Dec. 31, 2024</a></td>
<td class="nump">$ 172,235<span></span>
</td>
<td class="num">(164,433)<span></span>
</td>
<td class="num">(911)<span></span>
</td>
<td class="nump">$ 6,891<span></span>
</td>
<td class="nump">1,316<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2024</a></td>
<td class="nump">43,671,287<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws</a></td>
<td class="nump">$ 1,328<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">1,328<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws', window );">Yorkville equity facility draws (in shares)</a></td>
<td class="nump">709,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Share issuance costs</a></td>
<td class="num">$ (800)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(800)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition', window );">Share-based compensation</a></td>
<td class="nump">6<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">6<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Loss for the period</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(5,297)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(5,297)<span></span>
</td>
<td class="num">(78)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueEquityPlacement', window );">Equity placements</a></td>
<td class="nump">$ 5,000<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">5,000<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesEquityPlacement', window );">Equity placement (in shares)</a></td>
<td class="nump">2,577,320<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueStockWarrantsExercised', window );">Warrant exercises</a></td>
<td class="nump">$ 403<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">403<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised', window );">Warrant exercises (in shares)</a></td>
<td class="nump">230,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Option exercises</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Option exercises (in shares)</a></td>
<td class="nump">512<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2025</a></td>
<td class="nump">$ 178,172<span></span>
</td>
<td class="num">$ (169,730)<span></span>
</td>
<td class="num">$ (911)<span></span>
</td>
<td class="nump">$ 7,531<span></span>
</td>
<td class="nump">$ 1,238<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2025</a></td>
<td class="nump">47,188,119<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">47,188,119<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueEquityPlacement">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value equity placement.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueEquityPlacement</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value redemptions of vested shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueRedemptionsOfVestedShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value shares conversion of convertible securities net of adjustments.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueSharesConversionOfConvertibleSecuritiesNetOfAdjustments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueSharesEquityPlacement">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value shares equity placement.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueSharesEquityPlacement</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value shares redemptions of vested shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueSharesRedemptionsOfVestedShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value shares stock warrants exercised.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueSharesStockWarrantsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value shares yorkville equity facility draws.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueSharesYorkvilleEquityFacilityDraws</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueStockWarrantsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value stock warrants exercised.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueStockWarrantsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueStockWarrantsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value stock warrants issued.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueStockWarrantsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents stock issued during period value yorkville equity facility draws.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_StockIssuedDuringPeriodValueYorkvilleEquityFacilityDraws</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -SubTopic 10<br> -Topic 505<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.6-05(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-2<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(4)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-04(16)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1<br><br>Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(7))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 9<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 805<br> -SubTopic 60<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (g)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 323<br> -Name 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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
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<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesIssuedForServices</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of share options (or share units) exercised during the current period.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The net amount of stock issued during the period upon the conversion of convertible securities, net of adjustments (for example, to additional paid in capital) including the write-off of an equity component recognized to record the convertible debt instrument as two separate components - a debt component and an equity component. This item is meant to disclose the value of shares issued on conversion of convertible securities that were recorded as two separate (debt and equity) components.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueIssuedForServices</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -SubTopic 10<br> -Topic 505<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 946<br> -SubTopic 830<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479168/946-830-55-11<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 205<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478009/946-205-45-4<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 505<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478448/946-505-50-2<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(4)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueStockDividend">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Value of stock issued to shareholders as a dividend during the period.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Value of stock issued as a result of the exercise of stock options.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
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<td>us-gaap_</td>
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<td>credit</td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Pay vs Performance Disclosure - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_ecd_PvpTable', window );"><strong>Pay vs Performance Disclosure [Table]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net Income (Loss)</a></td>
<td class="num">$ (5,297)<span></span>
</td>
<td class="num">$ (4,056)<span></span>
</td>
<td class="num">$ (7,818)<span></span>
</td>
<td class="num">$ (10,560)<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-K<br> -Number 229<br> -Section 402<br> -Subsection v<br> -Paragraph 1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Insider Trading Arrangements<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<td class="text">&#160;<span></span>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
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<th class="th" colspan="1">9 Months Ended</th>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">NioCorp
Developments Ltd. (&#8220;we,&#8221; &#8220;us,&#8221; &#8220;our,&#8221; &#8220;NioCorp&#8221; or the &#8220;Company&#8221;)
was incorporated on February 27, 1987, under the laws of the Province of British Columbia and currently operates in <span id="xdx_900_eus-gaap--NumberOfReportableSegments_dxL_uNumber_c20240701__20250331_zpzwVddMG7hc" title="Number of reportable segments::XDX::1"><span style="-sec-ix-hidden: xdx2ixbrl0660">one</span></span> reportable
operating segment consisting of exploration and development of mineral deposits in North America, specifically, the Company&#8217;s
niobium, scandium, and titanium project (the &#8220;Elk Creek Project&#8221;) located in southeastern Nebraska.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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Company currently earns no operating revenues and will require additional capital in order to advance the Elk Creek Project to
construction and commercial operation. As further discussed in Note 3, these matters raised substantial doubt about the Company&#8217;s
ability to continue as a going concern, and the Company is dependent upon the generation of profits from mineral properties, obtaining
additional financing and maintaining continued support from its shareholders and creditors.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
interim condensed consolidated financial statements have been prepared on a going concern basis that contemplates the realization
of assets and discharge of liabilities at their carrying values in the normal course of business for the foreseeable future. These
financial statements do not reflect any adjustments that may be necessary if the Company is unable to continue as a going concern.</span></p>

<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Topic 275<br> -Publisher FASB<br> -URI https://asc.fasb.org/275/tableOfContent<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -SubTopic 10<br> -Topic 275<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482861/275-10-50-1<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>BASIS OF PRESENTATION<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_BasisOfAccounting', window );">BASIS OF PRESENTATION</a></td>
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    <td id="xdx_863_zCzZ4rG7QJQ9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basis
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting
principles of the United States of America (&#8220;U.S. GAAP&#8221;) and the rules and regulations of the Securities and Exchange
Commission (&#8220;SEC&#8221;). The interim condensed consolidated financial statements include the consolidated accounts of the
Company and its wholly owned subsidiaries with all significant intercompany transactions eliminated. The accounting policies followed
in preparing these interim condensed consolidated financial statements are those used by the Company as set out in the audited
consolidated financial statements for the year ended June 30, 2024. Certain transactions include reference to Canadian dollars
(&#8220;C$&#8221;) where applicable.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the opinion of management, all adjustments considered necessary (including normal recurring adjustments) for a fair statement
of the financial position, results of operations, and cash flows as of March 31, 2025, and for all periods presented, have been
included in these interim condensed consolidated financial statements. Certain information and footnote disclosures normally included
in the consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to appropriate
SEC rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the audited
consolidated financial statements for the year ended June 30, 2024. The interim results are not necessarily indicative of results
for the full year ending June 30, 2025, or future operating periods.</span></p>

<p id="xdx_859_zq8owm1n5B25" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zYzGVE81EFQ1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td id="xdx_862_zRjSCAi4bsq9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Recent
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

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and Not Effective</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2023, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;)
2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU expand public
entities&#8217; segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the
Chief Operating Decision Maker and included within each reported measure of segment profit or loss, an amount and description
of its composition for other segment items, and interim disclosures of a reportable segment&#8217;s profit or loss and assets.
The ASU will be effective for our annual report for the period ending June 30, 2025, and for interim <span style="font: 10pt Times New Roman, Times, Serif">period reports beginning
thereafter. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>



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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the
transparency and decision usefulness of income tax disclosures primarily through changes to the rate reconciliation and income
taxes paid information. ASU 2023-09&#160;is effective for our annual report for the period ending June 30, 2027, and for interim
period reports beginning thereafter. Early adoption is permitted and the amendments should be applied prospectively; however,
retrospective application is permitted. We are currently evaluating the impact of this ASU on our consolidated financial statements
and related disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures
(Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires the disclosure of additional information
related to certain costs and expenses, including amounts of inventory purchases, employee compensation, and depreciation and amortization
included in each income statement line item. This ASU also requires disclosure of the total amount of selling expenses and our
definition of selling expenses. This ASU is effective for our annual report for the period ending June 30, 2028, and for interim
period reports beginning thereafter on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating
the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, new accounting pronouncements are issued by the FASB that are adopted by the Company as of the specified effective
date. Unless otherwise discussed, management believes that the impact of recently issued standards did not or will not have a
material impact on the Company&#8217;s consolidated financial statements upon adoption.</span></p>

<p id="xdx_85B_zlZ2SpKmfv1b" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>

<p id="xdx_842_eus-gaap--UseOfEstimates_z71Bubq5JSH4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</span></td>
    <td id="xdx_861_zdYf8kkPbvTi" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Use
    of Estimates</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date
of the financial statements, and the reported amounts of expenses during the reporting period. The Company regularly evaluates
estimates and assumptions related to the carrying value of long-term assets, deferred income tax assets and related valuations,
liabilities related to the April 2024 Notes, Earnout Shares, Private Warrants, and November Private Warrants (each, as defined
below), and share-based compensation. The Company bases its estimates and assumptions on current facts, historical experience,
and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making
judgments about the other sources. The actual results experienced by the Company may differ materially and adversely from the
Company&#8217;s estimates. To the extent there are material differences between estimates and the actual results, future results
of operations will be affected.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company acquired a federal income tax payable of $<span id="xdx_90C_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_pn3n3_c20240701__20250331_zOoYBcaMwT4k" title="Federal income tax payable">443</span> in connection with the GXII Transaction (as defined below). As a result
of post-transaction losses at Elk Creek Resources Corp. (&#8220;ECRC&#8221;), a partial release of the valuation allowance attributed
to the reduction of the acquired federal income tax payable of $<span id="xdx_900_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3n3_di_c20230701__20240331_zb6y6xzWZZv8" title="Income tax payable">101</span> was recorded as an income tax benefit in the condensed consolidated
statement of operations and comprehensive loss for the nine months ended March 31, 2024. The Company maintains a full valuation
allowance against future income tax assets as it is more likely than not that all of the assets will not be realized.</span></p>

<p id="xdx_853_znrVIgTwydTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<p id="xdx_84C_eus-gaap--EarningsPerSharePolicyTextBlock_zQn1wmE6i4qh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td id="xdx_86C_zCDr6ddnVPu1" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basic
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. <span id="xdx_8B4_z3WPG2KSByGh">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share
attributable to common shareholders:</span></span></p>









<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td colspan="2" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td></tr>
<tr style="vertical-align: bottom">
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Ended March 31,</td><td>&#160;</td><td>&#160;</td>
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Ended March 31,</td><td>&#160;</td></tr>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Loss per Common Share outstanding &#8211; basic and diluted</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_985_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20250101__20250331_z0cftbru2gql" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.11</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240101__20240331_z7XgFiuWkdy8" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.11</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240701__20250331_zXQyd8FW4PGb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.17</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_984_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20230701__20240331_zs6yfh3oSktd" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.29</td><td style="padding-bottom: 2pt; text-align: left">)</td></tr>
</table>

<p id="xdx_8AE_zWHHH8IQ5bTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following common shares, no par value, of the Company (&#8220;Common Shares&#8221;) underlying options to purchase Common Shares
(&#8220;Options&#8221;), Common Share purchase warrants (&#8220;Warrants&#8221;), and outstanding convertible debt were&#160;antidilutive&#160;due
to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the three-month
periods indicated below.</span></p>

<p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden">Schedule of excluded from the dilutive securities</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
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    exercisable into one Common Share.</span></td></tr>
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<p id="xdx_8A3_zE01D2VS8jrb" style="margin-top: 0; margin-bottom: 0"></p>

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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 235<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/235/tableOfContent<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>GOING CONCERN<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubstantialDoubtAboutGoingConcernTextBlock', window );">GOING CONCERN</a></td>
<td class="text"><p id="xdx_803_eus-gaap--SubstantialDoubtAboutGoingConcernTextBlock_zjlJUzONHnT" style="margin-top: 0; margin-bottom: 0">&#160;</p>

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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</span></td>
    <td id="xdx_82F_z0BgpKaJRpni" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">GOING
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company incurred a loss of $<span id="xdx_906_eus-gaap--NetIncomeLoss_iN_pn3n3_di_uUSD_c20240701__20250331_zeM39FfYDk9e" title="Net loss">7,818</span>
for the nine months ended March 31, 2025 (nine months ended March 31, 2024 - $<span id="xdx_901_eus-gaap--NetIncomeLoss_iN_pn3n3_di_c20230701__20240331_zoced8GJ0jM7" title="Net loss">10,560</span>)
and had an accumulated deficit of $<span id="xdx_901_eus-gaap--InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_iI_pn3n3_uUSD_c20250331_zZyOKHoaFzL6" title="Capital deficit">169,730</span>
as of March 31, 2025. As a development stage issuer, the Company has not yet commenced its mining operations and accordingly
does not generate any revenue. As of March 31, 2025, the Company had cash of $<span id="xdx_902_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_uUSD_c20250331_zTTu7lYW8mW8" title="Cash">1,294</span>,
which will not be sufficient to fund normal operations for the next twelve months from the date these interim condensed consolidated financial statements are issued. These conditions and events raise
substantial doubt about the Company&#8217;s ability to continue as a going concern.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
response to these conditions and events, the Company plans to obtain additional financing and while it has been successful in doing so in the past, there can be no assurance it will be able to do so in
the future. The Company&#8217;s plans to obtain additional financing have not been finalized, are subject to market conditions,
and are not within </span></p>









<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">the Company&#8217;s control and therefore cannot be deemed probable. Further, the Company will be required
to raise additional funds for the construction and commencement of operations. As a result, the Company has concluded that management&#8217;s
plans do not alleviate substantial doubt about the Company&#8217;s ability to continue as a going concern.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
interim condensed consolidated financial statements do not include any adjustments related to the recoverability and classification
of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.</span></p>

<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure when substantial doubt is raised about the ability to continue as a going concern. Includes, but is not limited to, principal conditions or events that raised substantial doubt about the ability to continue as a going concern, management's evaluation of the significance of those conditions or events in relation to the ability to meet its obligations, and management's plans that alleviated or are intended to mitigate the conditions or events that raise substantial doubt about the ability to continue as a going concern.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 205<br> -SubTopic 40<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/205-40/tableOfContent<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>MINERAL PROPERTIES<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_srt_ExtractiveIndustriesAbstract', window );"><strong>Extractive Industries [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_MineralIndustriesDisclosuresTextBlock', window );">MINERAL PROPERTIES</a></td>
<td class="text"><p id="xdx_80E_eus-gaap--MineralIndustriesDisclosuresTextBlock_z2BLVfqkVd5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.</span></td>
    <td id="xdx_825_zpCptdxBMrgj" style="font: 10pt Times New Roman, Times, Serif; padding-left: 0.25in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">MINERAL
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the nine months ended March 31, 2025, the Company completed negotiations with landowners in Nebraska and entered into contract
amendments which extended the option periods by approximately five years for each option to purchase agreement (&#8220;OTP&#8221;)
covering six parcels of land for project construction and operation which the Company does not already own. The Company paid $196
upon closing of the OTP extensions and will make periodic payments totaling $206 over the extension period.</span></p>

<span></span>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>ACCOUNTS PAYABLE AND ACCRUED LIABILITIES<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(24))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 720<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483384/720-30-45-1<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DEBT<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
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    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Principal and interest converted</td><td style="padding-bottom: 1pt">&#160;</td>
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<p id="xdx_8AB_z3E9DsarTXE4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>







<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<p id="xdx_89F_eus-gaap--ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_ztsuvhjVtZmk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B0_zYt3EFE3oUue">The
following table discloses the components of interest expense associated with the Convertible Debentures</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
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    <td colspan="6" style="text-align: center">For the Nine Months Ended <br/>
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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 48%; text-align: left; padding-left: 0.25in">Contractual interest</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_984_ecustom--ContractualInterest_pn3n3_uUSD_c20250101__20250331_zzgHHb234O1i" style="width: 10%; text-align: right" title="Contractual interest"><span style="-sec-ix-hidden: xdx2ixbrl0833">-</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20250101__20250331_zS18wAdgHx8g" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"><span style="-sec-ix-hidden: xdx2ixbrl0841">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240101__20240331_z6ViXviohUlb" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs">971</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; padding-left: 0.25in">Total</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AccretionExpense_pn3n3_uUSD_c20250101__20250331_zwVAKuZIas2i" style="border-bottom: Black 2pt solid; text-align: right" title="Total"><span style="-sec-ix-hidden: xdx2ixbrl0849">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98D_eus-gaap--AccretionExpense_pn3n3_uUSD_c20240101__20240331_zKhsHooK5k51" style="border-bottom: Black 2pt solid; text-align: right" title="Total">1,016</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_980_eus-gaap--AccretionExpense_pn3n3_dxL_uUSD_c20240701__20250331_zpeoJVFRV8G9" style="border-bottom: Black 2pt solid; text-align: right" title="Total::XDX::43"><span style="-sec-ix-hidden: xdx2ixbrl0853">43</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
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<p id="xdx_8A2_zXFsLpoPpwxj" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">April
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
April 12, 2024, the Company issued and sold to Yorkville and Lind Global Fund II LP (&#8220;Lind II&#8221;, and together with
Yorkville, the &#8220;April 2024 Purchasers&#8221;) $<span id="xdx_900_eus-gaap--DebtInstrumentRepaidPrincipal_pn6n6_c20240410__20240412__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zWZ96uDJ1LNd" title="Aggregate principal amount">8.0</span> million aggregate principal amount of unsecured notes (the &#8220;April
2024 Notes&#8221;), pursuant to a securities purchase agreement, dated April 11, 2024 (the &#8220;April 2024 Purchase Agreement&#8221;),
between the Company and each of the April 2024 Purchasers. The Company also issued to the April 2024 Purchasers, in proportion
to the aggregate principal amount of April 2024 Notes issued to each April 2024 Purchaser, Warrants (the &#8220;April 2024 Warrants&#8221;)
to purchase up to <span id="xdx_901_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240410__20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zzCYJJXWhqwh" title="Number of shares">615,385</span> Common Shares, which are equal to <span id="xdx_901_eus-gaap--InvestmentInterestRate_iI_pid_dp_uPure_c20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zWHR3oVJuUC6" title="Number of shares">25</span>% of the aggregate principal amount of April 2024 Notes issued to
the April 2024 Purchasers divided by the exercise price of $3.25, subject to any adjustment to give effect to any stock dividend,
stock split or recapitalization.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_897_eus-gaap--ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_znT8pIrL4lxj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B5_zNm5iYNaqKoe">The
changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Notes:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Balance as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--FairValueHedgeAssetsAtFairValue_iS_pn3n3_uUSD_c20240701__20250331_zf8QPA9juSu8" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">7,089</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in">Principal payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--DebtInstrumentPeriodicPayment_iN_pn3n3_di_uUSD_c20240701__20250331_zWFDZCj70qz5" style="text-align: right" title="Principal payments">(7,129</td><td style="text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_ecustom--ChangeInFairValue_pn3n3_uUSD_c20240701__20250331_zldSClW4I4pe" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">40</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Balance as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_eus-gaap--FairValueHedgeAssetsAtFairValue_iE_pn3n3_uUSD_c20240701__20250331_zyIzKAw3DEWd" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"><span style="-sec-ix-hidden: xdx2ixbrl0871">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

<p id="xdx_8AD_zibvth5PIxxh" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p id="xdx_89D_eus-gaap--ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_zbgwrANzj9Va" style="text-indent: 40pt; margin-top: 0; margin-bottom: 0"><span id="xdx_8BD_z6jYoWuBwGo8" style="display: none; visibility: hidden">Schedule of change in the April 2024 Warrant liability</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Warrant Liability:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--OtherLiabilitiesFairValueDisclosure_iS_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zsCH2arTUxMd" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">298</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--FairValueAdjustmentOfWarrants_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zyeEZlSJ5WZ8" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">42</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iE_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZDMsiVhYY98" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024">340</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
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<p id="xdx_8A8_zouYU61WYF3j" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
September 4, 2024 and October 3, 2024, NioCorp entered into (i) consents and waivers (the &#8220;2024 Yorkville
Consents&#8221;) to the April 2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement and (ii)
consents and waivers (together with the 2024 Yorkville Consents, the &#8220;2024 Note Consents&#8221;) to the April 2024
Notes issued and sold to Lind II pursuant to the April 2024 Purchase Agreement. The 2024 Note Consents, among other things,
extended and deferred certain monthly payments and extended the maturity of the April 2024 Notes until January 31, 2025. On
January 3, 2025, the Company entered into a consent and waiver (the &#8220;January Yorkville Consent&#8221;) to the April
2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement. The January Yorkville Consent, among
other things, deferred the due date for the amounts
that would otherwise have been due to Yorkville on January 1, 2025 to the maturity date and extended the maturity date to February
17, 2025, and prospectively waived any term of the April 2024 Notes that would otherwise be triggered upon a failure of the Company
to pay to Yorkville the remainder of the amount due on January 1, 2025.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span style="font: 10pt Times New Roman, Times, Serif">All
remaining amounts due to Lind II ($176) and Yorkville ($1,000) under the April 2024 Notes were repaid on January 6, 2025, and
February 7, 2025, respectively.</span></span></p>

<span></span>
</td>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CLASS B COMMON STOCK OF ECRC<br></strong></div></th>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfClassBCommonStockOfECRCTextBlock', window );">CLASS B COMMON STOCK OF ECRC</a></td>
<td class="text"><p id="xdx_800_ecustom--ScheduleOfClassBCommonStockOfECRCTextBlock_zqwVt2mLWRf4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_828_ziW6jIGTKPl2">CLASS
    B COMMON STOCK OF ECRC</span></span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
shares of Class B common stock of ECRC, an indirect, majority-owned subsidiary of NioCorp formerly known as GX Acquisition Corp.
II (&#8220;GXII&#8221;), include rights under which the holders may exchange such shares into Common Shares. Certain of such shares
were vested as of the Closing (as defined below) and are exchangeable at any time, from time to time, until the tenth anniversary
of the Closing Date (as defined below) (the &#8220;Vested Shares&#8221;) and certain of such shares are subject to certain vesting
conditions (the &#8220;Earnout Shares&#8221;).</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Earnout
Shares</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_890_ecustom--ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_zgJJ5Nnde2Pk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8BC_z4gNwmGe0o78">The
Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td>
    <td style="text-align: justify"></td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">March 31, <br/>2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">June 30, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 1%">&#160;</td>
    <td style="width: 33%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_989_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250531__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zW7oNfbvoMB" style="width: 12%; text-align: center" title="Closing common share price">$1.97</td><td style="width: 1%">&#160;</td>
    <td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zBOa88lv04Dk" style="width: 12%; text-align: center" title="Closing common share price">$1.73</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Term (expiry)</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_906_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z7TXtWEBmSS" title="Term (expiry)">March 17, 2033</span></td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_90E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_znu6OAxdpjnf" title="Term (expiry)">March 17, 2033</span></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td>
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z3YQzsdRJoY" style="text-align: center" title="Implied volatility of public warrants">66.0%</td><td>&#160;</td>
    <td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zblp4qS8ZDAb" style="text-align: center" title="Implied volatility of public warrants">65.0%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zaSqn38L3mjc" style="text-align: center" title="Risk-free rate">4.13%</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zNRqOxhsC6sa" style="text-align: center" title="Risk-free rate">4.35%</td></tr>
</table>

<p id="xdx_8AC_zdzPlrlejPib" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p id="xdx_895_ecustom--ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_zTwPDsKCUG51" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B7_z5bAAahTvpJ8">The
following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period
ended March 31, 2025</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 70%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 52%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--ServicingLiabilityAtFairValueAmount_iS_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z8wXaXijv4Ti" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">3,817</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ServicingLiabilityAtFairValueAdditions_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zEIYHzjr7jT2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">510</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98A_eus-gaap--ServicingLiabilityAtFairValueAmount_iE_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZ9KIE2jLI7l" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024">4,327</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

<p id="xdx_8A4_zdtxkDm9rdvj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Vested
Shares</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
December 12, 2024, and December 20, 2024, <span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241212_zR3Hq2yoZZa9">25,000</span> Vested Shares and <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241220_zlJ2nyXACeeh">323,085</span> Vested Shares, respectively, were exchanged for an
equivalent number of Common Shares. This exchange resulted in a change in the Company&#8217;s ownership interest in ECRC and was
accounted for as an equity transaction in accordance with Accounting Standards Codification (&#8220;ASC&#8221;) 810-10-45-23,
with no gain or loss recognized. Accordingly, the carrying amount of the noncontrolling interest was adjusted to reflect the change
in the Company&#8217;s ownership interest with a corresponding offset booked to equity. As of March 31, 2025, <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_pid_dxL_uShares_c20250331_zd0WBXzaDsFd" title="::XDX::3073000"><span style="-sec-ix-hidden: xdx2ixbrl0910">3,934,031</span></span> Vested
Shares remained outstanding.</span></p>

<span></span>
</td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents schedule of class B common stock of ECRC text block.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>COMMON SHARES<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EquityAbstract', window );"><strong>Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock', window );">COMMON SHARES</a></td>
<td class="text"><p id="xdx_808_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zyuKQJalIpb2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_826_zsAgfYTYq5Z7">COMMON
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Issuance</span></td></tr>
</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241105_gIFCOWORRFITN-VYYGH_zdLXqooIcu0l">On
November 5, 2024, the Company closed an underwritten public offering (the &#8220;November 2024 Registered Offering&#8221;), pursuant
to the underwriting agreement, dated November 3, 2024 (the &#8220;Underwriting Agreement&#8221;), with Maxim Group LLC, as underwriter
(&#8220;Maxim&#8221;), which consisted of 1,592,356 Common Shares, 1,672,090 Warrants (the &#8220;Series A Public Warrants&#8221;)
to purchase up to an additional 1,672,090 Common Shares and 836,045 Warrants (the &#8220;Series B Public Warrants&#8221; and,
together with the Series A Public Warrants, the &#8220;November Public Warrants&#8221;) to purchase up to an additional 836,045
Common Shares. Each Common Share was sold together with one Series A Public Warrant and one-half of one Series B Public Warrant
at a combined public offering price of $1.57. The gross proceeds from the November 2024 Registered Offering were $2,501</span> </span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>











<div id="xdx_C05_gIFCOWORRFITN-VYYGH_z1ZLivWGmGJh"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">before
deducting underwriting discounts and offering expenses. The November Public Warrants were classified as equity instruments and
accordingly, the net proceeds were allocated based on the relative fair values of the Common Shares and the November Public Warrants
on the date of issuance, with $943 allocated to the fair value of the November Public Warrants and the balance of the proceeds
of $1,558 allocated to Common Shares. The Company incurred total transaction costs related to the November 2024 Registered Offering
$1,226, which were treated as share issuance costs at closing. The Series A Public Warrants have an exercise price of $1.75 per
underlying Common Share, are exercisable immediately, and will expire on November 5, 2026. The Series B Public Warrants have an
exercise price of $2.07 per underlying Common Share, are exercisable beginning six months and one day from the date of issuance
and will expire on November 5, 2029. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day over-allotment
option to purchase (i) 238,853 additional Common Shares and (ii) 358,280 Option Warrants (as defined below) to purchase up to
an aggregate of 358,280 Common Shares. &#8220;Option Warrant&#8221; means one Series A Public Warrant combined with one-half of
one Series B Public Warrant. On November 4, 2024, Maxim partially exercised its over-allotment option to purchase <span id="xdx_906_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesAMember_zDH8iJERs2s7">79,734</span> additional
Series A Public Warrants and <span id="xdx_908_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesBMember_zync8a8qmZx5">39,867</span> additional Series B Public Warrants, which amounts are included in the amounts discussed above
and were issued at closing of the November 2024 Registered Offering.</span></p></div>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_909_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241113_zfxNEMy8TMDa">On
November 13, 2024, the Company closed a non-brokered private placement (the &#8220;November 2024 Private Offering&#8221;), pursuant
to binding subscription agreements with certain accredited investors as part of a non-brokered private placement of <span id="xdx_90B_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pid_uShares_c20241101__20241113__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember_zJ2BkoLQdARb" title="Shares issue">2,199,602</span>
units of the Company (the &#8220;November 2024 Units&#8221;). Each November 2024 Unit consisted of one Common Share, one Warrant
(a &#8220;Series A Private Warrant&#8221;) to purchase one Common Share, and one-half of one Warrant (each whole such Warrant,
a &#8220;Series B Private Warrant&#8221; and, together with the Series A Private Warrants, the &#8220;November Private Warrants&#8221;),
with each Series B Private Warrant entitling the holder thereof to purchase one additional Common Share. Each November 2024 Unit
was issued and sold at a price of $1.57. The gross proceeds of the November 2024 Private Offering were approximately $3,500 before
deducting offering expenses. Certain directors and officers of the Company (the &#8220;Insider Investors&#8221;) purchased November
2024 Units at a price of $1.7675 per November 2024 Unit, which price includes $0.1975 per November 2024 Private Warrant and allowed
such directors and officers to participate in the November 2024 Private Offering in accordance with the rules of the Nasdaq Stock
Market LLC (the &#8220;Nasdaq&#8221;). The Series A Private Warrants have an exercise price of $1.75 per underlying Common Share,
are exercisable immediately, and will expire on November 13, 2026. The Series B Private Warrants have an exercise price of $2.07
per underlying Common Share, are exercisable beginning six months and one day from the date of issuance and will expire on November
13, 2029. The Company recorded a non-cash expense of $34 and $110 to other operating expenses and employee related costs, respectively,
representing the excess of fair value of the November 2024 Units over the purchase price paid by Insider Investors.</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
upon the Company&#8217;s analysis of the criteria contained in ASC 815, the Company determined that the November Private Warrants
met the definition of a derivative liability, as any warrant exercise that could cause the holder to exceed 19.9% ownership of
NioCorp Common Shares would require shareholder approval. As such, the November Private Warrants were recognized as warrant liabilities
on the consolidated balance sheet and were measured at their issuance date fair value of $<span id="xdx_907_eus-gaap--FairValueOptionChangesInFairValueGainLoss1_pn3n3_c20240701__20250331_z6ysFpM9ikX8" title="Fair value of non operating gain/loss">1,928</span> and subsequently remeasured at
each reporting period with changes being recorded as a non-operating gain or loss in the consolidated statement of operations
and comprehensive loss. The remaining proceeds of the November 2024 Private Offering of $<span id="xdx_904_eus-gaap--StockIssuedDuringPeriodValueOther_pn3n3_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zwDmXcBo8Dsj" title="Remaining proceeds from private warrants">1,573</span> were allocated to Common Shares.
The Company incurred total transaction costs related to the November 2024 Private Offering of $<span id="xdx_909_ecustom--RegisteredOffering_iI_pn3n3_c20241130_znsjwmQOpDc6" title="Registered Offering">161</span>, of which $<span id="xdx_90E_ecustom--PrivateOffering_iI_pn3n3_c20241130_zYadWwAZKCqa" title="Private Offering">60</span> was allocated
to the November Private Warrants and was expensed at closing.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
following tables disclose the primary inputs for the Black-Scholes model used in valuing the November Public Warrants and November
Private Warrants, respectively.</span></p>










<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<p id="xdx_890_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_zGtP4U5B8ha6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B1_zBWKQ5BXEkZ9" style="display: none; visibility: hidden">Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1pt solid; text-align: center">November 5, 2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">November Public Warrants:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series A Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series B Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 34%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zQGqmf6iL6Hc" style="width: 10%; text-align: right" title="Closing common share price">1.455</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
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</table>

<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: center; padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt; text-align: center">&#160;</td>
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<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">November Private Warrants:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></td><td style="padding-bottom: 1pt; text-align: right">&#160;</td><td style="padding-bottom: 1pt; text-align: right">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 26%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left"></td><td style="width: 1%; text-align: right"></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left"></td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left"></td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left"></td><td>&#160;</td>
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</table>

<p id="xdx_8A0_zg9ag51nXsfb" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p id="xdx_895_ecustom--ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_z4uzzhxwxmb1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B6_zpz79LdOELRc">The
following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">November Private Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 42%; text-align: justify">Fair value at issuance (November 13, 2024)</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_z7Uww5h43M27" style="width: 15%; text-align: right" title="Beginning balance">1,929</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zLVJ4FdTSkyh" style="border-bottom: Black 1pt solid; text-align: right" title="Beginning balance">1,258</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify; padding-bottom: 1pt">Fair value as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zr8K1NdvbYAe" style="border-bottom: Black 2pt solid; text-align: right" title="Beginning balance">3,187</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<p id="xdx_8AB_zRP2ru6sYucc" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_906_ecustom--CommonShareDescription_c20250101__20250131_zKFKE2kNFtz9" title="Subsequent event, description">On
January 31, 2025, the Company closed an underwritten registered direct offering (the &#8220;January 2025 Offering&#8221;), pursuant
to an underwriting agreement, dated January 29, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold
2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to 2,577,320 Common Shares (the &#8220;January 2025 Series
A Warrants&#8221;) and 1,288,660 Series B warrants to purchase up to an additional 1,288,660 Common Shares (the &#8220;January
2025 Series B Warrants&#8221; and, together with the January 2025 Series A Warrants, the &#8220;January 2025 Warrants&#8221;).
Each Common Share was sold together with one January 2025 Series A Warrant and one-half of one January 2025 Series B Warrant at
a combined public offering price of $1.94. The gross proceeds from the January 2025 Offering were approximately $5,000 before
deducting underwriting discounts and offering expenses. The January 2025 Warrants were classified as equity instruments and accordingly,
the net proceeds were allocated based on the relative fair values of the Common Shares and the January 2025 Warrants on the date
of issuance, with $2,200 allocated to the fair value of the January 2025 Warrants and the balance of the proceeds of $2,800 allocated
to Common Shares. The Company incurred total transaction costs related to the January 2025 Offering of $799, which were treated
as share issuance costs at closing. The January 2025 Series A Warrants have an exercise price of $1.98 per underlying Common Share,
are exercisable immediately, and will expire on August 2, 2027. The January 2025 Series B Warrants have an exercise price of $2.05
per underlying Common Share, are exercisable immediately, and will expire on January 31, 2029</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p id="xdx_897_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_zOPFjWNTFfx5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8BC_zEpnDNRlsPo5">The
following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series B Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 34%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUK7ziTDjjDh" style="width: 10%; text-align: right" title="Closing common share price">2.25</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUb1QydvvX2d" title="Term (years)::XDX::P4Y6M0D"><span style="-sec-ix-hidden: xdx2ixbrl0989">2.5</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
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</table>
<p id="xdx_8A0_z3qtLlHDdbdg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"></div>








<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of March 31, 2025, the Company has access to up to $56,157 in net proceeds from the Standby Equity Purchase Agreement, dated January
26, 2023 (the &#8220;Yorkville Equity Facility Financing Agreement&#8221;), between the Company and YA II PN, Ltd., an investment
fund managed by Yorkville Advisors Global, LP (&#8220;Yorkville&#8221;), through April 1, 2026. <span id="xdx_8BA_z6hPXRJJPN99">The Company issued the following
Common Shares under the Yorkville Equity Facility Financing Agreement during the three and nine month periods presented below</span>:</span></p>

<p id="xdx_894_ecustom--ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_zvI9NWNFkM5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B3_zSklU7RVUor9" style="display: none; visibility: hidden">The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Three Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Nine Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 44%; text-align: justify">Common Shares issued</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_982_ecustom--CommonStockSharesIssued1_pid_uShares_c20250101__20250331_zrOD8Dq57C8l" style="width: 10%; text-align: right" title="Common shares issued">709,000</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Gross funds received</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20250101__20250331_z0D0vkRXvHcc" style="text-align: right" title="Gross funds received">1,286</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Market value of Common Shares Issued <br/></td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_988_eus-gaap--StockIssued1_c20250101__20250331_zQmRtplEnIn7" style="text-align: right" title="Market Value of Shares Issued">1,328</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Loss on issuance</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20250101__20250331_zR5OagxFirVk" style="text-align: right" title="(Gain)/Loss on Issuance">42</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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</table>

<p id="xdx_8A5_zvV3k0lN4yL2" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loss
on issuance represents a non-cash amount equal to the difference between the proceeds received and the fair value of the Common
Shares issued based on the Nasdaq closing price per Common Share on the issuance date and is recorded in other operating expenses
in the condensed consolidated statement of operations and comprehensive loss.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stock
    Options</span></td></tr>
</table>

<p id="xdx_89F_ecustom--ScheduleOfStockOptionRollForwardTableTextBlock_zErRuunJX81b" style="margin-top: 0; margin-bottom: 0"><span id="xdx_8BF_zjCXsQ7AAX0h" style="display: none; visibility: hidden">Schedule Of Stock Option</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
    <td style="text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Number of Options</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Granted</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercised</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 1pt; text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cancelled/expired</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">&#160;</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">&#160;</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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</table>

<p id="xdx_8A2_zxyE3d258on9" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
February 24, 2025, the Company granted 10,000 Options with a fair value price of $1.13 per Option, based on a Black-Scholes model
with a risk-free rate of 4.28%, average share price volatility of 73.3%, and a three-year expected option life. These Options
were 50% vested on the issuance date with the remaining portion vesting over one year. The Company expensed $6 in the condensed
consolidated statement of operations associated with the grant and the remaining balance will be amortized over the vesting period.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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</table>
<p id="xdx_892_eus-gaap--ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_z3V9Yudh1Fk3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif; display: none; visibility: hidden"><span id="xdx_8B5_z9tGUNRTnXs7">Schedule of warrant transactions</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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</table>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%">$</td><td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iE_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeU0ShjNHoua" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance">7.12</td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td></tr>
</table>
<p id="xdx_8AA_znMANA49xPC1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>



<p style="margin-top: 0; margin-bottom: 0"></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"></div>






<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p id="xdx_89B_ecustom--ScheduleOfOutstandingExercisableWarrantsTableTextBlock_zEslwoVmmbKl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8B1_zwgc0kxq5yOf">As
of March 31, 2025, the Company had outstanding exercisable Warrants, as follows</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 52%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: center">Number</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right; padding-bottom: 1pt">Exercise Price</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">Expiry Date</td>
    <td style="border-bottom: Black 1pt solid">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="width: 1%">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_989_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_z1PAG4RB6qP9" style="text-align: right" title="Number of share outstanding">413,432</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_901_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zccv4H5D2tga" title="Exercise price">3.54</span></td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zFPH8hXSimn6" style="text-align: right" title="Expiry date">December 22, 2025</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_982_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zOD2Vwt5jvYd" style="text-align: right" title="Number of share outstanding">315,000</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zml2rz96qtza" title="Exercise price">2.20</span></td><td>&#160;</td>
    <td id="xdx_984_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zxGrrr2DcCMc" style="text-align: right" title="Expiry date">June 24, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98F_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zgtcKLAPfXz4" style="text-align: right" title="Number of share outstanding">1,442,090</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_z5NsXueGgbsh" title="Exercise price">1.75</span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zV2rhTaM7n9h" style="text-align: right" title="Expiry date">November 5, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_98B_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_zudt0nodwGB3" style="text-align: right" title="Number of share outstanding">2,199,602</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z6l8uGOopFq6" title="Exercise price">1.75</span></td><td>&#160;</td>
    <td id="xdx_983_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z4PusRkWWnN6" style="text-align: right" title="Expiry date">November 13, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zusDyUTV8uU7" style="text-align: right" title="Number of share outstanding">615,385</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zzl0d8tJOMF8" title="Exercise price">3.25</span></td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zOx5ZJgy35Wi" style="text-align: right" title="Expiry date">April 12, 2027</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_987_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zDWGjR8gfwS2" style="text-align: right" title="Number of share outstanding">2,577,320</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zBmEU13FwUD6" title="Exercise price">1.98</span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zKOX4YEAXvyj" style="text-align: right" title="Expiry date">August 2, 2027</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98D_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zNEWLgqbaKck" style="text-align: right" title="Number of share outstanding">15,666,626</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_ztgMmbLE4Eia" title="Exercise price">11.50</span></td><td>&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zTN5WawxZ2s9" style="text-align: right" title="Expiry date">March 17, 2028</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_980_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zO2kvjZ4nmri" style="text-align: right" title="Number of share outstanding">2,816,742</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_900_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zXNZl1yaYAGj" title="Exercise price">2.31</span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zm2RrfF7bSDb" style="text-align: right" title="Expiry date">September 17, 2028</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z82PxVQds6N" style="text-align: right" title="Number of share outstanding">1,288,660</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_zZch4Rvarty8" title="Exercise price">2.05</span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z7Lu80CtrLGb" style="text-align: right" title="Expiry date">January 31, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zqMh37e14hm4" style="text-align: right" title="Number of share outstanding">836,045</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_z2wbhm6eoYe3" title="Exercise price">2.07</span></td><td>&#160;</td>
    <td id="xdx_987_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zPcqYZ8eKPg6" style="text-align: right" title="Expiry date">November 5, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zuEQJ8HWYusk" style="border-bottom: Black 1pt solid; padding-bottom: 1pt; text-align: right" title="Number of share outstanding">1,099,793</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: right"><span id="xdx_906_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zMAcShPqlFr1" title="Exercise price">2.07</span></td><td style="padding-bottom: 1pt">&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zykADMu1lymb" style="text-align: right; padding-bottom: 1pt" title="Expiry date">November 13, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331_znkjsnzPdgT9" style="border-bottom: Black 2pt solid; text-align: right" title="Number of share outstanding">29,520,695</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="text-align: right; padding-bottom: 1pt">&#160;</td>
    <td>&#160;</td></tr>
</table>

<p id="xdx_8A9_zxAGv8sXdYi9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><i>Private
Warrants</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 17, 2023 (the &#8220;Closing Date&#8221;), the Company closed a series of transactions (the &#8220;GXII Transaction&#8221;)
pursuant to the Business Combination Agreement, dated as of September 25, 2022, by and among the Company, GXII, and Big Red Merger
Sub Ltd. In connection with the closing of the GXII Transaction (the &#8220;Closing&#8221;), the Company assumed GXII&#8217;s
obligations under the agreement governing the GXII share purchase warrants (the &#8220;GXII Warrants&#8221;), as amended by an
assignment, assumption and amendment agreement (the &#8220;NioCorp Assumed Warrant Agreement&#8221;), and issued an aggregate
of <span id="xdx_903_ecustom--WarrantsTradedPriorToClosing_iI_pid_uShares_c20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zXL8pyAsWmt5" title="Warrants traded prior to the closing">15,666,626</span> Warrants (the &#8220;NioCorp Assumed Warrants&#8221;). The Company issued (a) <span id="xdx_909_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeZTzsIIGWpg" title="Warrants traded prior to the closing">9,999,959</span> public NioCorp Assumed Warrants
(the &#8220;Public Warrants&#8221;) in respect of the GXII Warrants that were publicly traded prior to the Closing and (b) <span id="xdx_902_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--TransactionTypeAxis__custom--GXIIPrivateWarrantsMember_z5ekLfVLSG82" title="Warrants traded prior to the closing">5,666,667</span>
NioCorp Assumed Warrants (the &#8220;Private Warrants&#8221;) to GX Sponsor II LLC (the &#8220;Sponsor&#8221;).</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_906_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zDdiLJwUCQJ9" title="Description of warrants">Each
Private Warrant entitles the holder to the right to purchase 1.11829212 Common Shares at an exercise price of $11.50 per 1.11829212
Common Shares (subject to adjustments for stock splits, stock dividends, reorganizations, recapitalizations and the like).</span> No
fractional shares will be issued upon exercise of any Private Warrants, and fractional shares that would otherwise be due to the
exercising holder will be rounded down to the nearest whole Common Share. In no event will the Company be required to net cash
settle any Private Warrant.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Private Warrants: (i) will be exercisable either for cash or on a cashless basis at the holder&#8217;s option and (ii) will not
be redeemable by the Company, in either case as long as the Private Warrants are held by the Sponsor, its members or any of their
permitted transferees (as prescribed in the NioCorp Assumed Warrant Agreement). In accordance with the NioCorp Assumed Warrant
Agreement, any Private Warrants that are held by someone other than the Sponsor, its members or any of their permitted transferees
are treated as Public Warrants.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_zO5nlUfr32E6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
Company classifies the Private Warrants as Level 2 instruments under the fair value hierarchy as inputs into our pricing model
are based on observable data points. <span id="xdx_8B7_z5BRPxiunwme">The following observable data points were used in calculating the fair value of the Private
Warrants using a Black-Scholes pricing model</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: justify">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">March 31,&#160; <br/>2025</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">June 30,&#160; <br/>2024</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 56%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zmmzHg7eLnha" style="width: 10%; text-align: right" title="Stock price on valuation date">$1.97</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zfQSHvU6uVja" style="width: 10%; text-align: right" title="Stock price on valuation date">$1.73</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zRaF7BcL41Q6" title="Implied volatility of public warrants">64.3</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zv8iE6GEy7Uh" title="Implied volatility of public warrants">69.0</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Risk free rate</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z4BjPftoE7ld" title="Risk free rate">3.88</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zMUi0rOLnKcb" title="Risk free rate">4.45</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Dividend yield</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zkGZRysuk95g" title="Dividend yield">0</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zWwVcgrZs0uj" title="Dividend yield">0</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Expected warrant life in years</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zon97XCmEO91" title="Expected warrant life in years">3.0</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zKgRfAqfX6w" title="Expected warrant life in years">3.7</span></td><td style="text-align: left">&#160;</td></tr>
</table>
<p id="xdx_8A6_zo1qVvX9mHj5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"></div>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>


<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p id="xdx_894_ecustom--ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_zKZgpL8S3EN1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B1_zuV5sCPTXEzk">The
change in the Private Warrants liability is presented below</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_985_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zpdG3eXCbQJ6" style="width: 15%; text-align: right" title="Beginning balance">1,353</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zycPTplq6B2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">(680</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt">Fair value as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98E_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zQTpM9YuPcB9" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance">673</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<p id="xdx_8A6_zY1r2Kmj1x1c" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Contingent
Consent Warrants</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90C_eus-gaap--BusinessCombinationContingentConsiderationArrangementsDescription_c20240701__20250331__us-gaap--BusinessAcquisitionAxis__custom--LindGlobalAssetManagementThreeLLCMember_zcipujrvKkUi" title="Contingent consideration description">As
consideration for entering into the previously publicly disclosed Waiver and Consent Agreement, dated September 25, 2022 (the
&#8220;Lind Consent&#8221;), between the Company and Lind Global Asset Management III, LLC (&#8220;Lind III&#8221;), Lind III
received, amongst other things, the right to receive additional Warrants (the &#8220;Contingent Consent Warrants&#8221;) if on
September 17, 2024, the closing trading price of the Common Shares on the Toronto Stock Exchange or such other stock exchange
on which such shares may then be listed, is less than C$10.00, subject to adjustments. The number of Contingent Consent Warrants
to be issued, if any, is based on the Canadian dollar equivalent (based on the then current Canadian to U.S. dollar exchange rate
as reported by Bloomberg, L.P.) of $5,000 divided by the five-day volume weighted average price of the Common Shares on the date
of issuance</span>. Further, the number of Contingent Consent Warrants issued will be proportionately adjusted based on the percentage
of Warrants currently held by Lind III that are exercised, if any, prior to the issuance of any Contingent Consent Warrants.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
September 17, 2024, the Company&#8217;s Common Share price was below the threshold price set forth in the Lind Consent, and accordingly,
the Company issued <span id="xdx_90D_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240915__20240917_zIESjBFGGSGa" title="Stock issued, shares">2,816,742</span> Contingent Consent Warrants to Lind III. Each Contingent Consent Warrant is exercisable for one Common
Share at an exercise price of $<span id="xdx_90F_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20240917__us-gaap--TransactionTypeAxis__custom--LindConsentWarrantIssuanceMember_zQXRsdoznIri" title="Common share exercise price, per share">2.308</span> and may be exercised at any time prior to their expiration on September 17, 2028. The number
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Shares on September 16, 2024. The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation
with the following inputs:</span></p>

<p id="xdx_89A_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_ztLRO3RxnkG9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BA_zvsP6orW6hW8" style="display: none; visibility: hidden">The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:</span></span></p>


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    <td style="border-bottom: Black 1pt solid">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">September 17, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 39%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zlRpCuqjYDbe" title="Term (years)">4.0</span></td></tr>
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    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_z0fMlrvCt2J7" title="Historic equity volatility">67.14</span>%</td></tr>
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    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zbxhLeGHZyGf" title="Risk-free rate">3.44</span>%</td></tr>
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<p id="xdx_8A3_zwhhEZ7n5uQj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company recognized a gain of $103 on the issuance of the Contingent Consent Warrants. This gain was recorded as a part of other
gains in the condensed consolidated statements of operations and comprehensive loss.</span></p>

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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for shareholders' equity and share-based payment arrangement. Includes, but is not limited to, disclosure of policy and terms of share-based payment arrangement, deferred compensation arrangement, and employee stock purchase plan (ESPP).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 505<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/505/tableOfContent<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 718<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/718/tableOfContent<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>RELATED PARTY TRANSACTIONS<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsAbstract', window );"><strong>Related Party Transactions [Abstract]</strong></a></td>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsDisclosureTextBlock', window );">RELATED PARTY TRANSACTIONS</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">9.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_821_zXRqhK4Hlt71">RELATED
    PARTY TRANSACTIONS</span></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">On
September 11, 2024, the Company and Mark Smith, Chief Executive Officer, President and Executive Chairman of NioCorp, entered
into a loan agreement (the &#8220;Smith Loan Agreement&#8221;), which provides for a $<span id="xdx_90F_eus-gaap--LongTermLineOfCredit_iI_pn3n3_c20240911__us-gaap--TypeOfArrangementAxis__custom--NonRevolvingCreditFacilityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_z7DP7FbKXlLi">2,000</span> non-revolving, multi-draw credit facility
(the &#8220;Smith Loan&#8221;). The Smith Loan has an interest rate of <span id="xdx_90F_eus-gaap--RelatedPartyTransactionRate_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_zCTV9c4FdCZc">10</span>% per annum, calculated monthly in arrears, through the
date of repayment of the Smith Loan. The Company can pre-pay the Smith Loan at any time without notice and without penalty, but
any amount of principal or interest repaid by the Company prior to the earlier of the date of expiration of the Smith Loan Agreement
on June 30, 2025 and the occurrence of an event of default under the Smith Loan Agreement will be subject to an early payment
fee of <span id="xdx_906_ecustom--LineOfCreditFacilityEstablishmentFee_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_ziSmpq6SjsDb">2.5</span>% of the value of any such payment. The Smith Loan is secured by all of the Company&#8217;s assets pursuant to a general
security agreement between the Company and Mr. Smith dated September 11, 2024.</p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>










<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Through
October 30, 2024, the Company borrowed a total of $<span id="xdx_905_eus-gaap--OtherBorrowings_iI_pn3n3_c20241030_zELugWvHe6xg">504</span> under the Smith Loan and subsequently the Company repaid $508, representing
the balance of the interest and principal outstanding under the Smith Loan, along with $<span id="xdx_908_eus-gaap--LoanProcessingFee_pn3n3_c20241101__20250331__us-gaap--FairValueByLiabilityClassAxis__us-gaap--BorrowingsMember_z2bnQAQnJjqc" title="Loan Origination fees">41</span> related to loan origination fees payable.
As of March 31, 2025, the principal amount outstanding under the Smith Loan was $<span id="xdx_906_eus-gaap--AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_iI_pn3n3_c20250331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_z2iSOvYgYMnl" title="Accounts payable and accrued liabilities">0</span> and accounts payable and accrued liabilities
as of March 31, 2025, included $<span id="xdx_905_eus-gaap--LoanProcessingFee_pn3n3_c20240701__20250331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_zNbGi8CEBUW6" title="Loan Origination fees">0</span> dollars of loan origination fees payable to Mr. Smith.</span></p>

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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480990/946-20-50-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480990/946-20-50-5<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480990/946-20-50-6<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477968/946-235-50-2<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477968/946-235-50-2<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 850<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(g)(3))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(c))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(e))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 850<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/850/tableOfContent<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 850<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483326/850-10-50-6<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 850<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 850<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Exploration Expenditures<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureExplorationExpendituresAbstract', window );"><strong>Exploration Expenditures</strong></a></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">21</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">56</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">62</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<p id="xdx_8A8_zVYbeXF5goF6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_zqf5LnvEflhi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span><span id="xdx_8BD_zfr6vCfndjvc">The
maturities of lease liabilities are as follows as of March 31, 2025</span>:</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: center; padding-bottom: 1pt; padding-left: 10pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" id="xdx_49A_20250331_zX2K6skfOOgg" style="border-bottom: Black 1pt solid; text-align: center">Future Lease Maturities</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_zFg1OALyJnBi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 77%; text-align: left">Total remaining lease payments</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">172</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr id="xdx_40C_ecustom--LessAmountOfPaymentsRepresentingInterest_iI_pn3n3_zGdBlgJOSELl" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: 4.5pt">Less portion of payments representing interest</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right">(22</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr id="xdx_40D_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zhciloIvRqld" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Present value of lease payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">150</td><td style="text-align: left">&#160;</td></tr>

<tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityCurrent_iNI_pn3n3_di_zsUtLmxkyhN" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; width: 77%">&#160; Less current portion of lease payments</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left; width: 1%">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right; width: 10%">(98</td><td style="padding-bottom: 1pt; text-align: left; width: 1%">)</td></tr>
<tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zV2dldReGd5d" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt">Non-current lease liability</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">$</td><td style="border-bottom: Black 1pt solid; text-align: right">52</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
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<p id="xdx_8A3_zUlnHnzOkMNf" style="margin-top: 0; margin-bottom: 0"></p>

<span></span>
</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/842-20/tableOfContent<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurements<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresAbstract', window );"><strong>Fair Value Disclosures [Abstract]</strong></a></td>
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<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">12.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_822_zeigfwW1Czob">Fair
Value Measurements</span></span></td>
</tr></table>
<p style="margin: 0">&#160;</p>

<p style="margin: 0; text-align: justify">The
following tables present information about the assets and liabilities that are measured at fair value on a recurring basis as
of March 31, 2025, and June 30, 2024, respectively, and indicate the fair value hierarchy of the valuation techniques the Company
utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted)
in active markets for identical instruments. Fair values determined by Level 2 inputs utilize data points that are observable,
such as quoted prices, interest rates, and yield curves. Fair values determined by Level 3 inputs are unobservable data points
for the financial instrument and include situations where there is little, if any, market activity for the instrument.</p>





<p style="margin-top: 0; margin-bottom: 0"></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"></div>



<p id="xdx_89C_eus-gaap--FairValueByBalanceSheetGroupingTextBlock_z2pEMELI8Mvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span id="xdx_8B7_zDTl2bcgO51c" style="display: none; visibility: hidden">Schedule
of fair values determined by level 3 inputs are unobservable data</span>&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="14" style="border-bottom: Black 1pt solid; text-align: center">As of March 31, 2025</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Total</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Level 1</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Level 2</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Level 3</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Assets:</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 48%; text-align: left; padding-left: 0.125in">Cash and cash equivalents</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331_zdiyKXjLtkdi" style="width: 10%; text-align: right" title="Cash and cash equivalents">1,294</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHeIVvJiHWJ9" style="width: 10%; text-align: right">1,294</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zcyVGwhAZjT5" style="width: 10%; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1339">-</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zvekItnkrNh7" style="width: 10%; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1340">-</span></td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Investment in equity securities</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98A_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331_zdBKWq5xFIwi" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities">3</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98D_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zGvCgxhqxNa" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities">3</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98E_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zsBIrPsQqNaf" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"><span style="-sec-ix-hidden: xdx2ixbrl1346">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_983_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zpstRb9AXiM" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1347">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
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    <td style="padding-bottom: 1pt">Total</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_985_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331_zistUkSGf8Z8" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets">1,297</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zH53tZ0NVQh7" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets">1,297</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zO0HzQ2eGFRl" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"><span style="-sec-ix-hidden: xdx2ixbrl1353">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zZivaiFlNyWh" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"><span style="-sec-ix-hidden: xdx2ixbrl1355">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Liabilities:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0.125in">Earnout Shares liability</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331_zLd7gyui2eR7" style="text-align: right" title="Earnout Shares liability">4,327</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zbPHfnaPk951" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1358">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVN3olU6wsZ6" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1359">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_z38f964ctqM9" style="text-align: right" title="Earnout Shares liability">4,327</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Warrant liabilities</td><td style="padding-bottom: 1pt">&#160;</td>
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98D_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zt5i8EuvaITk" style="border-bottom: Black 2pt solid; text-align: right">2,016</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zCFLM8bV6FC3" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1389">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_ziKDz0seaLZk" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"><span style="-sec-ix-hidden: xdx2ixbrl1391">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Liabilities:</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630_z6EjW5iyUJw5" style="text-align: right" title="April 2024 notes">7,089</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zvLr0XSdwti2" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1394">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVXL5alYCXF7" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1395">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0.125in">Earnout Shares liability</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zz0jFDI9pVfj" style="text-align: right" title="Earnout Shares liability">3,817</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zijbJuXYgtS8" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1400">-</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zgutku2SAYwh" style="border-bottom: Black 1pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1406">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zzmkwRINzu12" style="border-bottom: Black 1pt solid; text-align: right">1,651</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_982_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zQB0E68DM9n9" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities">2,365</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_989_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zG24VUjh7hve" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1412">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z8hBjP8AiL5f" style="border-bottom: Black 2pt solid; text-align: right">1,651</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCmfEagoAwTf" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities">13,271</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
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<p id="xdx_8AA_zyfD63a2iZEc" style="margin-top: 0; margin-bottom: 0"></p>

<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 820<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/820/tableOfContent<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CYBERSECURITY INCIDENT<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureCybersecurityIncidentAbstract', window );"><strong>Cybersecurity Incident</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_MaterialCybersecurityIncidentNatureTextBlock', window );">CYBERSECURITY INCIDENT</a></td>
<td class="text"><p id="xdx_80F_ecustom--MaterialCybersecurityIncidentNatureTextBlock_zzOU8kSxUlX5" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">13.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_824_zw36maH7zOd5">CYBERSECURITY
INCIDENT</span></span></td>
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
February 14, 2025, the Company became aware of unauthorized third-party access to its information systems, including portions
of its email systems, that resulted in misdirected vendor payments totaling approximately $506 (the &#8220;cybersecurity incident&#8221;).
The Company self-discovered the cybersecurity incident and promptly notified certain financial institutions and federal law enforcement
in an effort to, among other matters, recover the misdirected vendor payments. In addition, upon discovery of the cybersecurity
incident, the Company took steps to investigate, contain, assess, and remediate the cybersecurity incident. As a result of the
investigation, the Company determined that the cybersecurity incident was limited to the misdirected vendor payments noted above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
date, the Company has not recovered any funds, and as a result, the Company recorded a one-time charge of $<span id="xdx_90E_eus-gaap--OtherCostAndExpenseOperating_pn3n3_uUSD_c20250215__20250331_zxGRf8AOoVfa" title="Charge on operating expenses">506</span> to other operating
expenses in the condensed consolidated statements of operations. Recoveries, if any, will be recognized as a gain in the period
that the funds are received. The Company incurred approximately $<span id="xdx_90C_eus-gaap--ProfessionalFees_pn3n3_c20250215__20250331_zER3fFdDfgij">10</span> in professional service fees in connection with the investigation
and initial remediation related to this incident.</span></p>

<span></span>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>SUBSEQUENT EVENTS<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventsAbstract', window );"><strong>Subsequent Events [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventsTextBlock', window );">SUBSEQUENT EVENTS</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase">14.</span></td><td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"><span id="xdx_82B_z6PLpEbMQnLh">SUBSEQUENT
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="margin-top: 0; margin-bottom: 0"></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font: 10pt Times New Roman, Times, Serif"><i>The
April 2025 Offering</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_902_eus-gaap--SubsequentEventDescription_dxL_c20250421__20250422__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zAyLLicTNP1f" title="Subsequent event, description::XDX::On%20April%2017%2C%202025%2C%20Maxim%20partially%20exercised%20its%20over-allotment%20option%20to%20purchase%20323%2C504%20additional%20Common%20Shares%20at%20the%20closing.%20The%20gross%20proceeds%20from%20the%20April%202025%20Offering%20were%20approximately%20%2420%2C800%20before%20deducting%20underwriting%20discounts%20and%20offering%20expenses."><span style="-sec-ix-hidden: xdx2ixbrl1424">On
April 21, 2025, the Company closed an underwritten public offering (the &#8220;April 2025 Offering&#8221;), pursuant to the underwriting
agreement, dated April 17, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold (i) 6,628,846 Common
Shares at a public offering price of $2.60 per Common Share and (ii) 1,063,462 pre-funded Common Share Purchase Warrants (the
&#8220;April 2025 Pre-Funded Warrants&#8221;) to purchase up to an additional 1,063,462 Common Shares at a public offering price
of $2.5999. The April 2025 Pre-Funded Warrants have an exercise price of $0.0001 per underlying Common Share, are exercisable
immediately, and do not have an expiration date.</span></span> On April 17, 2025, Maxim partially exercised its over-allotment option to purchase
323,504 additional Common </span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>







<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></p>

<p style="margin-top: 0; margin-bottom: 0"></p>

<p style="margin-top: 0; margin-bottom: 0"></p>





<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shares at the closing. The gross proceeds from the April 2025 Offering were approximately $20,800 before
deducting underwriting discounts and offering expenses.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
Company intends to use the net proceeds from the April 2025 Offering for working capital and general corporate purposes, including
to advance its efforts to launch construction of the Elk Creek Project and move it to commercial production.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Other
Equity Issuances</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the period from April 1, 2025 through May 8, 2025, the Company issued Common Shares under the Yorkville Equity Facility Financing
Agreement and through the exercise of Warrants by their holders. As a result of these transactions, the Company received cash
totaling $<span id="xdx_901_eus-gaap--ProceedsFromStockPlans_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zmGGh7KWdeH1" title="Cash received">3,599</span> and issued <span id="xdx_90E_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zMlHsdiTQrPh" title="Issuance of common shares">1,568,694</span> Common Shares.</span></p>

<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 855<br> -Name Accounting Standards Codification<br> -Publisher FASB<br> -URI https://asc.fasb.org/855/tableOfContent<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 855<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>BASIS OF PRESENTATION (Policies)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</span></td>
    <td id="xdx_863_zCzZ4rG7QJQ9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basis
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting
principles of the United States of America (&#8220;U.S. GAAP&#8221;) and the rules and regulations of the Securities and Exchange
Commission (&#8220;SEC&#8221;). The interim condensed consolidated financial statements include the consolidated accounts of the
Company and its wholly owned subsidiaries with all significant intercompany transactions eliminated. The accounting policies followed
in preparing these interim condensed consolidated financial statements are those used by the Company as set out in the audited
consolidated financial statements for the year ended June 30, 2024. Certain transactions include reference to Canadian dollars
(&#8220;C$&#8221;) where applicable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the opinion of management, all adjustments considered necessary (including normal recurring adjustments) for a fair statement
of the financial position, results of operations, and cash flows as of March 31, 2025, and for all periods presented, have been
included in these interim condensed consolidated financial statements. Certain information and footnote disclosures normally included
in the consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to appropriate
SEC rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the audited
consolidated financial statements for the year ended June 30, 2024. The interim results are not necessarily indicative of results
for the full year ending June 30, 2025, or future operating periods.</span></p>

<span></span>
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    <td id="xdx_862_zRjSCAi4bsq9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Recent
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2023, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;)
2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU expand public
entities&#8217; segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the
Chief Operating Decision Maker and included within each reported measure of segment profit or loss, an amount and description
of its composition for other segment items, and interim disclosures of a reportable segment&#8217;s profit or loss and assets.
The ASU will be effective for our annual report for the period ending June 30, 2025, and for interim <span style="font: 10pt Times New Roman, Times, Serif">period reports beginning
thereafter. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">&#160;</span></p>



<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>







<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the
transparency and decision usefulness of income tax disclosures primarily through changes to the rate reconciliation and income
taxes paid information. ASU 2023-09&#160;is effective for our annual report for the period ending June 30, 2027, and for interim
period reports beginning thereafter. Early adoption is permitted and the amendments should be applied prospectively; however,
retrospective application is permitted. We are currently evaluating the impact of this ASU on our consolidated financial statements
and related disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures
(Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires the disclosure of additional information
related to certain costs and expenses, including amounts of inventory purchases, employee compensation, and depreciation and amortization
included in each income statement line item. This ASU also requires disclosure of the total amount of selling expenses and our
definition of selling expenses. This ASU is effective for our annual report for the period ending June 30, 2028, and for interim
period reports beginning thereafter on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating
the impact of adopting this ASU on our consolidated financial statements and disclosures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, new accounting pronouncements are issued by the FASB that are adopted by the Company as of the specified effective
date. Unless otherwise discussed, management believes that the impact of recently issued standards did not or will not have a
material impact on the Company&#8217;s consolidated financial statements upon adoption.</span></p>

<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_UseOfEstimates', window );">Use of Estimates</a></td>
<td class="text"><p id="xdx_842_eus-gaap--UseOfEstimates_z71Bubq5JSH4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</span></td>
    <td id="xdx_861_zdYf8kkPbvTi" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Use
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date
of the financial statements, and the reported amounts of expenses during the reporting period. The Company regularly evaluates
estimates and assumptions related to the carrying value of long-term assets, deferred income tax assets and related valuations,
liabilities related to the April 2024 Notes, Earnout Shares, Private Warrants, and November Private Warrants (each, as defined
below), and share-based compensation. The Company bases its estimates and assumptions on current facts, historical experience,
and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making
judgments about the other sources. The actual results experienced by the Company may differ materially and adversely from the
Company&#8217;s estimates. To the extent there are material differences between estimates and the actual results, future results
of operations will be affected.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company acquired a federal income tax payable of $<span id="xdx_90C_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_pn3n3_c20240701__20250331_zOoYBcaMwT4k" title="Federal income tax payable">443</span> in connection with the GXII Transaction (as defined below). As a result
of post-transaction losses at Elk Creek Resources Corp. (&#8220;ECRC&#8221;), a partial release of the valuation allowance attributed
to the reduction of the acquired federal income tax payable of $<span id="xdx_900_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3n3_di_c20230701__20240331_zb6y6xzWZZv8" title="Income tax payable">101</span> was recorded as an income tax benefit in the condensed consolidated
statement of operations and comprehensive loss for the nine months ended March 31, 2024. The Company maintains a full valuation
allowance against future income tax assets as it is more likely than not that all of the assets will not be realized.</span></p>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EarningsPerSharePolicyTextBlock', window );">Basic and Diluted Earnings per Share</a></td>
<td class="text"><p id="xdx_84C_eus-gaap--EarningsPerSharePolicyTextBlock_zQn1wmE6i4qh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</span></td>
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</table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. <span id="xdx_8B4_z3WPG2KSByGh">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share
attributable to common shareholders:</span></span></p>









<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Net loss attributable to vested shares of ECRC Class B common stock</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">Denominator:</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<p id="xdx_8AE_zWHHH8IQ5bTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following common shares, no par value, of the Company (&#8220;Common Shares&#8221;) underlying options to purchase Common Shares
(&#8220;Options&#8221;), Common Share purchase warrants (&#8220;Warrants&#8221;), and outstanding convertible debt were&#160;antidilutive&#160;due
to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the three-month
periods indicated below.</span></p>

<p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden">Schedule of excluded from the dilutive securities</span></span></p>

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<tr style="vertical-align: bottom">
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    <td colspan="6" style="text-align: center">For the Three and Nine Months <br/>Ended March 31,</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">Excluded potentially dilutive securities (1)(2):</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
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    calculations as required if the securities were dilutive.</span></td></tr>
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span id="xdx_F03_z05lwOc5tmkg" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</span></td>
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    Shares are excluded as the vesting terms were not met as of the end of the reporting period.</span></td></tr>
<tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
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    15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares. The remaining Warrants are each
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<p id="xdx_8A3_zE01D2VS8jrb" style="margin-top: 0; margin-bottom: 0"></p>

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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>BASIS OF PRESENTATION (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock', window );">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share attributable to common shareholders:</a></td>
<td class="text"><p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. <span id="xdx_8B4_z3WPG2KSByGh">The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share
attributable to common shareholders:</span></span></p>









<p style="font: 10pt Times New Roman,serif; margin: 0pt 0">&#160;</p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="display: none; vertical-align: bottom; visibility: hidden">
    <td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td colspan="2" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td colspan="2" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in">&#160;</td><td>&#160;</td>
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Ended March 31,</td><td>&#160;</td><td>&#160;</td>
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Ended March 31,</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20230701__20240331_z6ALTSvJPoua" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-439"><span style="-sec-ix-hidden: xdx2ixbrl0698">(520</span></td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in">Net loss available to participating securities</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20230701__20240331_zUYEWYCqnqK8" style="text-align: right" title="Net loss">(10,479</td><td style="text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Net loss attributable to vested shares of ECRC Class B common stock</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240101__20240331_zsd2vgu0d7U3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss">(184</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zsVBfensBPf3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss">(591</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20230701__20240331_z9R8I9QPPpNk" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss">(825</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Net loss attributed to common shareholders - basic and diluted</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20250101__20250331_zM5GGDGdjbV1" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(5,256</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98E_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240101__20240331_zvJprVxEUZW5" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(3,874</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240701__20250331_zmEYmW2DOQFb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(7,227</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_986_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20230701__20240331_zCpaaozX6VH9" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(9,654</td><td style="padding-bottom: 2pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">Denominator:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Weighted average shares outstanding &#8211; basic and diluted</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20250101__20250331_zoqnfLGexiYf" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss">45,893,738</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Loss per Common Share outstanding &#8211; basic and diluted</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_985_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20250101__20250331_z0cftbru2gql" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.11</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240101__20240331_z7XgFiuWkdy8" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.11</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240701__20250331_zXQyd8FW4PGb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss">(0.17</td><td style="padding-bottom: 2pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
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</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock', window );">Schedule of excluded from the dilutive securities</a></td>
<td class="text"><p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden">Schedule of excluded from the dilutive securities</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="6" style="text-align: center">For the Three and Nine Months <br/>Ended March 31,</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">Excluded potentially dilutive securities (1)(2):</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 69%">Options</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 10%; text-align: right"><span id="xdx_90A_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20250101__20250331_fKDEpKDIp_zTbZO9bf6sR8" title="Options"><span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240701__20250331_fKDEpKDIp_zSxsEeychVnl" title="Options">3,073,000</span></span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td>Warrants (3)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20250101__20250331_fKDEpKDIpKDMp_z22JdkKNzMk3" title="Warrants"><span id="xdx_905_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240701__20250331_fKDEpKDIpKDMp_zz9K0xenxltl" title="Warrants">29,520,695</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt">Convertible debt</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1pt solid; text-align: right"><span id="xdx_90B_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20250101__20250331_fKDEpKDIp_z2XTdRDcl3n7" title="Convertible debt"><span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20240701__20250331_fKDEpKDIp_zK2Gmh3MJOUk" title="Convertible debt">-</span></span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_PayablesAndAccrualsAbstract', window );"><strong>Payables and Accruals [Abstract]</strong></a></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DEBT (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.125in">Balance as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_981_eus-gaap--ConvertibleDebt_iE_pn3n3_c20240701__20250331_zHkFikotfIgd" style="border-bottom: Black 2pt solid; text-align: right" title="Balance, December 31, 2024"><span style="-sec-ix-hidden: xdx2ixbrl0827">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfOtherNonoperatingExpenseByComponentTextBlock', window );">The following table discloses the components of interest expense associated with the Convertible Debentures</a></td>
<td class="text"><p id="xdx_89F_eus-gaap--ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_ztsuvhjVtZmk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B0_zYt3EFE3oUue">The
following table discloses the components of interest expense associated with the Convertible Debentures</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; padding-left: 0.25in">&#160;</td><td>&#160;</td>
    <td colspan="6" style="text-align: center">For the Three Months Ended <br/>
March 31,</td><td>&#160;</td><td>&#160;</td>
    <td colspan="6" style="text-align: center">For the Nine Months Ended <br/>
March 31,</td><td>&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td style="text-align: justify; padding-left: 0.25in"></td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 48%; text-align: left; padding-left: 0.25in">Contractual interest</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_984_ecustom--ContractualInterest_pn3n3_uUSD_c20250101__20250331_zzgHHb234O1i" style="width: 10%; text-align: right" title="Contractual interest"><span style="-sec-ix-hidden: xdx2ixbrl0833">-</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_ecustom--ContractualInterest_pn3n3_uUSD_c20240101__20240331_zUVhBCf18Zal" style="width: 10%; text-align: right" title="Contractual interest">45</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_987_ecustom--ContractualInterest_pn3n3_uUSD_c20240701__20250331_z0uyt4JXVILi" style="width: 10%; text-align: right" title="Contractual interest">1</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_982_ecustom--ContractualInterest_pn3n3_uUSD_c20230701__20240331_zAOPW5Ek63v7" style="width: 10%; text-align: right" title="Contractual interest">266</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in">Amortization of discount and issuance costs</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20250101__20250331_zS18wAdgHx8g" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"><span style="-sec-ix-hidden: xdx2ixbrl0841">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240101__20240331_z6ViXviohUlb" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs">971</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240701__20250331_z4KJz1bq4Ka4" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs">42</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_988_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20230701__20240331_zDnGgXvTW9C5" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs">4,001</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; padding-left: 0.25in">Total</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_988_eus-gaap--AccretionExpense_pn3n3_uUSD_c20250101__20250331_zwVAKuZIas2i" style="border-bottom: Black 2pt solid; text-align: right" title="Total"><span style="-sec-ix-hidden: xdx2ixbrl0849">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98D_eus-gaap--AccretionExpense_pn3n3_uUSD_c20240101__20240331_zKhsHooK5k51" style="border-bottom: Black 2pt solid; text-align: right" title="Total">1,016</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_980_eus-gaap--AccretionExpense_pn3n3_dxL_uUSD_c20240701__20250331_zpeoJVFRV8G9" style="border-bottom: Black 2pt solid; text-align: right" title="Total::XDX::43"><span style="-sec-ix-hidden: xdx2ixbrl0853">43</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--AccretionExpense_pn3n3_uUSD_c20230701__20240331_zJh9qkOXWd1e" style="border-bottom: Black 2pt solid; text-align: right" title="Total">4,267</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock', window );">The changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively</a></td>
<td class="text"><p id="xdx_897_eus-gaap--ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_znT8pIrL4lxj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B5_zNm5iYNaqKoe">The
changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Notes:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Balance as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--FairValueHedgeAssetsAtFairValue_iS_pn3n3_uUSD_c20240701__20250331_zf8QPA9juSu8" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">7,089</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in">Principal payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--DebtInstrumentPeriodicPayment_iN_pn3n3_di_uUSD_c20240701__20250331_zWFDZCj70qz5" style="text-align: right" title="Principal payments">(7,129</td><td style="text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_ecustom--ChangeInFairValue_pn3n3_uUSD_c20240701__20250331_zldSClW4I4pe" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">40</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Balance as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98B_eus-gaap--FairValueHedgeAssetsAtFairValue_iE_pn3n3_uUSD_c20240701__20250331_zyIzKAw3DEWd" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"><span style="-sec-ix-hidden: xdx2ixbrl0871">-</span></td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock', window );">Schedule of change in the April 2024 Warrant liability</a></td>
<td class="text"><p id="xdx_89D_eus-gaap--ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_zbgwrANzj9Va" style="text-indent: 40pt; margin-top: 0; margin-bottom: 0"><span id="xdx_8BD_z6jYoWuBwGo8" style="display: none; visibility: hidden">Schedule of change in the April 2024 Warrant liability</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in">April 2024 Warrant Liability:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--OtherLiabilitiesFairValueDisclosure_iS_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zsCH2arTUxMd" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">298</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--FairValueAdjustmentOfWarrants_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zyeEZlSJ5WZ8" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">42</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iE_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZDMsiVhYY98" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024">340</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
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<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of convertible debt instrument. Includes, but is not limited to, principal amount and amortized premium or discount.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the reconciliation of beginning and ending balances of the fair value of plan assets of pension plans and/or other employee benefit plans showing separately, if applicable, the effects during the period attributable to each of the following: actual return on plan assets, foreign currency exchange rate changes, contributions by the employer, contributions by plan participants, benefits paid, business combinations, divestitures, and settlements.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 715<br> -SubTopic 20<br> -Subparagraph (b)<br> -Name Accounting Standards Codification<br> -Paragraph 1<br> -Section 50<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of derivative liabilities at fair value.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the detailed components of other nonoperating expenses. This disclosure may include methodology, assumptions and amounts for : (a) losses on securities (net of profits) and (b) miscellaneous income deductions.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(9))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br></p></div>
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<html>
<head>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CLASS B COMMON STOCK OF ECRC (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureClassBCommonStockOfEcrcAbstract', window );"><strong>Class B Common Stock Of Ecrc</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock', window );">The Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs</a></td>
<td class="text"><p id="xdx_890_ecustom--ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_zgJJ5Nnde2Pk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8BC_z4gNwmGe0o78">The
Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td>
    <td style="text-align: justify"></td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">March 31, <br/>2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">June 30, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 1%">&#160;</td>
    <td style="width: 33%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_989_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250531__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zW7oNfbvoMB" style="width: 12%; text-align: center" title="Closing common share price">$1.97</td><td style="width: 1%">&#160;</td>
    <td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zBOa88lv04Dk" style="width: 12%; text-align: center" title="Closing common share price">$1.73</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Term (expiry)</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_906_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z7TXtWEBmSS" title="Term (expiry)">March 17, 2033</span></td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_90E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_znu6OAxdpjnf" title="Term (expiry)">March 17, 2033</span></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td>
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z3YQzsdRJoY" style="text-align: center" title="Implied volatility of public warrants">66.0%</td><td>&#160;</td>
    <td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zblp4qS8ZDAb" style="text-align: center" title="Implied volatility of public warrants">65.0%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td>
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zaSqn38L3mjc" style="text-align: center" title="Risk-free rate">4.13%</td><td>&#160;</td>
    <td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zNRqOxhsC6sa" style="text-align: center" title="Risk-free rate">4.35%</td></tr>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock', window );">The following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period ended March 31, 2025</a></td>
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following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period
ended March 31, 2025</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="width: 52%; text-indent: -0.125in; padding-left: 0.125in">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--ServicingLiabilityAtFairValueAmount_iS_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z8wXaXijv4Ti" style="width: 15%; text-align: right" title="Fair value at June 30, 2024">3,817</td><td style="width: 1%; text-align: left">&#160;</td></tr>
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    <td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ServicingLiabilityAtFairValueAdditions_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zEIYHzjr7jT2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">510</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in">Fair value as of March 31, 2025</td><td style="padding-bottom: 2pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98A_eus-gaap--ServicingLiabilityAtFairValueAmount_iE_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZ9KIE2jLI7l" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024">4,327</td><td style="padding-bottom: 2pt; text-align: left">&#160;</td></tr>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>COMMON SHARES (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EquityAbstract', window );"><strong>Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock', window );">Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants</a></td>
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<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">November Public Warrants:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series A Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="width: 34%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
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<p style="margin-top: 0; margin-bottom: 0">&#160;</p>

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<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom">
    <td style="padding-bottom: 1pt">November Private Warrants:</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 26%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
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</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock', window );">The following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities</a></td>
<td class="text"><p id="xdx_895_ecustom--ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_z4uzzhxwxmb1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B6_zpz79LdOELRc">The
following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities</span>.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">November Private Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 42%; text-align: justify">Fair value at issuance (November 13, 2024)</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_z7Uww5h43M27" style="width: 15%; text-align: right" title="Beginning balance">1,929</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify; padding-bottom: 1pt">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zLVJ4FdTSkyh" style="border-bottom: Black 1pt solid; text-align: right" title="Beginning balance">1,258</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify; padding-bottom: 1pt">Fair value as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zr8K1NdvbYAe" style="border-bottom: Black 2pt solid; text-align: right" title="Beginning balance">3,187</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock', window );">The following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants</a></td>
<td class="text"><p id="xdx_897_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_zOPFjWNTFfx5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8BC_zEpnDNRlsPo5">The
following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series A Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">Series B Public Warrants</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 34%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUK7ziTDjjDh" style="width: 10%; text-align: right" title="Closing common share price">2.25</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zrN5Qt4p0dab" style="width: 10%; text-align: right" title="Closing common share price">2.25</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUb1QydvvX2d" title="Term (years)::XDX::P4Y6M0D"><span style="-sec-ix-hidden: xdx2ixbrl0989">2.5</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zRnk9AZlDUq2" title="Historic equity volatility">73.18</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zKo75ks1eYp4" title="Historic equity volatility">73.36</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zYL97Ypuj8Yb" title="Risk-free rate">4.23</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z4UKwilL8PJ9" title="Risk-free rate">4.31</span></td><td style="text-align: left">%</td></tr>
</table>
<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock', window );">The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:</a></td>
<td class="text"><p id="xdx_894_ecustom--ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_zvI9NWNFkM5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B3_zSklU7RVUor9" style="display: none; visibility: hidden">The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Three Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="6" style="text-align: center">For The Nine Months <br/>Ended March 31,</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2025</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: right">2024</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 44%; text-align: justify">Common Shares issued</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_982_ecustom--CommonStockSharesIssued1_pid_uShares_c20250101__20250331_zrOD8Dq57C8l" style="width: 10%; text-align: right" title="Common shares issued">709,000</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_988_ecustom--CommonStockSharesIssued1_pid_uShares_c20240101__20240331_z7jh3g1h800i" style="width: 10%; text-align: right" title="Common shares issued">242,500</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_983_ecustom--CommonStockSharesIssued1_pid_uShares_c20240701__20250331_zYq2OiXmbHgg" style="width: 10%; text-align: right" title="Common shares issued">1,919,250</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98F_ecustom--CommonStockSharesIssued1_pid_uShares_c20230701__20240331_zveGHwfNQHS5" style="width: 10%; text-align: right" title="Common shares issued">462,500</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Gross funds received</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20250101__20250331_z0D0vkRXvHcc" style="text-align: right" title="Gross funds received">1,286</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240101__20240331_ztdZHkLeFdEc" style="text-align: right" title="Gross funds received">607</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_988_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240701__20250331_znZQStku6bth" style="text-align: right" title="Gross funds received">3,111</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20230701__20240331_zejVnhcf1Ni3" style="text-align: right" title="Gross funds received">1,373</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Market value of Common Shares Issued <br/></td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_988_eus-gaap--StockIssued1_c20250101__20250331_zQmRtplEnIn7" style="text-align: right" title="Market Value of Shares Issued">1,328</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--StockIssued1_c20240101__20240331_zyW8adFDxu29" style="text-align: right" title="Market Value of Shares Issued">622</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--StockIssued1_c20240701__20250331_zAUsQIDLSPx1" style="text-align: right" title="Market Value of Shares Issued">3,191</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--StockIssued1_c20230701__20240331_ztUs3rcYqoye" style="text-align: right" title="Market Value of Shares Issued">1,451</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Loss on issuance</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20250101__20250331_zR5OagxFirVk" style="text-align: right" title="(Gain)/Loss on Issuance">42</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240101__20240331_zg4j1FyMYBJa" style="text-align: right" title="(Gain)/Loss on Issuance">15</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240701__20250331_zg3xNy9XE5qj" style="text-align: right" title="(Gain)/Loss on Issuance">80</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20230701__20240331_zcQh8CoD3Wt3" style="text-align: right" title="(Gain)/Loss on Issuance">78</td><td style="text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfStockOptionRollForwardTableTextBlock', window );">Schedule Of Stock Option</a></td>
<td class="text"><p id="xdx_89F_ecustom--ScheduleOfStockOptionRollForwardTableTextBlock_zErRuunJX81b" style="margin-top: 0; margin-bottom: 0"><span id="xdx_8BF_zjCXsQ7AAX0h" style="display: none; visibility: hidden">Schedule Of Stock Option</span></p>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in">
<tr style="vertical-align: bottom">
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exercised</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 1pt; text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cancelled/expired</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pid_di_uShares_c20240701__20250331_zJfzzDIsW9Bj" style="border-bottom: Black 1pt solid; text-align: right" title="Cancelled/expired (in shares)">(362,500</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt">&#160;</td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Balance, March 31, 2025</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_uUSDPShares_c20240701__20250331_zhkiFsVxUxA7" style="border-bottom: Black 2pt solid; padding-bottom: 1pt; text-align: right" title="Ending balance">3.17</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock', window );">Schedule of warrant transactions</a></td>
<td class="text"><p id="xdx_892_eus-gaap--ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_z3V9Yudh1Fk3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif; display: none; visibility: hidden"><span id="xdx_8B5_z9tGUNRTnXs7">Schedule of warrant transactions</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif"></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Number of Warrants</td><td style="padding-bottom: 1pt">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">Weighted Average Exercise Price</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 73%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Balance, June 30, 2024</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightOutstanding_iS_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zknXkem9h744" style="width: 10%; text-align: right" title="Beginning balance">18,563,561</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iS_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zW5wmK58hCb9" style="width: 10%; text-align: right" title="Beginning balance">10.53</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;Granted</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98D_ecustom--ClassOfWarrantOrRightGranted_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zs8SuILVanx1" style="text-align: right" title="Granted">12,490,252</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceGranted_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zx8JsIihQEKe" style="text-align: right" title="Granted">2.00</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;Exercised</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_ecustom--ClassOfWarrantOrRightExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJiabeZfP21j" style="text-align: right" title="Exercised">(230,000</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_981_ecustom--ClassOfWarrantOrRightExercisePriceExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zRBud6hDklJj" style="text-align: right" title="Exercised">1.75</td><td style="text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-left: 0.125in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;Expired</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceExpired_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJZW14Ui7P5b" style="text-align: right" title="Expired">9.44</td><td style="text-align: left">&#160;</td></tr>
</table>
<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt; text-align: left; width: 73%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Balance, March 31, 2025</span></td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%">&#160;</td><td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iE_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zq84RogyWwXg" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance">29,520,695</td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td><td style="padding-bottom: 1pt; width: 1%">&#160;</td>
    <td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%">$</td><td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iE_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeU0ShjNHoua" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance">7.12</td><td style="padding-bottom: 1pt; text-align: left; width: 1%">&#160;</td></tr>
</table>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock', window );">As of March 31, 2025, the Company had outstanding exercisable Warrants, as follows</a></td>
<td class="text"><p id="xdx_89B_ecustom--ScheduleOfOutstandingExercisableWarrantsTableTextBlock_zEslwoVmmbKl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font: 10pt Times New Roman, Times, Serif"><span id="xdx_8B1_zwgc0kxq5yOf">As
of March 31, 2025, the Company had outstanding exercisable Warrants, as follows</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 52%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: center">Number</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right; padding-bottom: 1pt">Exercise Price</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">Expiry Date</td>
    <td style="border-bottom: Black 1pt solid">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_znmWG5q11Rr7" style="width: 10%; text-align: right" title="Number of share outstanding">250,000</td><td style="width: 4%">&#160;</td>
    <td style="width: 12%; text-align: right">$<span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zkOT0ptpe7vc" title="Exercise price">4.60</span></td><td style="width: 4%">&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zAaRkT6OD0Eb" style="width: 21%; text-align: right" title="Expiry date">September 1, 2025</td>
    <td style="width: 1%">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_989_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_z1PAG4RB6qP9" style="text-align: right" title="Number of share outstanding">413,432</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_901_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zccv4H5D2tga" title="Exercise price">3.54</span></td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zFPH8hXSimn6" style="text-align: right" title="Expiry date">December 22, 2025</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_982_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zOD2Vwt5jvYd" style="text-align: right" title="Number of share outstanding">315,000</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zml2rz96qtza" title="Exercise price">2.20</span></td><td>&#160;</td>
    <td id="xdx_984_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zxGrrr2DcCMc" style="text-align: right" title="Expiry date">June 24, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98F_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zgtcKLAPfXz4" style="text-align: right" title="Number of share outstanding">1,442,090</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_z5NsXueGgbsh" title="Exercise price">1.75</span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zV2rhTaM7n9h" style="text-align: right" title="Expiry date">November 5, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_98B_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_zudt0nodwGB3" style="text-align: right" title="Number of share outstanding">2,199,602</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z6l8uGOopFq6" title="Exercise price">1.75</span></td><td>&#160;</td>
    <td id="xdx_983_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z4PusRkWWnN6" style="text-align: right" title="Expiry date">November 13, 2026</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zusDyUTV8uU7" style="text-align: right" title="Number of share outstanding">615,385</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zzl0d8tJOMF8" title="Exercise price">3.25</span></td><td>&#160;</td>
    <td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zOx5ZJgy35Wi" style="text-align: right" title="Expiry date">April 12, 2027</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_987_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zDWGjR8gfwS2" style="text-align: right" title="Number of share outstanding">2,577,320</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zBmEU13FwUD6" title="Exercise price">1.98</span></td><td>&#160;</td>
    <td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zKOX4YEAXvyj" style="text-align: right" title="Expiry date">August 2, 2027</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98D_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zNEWLgqbaKck" style="text-align: right" title="Number of share outstanding">15,666,626</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_ztgMmbLE4Eia" title="Exercise price">11.50</span></td><td>&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zTN5WawxZ2s9" style="text-align: right" title="Expiry date">March 17, 2028</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_980_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zO2kvjZ4nmri" style="text-align: right" title="Number of share outstanding">2,816,742</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_900_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zXNZl1yaYAGj" title="Exercise price">2.31</span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zm2RrfF7bSDb" style="text-align: right" title="Expiry date">September 17, 2028</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z82PxVQds6N" style="text-align: right" title="Number of share outstanding">1,288,660</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_zZch4Rvarty8" title="Exercise price">2.05</span></td><td>&#160;</td>
    <td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z7Lu80CtrLGb" style="text-align: right" title="Expiry date">January 31, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zqMh37e14hm4" style="text-align: right" title="Number of share outstanding">836,045</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_z2wbhm6eoYe3" title="Exercise price">2.07</span></td><td>&#160;</td>
    <td id="xdx_987_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zPcqYZ8eKPg6" style="text-align: right" title="Expiry date">November 5, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zuEQJ8HWYusk" style="border-bottom: Black 1pt solid; padding-bottom: 1pt; text-align: right" title="Number of share outstanding">1,099,793</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: right"><span id="xdx_906_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zMAcShPqlFr1" title="Exercise price">2.07</span></td><td style="padding-bottom: 1pt">&#160;</td>
    <td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zykADMu1lymb" style="text-align: right; padding-bottom: 1pt" title="Expiry date">November 13, 2029</td>
    <td>&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331_znkjsnzPdgT9" style="border-bottom: Black 2pt solid; text-align: right" title="Number of share outstanding">29,520,695</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="padding-bottom: 1pt; text-align: center">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="text-align: right; padding-bottom: 1pt">&#160;</td>
    <td>&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock', window );">The following observable data points were used in calculating the fair value of the Private Warrants using a Black-Scholes pricing model</a></td>
<td class="text"><p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_zO5nlUfr32E6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font: 10pt Times New Roman, Times, Serif">The
Company classifies the Private Warrants as Level 2 instruments under the fair value hierarchy as inputs into our pricing model
are based on observable data points. <span id="xdx_8B7_z5BRPxiunwme">The following observable data points were used in calculating the fair value of the Private
Warrants using a Black-Scholes pricing model</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid; text-align: justify">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">March 31,&#160; <br/>2025</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: right">June 30,&#160; <br/>2024</td>
    <td style="padding-bottom: 1pt; text-align: right">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 56%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zmmzHg7eLnha" style="width: 10%; text-align: right" title="Stock price on valuation date">$1.97</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 1%">&#160;</td>
    <td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zfQSHvU6uVja" style="width: 10%; text-align: right" title="Stock price on valuation date">$1.73</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Implied volatility of Public Warrants</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zRaF7BcL41Q6" title="Implied volatility of public warrants">64.3</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zv8iE6GEy7Uh" title="Implied volatility of public warrants">69.0</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Risk free rate</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z4BjPftoE7ld" title="Risk free rate">3.88</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zMUi0rOLnKcb" title="Risk free rate">4.45</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Dividend yield</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zkGZRysuk95g" title="Dividend yield">0</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zWwVcgrZs0uj" title="Dividend yield">0</span></td><td style="text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Expected warrant life in years</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zon97XCmEO91" title="Expected warrant life in years">3.0</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: right"><span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zKgRfAqfX6w" title="Expected warrant life in years">3.7</span></td><td style="text-align: left">&#160;</td></tr>
</table>
<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock', window );">The change in the Private Warrants liability is presented below</a></td>
<td class="text"><p id="xdx_894_ecustom--ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_zKZgpL8S3EN1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B1_zuV5sCPTXEzk">The
change in the Private Warrants liability is presented below</span>:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="text-align: justify">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">For the Nine Months Ended March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 62%">Fair value as of June 30, 2024</td><td style="width: 1%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_985_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zpdG3eXCbQJ6" style="width: 15%; text-align: right" title="Beginning balance">1,353</td><td style="width: 1%; text-align: left">&#160;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Change in fair value</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: left">&#160;</td><td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zycPTplq6B2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value">(680</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1pt">Fair value as of March 31, 2025</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_98E_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zQTpM9YuPcB9" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance">673</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
</table>

<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock', window );">The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:</a></td>
<td class="text"><p id="xdx_89A_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_ztLRO3RxnkG9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8BA_zvsP6orW6hW8" style="display: none; visibility: hidden">The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:</span></span></p>


<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 50%; margin-right: auto">
<tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1pt solid">Key Valuation Input</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 1pt solid; text-align: center">September 17, <br/>2024</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 39%; text-align: justify">Closing Common Share price</td><td style="width: 1%">&#160;</td>
    <td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zOeDnDhNQPGi" style="width: 10%; text-align: center" title="Closing common share price">$1.74</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Term (years)</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zlRpCuqjYDbe" title="Term (years)">4.0</span></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: justify">Historic equity volatility</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_z0fMlrvCt2J7" title="Historic equity volatility">67.14</span>%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: justify">Risk-free rate</td><td>&#160;</td>
    <td style="text-align: center"><span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zbxhLeGHZyGf" title="Risk-free rate">3.44</span>%</td></tr>
</table>

<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents fair value assets and liability measured on recurring and nonrecurring basis of warrants table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents fair value assets and liability measured on recurring and nonrecurring basis table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents schedule of changes in the fair value of the november private warrants table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents schedule of changes in the fair value of the private warrants table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents schedule of outstanding exercisable warrants table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents schedule of stock option roll forward table text block.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of financial instrument measured at fair value on recurring or nonrecurring basis. Includes, but is not limited to, instrument classified in shareholders' equity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 100<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 103<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LeaseCostTableTextBlock', window );">The Company incurred lease costs as follows</a></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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    <td id="xdx_492_20240101__20240331_ztCiHkRJfC33" style="display: none; text-align: center; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td><td style="display: none; visibility: hidden">&#160;</td>
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    <td id="xdx_49E_20240701__20250331_zLxzxipe0z5d" style="display: none; text-align: center; visibility: hidden">&#160;</td>
    <td style="display: none; text-align: center; visibility: hidden">&#160;</td>
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    <td style="text-align: center">&#160;</td><td>&#160;</td>
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Ended March 31,</td><td>&#160;</td><td>&#160;</td>
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<tr id="xdx_40A_eus-gaap--LeaseCostAbstract_iB_zsBMAo7nudK6" style="vertical-align: bottom">
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    <td style="text-align: left; padding-bottom: 1pt">Sublease income</td><td style="padding-bottom: 1pt">&#160;</td>
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    <td style="text-align: left; padding-bottom: 1pt">Lease cost &#8211; other operating expense:</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">22</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">21</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td style="border-bottom: Black 2pt solid; text-align: right">56</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
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maturities of lease liabilities are as follows as of March 31, 2025</span>:</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6<br></p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Fair Value Measurements (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresAbstract', window );"><strong>Fair Value Disclosures [Abstract]</strong></a></td>
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<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_989_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zG24VUjh7hve" style="border-bottom: Black 2pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1412">-</span></td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_983_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z8hBjP8AiL5f" style="border-bottom: Black 2pt solid; text-align: right">1,651</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td><td style="padding-bottom: 1pt">&#160;</td>
    <td style="border-bottom: Black 2pt solid; text-align: left">$</td><td id="xdx_987_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCmfEagoAwTf" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities">13,271</td><td style="padding-bottom: 1pt; text-align: left">&#160;</td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DESCRIPTION OF BUSINESS (Details Narrative)<br></strong></div></th>
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<div>Mar. 31, 2025 </div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
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<td><strong> Period Type:</strong></td>
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<title></title>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following table sets forth the computation of the Company&#8217;s basic and diluted net loss per share attributable to common shareholders: (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_NetIncomeLoss1', window );">Net loss</a></td>
<td class="num">$ (5,375)<span></span>
</td>
<td class="num">$ (4,225)<span></span>
</td>
<td class="num">$ (7,995)<span></span>
</td>
<td class="num">$ (10,999)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Net loss</a></td>
<td class="num">(78)<span></span>
</td>
<td class="num">(169)<span></span>
</td>
<td class="num">(177)<span></span>
</td>
<td class="num">(439)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic', window );">Net loss</a></td>
<td class="num">(5,297)<span></span>
</td>
<td class="num">(4,058)<span></span>
</td>
<td class="num">(7,818)<span></span>
</td>
<td class="num">(10,479)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest', window );">Net loss</a></td>
<td class="num">(41)<span></span>
</td>
<td class="num">(184)<span></span>
</td>
<td class="num">(591)<span></span>
</td>
<td class="num">(825)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic', window );">Net loss</a></td>
<td class="num">$ (5,256)<span></span>
</td>
<td class="num">$ (3,874)<span></span>
</td>
<td class="num">$ (7,227)<span></span>
</td>
<td class="num">$ (9,654)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted', window );">Net loss</a></td>
<td class="nump">45,893,738<span></span>
</td>
<td class="nump">35,160,333<span></span>
</td>
<td class="nump">41,777,986<span></span>
</td>
<td class="nump">33,421,185<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_EarningsLossPerShareBasicAndDiluted', window );">Net loss</a></td>
<td class="num">$ (0.11)<span></span>
</td>
<td class="num">$ (0.11)<span></span>
</td>
<td class="num">$ (0.17)<span></span>
</td>
<td class="num">$ (0.29)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_EarningsLossPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents earnings loss per share basic and diluted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_EarningsLossPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_NetIncomeLoss1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents net income loss.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_NetIncomeLoss1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents total weighted average number of share outstanding basic and diluted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of Net Income (Loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 9<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 8<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(17))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1A<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481175/810-10-55-4J<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 805<br> -SubTopic 60<br> -Name Accounting Standards Codification<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (g)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 11<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 5<br> -Subparagraph (SAB Topic 6.B)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-5<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-10<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-11<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) from continuing operations available to common shareholders.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 11<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-11<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
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<td>xbrli:stringItemType</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 810<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 19<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-19<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -SubTopic 10<br> -Topic 810<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481231/810-10-45-20<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -SubTopic 10<br> -Topic 810<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481203/810-10-50-1A<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Schedule of excluded from the dilutive securities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions', window );">Options</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">3,073,000<span></span>
</td>
<td class="nump">2,563,000<span></span>
</td>
<td class="nump">3,073,000<span></span>
</td>
<td class="nump">2,563,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants', window );">Warrants</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2],[3]</sup></td>
<td class="nump">29,520,695<span></span>
</td>
<td class="nump">18,585,105<span></span>
</td>
<td class="nump">29,520,695<span></span>
</td>
<td class="nump">18,585,105<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities', window );">Convertible debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">(0)<span></span>
</td>
<td class="nump">714,900<span></span>
</td>
<td class="nump">(0)<span></span>
</td>
<td class="nump">714,900<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DilutiveSecurities', window );">Total potential dilutive securities</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">$ 32,593,695<span></span>
</td>
<td class="nump">$ 21,863,005<span></span>
</td>
<td class="nump">$ 32,593,695<span></span>
</td>
<td class="nump">$ 21,863,005<span></span>
</td>
</tr>
<tr><td colspan="5"></td></tr>
<tr><td colspan="5"><table class="outerFootnotes" width="100%">
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">Earnout
    Shares are excluded as the vesting terms were not met as of the end of the reporting period.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">The
    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
    calculations as required if the securities were dilutive.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[3]</td>
<td style="vertical-align: top;" valign="top">Includes
    15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares. The remaining Warrants are each
    exercisable into one Common Share.</td>
</tr>
</table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DilutiveSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DilutiveSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 22<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-22<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 23<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-23<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 26<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-26<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants</td>
</tr>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 42<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-42<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 40<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-40<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
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<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of outstanding written put options using the reverse treasury stock method.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 23<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-23<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 35<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-35<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 260<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 36<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482689/260-10-45-36<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToWrittenPutOptions</td>
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<td>us-gaap_</td>
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<td>xbrli:sharesItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract</td>
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<td>duration</td>
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</table></div>
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</div>
</body>
</html>
</TEXT>
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<SEQUENCE>47
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>BASIS OF PRESENTATION (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DeferredFederalIncomeTaxExpenseBenefit', window );">Federal income tax payable</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 443<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax payable</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 101<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredFederalIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of deferred federal tax expense (benefit) attributable to income (loss) from continuing operations. Includes, but is not limited to, deferred national tax expense (benefit) for non-US (United States of America) jurisdiction.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 235<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h)(1)(Note 1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 270<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (ee)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 12<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 231<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 9<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 250<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 8<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 740<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482685/740-10-50-10<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -SubTopic 20<br> -Topic 740<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482659/740-20-45-2<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -SubTopic 10<br> -Topic 235<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>GOING CONCERN (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">$ 5,297<span></span>
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<td class="nump">$ 4,056<span></span>
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<td class="nump">$ 7,818<span></span>
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<td class="nump">$ 10,560<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward', window );">Capital deficit</a></td>
<td class="nump">169,730<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">169,730<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash</a></td>
<td class="nump">$ 1,294<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,294<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="nump">$ 2,012<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated undistributed deficit from capital loss carryforward of investment company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 12<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480990/946-20-50-12<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Schedule of account payable and accrued liabilities: (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_PayablesAndAccrualsAbstract', window );"><strong>Payables and Accruals [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccountsPayableTradeCurrent', window );">Accounts payable, trade</a></td>
<td class="nump">$ 716<span></span>
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<td class="nump">$ 1,417<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherAccruedLiabilitiesCurrent', window );">Trade payable accruals</a></td>
<td class="nump">260<span></span>
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<td class="nump">350<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TaxesPayableCurrentAndNoncurrent', window );">Environmental accruals</a></td>
<td class="nump">48<span></span>
</td>
<td class="nump">48<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure', window );">Loan origination fees payable to related party</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">28<span></span>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent', window );">Total accounts payable and accrued liabilities</a></td>
<td class="nump">$ 1,024<span></span>
</td>
<td class="nump">$ 1,843<span></span>
</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent</td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of trade and related party payables and accrued expenses.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2E<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483467/210-10-45-8<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PayablesAndAccrualsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TaxesPayableCurrentAndNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(15)(a))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TaxesPayableCurrentAndNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>R38.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The change in the Convertible Debentures is presented below (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ConvertibleDebt', window );">Balance at June 30, 2024</a></td>
<td class="nump">$ 571<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccretionExpenseIncludingAssetRetirementObligations', window );">Accretion expense</a></td>
<td class="nump">43<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_PrincipalAndAccruedInterestConverted', window );">Accretion expense</a></td>
<td class="num">(614)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ConvertibleDebt', window );">Balance, December 31, 2024</a></td>
<td class="text"> <span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_PrincipalAndAccruedInterestConverted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents principal and accrued interest converted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_PrincipalAndAccruedInterestConverted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccretionExpenseIncludingAssetRetirementObligations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of accretion expense, which includes, but is not limited to, accretion expense from asset retirement obligations, environmental remediation obligations, and other contingencies.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 410<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481879/410-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccretionExpenseIncludingAssetRetirementObligations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ConvertibleDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -SubTopic 10<br> -Topic 210<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16)(a)(2))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureAbstract</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>51
<FILENAME>R39.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following table discloses the components of interest expense associated with the Convertible Debentures (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ContractualInterest', window );">Contractual interest</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 45<span></span>
</td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">$ 266<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AmortizationOfFinancingCosts', window );">Amortization of discount and issuance costs</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">971<span></span>
</td>
<td class="nump">42<span></span>
</td>
<td class="nump">4,001<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccretionExpense', window );">Total</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 1,016<span></span>
</td>
<td class="nump">$ 43<span></span>
</td>
<td class="nump">$ 4,267<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ContractualInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents contractual interest.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ContractualInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccretionExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 420<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 35<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481639/420-10-35-4<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 420<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccretionExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AmortizationOfFinancingCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of amortization expense attributable to debt issuance costs.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(8))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 470<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1F<br> -Subparagraph (b)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 230<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 835<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482925/835-30-45-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AmortizationOfFinancingCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
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<td><strong> Data Type:</strong></td>
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<head>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueHedgeAssetsAtFairValue', window );">Fair value at June 30, 2024</a></td>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentPeriodicPayment', window );">Principal payments</a></td>
<td class="num">(7,129)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangeInFairValue', window );">Change in fair value</a></td>
<td class="nump">40<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueHedgeAssetsAtFairValue', window );">Fair value at December 31, 2024</a></td>
<td class="text"> <span></span>
</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents change in fair value.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of the required periodic payments including both interest and principal payments.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -SubTopic 10<br> -Topic 210<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentPeriodicPayment</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueHedgeAssetsAtFairValue">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value of all derivative assets designated as fair value hedging instruments.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 815<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4B<br> -Subparagraph (c)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueHedgeAssetsAtFairValue</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of change in the April 2024 Warrant liability (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Fair value at June 30, 2024</a></td>
<td class="nump">$ 3,817<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAdjustmentOfWarrants', window );">Change in fair value</a></td>
<td class="nump">144<span></span>
</td>
<td class="nump">$ 102<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Fair value at December 31, 2024</a></td>
<td class="nump">4,327<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinancialInstrumentAxis=niobf_EarnoutMember', window );">Earnout [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Fair value at June 30, 2024</a></td>
<td class="nump">298<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAdjustmentOfWarrants', window );">Change in fair value</a></td>
<td class="nump">42<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Fair value at December 31, 2024</a></td>
<td class="nump">$ 340<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 326<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAdjustmentOfWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expense (income) related to adjustment to fair value of warrant liability.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 25<br> -Paragraph 13<br> -SubTopic 10<br> -Topic 480<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481766/480-10-25-13<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesFairValueDisclosure">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of other liabilities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2E<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesFairValueDisclosure</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=niobf_EarnoutMember</td>
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<td>na</td>
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<html>
<head>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DEBT (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 17, 2024</div></th>
<th class="th"><div>Jul. 19, 2024</div></th>
<th class="th"><div>Apr. 12, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Number of shares</a></td>
<td class="nump">2,816,742<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_YorkvilleConvertibleDebtFinancingAgreementMember', window );">Yorkville Convertible Debt Financing Agreement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentIncreaseAccruedInterest', window );">Principal and accrued interest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 95<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Principal and accrued interest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 19<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementMember', window );">Purchase Agreement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Number of shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">615,385<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_InvestmentInterestRate', window );">Number of shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">25.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember', window );">Unsecured Debt [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentIncreaseAccruedInterest', window );">Principal and accrued interest</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 554<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtInstrumentRepaidPrincipal', window );">Aggregate principal amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 8,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentIncreaseAccruedInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Increase for accrued, but unpaid interest on the debt instrument for the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 235<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(f))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentIncreaseAccruedInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
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-Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1I<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1I<br><br>Reference 26: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 835<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 2<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2<br><br>Reference 27: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 835<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482900/835-30-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentRepaidPrincipal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of principal of debt repaid.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-03(i)(2))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentRepaidPrincipal</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481303/470-50-40-2<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481303/470-50-40-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentInterestRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Rate of interest on investment.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs (Details) - Measurement Input, Exercise Price [Member] - Valuation Technique, Option Pricing Model [Member] - Earnout [Member] - $ / shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
<th class="th"><div>May 31, 2025</div></th>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems', window );"><strong>Fair Value Measurement Inputs and Valuation Techniques [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="text">&#160;<span></span>
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<td class="nump">$ 1.73<span></span>
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<td class="text">Mar. 17,  2033<span></span>
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<td class="text">Mar. 17,  2033<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Implied volatility of public warrants</a></td>
<td class="nump">66.00%<span></span>
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<td class="nump">65.00%<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">4.13%<span></span>
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<td class="nump">4.35%<span></span>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents sharebased compensation arrangement by sharebased payment award fair value assumptions expected term2.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 103<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iv)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExercisePriceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExercisePriceMember</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueOptionPricingModelMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialInstrumentAxis=niobf_EarnoutMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=niobf_EarnoutMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>56
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
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<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period ended March 31, 2025 (Details) - Earnout [Member]<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ServicingLiabilityAtFairValueAmount', window );">Fair value at June 30, 2024</a></td>
<td class="nump">$ 3,817<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ServicingLiabilityAtFairValueAdditions', window );">Change in fair value</a></td>
<td class="nump">510<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ServicingLiabilityAtFairValueAmount', window );">Fair value at December 31, 2024</a></td>
<td class="nump">$ 4,327<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 326<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ServicingLiabilityAtFairValueAdditions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The value of new servicing liabilities, that are subsequently measured at fair value, acquired or created during the current period through assumptions of servicing obligations and servicing obligations that result from transfers of financial assets.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481229/860-50-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ServicingLiabilityAtFairValueAdditions</td>
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<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ServicingLiabilityAtFairValueAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value of a liability representing servicing arrangements under which the estimated future revenue from contractually specified servicing fees, late charges, and other ancillary revenues are not expected to adequately compensate the servicer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481229/860-50-50-3<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481260/860-50-45-2<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481260/860-50-45-1<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481260/860-50-45-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ServicingLiabilityAtFairValueAmount</td>
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<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialInstrumentAxis=niobf_EarnoutMember</td>
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<DOCUMENT>
<TYPE>XML
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>CLASS B COMMON STOCK OF ECRC (Details Narrative) - shares<br></strong></div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Dec. 20, 2024</div></th>
<th class="th"><div>Dec. 12, 2024</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureClassBCommonStockOfEcrcAbstract', window );"><strong>Class B Common Stock Of Ecrc</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">323,085<span></span>
</td>
<td class="nump">25,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number</a></td>
<td class="nump">3,073,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,495,500<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of options outstanding, including both vested and non-vested options.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</td>
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<td>xbrli:sharesItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants (Details) - $ / shares<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">7 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Nov. 05, 2024</div></th>
<th class="th"><div>Jan. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember', window );">Series A Public Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="nump">$ 1.455<span></span>
</td>
<td class="nump">$ 2.25<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">4 years 6 months<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="nump">67.43%<span></span>
</td>
<td class="nump">73.18%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="nump">4.14%<span></span>
</td>
<td class="nump">4.23%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember', window );">Series B Public Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="nump">$ 1.455<span></span>
</td>
<td class="nump">$ 2.25<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">2 years<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="nump">67.13%<span></span>
</td>
<td class="nump">73.36%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="nump">4.20%<span></span>
</td>
<td class="nump">4.31%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPrivateWarrantsMember', window );">Series A Private Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.97<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">80.09%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3.96%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPrivateWarrantsMember', window );">Series B Private Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.97<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">71.22%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3.94%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-4<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-5<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 17<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-17<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPrivateWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPrivateWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPrivateWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPrivateWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>59
<FILENAME>R47.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities (Details) - November Private Warrantsliabilities [Member]<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">5 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangesInFairValueOfInitialValuation1', window );">Beginning balance</a></td>
<td class="nump">$ 1,929<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs', window );">Beginning balance</a></td>
<td class="nump">1,258<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangesInFairValueOfInitialValuation1', window );">Beginning balance</a></td>
<td class="nump">$ 3,187<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangesInFairValueOfInitialValuation1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents changes in fair value of initial valuation1.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangesInFairValueOfInitialValuation1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in fair value from changes in the inputs used to calculate the fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(4)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481229/860-50-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=niobf_NovemberPrivateWarrantsliabilitiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=niobf_NovemberPrivateWarrantsliabilitiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>60
<FILENAME>R48.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants (Details) - $ / shares<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">7 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Nov. 05, 2024</div></th>
<th class="th"><div>Jan. 31, 2025</div></th>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember', window );">Series A Public Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="nump">$ 1.455<span></span>
</td>
<td class="nump">$ 2.25<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">4 years 6 months<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="nump">67.43%<span></span>
</td>
<td class="nump">73.18%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="nump">4.14%<span></span>
</td>
<td class="nump">4.23%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember', window );">Series B Public Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="nump">$ 1.455<span></span>
</td>
<td class="nump">$ 2.25<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">2 years<span></span>
</td>
<td class="text">4 years 6 months<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="nump">67.13%<span></span>
</td>
<td class="nump">73.36%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="nump">4.20%<span></span>
</td>
<td class="nump">4.31%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-4<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-5<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 17<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-17<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesAPublicWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=niobf_SeriesBPublicWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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</table></div>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period: (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EquityAbstract', window );"><strong>Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CommonStockSharesIssued1', window );">Common shares issued</a></td>
<td class="nump">709,000<span></span>
</td>
<td class="nump">242,500<span></span>
</td>
<td class="nump">1,919,250<span></span>
</td>
<td class="nump">462,500<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SaleOfStockConsiderationReceivedPerTransaction', window );">Gross funds received</a></td>
<td class="nump">$ 1,286<span></span>
</td>
<td class="nump">$ 607<span></span>
</td>
<td class="nump">$ 3,111<span></span>
</td>
<td class="nump">$ 1,373<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssued1', window );">Market Value of Shares Issued</a></td>
<td class="nump">1,328<span></span>
</td>
<td class="nump">622<span></span>
</td>
<td class="nump">3,191<span></span>
</td>
<td class="nump">1,451<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer', window );">(Gain)/Loss on Issuance</a></td>
<td class="nump">$ 42<span></span>
</td>
<td class="nump">$ 15<span></span>
</td>
<td class="nump">$ 80<span></span>
</td>
<td class="nump">$ 78<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CommonStockSharesIssued1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents common stock shares issued.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CommonStockSharesIssued1</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityAbstract</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Disclosure of the difference in values (gain (loss)) between the nonmonetary assets or liabilities exchanged with another entity inclusive of boot (small monetary consideration).</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 845<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482864/845-10-50-3<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 845<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482864/845-10-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonmonetaryTransactionGainLossRecognizedOnTransfer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SaleOfStockConsiderationReceivedPerTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SaleOfStockConsiderationReceivedPerTransaction</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssued1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The fair value of stock issued in noncash financing activities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482913/230-10-50-4<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482913/230-10-50-3<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482913/230-10-50-5<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssued1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
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<DOCUMENT>
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<FILENAME>R50.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
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<html>
<head>
<title></title>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Stock Option (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2025</div></th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_EquityAbstract', window );"><strong>Equity [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Beginning balance (in shares)</a></td>
<td class="nump">2,495,500<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Beginning balance</a></td>
<td class="nump">$ 4.78<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Granted (in shares)</a></td>
<td class="nump">945,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Granted</a></td>
<td class="nump">$ 1.41<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Exercised (in shares)</a></td>
<td class="num">(5,000)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice', window );">Exercised</a></td>
<td class="nump">$ 1.40<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod', window );">Cancelled/expired (in shares)</a></td>
<td class="num">(362,500)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice', window );">Cancelled/expired</a></td>
<td class="nump">$ 9.25<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Ending balance (in shares)</a></td>
<td class="nump">3,073,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Ending balance</a></td>
<td class="nump">$ 3.17<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Aggregate intrinsic value</a></td>
<td class="nump">$ 530<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2', window );">Weighted average remaining contractual life</a></td>
<td class="text">3 years 7 months 6 days<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(03)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(01)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of options outstanding, including both vested and non-vested options.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which option holders acquired shares when converting their stock options into shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(02)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(03)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(01)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 718<br> -SubTopic 10<br> -Subparagraph (e)(1)<br> -Name Accounting Standards Codification<br> -Paragraph 2<br> -Section 50<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of share options (or share units) exercised during the current period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -SubTopic 10<br> -Topic 505<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(02)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
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<html>
<head>
<title></title>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of warrant transactions (Details)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Ending balance</a></td>
<td class="nump">29,520,695<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember', window );">Warrant [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Beginning balance</a></td>
<td class="nump">18,563,561<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Beginning balance | $ / shares</a></td>
<td class="nump">$ 10.53<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightGranted', window );">Granted</a></td>
<td class="nump">12,490,252<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightExercisePriceGranted', window );">Granted | $ / shares</a></td>
<td class="nump">$ 2.00<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightExercised', window );">Exercised</a></td>
<td class="num">(230,000)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightExercisePriceExercised', window );">Exercised</a></td>
<td class="nump">1.75<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightExpired', window );">Expired</a></td>
<td class="num">(1,303,118)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ClassOfWarrantOrRightExercisePriceExpired', window );">Expired | $ / shares</a></td>
<td class="nump">$ 9.44<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Ending balance</a></td>
<td class="nump">29,520,695<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Ending balance | $ / shares</a></td>
<td class="nump">$ 7.12<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightExercisePriceExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right exercise price exercised.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightExercisePriceExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightExercisePriceExpired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right exercise price expired.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightExercisePriceExpired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightExercisePriceGranted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right exercise price granted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightExercisePriceGranted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right exercised.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightExpired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right expired.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightExpired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ClassOfWarrantOrRightGranted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents class of warrant or right granted.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ClassOfWarrantOrRightGranted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-4<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 5<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482765/220-10-50-5<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 1<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 17<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-17<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 830<br> -SubTopic 30<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 20<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>R52.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>As of March 31, 2025, the Company had outstanding exercisable Warrants, as follows (Details)<br></strong></div></th>
<th class="th">
<div>Mar. 31, 2025 </div>
<div>$ / shares </div>
<div>shares</div>
</th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">29,520,695<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice4.60Member', window );">Exercise Price 4.60 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">250,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 4.60<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Sep.  01,  2025<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice3.54Member', window );">Exercise Price 3.54 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">413,432<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 3.54<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Dec. 22,  2025<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.20Member', window );">Exercise Price 2.20 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">315,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 2.20<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Jun. 24,  2026<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice1.75Member', window );">Exercise Price 1.75 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">1,442,090<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 1.75<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Nov.  05,  2026<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice01.75Member', window );">Exercise Price 01.75 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">2,199,602<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 1.75<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Nov. 13,  2026<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice3.25Member', window );">Exercise Price 3.25 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">615,385<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 3.25<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Apr. 12,  2027<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice1.98Member', window );">Exercise Price 1.98 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">2,577,320<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 1.98<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Aug.  02,  2027<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice11.50Member', window );">Exercise Price 11.50 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">15,666,626<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 11.50<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Mar. 17,  2028<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.31Member', window );">Exercise Price 2.31 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">2,816,742<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 2.31<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Sep. 17,  2028<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.05Member', window );">Exercise Price 2.05 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">1,288,660<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 2.05<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Jan. 31,  2029<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.07Member', window );">Exercise Price 2.07 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">836,045<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 2.07<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Nov.  05,  2029<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice02.07Member', window );">Exercise Price 02.07 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number of share outstanding</a></td>
<td class="nump">1,099,793<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Exercise price | $ / shares</a></td>
<td class="nump">$ 2.07<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate', window );">Expiry date</a></td>
<td class="text">Nov. 13,  2029<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsAndRightsOutstandingMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsAndRightsOutstandingMaturityDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice4.60Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice3.54Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.20Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice1.75Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice01.75Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice3.25Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice1.98Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice1.98Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice11.50Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice11.50Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.31Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.05Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.07Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice2.07Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice02.07Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=niobf_ExercisePrice02.07Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>65
<FILENAME>R53.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
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</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The following observable data points were used in calculating the fair value of the Private Warrants using a Black-Scholes pricing model (Details) - Fair Value, Inputs, Level 2 [Member] - $ / shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_srt_PlatformOperatorCryptoAssetLineItems', window );"><strong>Platform Operator, Crypto Asset [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice', window );">Stock price on valuation date</a></td>
<td class="nump">$ 1.97<span></span>
</td>
<td class="nump">$ 1.73<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Implied volatility of public warrants</a></td>
<td class="nump">64.30%<span></span>
</td>
<td class="nump">69.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk free rate</a></td>
<td class="nump">3.88%<span></span>
</td>
<td class="nump">4.45%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate', window );">Dividend yield</a></td>
<td class="nump">0.00%<span></span>
</td>
<td class="nump">0.00%<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Expected warrant life in years</a></td>
<td class="text">3 years<span></span>
</td>
<td class="text">3 years 8 months 12 days<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_PlatformOperatorCryptoAssetLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 405<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 5.FF.Q2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147476188/405-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_PlatformOperatorCryptoAssetLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>srt_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>66
<FILENAME>R54.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The change in the Private Warrants liability is presented below (Details) - Note Warrant [Member]<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2025 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangesInFairValueOfInitialValuation1', window );">Beginning balance</a></td>
<td class="nump">$ 1,353<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs', window );">Change in fair value</a></td>
<td class="num">(680)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_ChangesInFairValueOfInitialValuation1', window );">Beginning balance</a></td>
<td class="nump">$ 673<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_ChangesInFairValueOfInitialValuation1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents changes in fair value of initial valuation1.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_ChangesInFairValueOfInitialValuation1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in fair value from changes in the inputs used to calculate the fair value of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 860<br> -SubTopic 50<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(4)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481229/860-50-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockLineItems</td>
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<td>na</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=us-gaap_NoteWarrantMember</td>
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</DOCUMENT>
<DOCUMENT>
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<SEQUENCE>67
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs: (Details) - Measurement Input, Exercise Price [Member] - Black Scholes Valuation [Member]<br></strong></div></th>
<th class="th">
<div>Sep. 17, 2024 </div>
<div>$ / shares</div>
</th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems', window );"><strong>Fair Value Measurement Inputs and Valuation Techniques [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Closing common share price</a></td>
<td class="nump">$ 1.74<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1', window );">Term (years)</a></td>
<td class="text">4 years<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Historic equity volatility</a></td>
<td class="nump">67.14%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum', window );">Risk-free rate</a></td>
<td class="nump">3.44%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 103<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharePrice</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(i)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExercisePriceMember</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ValuationTechniqueAxis=niobf_BlackScholesValuationMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>COMMON SHARES (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Dec. 23, 2024</div></th>
<th class="th"><div>Nov. 13, 2024</div></th>
<th class="th"><div>Nov. 05, 2024</div></th>
<th class="th"><div>Nov. 04, 2024</div></th>
<th class="th"><div>Sep. 17, 2024</div></th>
<th class="th"><div>Jan. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Nov. 30, 2024</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees', window );">Description of warrants</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">On
November 13, 2024, the Company closed a non-brokered private placement (the &#8220;November 2024 Private Offering&#8221;), pursuant
to binding subscription agreements with certain accredited investors as part of a non-brokered private placement of 2,199,602
units of the Company (the &#8220;November 2024 Units&#8221;). Each November 2024 Unit consisted of one Common Share, one Warrant
(a &#8220;Series A Private Warrant&#8221;) to purchase one Common Share, and one-half of one Warrant (each whole such Warrant,
a &#8220;Series B Private Warrant&#8221; and, together with the Series A Private Warrants, the &#8220;November Private Warrants&#8221;),
with each Series B Private Warrant entitling the holder thereof to purchase one additional Common Share. Each November 2024 Unit
was issued and sold at a price of $1.57. The gross proceeds of the November 2024 Private Offering were approximately $3,500 before
deducting offering expenses. Certain directors and officers of the Company (the &#8220;Insider Investors&#8221;) purchased November
2024 Units at a price of $1.7675 per November 2024 Unit, which price includes $0.1975 per November 2024 Private Warrant and allowed
such directors and officers to participate in the November 2024 Private Offering in accordance with the rules of the Nasdaq Stock
Market LLC (the &#8220;Nasdaq&#8221;). The Series A Private Warrants have an exercise price of $1.75 per underlying Common Share,
are exercisable immediately, and will expire on November 13, 2026. The Series B Private Warrants have an exercise price of $2.07
per underlying Common Share, are exercisable beginning six months and one day from the date of issuance and will expire on November
13, 2029. The Company recorded a non-cash expense of $34 and $110 to other operating expenses and employee related costs, respectively,
representing the excess of fair value of the November 2024 Units over the purchase price paid by Insider Investors.<span></span>
</td>
<td class="text">On
November 5, 2024, the Company closed an underwritten public offering (the &#8220;November 2024 Registered Offering&#8221;), pursuant
to the underwriting agreement, dated November 3, 2024 (the &#8220;Underwriting Agreement&#8221;), with Maxim Group LLC, as underwriter
(&#8220;Maxim&#8221;), which consisted of 1,592,356 Common Shares, 1,672,090 Warrants (the &#8220;Series A Public Warrants&#8221;)
to purchase up to an additional 1,672,090 Common Shares and 836,045 Warrants (the &#8220;Series B Public Warrants&#8221; and,
together with the Series A Public Warrants, the &#8220;November Public Warrants&#8221;) to purchase up to an additional 836,045
Common Shares. Each Common Share was sold together with one Series A Public Warrant and one-half of one Series B Public Warrant
at a combined public offering price of $1.57. The gross proceeds from the November 2024 Registered Offering were $2,501before
deducting underwriting discounts and offering expenses. The November Public Warrants were classified as equity instruments and
accordingly, the net proceeds were allocated based on the relative fair values of the Common Shares and the November Public Warrants
on the date of issuance, with $943 allocated to the fair value of the November Public Warrants and the balance of the proceeds
of $1,558 allocated to Common Shares. The Company incurred total transaction costs related to the November 2024 Registered Offering
$1,226, which were treated as share issuance costs at closing. The Series A Public Warrants have an exercise price of $1.75 per
underlying Common Share, are exercisable immediately, and will expire on November 5, 2026. The Series B Public Warrants have an
exercise price of $2.07 per underlying Common Share, are exercisable beginning six months and one day from the date of issuance
and will expire on November 5, 2029. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day over-allotment
option to purchase (i) 238,853 additional Common Shares and (ii) 358,280 Option Warrants (as defined below) to purchase up to
an aggregate of 358,280 Common Shares. &#8220;Option Warrant&#8221; means one Series A Public Warrant combined with one-half of
one Series B Public Warrant. On November 4, 2024, Maxim partially exercised its over-allotment option to purchase 79,734 additional
Series A Public Warrants and 39,867 additional Series B Public Warrants, which amounts are included in the amounts discussed above
and were issued at closing of the November 2024 Registered Offering.<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueOptionChangesInFairValueGainLoss1', window );">Fair value of non operating gain/loss</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,928,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_RegisteredOffering', window );">Registered Offering</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 161,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_PrivateOffering', window );">Private Offering</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 60,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CommonShareDescription', window );">Subsequent event, description</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">On
January 31, 2025, the Company closed an underwritten registered direct offering (the &#8220;January 2025 Offering&#8221;), pursuant
to an underwriting agreement, dated January 29, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold
2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to 2,577,320 Common Shares (the &#8220;January 2025 Series
A Warrants&#8221;) and 1,288,660 Series B warrants to purchase up to an additional 1,288,660 Common Shares (the &#8220;January
2025 Series B Warrants&#8221; and, together with the January 2025 Series A Warrants, the &#8220;January 2025 Warrants&#8221;).
Each Common Share was sold together with one January 2025 Series A Warrant and one-half of one January 2025 Series B Warrant at
a combined public offering price of $1.94. The gross proceeds from the January 2025 Offering were approximately $5,000 before
deducting underwriting discounts and offering expenses. The January 2025 Warrants were classified as equity instruments and accordingly,
the net proceeds were allocated based on the relative fair values of the Common Shares and the January 2025 Warrants on the date
of issuance, with $2,200 allocated to the fair value of the January 2025 Warrants and the balance of the proceeds of $2,800 allocated
to Common Shares. The Company incurred total transaction costs related to the January 2025 Offering of $799, which were treated
as share issuance costs at closing. The January 2025 Series A Warrants have an exercise price of $1.98 per underlying Common Share,
are exercisable immediately, and will expire on August 2, 2027. The January 2025 Series B Warrants have an exercise price of $2.05
per underlying Common Share, are exercisable immediately, and will expire on January 31, 2029<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">945,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Stock issued, shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,816,742<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionAxis=niobf_LindGlobalAssetManagementThreeLLCMember', window );">Lind Global Asset Management III, LLC [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription', window );">Contingent consideration description</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">As
consideration for entering into the previously publicly disclosed Waiver and Consent Agreement, dated September 25, 2022 (the
&#8220;Lind Consent&#8221;), between the Company and Lind Global Asset Management III, LLC (&#8220;Lind III&#8221;), Lind III
received, amongst other things, the right to receive additional Warrants (the &#8220;Contingent Consent Warrants&#8221;) if on
September 17, 2024, the closing trading price of the Common Shares on the Toronto Stock Exchange or such other stock exchange
on which such shares may then be listed, is less than C$10.00, subject to adjustments. The number of Contingent Consent Warrants
to be issued, if any, is based on the Canadian dollar equivalent (based on the then current Canadian to U.S. dollar exchange rate
as reported by Bloomberg, L.P.) of $5,000 divided by the five-day volume weighted average price of the Common Shares on the date
of issuance<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TransactionTypeAxis=niobf_GXIIPrivateWarrantsMember', window );">GXII Private Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Warrants traded prior to the closing</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5,666,667<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TransactionTypeAxis=niobf_LindConsentWarrantIssuanceMember', window );">Lind Consent Warrant Issuance [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Common share exercise price, per share</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2.308<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants', window );">Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 5,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember', window );">Equity Option [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</a></td>
<td class="nump">935,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</a></td>
<td class="nump">$ 0.84<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate</a></td>
<td class="nump">4.44%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate</a></td>
<td class="nump">67.20%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherExpenses', window );">Other Expenses</a></td>
<td class="nump">$ 781,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember', window );">Common Stock [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueOther', window );">Remaining proceeds from private warrants</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,573,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Warrants traded prior to the closing</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">243,692<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">243,692<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember', window );">Warrant [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees', window );">Description of warrants</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Each
Private Warrant entitles the holder to the right to purchase 1.11829212 Common Shares at an exercise price of $11.50 per 1.11829212
Common Shares (subject to adjustments for stock splits, stock dividends, reorganizations, recapitalizations and the like).<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_WarrantsTradedPriorToClosing', window );">Warrants traded prior to the closing</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">15,666,626<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Warrants traded prior to the closing</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">9,999,959<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Common share exercise price, per share</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7.12<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 10.53<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember', window );">Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction', window );">Shares issue</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,199,602<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesAMember', window );">Purchase Agreement Series A [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DebtInstrumentIssuedPrincipalshars', window );">Debt Instrument Issued Principal shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">79,734<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesBMember', window );">Purchase Agreement Series B [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockLineItems', window );"><strong>Subsidiary, Sale of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DebtInstrumentIssuedPrincipalshars', window );">Debt Instrument Issued Principal shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">39,867<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CommonShareDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>This element represents common share description.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CommonShareDescription</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_DebtInstrumentIssuedPrincipalshars">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents Debt Instrumen tIssued Principal shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_DebtInstrumentIssuedPrincipalshars</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_PrivateOffering">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents private offering.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_PrivateOffering</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_RegisteredOffering">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents registered offering.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_RegisteredOffering</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_WarrantsTradedPriorToClosing">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents warrants traded prior to the closing.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_WarrantsTradedPriorToClosing</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For contingent consideration arrangements recognized in connection with a business combination, this element represents a description of such arrangements.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(2)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479581/805-30-50-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessCombinationContingentConsiderationArrangementsDescription</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Description of reason for issuing warrant or right.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightReasonForIssuingToNonemployees</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueOptionChangesInFairValueGainLoss1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482907/825-10-50-30<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueOptionChangesInFairValueGainLoss1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of expense classified as other.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(6))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(4))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(ii)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The risk-free interest rate assumption that is used in valuing an option on its own shares.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (f)(2)(iv)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(01)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 718<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(1)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Value of preferred stock and warrants for common stock issued.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesIssuedForServices</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -SubTopic 10<br> -Topic 505<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 210<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 505<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478448/946-505-50-2<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(4)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-03(i)(1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 505<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Value of shares of stock issued attributable to transactions classified as other.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_BusinessAcquisitionAxis=niobf_LindGlobalAssetManagementThreeLLCMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessAcquisitionAxis=niobf_LindGlobalAssetManagementThreeLLCMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TransactionTypeAxis=niobf_GXIIPrivateWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TransactionTypeAxis=niobf_GXIIPrivateWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TransactionTypeAxis=niobf_LindConsentWarrantIssuanceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TransactionTypeAxis=niobf_LindConsentWarrantIssuanceMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DerivativeInstrumentRiskAxis=us-gaap_StockOptionMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesAMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesAMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesBMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=niobf_PurchaseAgreementSeriesBMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>RELATED PARTY TRANSACTIONS (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">5 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 11, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Oct. 30, 2024</div></th>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherBorrowings', window );">Other Borrowings</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 504<span></span>
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</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueByLiabilityClassAxis=us-gaap_BorrowingsMember', window );">Borrowings [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LoanProcessingFee', window );">Loan Origination fees</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 41<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember', window );">Chief Executive Officer [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LoanProcessingFee', window );">Loan Origination fees</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent', window );">Accounts payable and accrued liabilities</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
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<td class="text">&#160;<span></span>
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<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_NonRevolvingCreditFacilityAgreementMember', window );">Non Revolving Credit Facility Agreement [Member] | Chief Executive Officer [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LongTermLineOfCredit', window );">Long-Term Line of Credit, Noncurrent</a></td>
<td class="nump">$ 2,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_TypeOfArrangementAxis=niobf_GeneralSecurityAgreementMember', window );">General Security Agreement [Member] | Chief Executive Officer [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionRate', window );">Related Party Transaction, Rate</a></td>
<td class="nump">10.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_LineOfCreditFacilityEstablishmentFee', window );">Line Of Credit Facility Establishment Fee</a></td>
<td class="nump">2.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_LineOfCreditFacilityEstablishmentFee">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents line of credit facility establishment fee.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_LineOfCreditFacilityEstablishmentFee</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(5))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(1))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LoanProcessingFee">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Expenses paid for obtaining loans which includes expenses such as application and origination fees.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LoanProcessingFee</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermLineOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -SubTopic 10<br> -Topic 210<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481573/470-10-45-13<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481573/470-10-45-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermLineOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherBorrowings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(13))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherBorrowings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 310<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 13<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147481990/310-10-45-13<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(c)(2)(i))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(c)(2)(ii))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(g)(3))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionRate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByLiabilityClassAxis=us-gaap_BorrowingsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByLiabilityClassAxis=us-gaap_BorrowingsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_ChiefExecutiveOfficerMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=niobf_NonRevolvingCreditFacilityAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=niobf_NonRevolvingCreditFacilityAgreementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=niobf_GeneralSecurityAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TypeOfArrangementAxis=niobf_GeneralSecurityAgreementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of exploration expenditures (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ExplorationExpense', window );">Exploration expenditures</a></td>
<td class="nump">$ 495<span></span>
</td>
<td class="nump">$ 489<span></span>
</td>
<td class="nump">$ 894<span></span>
</td>
<td class="nump">$ 2,417<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CostCentreAxis=niobf_TechnicalStudiesAndEngineeringMember', window );">Technical Studies And Engineering [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ExplorationExpense', window );">Exploration expenditures</a></td>
<td class="nump">107<span></span>
</td>
<td class="nump">53<span></span>
</td>
<td class="nump">111<span></span>
</td>
<td class="nump">350<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CostCentreAxis=niobf_FieldmanagementandotherMember', window );">Field management and other [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ExplorationExpense', window );">Exploration expenditures</a></td>
<td class="nump">315<span></span>
</td>
<td class="nump">136<span></span>
</td>
<td class="nump">616<span></span>
</td>
<td class="nump">418<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CostCentreAxis=niobf_MetallurgicaldevelopmentMember', window );">Metallurgical development [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ExplorationExpense', window );">Exploration expenditures</a></td>
<td class="nump">73<span></span>
</td>
<td class="nump">300<span></span>
</td>
<td class="nump">167<span></span>
</td>
<td class="nump">1,630<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_CostCentreAxis=niobf_GeologistAndFieldStaffMember', window );">Geologist And Field Staff [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ExplorationExpense', window );">Exploration expenditures</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 19<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ExplorationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&amp;G" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 932<br> -SubTopic 235<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 23<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477215/932-235-50-23<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ExplorationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CostCentreAxis=niobf_TechnicalStudiesAndEngineeringMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CostCentreAxis=niobf_TechnicalStudiesAndEngineeringMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CostCentreAxis=niobf_FieldmanagementandotherMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CostCentreAxis=niobf_FieldmanagementandotherMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CostCentreAxis=niobf_MetallurgicaldevelopmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CostCentreAxis=niobf_MetallurgicaldevelopmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_CostCentreAxis=niobf_GeologistAndFieldStaffMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_CostCentreAxis=niobf_GeologistAndFieldStaffMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
</body>
</html>
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<DOCUMENT>
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<DESCRIPTION>IDEA: XBRL DOCUMENT
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>The Company incurred lease costs as follows (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LeaseCostAbstract', window );"><strong>Operating Lease Cost:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_FixedRentExpense', window );">Fixed rent expense</a></td>
<td class="nump">$ 24<span></span>
</td>
<td class="nump">$ 23<span></span>
</td>
<td class="nump">$ 70<span></span>
</td>
<td class="nump">$ 68<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_VariableLeaseCost', window );">Variable rent expense</a></td>
<td class="nump">4<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="nump">11<span></span>
</td>
<td class="nump">10<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ShortTermLeaseCost', window );">Short-term lease cost</a></td>
<td class="nump">2<span></span>
</td>
<td class="nump">2<span></span>
</td>
<td class="nump">7<span></span>
</td>
<td class="nump">7<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubleaseIncome', window );">Sublease income</a></td>
<td class="num">(8)<span></span>
</td>
<td class="num">(7)<span></span>
</td>
<td class="num">(32)<span></span>
</td>
<td class="num">(23)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LeaseCost', window );">Lease cost &#8211; other operating expense:</a></td>
<td class="nump">$ 22<span></span>
</td>
<td class="nump">$ 21<span></span>
</td>
<td class="nump">$ 56<span></span>
</td>
<td class="nump">$ 62<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_FixedRentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents fixed rent expense.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_FixedRentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of lease cost recognized by lessee for lease contract.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 53<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeaseCostAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LeaseCostAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of short-term lease cost, excluding expense for lease with term of one month or less.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 53<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubleaseIncome">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of sublease income excluding finance and operating lease expense.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 53<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (e)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubleaseIncome</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 53<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (d)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VariableLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>72
<FILENAME>R60.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>The maturities of lease liabilities are as follows as of March 31, 2025 (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue', window );">Total remaining lease payments</a></td>
<td class="nump">$ 172<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_LessAmountOfPaymentsRepresentingInterest', window );">Less portion of payments representing interest</a></td>
<td class="num">(22)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Present value of lease payments</a></td>
<td class="nump">150<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">&#160; Less current portion of lease payments</a></td>
<td class="num">(98)<span></span>
</td>
<td class="num">$ (96)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Non-current lease liability</a></td>
<td class="nump">$ 52<span></span>
</td>
<td class="nump">$ 104<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_DisclosureLeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_DisclosureLeasesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_LessAmountOfPaymentsRepresentingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents less amount of payments representing interest.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_LessAmountOfPaymentsRepresentingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 6<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478964/842-20-50-6<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 842<br> -SubTopic 20<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>73
<FILENAME>R61.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							} else { e.nextSibling.style.display='none'; }
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</head>
<body>
<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Schedule of fair values determined by level 3 inputs are unobservable data (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Jun. 30, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 1,294<span></span>
</td>
<td class="nump">$ 2,012<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_AvailableForSaleSecuritiesEquitySecuritiesOther', window );">Investment in equity securities</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">4<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total Assets</a></td>
<td class="nump">1,297<span></span>
</td>
<td class="nump">2,016<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Earnout Shares liability</a></td>
<td class="nump">4,327<span></span>
</td>
<td class="nump">3,817<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure', window );">Warrant liabilities</a></td>
<td class="nump">4,200<span></span>
</td>
<td class="nump">4,016<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinancialLiabilitiesFairValueDisclosure', window );">Total Liabilities</a></td>
<td class="nump">8,527<span></span>
</td>
<td class="nump">14,922<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">April 2024 notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7,089<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member', window );">Fair Value, Inputs, Level 1 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash and cash equivalents</a></td>
<td class="nump">1,294<span></span>
</td>
<td class="nump">2,012<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_AvailableForSaleSecuritiesEquitySecuritiesOther', window );">Investment in equity securities</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total Assets</a></td>
<td class="nump">1,297<span></span>
</td>
<td class="nump">2,016<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Earnout Shares liability</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure', window );">Warrant liabilities</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinancialLiabilitiesFairValueDisclosure', window );">Total Liabilities</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">April 2024 notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Fair Value, Inputs, Level 2 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash and cash equivalents</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_AvailableForSaleSecuritiesEquitySecuritiesOther', window );">Investment in equity securities</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total Assets</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Earnout Shares liability</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure', window );">Warrant liabilities</a></td>
<td class="nump">4,200<span></span>
</td>
<td class="nump">1,651<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinancialLiabilitiesFairValueDisclosure', window );">Total Liabilities</a></td>
<td class="nump">4,200<span></span>
</td>
<td class="nump">1,651<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">April 2024 notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member', window );">Fair Value, Inputs, Level 3 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure', window );">Cash and cash equivalents</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_AvailableForSaleSecuritiesEquitySecuritiesOther', window );">Investment in equity securities</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_AssetsFairValueDisclosure', window );">Total Assets</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesFairValueDisclosure', window );">Earnout Shares liability</a></td>
<td class="nump">4,327<span></span>
</td>
<td class="nump">3,817<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure', window );">Warrant liabilities</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">2,365<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_FinancialLiabilitiesFairValueDisclosure', window );">Total Liabilities</a></td>
<td class="nump">$ 4,327<span></span>
</td>
<td class="nump">13,271<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">April 2024 notes</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 7,089<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_niobf_AvailableForSaleSecuritiesEquitySecuritiesOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The element represents available for sale securities equity securities other.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">niobf_AvailableForSaleSecuritiesEquitySecuritiesOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>niobf_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of asset recognized for present right to economic benefit.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 100<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 100<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinancialLiabilitiesFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2E<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinancialLiabilitiesFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NotesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -SubTopic 10<br> -Topic 210<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 942<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16)(a)(2))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 944<br> -SubTopic 210<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(17))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NotesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of other liabilities.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2E<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesFairValueDisclosure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of warrants not settleable in cash classified as equity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2E<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 820<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsNotSettleableInCashFairValueDisclosure</td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CYBERSECURITY INCIDENT (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">2 Months Ended</th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
<th class="th"><div>Mar. 31, 2025</div></th>
<th class="th"><div>Mar. 31, 2024</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_niobf_DisclosureCybersecurityIncidentAbstract', window );"><strong>Cybersecurity Incident</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_OtherCostAndExpenseOperating', window );">Charge on operating expenses</a></td>
<td class="nump">$ 506<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProfessionalFees', window );">Professional Fees</a></td>
<td class="nump">$ 10<span></span>
</td>
<td class="nump">$ 636<span></span>
</td>
<td class="nump">$ 633<span></span>
</td>
<td class="nump">$ 1,858<span></span>
</td>
<td class="nump">$ 2,772<span></span>
</td>
</tr>
</table>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 48<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Topic 220<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(3))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Topic 944<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(7)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherCostAndExpenseOperating</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 280<br> -SubTopic 10<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 48<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Topic 946<br> -SubTopic 830<br> -Name Accounting Standards Codification<br> -Section 55<br> -Paragraph 10<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 3<br> -Subparagraph (k)<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479105/946-220-45-3<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Topic 946<br> -SubTopic 220<br> -Name Accounting Standards Codification<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.6-07(2)(b))<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<span style="display: none;">v3.25.1</span><table class="report" border="0" cellspacing="2" id="id2">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>SUBSEQUENT EVENTS (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">1 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Apr. 22, 2025</div></th>
<th class="th"><div>Sep. 17, 2024</div></th>
<th class="th"><div>May 08, 2025</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventLineItems', window );"><strong>Subsequent Event [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
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<td class="text">&#160;<span></span>
</td>
<td class="nump">2,816,742<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember', window );">Subsequent Event [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventLineItems', window );"><strong>Subsequent Event [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_SubsequentEventDescription', window );">Subsequent event, description</a></td>
<td class="text">On April 17, 2025, Maxim partially exercised its over-allotment option to purchase 323,504 additional Common Shares at the closing. The gross proceeds from the April 2025 Offering were approximately $20,800 before deducting underwriting discounts and offering expenses.<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_ProceedsFromStockPlans', window );">Cash received</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3,599<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Issuance of common shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,568,694<span></span>
</td>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromStockPlans">
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the amount received from the stock plan during the period.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Name Accounting Standards Codification<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -SubTopic 10<br> -Topic 230<br> -Publisher FASB<br> -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromStockPlans</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Describes the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.</p></div>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.</p></div>
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&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;1.&lt;/span&gt;&lt;/td&gt;
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&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;NioCorp
Developments Ltd. (&#x201c;we,&#x201d; &#x201c;us,&#x201d; &#x201c;our,&#x201d; &#x201c;NioCorp&#x201d; or the &#x201c;Company&#x201d;)
was incorporated on February 27, 1987, under the laws of the Province of British Columbia and currently operates in &lt;span id="xdx_900_eus-gaap--NumberOfReportableSegments_dxL_uNumber_c20240701__20250331_zpzwVddMG7hc" title="Number of reportable segments::XDX::1"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0660"&gt;one&lt;/span&gt;&lt;/span&gt; reportable
operating segment consisting of exploration and development of mineral deposits in North America, specifically, the Company&#x2019;s
niobium, scandium, and titanium project (the &#x201c;Elk Creek Project&#x201d;) located in southeastern Nebraska.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

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Company currently earns no operating revenues and will require additional capital in order to advance the Elk Creek Project to
construction and commercial operation. As further discussed in Note 3, these matters raised substantial doubt about the Company&#x2019;s
ability to continue as a going concern, and the Company is dependent upon the generation of profits from mineral properties, obtaining
additional financing and maintaining continued support from its shareholders and creditors.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

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interim condensed consolidated financial statements have been prepared on a going concern basis that contemplates the realization
of assets and discharge of liabilities at their carrying values in the normal course of business for the foreseeable future. These
financial statements do not reflect any adjustments that may be necessary if the Company is unable to continue as a going concern.&lt;/span&gt;&lt;/p&gt;

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&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
accompanying interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting
principles of the United States of America (&#x201c;U.S. GAAP&#x201d;) and the rules and regulations of the Securities and Exchange
Commission (&#x201c;SEC&#x201d;). The interim condensed consolidated financial statements include the consolidated accounts of the
Company and its wholly owned subsidiaries with all significant intercompany transactions eliminated. The accounting policies followed
in preparing these interim condensed consolidated financial statements are those used by the Company as set out in the audited
consolidated financial statements for the year ended June 30, 2024. Certain transactions include reference to Canadian dollars
(&#x201c;C$&#x201d;) where applicable.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
the opinion of management, all adjustments considered necessary (including normal recurring adjustments) for a fair statement
of the financial position, results of operations, and cash flows as of March 31, 2025, and for all periods presented, have been
included in these interim condensed consolidated financial statements. Certain information and footnote disclosures normally included
in the consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to appropriate
SEC rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the audited
consolidated financial statements for the year ended June 30, 2024. The interim results are not necessarily indicative of results
for the full year ending June 30, 2025, or future operating periods.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_859_zq8owm1n5B25" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zYzGVE81EFQ1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;b)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_862_zRjSCAi4bsq9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Recent
    Accounting Standards&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="text-decoration: underline"&gt;Issued
and Not Effective&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
November 2023, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued Accounting Standards Update (&#x201c;ASU&#x201d;)
2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU expand public
entities&#x2019; segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the
Chief Operating Decision Maker and included within each reported measure of segment profit or loss, an amount and description
of its composition for other segment items, and interim disclosures of a reportable segment&#x2019;s profit or loss and assets.
The ASU will be effective for our annual report for the period ending June 30, 2025, and for interim &lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;period reports beginning
thereafter. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;/p&gt;







&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the
transparency and decision usefulness of income tax disclosures primarily through changes to the rate reconciliation and income
taxes paid information. ASU 2023-09&#160;is effective for our annual report for the period ending June 30, 2027, and for interim
period reports beginning thereafter. Early adoption is permitted and the amendments should be applied prospectively; however,
retrospective application is permitted. We are currently evaluating the impact of this ASU on our consolidated financial statements
and related disclosures.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures
(Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires the disclosure of additional information
related to certain costs and expenses, including amounts of inventory purchases, employee compensation, and depreciation and amortization
included in each income statement line item. This ASU also requires disclosure of the total amount of selling expenses and our
definition of selling expenses. This ASU is effective for our annual report for the period ending June 30, 2028, and for interim
period reports beginning thereafter on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating
the impact of adopting this ASU on our consolidated financial statements and disclosures.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;From
time to time, new accounting pronouncements are issued by the FASB that are adopted by the Company as of the specified effective
date. Unless otherwise discussed, management believes that the impact of recently issued standards did not or will not have a
material impact on the Company&#x2019;s consolidated financial statements upon adoption.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_85B_zlZ2SpKmfv1b" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;/p&gt;

&lt;p id="xdx_842_eus-gaap--UseOfEstimates_z71Bubq5JSH4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;c)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_861_zdYf8kkPbvTi" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Use
    of Estimates&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date
of the financial statements, and the reported amounts of expenses during the reporting period. The Company regularly evaluates
estimates and assumptions related to the carrying value of long-term assets, deferred income tax assets and related valuations,
liabilities related to the April 2024 Notes, Earnout Shares, Private Warrants, and November Private Warrants (each, as defined
below), and share-based compensation. The Company bases its estimates and assumptions on current facts, historical experience,
and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making
judgments about the other sources. The actual results experienced by the Company may differ materially and adversely from the
Company&#x2019;s estimates. To the extent there are material differences between estimates and the actual results, future results
of operations will be affected.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company acquired a federal income tax payable of $&lt;span id="xdx_90C_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_pn3n3_c20240701__20250331_zOoYBcaMwT4k" title="Federal income tax payable"&gt;443&lt;/span&gt; in connection with the GXII Transaction (as defined below). As a result
of post-transaction losses at Elk Creek Resources Corp. (&#x201c;ECRC&#x201d;), a partial release of the valuation allowance attributed
to the reduction of the acquired federal income tax payable of $&lt;span id="xdx_900_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3n3_di_c20230701__20240331_zb6y6xzWZZv8" title="Income tax payable"&gt;101&lt;/span&gt; was recorded as an income tax benefit in the condensed consolidated
statement of operations and comprehensive loss for the nine months ended March 31, 2024. The Company maintains a full valuation
allowance against future income tax assets as it is more likely than not that all of the assets will not be realized.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_853_znrVIgTwydTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_84C_eus-gaap--EarningsPerSharePolicyTextBlock_zQn1wmE6i4qh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;d)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_86C_zCDr6ddnVPu1" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Basic
    and Diluted Earnings per Share&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. &lt;span id="xdx_8B4_z3WPG2KSByGh"&gt;The following table sets forth the computation of the Company&#x2019;s basic and diluted net loss per share
attributable to common shareholders:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;









&lt;p style="font: 10pt Times New Roman,serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20250101__20250331_zzHGpfNRoFX9" style="width: 10%; text-align: right" title="Net loss"&gt;(5,375&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240101__20240331_zXjxAzdJTEA2" style="width: 10%; text-align: right" title="Net loss"&gt;(4,225&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240701__20250331_zeqjYhnBku5h" style="width: 10%; text-align: right" title="Net loss"&gt;(7,995&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20230701__20240331_zdARp9p1HME8" style="width: 10%; text-align: right" title="Net loss"&gt;(10,999&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Adjust:&#160;Net loss attributable to noncontrolling interest&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_z5qi0OPtkI7e" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(78&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20240101__20240331_zakDnliREFD1" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-169"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0694"&gt;(167&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zFQ3jLtwDnOg" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(177&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20230701__20240331_z6ALTSvJPoua" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-439"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0698"&gt;(520&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss available to participating securities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20250101__20250331_zxlswXtwv4n7" style="text-align: right" title="Net loss"&gt;(5,297&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240101__20240331_z63hjQRIXlg1" style="text-align: right" title="Net loss"&gt;(4,058&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240701__20250331_zKi4begln529" style="text-align: right" title="Net loss"&gt;(7,818&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20230701__20240331_zUYEWYCqnqK8" style="text-align: right" title="Net loss"&gt;(10,479&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributable to vested shares of ECRC Class B common stock&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_zBNZr5D3gTq6" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(41&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240101__20240331_zsd2vgu0d7U3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(184&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zsVBfensBPf3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(591&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20230701__20240331_z9R8I9QPPpNk" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(825&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributed to common shareholders - basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20250101__20250331_zM5GGDGdjbV1" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(5,256&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240101__20240331_zvJprVxEUZW5" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(3,874&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240701__20250331_zmEYmW2DOQFb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(7,227&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20230701__20240331_zCpaaozX6VH9" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(9,654&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;Denominator:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Weighted average shares outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20250101__20250331_zoqnfLGexiYf" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;45,893,738&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240101__20240331_zcFMb4OIUIcl" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;35,160,333&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240701__20250331_zc7hIX7eysqi" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;41,777,986&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20230701__20240331_z3EKvyG87Rnh" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;33,421,185&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Loss per Common Share outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20250101__20250331_z0cftbru2gql" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240101__20240331_z7XgFiuWkdy8" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240701__20250331_zXQyd8FW4PGb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.17&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20230701__20240331_zs6yfh3oSktd" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.29&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AE_zWHHH8IQ5bTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following common shares, no par value, of the Company (&#x201c;Common Shares&#x201d;) underlying options to purchase Common Shares
(&#x201c;Options&#x201d;), Common Share purchase warrants (&#x201c;Warrants&#x201d;), and outstanding convertible debt were&#160;antidilutive&#160;due
to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the three-month
periods indicated below.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden"&gt;Schedule of excluded from the dilutive securities&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three and Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Excluded potentially dilutive securities (1)(2):&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 69%"&gt;Options&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20250101__20250331_fKDEpKDIp_zTbZO9bf6sR8" title="Options"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240701__20250331_fKDEpKDIp_zSxsEeychVnl" title="Options"&gt;3,073,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240101__20240331_fKDEpKDIp_zpWclUG25wpc" title="Options"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20230701__20240331_fKDEpKDIp_zrMR5OBccJVe" title="Options"&gt;2,563,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Warrants (3)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20250101__20250331_fKDEpKDIpKDMp_z22JdkKNzMk3" title="Warrants"&gt;&lt;span id="xdx_905_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240701__20250331_fKDEpKDIpKDMp_zz9K0xenxltl" title="Warrants"&gt;29,520,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240101__20240331_fKDEpKDIpKDMp_z8XxHhboTuWb" title="Warrants"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20230701__20240331_fKDEpKDIpKDMp_zYGKMBESP9X1" title="Warrants"&gt;18,585,105&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Convertible debt&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20250101__20250331_fKDEpKDIp_z2XTdRDcl3n7" title="Convertible debt"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20240701__20250331_fKDEpKDIp_zK2Gmh3MJOUk" title="Convertible debt"&gt;-&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20240101__20240331_fKDEpKDIp_zv7Xbg34Jju5" title="Convertible debt"&gt;&lt;span id="xdx_907_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20230701__20240331_fKDEpKDIp_z12t66xsDOYk" title="Convertible debt"&gt;714,900&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2pt"&gt;Total potential dilutive securities&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20250101__20250331_fKDEpKDIp_zQKTcSCTFNAg" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90C_eus-gaap--DilutiveSecurities_c20240701__20250331_fKDEpKDIp_zoG2Xk15ISOi" title="Total potential dilutive securities"&gt;32,593,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20240101__20240331_fKDEpKDIp_z6etRUOkCaB6" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90B_eus-gaap--DilutiveSecurities_c20230701__20240331_fKDEpKDIp_z5lR1TSUZJDd" title="Total potential dilutive securities"&gt;21,863,005&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="width: 0.5in"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span id="xdx_F00_zJjeOH4F0ZDc" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(1)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zaTaMNK2FtTl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
    calculations as required if the securities were dilutive.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F03_z05lwOc5tmkg" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(2)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F14_z5tyB0Ae0f7d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Earnout
    Shares are excluded as the vesting terms were not met as of the end of the reporting period.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F05_zvw5CLyJTGA2" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(3)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zYAiZ0oCpwsb" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Includes
    15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares. The remaining Warrants are each
    exercisable into one Common Share.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_8A3_zE01D2VS8jrb" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

&lt;p id="xdx_85B_zKiIp3fwUGZ3" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</us-gaap:BasisOfAccounting>
    <us-gaap:BasisOfAccountingPolicyPolicyTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000664">&lt;p id="xdx_848_eus-gaap--BasisOfAccountingPolicyPolicyTextBlock_zqBdriykypCb" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;a)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_863_zCzZ4rG7QJQ9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Basis
    of Presentation and Consolidation&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
accompanying interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting
principles of the United States of America (&#x201c;U.S. GAAP&#x201d;) and the rules and regulations of the Securities and Exchange
Commission (&#x201c;SEC&#x201d;). The interim condensed consolidated financial statements include the consolidated accounts of the
Company and its wholly owned subsidiaries with all significant intercompany transactions eliminated. The accounting policies followed
in preparing these interim condensed consolidated financial statements are those used by the Company as set out in the audited
consolidated financial statements for the year ended June 30, 2024. Certain transactions include reference to Canadian dollars
(&#x201c;C$&#x201d;) where applicable.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
the opinion of management, all adjustments considered necessary (including normal recurring adjustments) for a fair statement
of the financial position, results of operations, and cash flows as of March 31, 2025, and for all periods presented, have been
included in these interim condensed consolidated financial statements. Certain information and footnote disclosures normally included
in the consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to appropriate
SEC rules and regulations. These interim condensed consolidated financial statements should be read in conjunction with the audited
consolidated financial statements for the year ended June 30, 2024. The interim results are not necessarily indicative of results
for the full year ending June 30, 2025, or future operating periods.&lt;/span&gt;&lt;/p&gt;

</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000666">&lt;p id="xdx_84B_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zYzGVE81EFQ1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;b)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_862_zRjSCAi4bsq9" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Recent
    Accounting Standards&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="text-decoration: underline"&gt;Issued
and Not Effective&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
November 2023, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued Accounting Standards Update (&#x201c;ASU&#x201d;)
2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU expand public
entities&#x2019; segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the
Chief Operating Decision Maker and included within each reported measure of segment profit or loss, an amount and description
of its composition for other segment items, and interim disclosures of a reportable segment&#x2019;s profit or loss and assets.
The ASU will be effective for our annual report for the period ending June 30, 2025, and for interim &lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;period reports beginning
thereafter. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;/p&gt;







&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which enhances the
transparency and decision usefulness of income tax disclosures primarily through changes to the rate reconciliation and income
taxes paid information. ASU 2023-09&#160;is effective for our annual report for the period ending June 30, 2027, and for interim
period reports beginning thereafter. Early adoption is permitted and the amendments should be applied prospectively; however,
retrospective application is permitted. We are currently evaluating the impact of this ASU on our consolidated financial statements
and related disclosures.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures
(Subtopic 220-40): Disaggregation of Income Statement Expenses. ASU 2024-03 requires the disclosure of additional information
related to certain costs and expenses, including amounts of inventory purchases, employee compensation, and depreciation and amortization
included in each income statement line item. This ASU also requires disclosure of the total amount of selling expenses and our
definition of selling expenses. This ASU is effective for our annual report for the period ending June 30, 2028, and for interim
period reports beginning thereafter on a prospective or retrospective basis. Early adoption is permitted. We are currently evaluating
the impact of adopting this ASU on our consolidated financial statements and disclosures.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;From
time to time, new accounting pronouncements are issued by the FASB that are adopted by the Company as of the specified effective
date. Unless otherwise discussed, management believes that the impact of recently issued standards did not or will not have a
material impact on the Company&#x2019;s consolidated financial statements upon adoption.&lt;/span&gt;&lt;/p&gt;

</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <us-gaap:UseOfEstimates contextRef="From2024-07-01to2025-03-31" id="Fact000671">&lt;p id="xdx_842_eus-gaap--UseOfEstimates_z71Bubq5JSH4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;c)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_861_zdYf8kkPbvTi" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Use
    of Estimates&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date
of the financial statements, and the reported amounts of expenses during the reporting period. The Company regularly evaluates
estimates and assumptions related to the carrying value of long-term assets, deferred income tax assets and related valuations,
liabilities related to the April 2024 Notes, Earnout Shares, Private Warrants, and November Private Warrants (each, as defined
below), and share-based compensation. The Company bases its estimates and assumptions on current facts, historical experience,
and various other factors that it believes to be reasonable under the circumstances, the results of which form the basis for making
judgments about the other sources. The actual results experienced by the Company may differ materially and adversely from the
Company&#x2019;s estimates. To the extent there are material differences between estimates and the actual results, future results
of operations will be affected.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company acquired a federal income tax payable of $&lt;span id="xdx_90C_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_pn3n3_c20240701__20250331_zOoYBcaMwT4k" title="Federal income tax payable"&gt;443&lt;/span&gt; in connection with the GXII Transaction (as defined below). As a result
of post-transaction losses at Elk Creek Resources Corp. (&#x201c;ECRC&#x201d;), a partial release of the valuation allowance attributed
to the reduction of the acquired federal income tax payable of $&lt;span id="xdx_900_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3n3_di_c20230701__20240331_zb6y6xzWZZv8" title="Income tax payable"&gt;101&lt;/span&gt; was recorded as an income tax benefit in the condensed consolidated
statement of operations and comprehensive loss for the nine months ended March 31, 2024. The Company maintains a full valuation
allowance against future income tax assets as it is more likely than not that all of the assets will not be realized.&lt;/span&gt;&lt;/p&gt;

</us-gaap:UseOfEstimates>
    <us-gaap:DeferredFederalIncomeTaxExpenseBenefit
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000673"
      unitRef="USD">443000</us-gaap:DeferredFederalIncomeTaxExpenseBenefit>
    <us-gaap:IncomeTaxExpenseBenefit
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000675"
      unitRef="USD">-101000</us-gaap:IncomeTaxExpenseBenefit>
    <us-gaap:EarningsPerSharePolicyTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000677">&lt;p id="xdx_84C_eus-gaap--EarningsPerSharePolicyTextBlock_zQn1wmE6i4qh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;d)&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_86C_zCDr6ddnVPu1" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Basic
    and Diluted Earnings per Share&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. &lt;span id="xdx_8B4_z3WPG2KSByGh"&gt;The following table sets forth the computation of the Company&#x2019;s basic and diluted net loss per share
attributable to common shareholders:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;









&lt;p style="font: 10pt Times New Roman,serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20250101__20250331_zzHGpfNRoFX9" style="width: 10%; text-align: right" title="Net loss"&gt;(5,375&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240101__20240331_zXjxAzdJTEA2" style="width: 10%; text-align: right" title="Net loss"&gt;(4,225&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240701__20250331_zeqjYhnBku5h" style="width: 10%; text-align: right" title="Net loss"&gt;(7,995&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20230701__20240331_zdARp9p1HME8" style="width: 10%; text-align: right" title="Net loss"&gt;(10,999&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Adjust:&#160;Net loss attributable to noncontrolling interest&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_z5qi0OPtkI7e" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(78&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20240101__20240331_zakDnliREFD1" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-169"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0694"&gt;(167&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zFQ3jLtwDnOg" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(177&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20230701__20240331_z6ALTSvJPoua" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-439"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0698"&gt;(520&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss available to participating securities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20250101__20250331_zxlswXtwv4n7" style="text-align: right" title="Net loss"&gt;(5,297&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240101__20240331_z63hjQRIXlg1" style="text-align: right" title="Net loss"&gt;(4,058&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240701__20250331_zKi4begln529" style="text-align: right" title="Net loss"&gt;(7,818&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20230701__20240331_zUYEWYCqnqK8" style="text-align: right" title="Net loss"&gt;(10,479&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributable to vested shares of ECRC Class B common stock&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_zBNZr5D3gTq6" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(41&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240101__20240331_zsd2vgu0d7U3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(184&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zsVBfensBPf3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(591&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20230701__20240331_z9R8I9QPPpNk" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(825&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributed to common shareholders - basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20250101__20250331_zM5GGDGdjbV1" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(5,256&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240101__20240331_zvJprVxEUZW5" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(3,874&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240701__20250331_zmEYmW2DOQFb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(7,227&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20230701__20240331_zCpaaozX6VH9" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(9,654&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;Denominator:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Weighted average shares outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20250101__20250331_zoqnfLGexiYf" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;45,893,738&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240101__20240331_zcFMb4OIUIcl" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;35,160,333&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240701__20250331_zc7hIX7eysqi" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;41,777,986&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20230701__20240331_z3EKvyG87Rnh" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;33,421,185&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Loss per Common Share outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20250101__20250331_z0cftbru2gql" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240101__20240331_z7XgFiuWkdy8" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240701__20250331_zXQyd8FW4PGb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.17&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20230701__20240331_zs6yfh3oSktd" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.29&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AE_zWHHH8IQ5bTf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following common shares, no par value, of the Company (&#x201c;Common Shares&#x201d;) underlying options to purchase Common Shares
(&#x201c;Options&#x201d;), Common Share purchase warrants (&#x201c;Warrants&#x201d;), and outstanding convertible debt were&#160;antidilutive&#160;due
to a net loss in the periods presented and, therefore, were excluded from the dilutive securities computation for the three-month
periods indicated below.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden"&gt;Schedule of excluded from the dilutive securities&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three and Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Excluded potentially dilutive securities (1)(2):&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 69%"&gt;Options&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20250101__20250331_fKDEpKDIp_zTbZO9bf6sR8" title="Options"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240701__20250331_fKDEpKDIp_zSxsEeychVnl" title="Options"&gt;3,073,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240101__20240331_fKDEpKDIp_zpWclUG25wpc" title="Options"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20230701__20240331_fKDEpKDIp_zrMR5OBccJVe" title="Options"&gt;2,563,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Warrants (3)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20250101__20250331_fKDEpKDIpKDMp_z22JdkKNzMk3" title="Warrants"&gt;&lt;span id="xdx_905_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240701__20250331_fKDEpKDIpKDMp_zz9K0xenxltl" title="Warrants"&gt;29,520,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240101__20240331_fKDEpKDIpKDMp_z8XxHhboTuWb" title="Warrants"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20230701__20240331_fKDEpKDIpKDMp_zYGKMBESP9X1" title="Warrants"&gt;18,585,105&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Convertible debt&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20250101__20250331_fKDEpKDIp_z2XTdRDcl3n7" title="Convertible debt"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20240701__20250331_fKDEpKDIp_zK2Gmh3MJOUk" title="Convertible debt"&gt;-&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20240101__20240331_fKDEpKDIp_zv7Xbg34Jju5" title="Convertible debt"&gt;&lt;span id="xdx_907_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20230701__20240331_fKDEpKDIp_z12t66xsDOYk" title="Convertible debt"&gt;714,900&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2pt"&gt;Total potential dilutive securities&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20250101__20250331_fKDEpKDIp_zQKTcSCTFNAg" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90C_eus-gaap--DilutiveSecurities_c20240701__20250331_fKDEpKDIp_zoG2Xk15ISOi" title="Total potential dilutive securities"&gt;32,593,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20240101__20240331_fKDEpKDIp_z6etRUOkCaB6" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90B_eus-gaap--DilutiveSecurities_c20230701__20240331_fKDEpKDIp_z5lR1TSUZJDd" title="Total potential dilutive securities"&gt;21,863,005&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="width: 0.5in"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span id="xdx_F00_zJjeOH4F0ZDc" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(1)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zaTaMNK2FtTl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
    calculations as required if the securities were dilutive.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F03_z05lwOc5tmkg" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(2)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F14_z5tyB0Ae0f7d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Earnout
    Shares are excluded as the vesting terms were not met as of the end of the reporting period.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F05_zvw5CLyJTGA2" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(3)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zYAiZ0oCpwsb" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Includes
    15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares. The remaining Warrants are each
    exercisable into one Common Share.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_8A3_zE01D2VS8jrb" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</us-gaap:EarningsPerSharePolicyTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000679">&lt;p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zQUbgP7XFhVg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company utilizes the weighted average method to determine the impact of changes in a participating security on the calculation
of loss per share. &lt;span id="xdx_8B4_z3WPG2KSByGh"&gt;The following table sets forth the computation of the Company&#x2019;s basic and diluted net loss per share
attributable to common shareholders:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;









&lt;p style="font: 10pt Times New Roman,serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: justify; text-indent: -0.125in; padding-left: 0.25in; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20250101__20250331_zzHGpfNRoFX9" style="width: 10%; text-align: right" title="Net loss"&gt;(5,375&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240101__20240331_zXjxAzdJTEA2" style="width: 10%; text-align: right" title="Net loss"&gt;(4,225&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20240701__20250331_zeqjYhnBku5h" style="width: 10%; text-align: right" title="Net loss"&gt;(7,995&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--NetIncomeLoss1_pn3n3_uUSD_c20230701__20240331_zdARp9p1HME8" style="width: 10%; text-align: right" title="Net loss"&gt;(10,999&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Adjust:&#160;Net loss attributable to noncontrolling interest&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_z5qi0OPtkI7e" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(78&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20240101__20240331_zakDnliREFD1" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-169"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0694"&gt;(167&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zFQ3jLtwDnOg" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(177&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_dxL_uUSD_c20230701__20240331_z6ALTSvJPoua" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss::XDX::-439"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0698"&gt;(520&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss available to participating securities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20250101__20250331_zxlswXtwv4n7" style="text-align: right" title="Net loss"&gt;(5,297&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240101__20240331_z63hjQRIXlg1" style="text-align: right" title="Net loss"&gt;(4,058&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20240701__20250331_zKi4begln529" style="text-align: right" title="Net loss"&gt;(7,818&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_pn3n3_uUSD_c20230701__20240331_zUYEWYCqnqK8" style="text-align: right" title="Net loss"&gt;(10,479&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributable to vested shares of ECRC Class B common stock&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20250101__20250331_zBNZr5D3gTq6" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(41&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240101__20240331_zsd2vgu0d7U3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(184&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20240701__20250331_zsVBfensBPf3" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(591&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_pn3n3_uUSD_c20230701__20240331_z9R8I9QPPpNk" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;(825&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Net loss attributed to common shareholders - basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20250101__20250331_zM5GGDGdjbV1" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(5,256&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240101__20240331_zvJprVxEUZW5" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(3,874&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20240701__20250331_zmEYmW2DOQFb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(7,227&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_pn3n3_uUSD_c20230701__20240331_zCpaaozX6VH9" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(9,654&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;Denominator:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Weighted average shares outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20250101__20250331_zoqnfLGexiYf" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;45,893,738&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240101__20240331_zcFMb4OIUIcl" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;35,160,333&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20240701__20250331_zc7hIX7eysqi" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;41,777,986&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted_pid_uShares_c20230701__20240331_z3EKvyG87Rnh" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss"&gt;33,421,185&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Loss per Common Share outstanding &#x2013; basic and diluted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20250101__20250331_z0cftbru2gql" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240101__20240331_z7XgFiuWkdy8" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.11&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20240701__20250331_zXQyd8FW4PGb" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.17&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_ecustom--EarningsLossPerShareBasicAndDiluted_pid_uUSDPShares_c20230701__20240331_zs6yfh3oSktd" style="border-bottom: Black 2pt solid; text-align: right" title="Net loss"&gt;(0.29&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <niobf:NetIncomeLoss1
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact000684"
      unitRef="USD">-5375000</niobf:NetIncomeLoss1>
    <niobf:NetIncomeLoss1
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000686"
      unitRef="USD">-4225000</niobf:NetIncomeLoss1>
    <niobf:NetIncomeLoss1
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000688"
      unitRef="USD">-7995000</niobf:NetIncomeLoss1>
    <niobf:NetIncomeLoss1
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000690"
      unitRef="USD">-10999000</niobf:NetIncomeLoss1>
    <us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact000692"
      unitRef="USD">-78000</us-gaap:NetIncomeLossAttributableToNoncontrollingInterest>
    <us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000696"
      unitRef="USD">-177000</us-gaap:NetIncomeLossAttributableToNoncontrollingInterest>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact000700"
      unitRef="USD">-5297000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000702"
      unitRef="USD">-4058000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000704"
      unitRef="USD">-7818000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
    <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000706"
      unitRef="USD">-10479000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact000708"
      unitRef="USD">-41000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000710"
      unitRef="USD">-184000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000712"
      unitRef="USD">-591000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000714"
      unitRef="USD">-825000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest>
    <us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact000716"
      unitRef="USD">-5256000</us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic>
    <us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000718"
      unitRef="USD">-3874000</us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic>
    <us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000720"
      unitRef="USD">-7227000</us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic>
    <us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000722"
      unitRef="USD">-9654000</us-gaap:NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic>
    <niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="From2025-01-012025-03-31"
      decimals="INF"
      id="Fact000724"
      unitRef="Shares">45893738</niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="From2024-01-012024-03-31"
      decimals="INF"
      id="Fact000726"
      unitRef="Shares">35160333</niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact000728"
      unitRef="Shares">41777986</niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted
      contextRef="From2023-07-012024-03-31"
      decimals="INF"
      id="Fact000730"
      unitRef="Shares">33421185</niobf:TotalWeightedAverageNumberOfShareOutstandingBasicAndDiluted>
    <niobf:EarningsLossPerShareBasicAndDiluted
      contextRef="From2025-01-012025-03-31"
      decimals="INF"
      id="Fact000732"
      unitRef="USDPShares">-0.11</niobf:EarningsLossPerShareBasicAndDiluted>
    <niobf:EarningsLossPerShareBasicAndDiluted
      contextRef="From2024-01-012024-03-31"
      decimals="INF"
      id="Fact000734"
      unitRef="USDPShares">-0.11</niobf:EarningsLossPerShareBasicAndDiluted>
    <niobf:EarningsLossPerShareBasicAndDiluted
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact000736"
      unitRef="USDPShares">-0.17</niobf:EarningsLossPerShareBasicAndDiluted>
    <niobf:EarningsLossPerShareBasicAndDiluted
      contextRef="From2023-07-012024-03-31"
      decimals="INF"
      id="Fact000738"
      unitRef="USDPShares">-0.29</niobf:EarningsLossPerShareBasicAndDiluted>
    <us-gaap:ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000740">&lt;p id="xdx_891_eus-gaap--ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock_zGNWZBJkam92" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8BD_zJ9ssOnPKcqd" style="display: none; visibility: hidden"&gt;Schedule of excluded from the dilutive securities&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three and Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Excluded potentially dilutive securities (1)(2):&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 69%"&gt;Options&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20250101__20250331_fKDEpKDIp_zTbZO9bf6sR8" title="Options"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240701__20250331_fKDEpKDIp_zSxsEeychVnl" title="Options"&gt;3,073,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20240101__20240331_fKDEpKDIp_zpWclUG25wpc" title="Options"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToWrittenPutOptions_pid_uShares_c20230701__20240331_fKDEpKDIp_zrMR5OBccJVe" title="Options"&gt;2,563,000&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Warrants (3)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20250101__20250331_fKDEpKDIpKDMp_z22JdkKNzMk3" title="Warrants"&gt;&lt;span id="xdx_905_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240701__20250331_fKDEpKDIpKDMp_zz9K0xenxltl" title="Warrants"&gt;29,520,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20240101__20240331_fKDEpKDIpKDMp_z8XxHhboTuWb" title="Warrants"&gt;&lt;span id="xdx_909_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_uShares_c20230701__20240331_fKDEpKDIpKDMp_zYGKMBESP9X1" title="Warrants"&gt;18,585,105&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Convertible debt&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20250101__20250331_fKDEpKDIp_z2XTdRDcl3n7" title="Convertible debt"&gt;&lt;span id="xdx_902_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_d0_uShares_c20240701__20250331_fKDEpKDIp_zK2Gmh3MJOUk" title="Convertible debt"&gt;-&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20240101__20240331_fKDEpKDIp_zv7Xbg34Jju5" title="Convertible debt"&gt;&lt;span id="xdx_907_eus-gaap--IncrementalCommonSharesAttributableToConversionOfDebtSecurities_pid_uShares_c20230701__20240331_fKDEpKDIp_z12t66xsDOYk" title="Convertible debt"&gt;714,900&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2pt"&gt;Total potential dilutive securities&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20250101__20250331_fKDEpKDIp_zQKTcSCTFNAg" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90C_eus-gaap--DilutiveSecurities_c20240701__20250331_fKDEpKDIp_zoG2Xk15ISOi" title="Total potential dilutive securities"&gt;32,593,695&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--DilutiveSecurities_c20240101__20240331_fKDEpKDIp_z6etRUOkCaB6" title="Total potential dilutive securities"&gt;&lt;span id="xdx_90B_eus-gaap--DilutiveSecurities_c20230701__20240331_fKDEpKDIp_z5lR1TSUZJDd" title="Total potential dilutive securities"&gt;21,863,005&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="width: 0.5in"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span id="xdx_F00_zJjeOH4F0ZDc" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(1)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zaTaMNK2FtTl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
    number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as
    of the period end. Such amounts have&#160;not&#160;been adjusted for the treasury stock method or weighted average outstanding
    calculations as required if the securities were dilutive.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F03_z05lwOc5tmkg" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(2)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F14_z5tyB0Ae0f7d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Earnout
    Shares are excluded as the vesting terms were not met as of the end of the reporting period.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F05_zvw5CLyJTGA2" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;(3)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span id="xdx_F1C_zYAiZ0oCpwsb" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Includes
    15,666,626 NioCorp Assumed Warrants that are each exercisable into 1.11829212 Common Shares. The remaining Warrants are each
    exercisable into one Common Share.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
</us-gaap:ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock>
    <us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions
      contextRef="From2025-01-012025-03-31"
      decimals="INF"
      id="Fact000742"
      unitRef="Shares">3073000</us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions>
    <us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact000744"
      unitRef="Shares">3073000</us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions>
    <us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions
      contextRef="From2024-01-012024-03-31"
      decimals="INF"
      id="Fact000746"
      unitRef="Shares">2563000</us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions>
    <us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions
      contextRef="From2023-07-012024-03-31"
      decimals="INF"
      id="Fact000748"
      unitRef="Shares">2563000</us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions>
    <us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants
      contextRef="From2025-01-012025-03-31"
      decimals="INF"
      id="Fact000750"
      unitRef="Shares">29520695</us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants>
    <us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact000752"
      unitRef="Shares">29520695</us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants>
    <us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants
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    <us-gaap:SubstantialDoubtAboutGoingConcernTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000777">&lt;p id="xdx_803_eus-gaap--SubstantialDoubtAboutGoingConcernTextBlock_zjlJUzONHnT" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;3.&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_82F_z0BgpKaJRpni" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;GOING
    CONCERN&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company incurred a loss of $&lt;span id="xdx_906_eus-gaap--NetIncomeLoss_iN_pn3n3_di_uUSD_c20240701__20250331_zeM39FfYDk9e" title="Net loss"&gt;7,818&lt;/span&gt;
for the nine months ended March 31, 2025 (nine months ended March 31, 2024 - $&lt;span id="xdx_901_eus-gaap--NetIncomeLoss_iN_pn3n3_di_c20230701__20240331_zoced8GJ0jM7" title="Net loss"&gt;10,560&lt;/span&gt;)
and had an accumulated deficit of $&lt;span id="xdx_901_eus-gaap--InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward_iI_pn3n3_uUSD_c20250331_zZyOKHoaFzL6" title="Capital deficit"&gt;169,730&lt;/span&gt;
as of March 31, 2025. As a development stage issuer, the Company has not yet commenced its mining operations and accordingly
does not generate any revenue. As of March 31, 2025, the Company had cash of $&lt;span id="xdx_902_eus-gaap--CashAndCashEquivalentsAtCarryingValue_iI_pn3n3_uUSD_c20250331_zTTu7lYW8mW8" title="Cash"&gt;1,294&lt;/span&gt;,
which will not be sufficient to fund normal operations for the next twelve months from the date these interim condensed consolidated financial statements are issued. These conditions and events raise
substantial doubt about the Company&#x2019;s ability to continue as a going concern.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
response to these conditions and events, the Company plans to obtain additional financing and while it has been successful in doing so in the past, there can be no assurance it will be able to do so in
the future. The Company&#x2019;s plans to obtain additional financing have not been finalized, are subject to market conditions,
and are not within &lt;/span&gt;&lt;/p&gt;









&lt;p style="font: 10pt Times New Roman,serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;the Company&#x2019;s control and therefore cannot be deemed probable. Further, the Company will be required
to raise additional funds for the construction and commencement of operations. As a result, the Company has concluded that management&#x2019;s
plans do not alleviate substantial doubt about the Company&#x2019;s ability to continue as a going concern.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;These
interim condensed consolidated financial statements do not include any adjustments related to the recoverability and classification
of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty.&lt;/span&gt;&lt;/p&gt;

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      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000781"
      unitRef="USD">-10560000</us-gaap:NetIncomeLoss>
    <us-gaap:InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward
      contextRef="AsOf2025-03-31"
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      id="Fact000783"
      unitRef="USD">169730000</us-gaap:InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
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      decimals="-3"
      id="Fact000785"
      unitRef="USD">1294000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:MineralIndustriesDisclosuresTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000790">&lt;p id="xdx_80E_eus-gaap--MineralIndustriesDisclosuresTextBlock_z2BLVfqkVd5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;4.&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_825_zpCptdxBMrgj" style="font: 10pt Times New Roman, Times, Serif; padding-left: 0.25in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;MINERAL
    PROPERTIES&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
the nine months ended March 31, 2025, the Company completed negotiations with landowners in Nebraska and entered into contract
amendments which extended the option periods by approximately five years for each option to purchase agreement (&#x201c;OTP&#x201d;)
covering six parcels of land for project construction and operation which the Company does not already own. The Company paid $196
upon closing of the OTP extensions and will make periodic payments totaling $206 over the extension period.&lt;/span&gt;&lt;/p&gt;

</us-gaap:MineralIndustriesDisclosuresTextBlock>
    <us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000792">&lt;p id="xdx_800_eus-gaap--AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_z6ybBLVHsnN" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;5.&lt;/span&gt;&lt;/td&gt;
    &lt;td id="xdx_82D_zNJ2oSpXasyh" style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;ACCOUNTS
    PAYABLE AND ACCRUED LIABILITIES&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_89B_eus-gaap--ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_zsEY7B6YYW95" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8B5_z319kU5jzPR3" style="display: none; visibility: hidden"&gt;Schedule of account payable and accrued liabilities:&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: right; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_493_20250331_zASufSodagC3" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_494_20240630_zo2gOfKTaqFc" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;As of&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;June 30, 2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_409_eus-gaap--AccountsPayableTradeCurrent_iI_pn3n3_uUSD_zlmwR5NJbxJl" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 74%; text-align: left"&gt;Accounts payable, trade&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;716&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,417&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--OtherAccruedLiabilitiesCurrent_iI_pn3n3_uUSD_zBuBuQNTi5g2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Trade payable accruals&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;260&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;350&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_402_eus-gaap--TaxesPayableCurrentAndNoncurrent_iI_pn3n3_uUSD_zaWzpyZE7rtc" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Environmental accruals&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;48&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;48&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_405_eus-gaap--AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_iI_pn3n3_uUSD_zFhBoRWlhgcl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Loan origination fees payable to related party&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0805"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;28&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--AccountsPayableAndAccruedLiabilitiesCurrent_iI_pn3n3_uUSD_z8Jj3Ls29hne" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2pt"&gt;Total accounts payable and accrued liabilities&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;1,024&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;1,843&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A4_zvHoz8ZR2oyc" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock>
    <us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000794">&lt;p id="xdx_89B_eus-gaap--ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_zsEY7B6YYW95" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8B5_z319kU5jzPR3" style="display: none; visibility: hidden"&gt;Schedule of account payable and accrued liabilities:&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: right; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_493_20250331_zASufSodagC3" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_494_20240630_zo2gOfKTaqFc" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;As of&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;June 30, 2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_409_eus-gaap--AccountsPayableTradeCurrent_iI_pn3n3_uUSD_zlmwR5NJbxJl" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 74%; text-align: left"&gt;Accounts payable, trade&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;716&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;1,417&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--OtherAccruedLiabilitiesCurrent_iI_pn3n3_uUSD_zBuBuQNTi5g2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Trade payable accruals&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;260&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;350&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_402_eus-gaap--TaxesPayableCurrentAndNoncurrent_iI_pn3n3_uUSD_zaWzpyZE7rtc" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Environmental accruals&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;48&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;48&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_405_eus-gaap--AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_iI_pn3n3_uUSD_zFhBoRWlhgcl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Loan origination fees payable to related party&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0805"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;28&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--AccountsPayableAndAccruedLiabilitiesCurrent_iI_pn3n3_uUSD_z8Jj3Ls29hne" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2pt"&gt;Total accounts payable and accrued liabilities&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;1,024&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;1,843&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock>
    <us-gaap:AccountsPayableTradeCurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact000796"
      unitRef="USD">716000</us-gaap:AccountsPayableTradeCurrent>
    <us-gaap:AccountsPayableTradeCurrent
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000797"
      unitRef="USD">1417000</us-gaap:AccountsPayableTradeCurrent>
    <us-gaap:OtherAccruedLiabilitiesCurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact000799"
      unitRef="USD">260000</us-gaap:OtherAccruedLiabilitiesCurrent>
    <us-gaap:OtherAccruedLiabilitiesCurrent
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000800"
      unitRef="USD">350000</us-gaap:OtherAccruedLiabilitiesCurrent>
    <us-gaap:TaxesPayableCurrentAndNoncurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact000802"
      unitRef="USD">48000</us-gaap:TaxesPayableCurrentAndNoncurrent>
    <us-gaap:TaxesPayableCurrentAndNoncurrent
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000803"
      unitRef="USD">48000</us-gaap:TaxesPayableCurrentAndNoncurrent>
    <us-gaap:AccountsPayableAndAccruedLiabilitiesFairValueDisclosure
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000806"
      unitRef="USD">28000</us-gaap:AccountsPayableAndAccruedLiabilitiesFairValueDisclosure>
    <us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact000808"
      unitRef="USD">1024000</us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent>
    <us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000809"
      unitRef="USD">1843000</us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent>
    <us-gaap:LongTermDebtTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000811">&lt;p id="xdx_800_eus-gaap--LongTermDebtTextBlock_z6UiuUQ30WZh" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;6.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_828_z0lj7FXI9fx1"&gt;DEBT&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;a)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Yorkville
    Convertible Debenture&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
July 19, 2024, the Company and Yorkville entered into a make-whole payment agreement under which Yorkville agreed to convert the
remaining outstanding principal and accrued interest of $&lt;span id="xdx_907_eus-gaap--DebtInstrumentIncreaseAccruedInterest_pn3n3_uUSD_c20240717__20240719__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zRdphevDQ3Jc" title="Principal and accrued interest"&gt;554&lt;/span&gt; under the unsecured convertible debentures (the &#x201c;Convertible
Debentures&#x201d;) issued to Yorkville pursuant to the Securities Purchase Agreement, dated January 26, 2023 (the &#x201c;Yorkville
Convertible Debt Financing Agreement&#x201d;), into Common Shares in exchange for a $&lt;span id="xdx_902_eus-gaap--DebtInstrumentIncreaseAccruedInterest_pn3n3_uUSD_c20240717__20240719__us-gaap--TypeOfArrangementAxis__custom--YorkvilleConvertibleDebtFinancingAgreementMember_zAOvt1LECC21" title="Principal and accrued interest"&gt;95&lt;/span&gt; make-whole payment. The Company recorded
a gain on extinguishment of $&lt;span id="xdx_908_eus-gaap--GainsLossesOnExtinguishmentOfDebt_pn3n3_uUSD_c20240701__20250331__us-gaap--TypeOfArrangementAxis__custom--YorkvilleConvertibleDebtFinancingAgreementMember_znqOXzsUrFf" title="Principal and accrued interest"&gt;19&lt;/span&gt; as part other gains in the condensed consolidated statements of operations and comprehensive loss.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_899_eus-gaap--ConvertibleDebtTableTextBlock_z6w9PyTh1kbb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BE_z7XzYVYxRX5a"&gt;The
change in the Convertible Debentures is presented below&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended &lt;br/&gt;
March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ConvertibleDebt_iS_pn3n3_uUSD_c20240701__20250331_zVzsvSAyVpmd" style="width: 15%; text-align: right" title="Balance at June 30, 2024"&gt;571&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in"&gt;Accretion expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--AccretionExpenseIncludingAssetRetirementObligations_pn3n3_uUSD_c20240701__20250331_zPZ2IN3KMk61" style="text-align: right" title="Accretion expense"&gt;43&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Principal and interest converted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--PrincipalAndAccruedInterestConverted_pn3n3_uUSD_c20240701__20250331_zGeIxt9PI1yj" style="border-bottom: Black 1pt solid; text-align: right" title="Accretion expense"&gt;(614&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ConvertibleDebt_iE_pn3n3_c20240701__20250331_zHkFikotfIgd" style="border-bottom: Black 2pt solid; text-align: right" title="Balance, December 31, 2024"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0827"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AB_z3E9DsarTXE4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;







&lt;p style="font: 10pt Times New Roman,serif; margin: 0pt 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89F_eus-gaap--ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_ztsuvhjVtZmk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B0_zYt3EFE3oUue"&gt;The
following table discloses the components of interest expense associated with the Convertible Debentures&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months Ended &lt;br/&gt;
March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months Ended &lt;br/&gt;
March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; padding-left: 0.25in"&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.25in"&gt;Contractual interest&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_ecustom--ContractualInterest_pn3n3_uUSD_c20250101__20250331_zzgHHb234O1i" style="width: 10%; text-align: right" title="Contractual interest"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0833"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_ecustom--ContractualInterest_pn3n3_uUSD_c20240101__20240331_zUVhBCf18Zal" style="width: 10%; text-align: right" title="Contractual interest"&gt;45&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--ContractualInterest_pn3n3_uUSD_c20240701__20250331_z0uyt4JXVILi" style="width: 10%; text-align: right" title="Contractual interest"&gt;1&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_ecustom--ContractualInterest_pn3n3_uUSD_c20230701__20240331_zAOPW5Ek63v7" style="width: 10%; text-align: right" title="Contractual interest"&gt;266&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in"&gt;Amortization of discount and issuance costs&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20250101__20250331_zS18wAdgHx8g" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0841"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240101__20240331_z6ViXviohUlb" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;971&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240701__20250331_z4KJz1bq4Ka4" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;42&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20230701__20240331_zDnGgXvTW9C5" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;4,001&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; padding-left: 0.25in"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AccretionExpense_pn3n3_uUSD_c20250101__20250331_zwVAKuZIas2i" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0849"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--AccretionExpense_pn3n3_uUSD_c20240101__20240331_zKhsHooK5k51" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;1,016&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--AccretionExpense_pn3n3_dxL_uUSD_c20240701__20250331_zpeoJVFRV8G9" style="border-bottom: Black 2pt solid; text-align: right" title="Total::XDX::43"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0853"&gt;43&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--AccretionExpense_pn3n3_uUSD_c20230701__20240331_zJh9qkOXWd1e" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;4,267&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A2_zXFsLpoPpwxj" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;b)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;April
    2024 Notes&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
April 12, 2024, the Company issued and sold to Yorkville and Lind Global Fund II LP (&#x201c;Lind II&#x201d;, and together with
Yorkville, the &#x201c;April 2024 Purchasers&#x201d;) $&lt;span id="xdx_900_eus-gaap--DebtInstrumentRepaidPrincipal_pn6n6_c20240410__20240412__us-gaap--LongtermDebtTypeAxis__us-gaap--UnsecuredDebtMember_zWZ96uDJ1LNd" title="Aggregate principal amount"&gt;8.0&lt;/span&gt; million aggregate principal amount of unsecured notes (the &#x201c;April
2024 Notes&#x201d;), pursuant to a securities purchase agreement, dated April 11, 2024 (the &#x201c;April 2024 Purchase Agreement&#x201d;),
between the Company and each of the April 2024 Purchasers. The Company also issued to the April 2024 Purchasers, in proportion
to the aggregate principal amount of April 2024 Notes issued to each April 2024 Purchaser, Warrants (the &#x201c;April 2024 Warrants&#x201d;)
to purchase up to &lt;span id="xdx_901_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240410__20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zzCYJJXWhqwh" title="Number of shares"&gt;615,385&lt;/span&gt; Common Shares, which are equal to &lt;span id="xdx_901_eus-gaap--InvestmentInterestRate_iI_pid_dp_uPure_c20240412__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementMember_zWHR3oVJuUC6" title="Number of shares"&gt;25&lt;/span&gt;% of the aggregate principal amount of April 2024 Notes issued to
the April 2024 Purchasers divided by the exercise price of $3.25, subject to any adjustment to give effect to any stock dividend,
stock split or recapitalization.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_897_eus-gaap--ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_znT8pIrL4lxj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B5_zNm5iYNaqKoe"&gt;The
changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;April 2024 Notes:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FairValueHedgeAssetsAtFairValue_iS_pn3n3_uUSD_c20240701__20250331_zf8QPA9juSu8" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;7,089&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in"&gt;Principal payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--DebtInstrumentPeriodicPayment_iN_pn3n3_di_uUSD_c20240701__20250331_zWFDZCj70qz5" style="text-align: right" title="Principal payments"&gt;(7,129&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--ChangeInFairValue_pn3n3_uUSD_c20240701__20250331_zldSClW4I4pe" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;40&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FairValueHedgeAssetsAtFairValue_iE_pn3n3_uUSD_c20240701__20250331_zyIzKAw3DEWd" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0871"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AD_zibvth5PIxxh" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89D_eus-gaap--ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_zbgwrANzj9Va" style="text-indent: 40pt; margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8BD_z6jYoWuBwGo8" style="display: none; visibility: hidden"&gt;Schedule of change in the April 2024 Warrant liability&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;April 2024 Warrant Liability:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--OtherLiabilitiesFairValueDisclosure_iS_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zsCH2arTUxMd" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;298&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FairValueAdjustmentOfWarrants_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zyeEZlSJ5WZ8" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;42&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iE_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZDMsiVhYY98" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;340&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A8_zouYU61WYF3j" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
September 4, 2024 and October 3, 2024, NioCorp entered into (i) consents and waivers (the &#x201c;2024 Yorkville
Consents&#x201d;) to the April 2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement and (ii)
consents and waivers (together with the 2024 Yorkville Consents, the &#x201c;2024 Note Consents&#x201d;) to the April 2024
Notes issued and sold to Lind II pursuant to the April 2024 Purchase Agreement. The 2024 Note Consents, among other things,
extended and deferred certain monthly payments and extended the maturity of the April 2024 Notes until January 31, 2025. On
January 3, 2025, the Company entered into a consent and waiver (the &#x201c;January Yorkville Consent&#x201d;) to the April
2024 Notes issued and sold to Yorkville pursuant to the April 2024 Purchase Agreement. The January Yorkville Consent, among
other things, deferred the due date for the amounts
that would otherwise have been due to Yorkville on January 1, 2025 to the maturity date and extended the maturity date to February
17, 2025, and prospectively waived any term of the April 2024 Notes that would otherwise be triggered upon a failure of the Company
to pay to Yorkville the remainder of the amount due on January 1, 2025.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;All
remaining amounts due to Lind II ($176) and Yorkville ($1,000) under the April 2024 Notes were repaid on January 6, 2025, and
February 7, 2025, respectively.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

</us-gaap:LongTermDebtTextBlock>
    <us-gaap:DebtInstrumentIncreaseAccruedInterest
      contextRef="From2024-07-172024-07-19_us-gaap_UnsecuredDebtMember"
      decimals="-3"
      id="Fact000813"
      unitRef="USD">554000</us-gaap:DebtInstrumentIncreaseAccruedInterest>
    <us-gaap:DebtInstrumentIncreaseAccruedInterest
      contextRef="From2024-07-172024-07-19_custom_YorkvilleConvertibleDebtFinancingAgreementMember"
      decimals="-3"
      id="Fact000815"
      unitRef="USD">95000</us-gaap:DebtInstrumentIncreaseAccruedInterest>
    <us-gaap:GainsLossesOnExtinguishmentOfDebt
      contextRef="From2024-07-012025-03-31_custom_YorkvilleConvertibleDebtFinancingAgreementMember"
      decimals="-3"
      id="Fact000817"
      unitRef="USD">19000</us-gaap:GainsLossesOnExtinguishmentOfDebt>
    <us-gaap:ConvertibleDebtTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000819">&lt;p id="xdx_899_eus-gaap--ConvertibleDebtTableTextBlock_z6w9PyTh1kbb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BE_z7XzYVYxRX5a"&gt;The
change in the Convertible Debentures is presented below&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended &lt;br/&gt;
March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ConvertibleDebt_iS_pn3n3_uUSD_c20240701__20250331_zVzsvSAyVpmd" style="width: 15%; text-align: right" title="Balance at June 30, 2024"&gt;571&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in"&gt;Accretion expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--AccretionExpenseIncludingAssetRetirementObligations_pn3n3_uUSD_c20240701__20250331_zPZ2IN3KMk61" style="text-align: right" title="Accretion expense"&gt;43&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Principal and interest converted&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--PrincipalAndAccruedInterestConverted_pn3n3_uUSD_c20240701__20250331_zGeIxt9PI1yj" style="border-bottom: Black 1pt solid; text-align: right" title="Accretion expense"&gt;(614&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ConvertibleDebt_iE_pn3n3_c20240701__20250331_zHkFikotfIgd" style="border-bottom: Black 2pt solid; text-align: right" title="Balance, December 31, 2024"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0827"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ConvertibleDebtTableTextBlock>
    <us-gaap:ConvertibleDebt
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000821"
      unitRef="USD">571000</us-gaap:ConvertibleDebt>
    <us-gaap:AccretionExpenseIncludingAssetRetirementObligations
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000823"
      unitRef="USD">43000</us-gaap:AccretionExpenseIncludingAssetRetirementObligations>
    <niobf:PrincipalAndAccruedInterestConverted
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000825"
      unitRef="USD">-614000</niobf:PrincipalAndAccruedInterestConverted>
    <us-gaap:ScheduleOfOtherNonoperatingExpenseByComponentTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000831">&lt;p id="xdx_89F_eus-gaap--ScheduleOfOtherNonoperatingExpenseByComponentTextBlock_ztsuvhjVtZmk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B0_zYt3EFE3oUue"&gt;The
following table discloses the components of interest expense associated with the Convertible Debentures&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%; margin-left: 0.5in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; padding-left: 0.25in"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months Ended &lt;br/&gt;
March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months Ended &lt;br/&gt;
March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; padding-left: 0.25in"&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.25in"&gt;Contractual interest&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_ecustom--ContractualInterest_pn3n3_uUSD_c20250101__20250331_zzgHHb234O1i" style="width: 10%; text-align: right" title="Contractual interest"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0833"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_ecustom--ContractualInterest_pn3n3_uUSD_c20240101__20240331_zUVhBCf18Zal" style="width: 10%; text-align: right" title="Contractual interest"&gt;45&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--ContractualInterest_pn3n3_uUSD_c20240701__20250331_z0uyt4JXVILi" style="width: 10%; text-align: right" title="Contractual interest"&gt;1&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_ecustom--ContractualInterest_pn3n3_uUSD_c20230701__20240331_zAOPW5Ek63v7" style="width: 10%; text-align: right" title="Contractual interest"&gt;266&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in"&gt;Amortization of discount and issuance costs&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20250101__20250331_zS18wAdgHx8g" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0841"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240101__20240331_z6ViXviohUlb" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;971&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20240701__20250331_z4KJz1bq4Ka4" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;42&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AmortizationOfFinancingCosts_pn3n3_uUSD_c20230701__20240331_zDnGgXvTW9C5" style="border-bottom: Black 1pt solid; text-align: right" title="Amortization of discount and issuance costs"&gt;4,001&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; padding-left: 0.25in"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AccretionExpense_pn3n3_uUSD_c20250101__20250331_zwVAKuZIas2i" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0849"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--AccretionExpense_pn3n3_uUSD_c20240101__20240331_zKhsHooK5k51" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;1,016&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--AccretionExpense_pn3n3_dxL_uUSD_c20240701__20250331_zpeoJVFRV8G9" style="border-bottom: Black 2pt solid; text-align: right" title="Total::XDX::43"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0853"&gt;43&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--AccretionExpense_pn3n3_uUSD_c20230701__20240331_zJh9qkOXWd1e" style="border-bottom: Black 2pt solid; text-align: right" title="Total"&gt;4,267&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ScheduleOfOtherNonoperatingExpenseByComponentTextBlock>
    <niobf:ContractualInterest
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000835"
      unitRef="USD">45000</niobf:ContractualInterest>
    <niobf:ContractualInterest
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000837"
      unitRef="USD">1000</niobf:ContractualInterest>
    <niobf:ContractualInterest
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000839"
      unitRef="USD">266000</niobf:ContractualInterest>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000843"
      unitRef="USD">971000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000845"
      unitRef="USD">42000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AmortizationOfFinancingCosts
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000847"
      unitRef="USD">4001000</us-gaap:AmortizationOfFinancingCosts>
    <us-gaap:AccretionExpense
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact000851"
      unitRef="USD">1016000</us-gaap:AccretionExpense>
    <us-gaap:AccretionExpense
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact000855"
      unitRef="USD">4267000</us-gaap:AccretionExpense>
    <us-gaap:DebtInstrumentRepaidPrincipal
      contextRef="From2024-04-102024-04-12_us-gaap_UnsecuredDebtMember"
      decimals="-6"
      id="Fact000857"
      unitRef="USD">8000000.0</us-gaap:DebtInstrumentRepaidPrincipal>
    <us-gaap:StockIssuedDuringPeriodSharesNewIssues
      contextRef="From2024-04-102024-04-12_custom_PurchaseAgreementMember"
      decimals="INF"
      id="Fact000859"
      unitRef="Shares">615385</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
    <us-gaap:InvestmentInterestRate
      contextRef="AsOf2024-04-12_custom_PurchaseAgreementMember"
      decimals="INF"
      id="Fact000861"
      unitRef="Pure">0.25</us-gaap:InvestmentInterestRate>
    <us-gaap:ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000863">&lt;p id="xdx_897_eus-gaap--ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock_znT8pIrL4lxj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B5_zNm5iYNaqKoe"&gt;The
changes in the April 2024 Notes and the April 2024 Warrant liability are presented below, respectively&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;April 2024 Notes:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FairValueHedgeAssetsAtFairValue_iS_pn3n3_uUSD_c20240701__20250331_zf8QPA9juSu8" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;7,089&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; text-indent: -0.125in; padding-left: 0.25in"&gt;Principal payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--DebtInstrumentPeriodicPayment_iN_pn3n3_di_uUSD_c20240701__20250331_zWFDZCj70qz5" style="text-align: right" title="Principal payments"&gt;(7,129&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--ChangeInFairValue_pn3n3_uUSD_c20240701__20250331_zldSClW4I4pe" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;40&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Balance as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FairValueHedgeAssetsAtFairValue_iE_pn3n3_uUSD_c20240701__20250331_zyIzKAw3DEWd" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0871"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ScheduleOfChangesInFairValueOfPlanAssetsTableTextBlock>
    <us-gaap:FairValueHedgeAssetsAtFairValue
      contextRef="AsOf2024-06-30"
      decimals="-3"
      id="Fact000865"
      unitRef="USD">7089000</us-gaap:FairValueHedgeAssetsAtFairValue>
    <us-gaap:DebtInstrumentPeriodicPayment
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000867"
      unitRef="USD">7129000</us-gaap:DebtInstrumentPeriodicPayment>
    <niobf:ChangeInFairValue
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000869"
      unitRef="USD">40000</niobf:ChangeInFairValue>
    <us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000873">&lt;p id="xdx_89D_eus-gaap--ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock_zbgwrANzj9Va" style="text-indent: 40pt; margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8BD_z6jYoWuBwGo8" style="display: none; visibility: hidden"&gt;Schedule of change in the April 2024 Warrant liability&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;April 2024 Warrant Liability:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--OtherLiabilitiesFairValueDisclosure_iS_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zsCH2arTUxMd" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;298&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FairValueAdjustmentOfWarrants_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zyeEZlSJ5WZ8" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;42&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iE_pn3n3_uUSD_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZDMsiVhYY98" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;340&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock>
    <us-gaap:OtherLiabilitiesFairValueDisclosure
      contextRef="AsOf2024-06-30_custom_EarnoutMember"
      decimals="-3"
      id="Fact000875"
      unitRef="USD">298000</us-gaap:OtherLiabilitiesFairValueDisclosure>
    <us-gaap:FairValueAdjustmentOfWarrants
      contextRef="From2024-07-012025-03-31_custom_EarnoutMember"
      decimals="-3"
      id="Fact000877"
      unitRef="USD">42000</us-gaap:FairValueAdjustmentOfWarrants>
    <us-gaap:OtherLiabilitiesFairValueDisclosure
      contextRef="AsOf2025-03-31_custom_EarnoutMember"
      decimals="-3"
      id="Fact000879"
      unitRef="USD">340000</us-gaap:OtherLiabilitiesFairValueDisclosure>
    <niobf:ScheduleOfClassBCommonStockOfECRCTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000881">&lt;p id="xdx_800_ecustom--ScheduleOfClassBCommonStockOfECRCTextBlock_zqwVt2mLWRf4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;7.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_828_ziW6jIGTKPl2"&gt;CLASS
    B COMMON STOCK OF ECRC&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
shares of Class B common stock of ECRC, an indirect, majority-owned subsidiary of NioCorp formerly known as GX Acquisition Corp.
II (&#x201c;GXII&#x201d;), include rights under which the holders may exchange such shares into Common Shares. Certain of such shares
were vested as of the Closing (as defined below) and are exchangeable at any time, from time to time, until the tenth anniversary
of the Closing Date (as defined below) (the &#x201c;Vested Shares&#x201d;) and certain of such shares are subject to certain vesting
conditions (the &#x201c;Earnout Shares&#x201d;).&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;Earnout
Shares&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_890_ecustom--ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_zgJJ5Nnde2Pk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BC_z4gNwmGe0o78"&gt;The
Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;March 31, &lt;br/&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;June 30, &lt;br/&gt;2024&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 33%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_989_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250531__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zW7oNfbvoMB" style="width: 12%; text-align: center" title="Closing common share price"&gt;$1.97&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zBOa88lv04Dk" style="width: 12%; text-align: center" title="Closing common share price"&gt;$1.73&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Term (expiry)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_906_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z7TXtWEBmSS" title="Term (expiry)"&gt;March 17, 2033&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_90E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_znu6OAxdpjnf" title="Term (expiry)"&gt;March 17, 2033&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Implied volatility of Public Warrants&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z3YQzsdRJoY" style="text-align: center" title="Implied volatility of public warrants"&gt;66.0%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zblp4qS8ZDAb" style="text-align: center" title="Implied volatility of public warrants"&gt;65.0%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zaSqn38L3mjc" style="text-align: center" title="Risk-free rate"&gt;4.13%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zNRqOxhsC6sa" style="text-align: center" title="Risk-free rate"&gt;4.35%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AC_zdzPlrlejPib" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_895_ecustom--ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_zTwPDsKCUG51" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B7_z5bAAahTvpJ8"&gt;The
following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period
ended March 31, 2025&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 70%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 52%; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ServicingLiabilityAtFairValueAmount_iS_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z8wXaXijv4Ti" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;3,817&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ServicingLiabilityAtFairValueAdditions_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zEIYHzjr7jT2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;510&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ServicingLiabilityAtFairValueAmount_iE_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZ9KIE2jLI7l" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;4,327&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A4_zdtxkDm9rdvj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;Vested
Shares&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
December 12, 2024, and December 20, 2024, &lt;span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241212_zR3Hq2yoZZa9"&gt;25,000&lt;/span&gt; Vested Shares and &lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_iI_pid_uShares_c20241220_zlJ2nyXACeeh"&gt;323,085&lt;/span&gt; Vested Shares, respectively, were exchanged for an
equivalent number of Common Shares. This exchange resulted in a change in the Company&#x2019;s ownership interest in ECRC and was
accounted for as an equity transaction in accordance with Accounting Standards Codification (&#x201c;ASC&#x201d;) 810-10-45-23,
with no gain or loss recognized. Accordingly, the carrying amount of the noncontrolling interest was adjusted to reflect the change
in the Company&#x2019;s ownership interest with a corresponding offset booked to equity. As of March 31, 2025, &lt;span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_pid_dxL_uShares_c20250331_zd0WBXzaDsFd" title="::XDX::3073000"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0910"&gt;3,934,031&lt;/span&gt;&lt;/span&gt; Vested
Shares remained outstanding.&lt;/span&gt;&lt;/p&gt;

</niobf:ScheduleOfClassBCommonStockOfECRCTextBlock>
    <niobf:ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000883">&lt;p id="xdx_890_ecustom--ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock_zgJJ5Nnde2Pk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BC_z4gNwmGe0o78"&gt;The
Earnout Shares were valued utilizing a Monte Carlo Simulation pricing model with the following primary inputs&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;March 31, &lt;br/&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;June 30, &lt;br/&gt;2024&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 33%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_989_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250531__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zW7oNfbvoMB" style="width: 12%; text-align: center" title="Closing common share price"&gt;$1.97&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zBOa88lv04Dk" style="width: 12%; text-align: center" title="Closing common share price"&gt;$1.73&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Term (expiry)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_906_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z7TXtWEBmSS" title="Term (expiry)"&gt;March 17, 2033&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_90E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_znu6OAxdpjnf" title="Term (expiry)"&gt;March 17, 2033&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Implied volatility of Public Warrants&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z3YQzsdRJoY" style="text-align: center" title="Implied volatility of public warrants"&gt;66.0%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zblp4qS8ZDAb" style="text-align: center" title="Implied volatility of public warrants"&gt;65.0%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20240701__20250331__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zaSqn38L3mjc" style="text-align: center" title="Risk-free rate"&gt;4.13%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20230701__20240630__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__us-gaap--ValuationTechniqueOptionPricingModelMember__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zNRqOxhsC6sa" style="text-align: center" title="Risk-free rate"&gt;4.35%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfPrimaryInputsIntoTheMonteCarloModelsTableTextBlock>
    <us-gaap:SharePrice
      contextRef="AsOf2025-05-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000885"
      unitRef="USDPShares">1.97</us-gaap:SharePrice>
    <us-gaap:SharePrice
      contextRef="AsOf2024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000887"
      unitRef="USDPShares">1.73</us-gaap:SharePrice>
    <niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2
      contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      id="Fact000889">2033-03-17</niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2>
    <niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2
      contextRef="From2023-07-012024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      id="Fact000891">2033-03-17</niobf:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000893"
      unitRef="Pure">0.660</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2023-07-012024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000895"
      unitRef="Pure">0.650</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
      contextRef="From2024-07-012025-03-31_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000897"
      unitRef="Pure">0.0413</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
      contextRef="From2023-07-012024-06-30_us-gaap_MeasurementInputExercisePriceMember_us-gaap_ValuationTechniqueOptionPricingModelMember_custom_EarnoutMember"
      decimals="INF"
      id="Fact000899"
      unitRef="Pure">0.0435</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>
    <niobf:ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000901">&lt;p id="xdx_895_ecustom--ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock_zTwPDsKCUG51" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B7_z5bAAahTvpJ8"&gt;The
following table sets forth a summary of the changes in the fair value of the Earnout Shares liability for the nine-month period
ended March 31, 2025&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 70%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify; text-indent: -0.125in; padding-left: 0.125in"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 52%; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ServicingLiabilityAtFairValueAmount_iS_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_z8wXaXijv4Ti" style="width: 15%; text-align: right" title="Fair value at June 30, 2024"&gt;3,817&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: -0.125in; padding-left: 0.25in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ServicingLiabilityAtFairValueAdditions_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zEIYHzjr7jT2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;510&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2pt; text-indent: -0.125in; padding-left: 0.125in"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 2pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ServicingLiabilityAtFairValueAmount_iE_pn3n3_c20240701__20250331__us-gaap--FinancialInstrumentAxis__custom--EarnoutMember_zZ9KIE2jLI7l" style="border-bottom: Black 2pt solid; text-align: right" title="Fair value at December 31, 2024"&gt;4,327&lt;/td&gt;&lt;td style="padding-bottom: 2pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfsummaryOfTheChangesInTheFairValueOfTheEarnoutShareLiabilityTableTextBlock>
    <us-gaap:ServicingLiabilityAtFairValueAmount
      contextRef="AsOf2024-06-30_custom_EarnoutMember"
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    <us-gaap:ServicingLiabilityAtFairValueAdditions
      contextRef="From2024-07-012025-03-31_custom_EarnoutMember"
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      unitRef="Shares">25000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber>
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    <us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000912">&lt;p id="xdx_808_eus-gaap--ShareholdersEquityAndShareBasedPaymentsTextBlock_zyuKQJalIpb2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;8.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_826_zsAgfYTYq5Z7"&gt;COMMON
    SHARES&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; padding-right: 0.7pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;a)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; padding-right: 0.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Issuance&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241105_gIFCOWORRFITN-VYYGH_zdLXqooIcu0l"&gt;On
November 5, 2024, the Company closed an underwritten public offering (the &#x201c;November 2024 Registered Offering&#x201d;), pursuant
to the underwriting agreement, dated November 3, 2024 (the &#x201c;Underwriting Agreement&#x201d;), with Maxim Group LLC, as underwriter
(&#x201c;Maxim&#x201d;), which consisted of 1,592,356 Common Shares, 1,672,090 Warrants (the &#x201c;Series A Public Warrants&#x201d;)
to purchase up to an additional 1,672,090 Common Shares and 836,045 Warrants (the &#x201c;Series B Public Warrants&#x201d; and,
together with the Series A Public Warrants, the &#x201c;November Public Warrants&#x201d;) to purchase up to an additional 836,045
Common Shares. Each Common Share was sold together with one Series A Public Warrant and one-half of one Series B Public Warrant
at a combined public offering price of $1.57. The gross proceeds from the November 2024 Registered Offering were $2,501&lt;/span&gt; &lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;











&lt;div id="xdx_C05_gIFCOWORRFITN-VYYGH_z1ZLivWGmGJh"&gt;&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;before
deducting underwriting discounts and offering expenses. The November Public Warrants were classified as equity instruments and
accordingly, the net proceeds were allocated based on the relative fair values of the Common Shares and the November Public Warrants
on the date of issuance, with $943 allocated to the fair value of the November Public Warrants and the balance of the proceeds
of $1,558 allocated to Common Shares. The Company incurred total transaction costs related to the November 2024 Registered Offering
$1,226, which were treated as share issuance costs at closing. The Series A Public Warrants have an exercise price of $1.75 per
underlying Common Share, are exercisable immediately, and will expire on November 5, 2026. The Series B Public Warrants have an
exercise price of $2.07 per underlying Common Share, are exercisable beginning six months and one day from the date of issuance
and will expire on November 5, 2029. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day over-allotment
option to purchase (i) 238,853 additional Common Shares and (ii) 358,280 Option Warrants (as defined below) to purchase up to
an aggregate of 358,280 Common Shares. &#x201c;Option Warrant&#x201d; means one Series A Public Warrant combined with one-half of
one Series B Public Warrant. On November 4, 2024, Maxim partially exercised its over-allotment option to purchase &lt;span id="xdx_906_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesAMember_zDH8iJERs2s7"&gt;79,734&lt;/span&gt; additional
Series A Public Warrants and &lt;span id="xdx_908_ecustom--DebtInstrumentIssuedPrincipalshars_c20241101__20241104__us-gaap--TypeOfArrangementAxis__custom--PurchaseAgreementSeriesBMember_zync8a8qmZx5"&gt;39,867&lt;/span&gt; additional Series B Public Warrants, which amounts are included in the amounts discussed above
and were issued at closing of the November 2024 Registered Offering.&lt;/span&gt;&lt;/p&gt;&lt;/div&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_909_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20241101__20241113_zfxNEMy8TMDa"&gt;On
November 13, 2024, the Company closed a non-brokered private placement (the &#x201c;November 2024 Private Offering&#x201d;), pursuant
to binding subscription agreements with certain accredited investors as part of a non-brokered private placement of &lt;span id="xdx_90B_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pid_uShares_c20241101__20241113__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember_zJ2BkoLQdARb" title="Shares issue"&gt;2,199,602&lt;/span&gt;
units of the Company (the &#x201c;November 2024 Units&#x201d;). Each November 2024 Unit consisted of one Common Share, one Warrant
(a &#x201c;Series A Private Warrant&#x201d;) to purchase one Common Share, and one-half of one Warrant (each whole such Warrant,
a &#x201c;Series B Private Warrant&#x201d; and, together with the Series A Private Warrants, the &#x201c;November Private Warrants&#x201d;),
with each Series B Private Warrant entitling the holder thereof to purchase one additional Common Share. Each November 2024 Unit
was issued and sold at a price of $1.57. The gross proceeds of the November 2024 Private Offering were approximately $3,500 before
deducting offering expenses. Certain directors and officers of the Company (the &#x201c;Insider Investors&#x201d;) purchased November
2024 Units at a price of $1.7675 per November 2024 Unit, which price includes $0.1975 per November 2024 Private Warrant and allowed
such directors and officers to participate in the November 2024 Private Offering in accordance with the rules of the Nasdaq Stock
Market LLC (the &#x201c;Nasdaq&#x201d;). The Series A Private Warrants have an exercise price of $1.75 per underlying Common Share,
are exercisable immediately, and will expire on November 13, 2026. The Series B Private Warrants have an exercise price of $2.07
per underlying Common Share, are exercisable beginning six months and one day from the date of issuance and will expire on November
13, 2029. The Company recorded a non-cash expense of $34 and $110 to other operating expenses and employee related costs, respectively,
representing the excess of fair value of the November 2024 Units over the purchase price paid by Insider Investors.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Based
upon the Company&#x2019;s analysis of the criteria contained in ASC 815, the Company determined that the November Private Warrants
met the definition of a derivative liability, as any warrant exercise that could cause the holder to exceed 19.9% ownership of
NioCorp Common Shares would require shareholder approval. As such, the November Private Warrants were recognized as warrant liabilities
on the consolidated balance sheet and were measured at their issuance date fair value of $&lt;span id="xdx_907_eus-gaap--FairValueOptionChangesInFairValueGainLoss1_pn3n3_c20240701__20250331_z6ysFpM9ikX8" title="Fair value of non operating gain/loss"&gt;1,928&lt;/span&gt; and subsequently remeasured at
each reporting period with changes being recorded as a non-operating gain or loss in the consolidated statement of operations
and comprehensive loss. The remaining proceeds of the November 2024 Private Offering of $&lt;span id="xdx_904_eus-gaap--StockIssuedDuringPeriodValueOther_pn3n3_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zwDmXcBo8Dsj" title="Remaining proceeds from private warrants"&gt;1,573&lt;/span&gt; were allocated to Common Shares.
The Company incurred total transaction costs related to the November 2024 Private Offering of $&lt;span id="xdx_909_ecustom--RegisteredOffering_iI_pn3n3_c20241130_znsjwmQOpDc6" title="Registered Offering"&gt;161&lt;/span&gt;, of which $&lt;span id="xdx_90E_ecustom--PrivateOffering_iI_pn3n3_c20241130_zYadWwAZKCqa" title="Private Offering"&gt;60&lt;/span&gt; was allocated
to the November Private Warrants and was expensed at closing.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 18.7pt; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;The
following tables disclose the primary inputs for the Black-Scholes model used in valuing the November Public Warrants and November
Private Warrants, respectively.&lt;/span&gt;&lt;/p&gt;










&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;p id="xdx_890_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_zGtP4U5B8ha6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B1_zBWKQ5BXEkZ9" style="display: none; visibility: hidden"&gt;Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"&gt;November 5, 2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;November Public Warrants:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series A Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series B Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 34%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zQGqmf6iL6Hc" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.455&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zPaVpDMkH5a4" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.455&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUrGInHMI6Ag" title="Term (years)"&gt;4.5&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z9alwOAUrval" title="Term (years)"&gt;2.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zN5vluBwd4A" title="Historic equity volatility"&gt;67.43&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z5IzFhBG33t6" title="Historic equity volatility"&gt;67.13&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zJoLmlKStXn3" title="Risk-free rate"&gt;4.14&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zgPJD8e9wCc2" title="Risk-free rate"&gt;4.20&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td colspan="5" style="text-align: center"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td colspan="5" style="border-bottom: Black 1pt solid; text-align: center"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;March
    31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;November Private Warrants:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Series A Private Warrants&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Series B Private Warrants&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 26%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: right"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: right"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zPlsX8iXnBY" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_z1K1iDQHBWlg" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_90A_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zeYwXGZXTZtk" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0961"&gt;1.62&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zGD3gz22wmI9" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0963"&gt;4.5&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_ziiCOViTtbn9" title="Historic equity volatility"&gt;80.09&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zYDzzOSa1C91" title="Historic equity volatility"&gt;71.22&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zJ262g57EJ1b" title="Risk-free rate"&gt;3.96&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zY38WuWDMsz2" title="Risk-free rate"&gt;3.94&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A0_zg9ag51nXsfb" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_895_ecustom--ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_z4uzzhxwxmb1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B6_zpz79LdOELRc"&gt;The
following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;November Private Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 42%; text-align: justify"&gt;Fair value at issuance (November 13, 2024)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_z7Uww5h43M27" style="width: 15%; text-align: right" title="Beginning balance"&gt;1,929&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zLVJ4FdTSkyh" style="border-bottom: Black 1pt solid; text-align: right" title="Beginning balance"&gt;1,258&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zr8K1NdvbYAe" style="border-bottom: Black 2pt solid; text-align: right" title="Beginning balance"&gt;3,187&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AB_zRP2ru6sYucc" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_906_ecustom--CommonShareDescription_c20250101__20250131_zKFKE2kNFtz9" title="Subsequent event, description"&gt;On
January 31, 2025, the Company closed an underwritten registered direct offering (the &#x201c;January 2025 Offering&#x201d;), pursuant
to an underwriting agreement, dated January 29, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold
2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to 2,577,320 Common Shares (the &#x201c;January 2025 Series
A Warrants&#x201d;) and 1,288,660 Series B warrants to purchase up to an additional 1,288,660 Common Shares (the &#x201c;January
2025 Series B Warrants&#x201d; and, together with the January 2025 Series A Warrants, the &#x201c;January 2025 Warrants&#x201d;).
Each Common Share was sold together with one January 2025 Series A Warrant and one-half of one January 2025 Series B Warrant at
a combined public offering price of $1.94. The gross proceeds from the January 2025 Offering were approximately $5,000 before
deducting underwriting discounts and offering expenses. The January 2025 Warrants were classified as equity instruments and accordingly,
the net proceeds were allocated based on the relative fair values of the Common Shares and the January 2025 Warrants on the date
of issuance, with $2,200 allocated to the fair value of the January 2025 Warrants and the balance of the proceeds of $2,800 allocated
to Common Shares. The Company incurred total transaction costs related to the January 2025 Offering of $799, which were treated
as share issuance costs at closing. The January 2025 Series A Warrants have an exercise price of $1.98 per underlying Common Share,
are exercisable immediately, and will expire on August 2, 2027. The January 2025 Series B Warrants have an exercise price of $2.05
per underlying Common Share, are exercisable immediately, and will expire on January 31, 2029&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_897_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_zOPFjWNTFfx5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_8BC_zEpnDNRlsPo5"&gt;The
following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series A Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series B Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 34%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUK7ziTDjjDh" style="width: 10%; text-align: right" title="Closing common share price"&gt;2.25&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zrN5Qt4p0dab" style="width: 10%; text-align: right" title="Closing common share price"&gt;2.25&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUb1QydvvX2d" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0989"&gt;2.5&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zmqiwcCaHNI6" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0991"&gt;4.0&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zRnk9AZlDUq2" title="Historic equity volatility"&gt;73.18&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zKo75ks1eYp4" title="Historic equity volatility"&gt;73.36&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zYL97Ypuj8Yb" title="Risk-free rate"&gt;4.23&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z4UKwilL8PJ9" title="Risk-free rate"&gt;4.31&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_8A0_z3qtLlHDdbdg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"&gt;&lt;/div&gt;








&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;As
of March 31, 2025, the Company has access to up to $56,157 in net proceeds from the Standby Equity Purchase Agreement, dated January
26, 2023 (the &#x201c;Yorkville Equity Facility Financing Agreement&#x201d;), between the Company and YA II PN, Ltd., an investment
fund managed by Yorkville Advisors Global, LP (&#x201c;Yorkville&#x201d;), through April 1, 2026. &lt;span id="xdx_8BA_z6hPXRJJPN99"&gt;The Company issued the following
Common Shares under the Yorkville Equity Facility Financing Agreement during the three and nine month periods presented below&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_894_ecustom--ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_zvI9NWNFkM5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B3_zSklU7RVUor9" style="display: none; visibility: hidden"&gt;The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For The Three Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For The Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: justify"&gt;Common Shares issued&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--CommonStockSharesIssued1_pid_uShares_c20250101__20250331_zrOD8Dq57C8l" style="width: 10%; text-align: right" title="Common shares issued"&gt;709,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--CommonStockSharesIssued1_pid_uShares_c20240101__20240331_z7jh3g1h800i" style="width: 10%; text-align: right" title="Common shares issued"&gt;242,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_ecustom--CommonStockSharesIssued1_pid_uShares_c20240701__20250331_zYq2OiXmbHgg" style="width: 10%; text-align: right" title="Common shares issued"&gt;1,919,250&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_ecustom--CommonStockSharesIssued1_pid_uShares_c20230701__20240331_zveGHwfNQHS5" style="width: 10%; text-align: right" title="Common shares issued"&gt;462,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Gross funds received&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20250101__20250331_z0D0vkRXvHcc" style="text-align: right" title="Gross funds received"&gt;1,286&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240101__20240331_ztdZHkLeFdEc" style="text-align: right" title="Gross funds received"&gt;607&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240701__20250331_znZQStku6bth" style="text-align: right" title="Gross funds received"&gt;3,111&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20230701__20240331_zejVnhcf1Ni3" style="text-align: right" title="Gross funds received"&gt;1,373&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Market value of Common Shares Issued &lt;br/&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--StockIssued1_c20250101__20250331_zQmRtplEnIn7" style="text-align: right" title="Market Value of Shares Issued"&gt;1,328&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--StockIssued1_c20240101__20240331_zyW8adFDxu29" style="text-align: right" title="Market Value of Shares Issued"&gt;622&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--StockIssued1_c20240701__20250331_zAUsQIDLSPx1" style="text-align: right" title="Market Value of Shares Issued"&gt;3,191&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--StockIssued1_c20230701__20240331_ztUs3rcYqoye" style="text-align: right" title="Market Value of Shares Issued"&gt;1,451&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Loss on issuance&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20250101__20250331_zR5OagxFirVk" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;42&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240101__20240331_zg4j1FyMYBJa" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;15&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240701__20250331_zg3xNy9XE5qj" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;80&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20230701__20240331_zcQh8CoD3Wt3" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A5_zvV3k0lN4yL2" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Loss
on issuance represents a non-cash amount equal to the difference between the proceeds received and the fair value of the Common
Shares issued based on the Nasdaq closing price per Common Share on the issuance date and is recorded in other operating expenses
in the condensed consolidated statement of operations and comprehensive loss.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;b)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Stock
    Options&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_89F_ecustom--ScheduleOfStockOptionRollForwardTableTextBlock_zErRuunJX81b" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8BF_zjCXsQ7AAX0h" style="display: none; visibility: hidden"&gt;Schedule Of Stock Option&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Number of Options&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Weighted Average&#160; &lt;br/&gt;Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Aggregate&#160; &lt;br/&gt;Intrinsic Value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Weighted&#160; &lt;br/&gt;Average Remaining Life&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 43%; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, June 30, 2024&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20240701__20250331_zr59IiOcCo85" style="width: 10%; text-align: right" title="Beginning balance (in shares)"&gt;2,495,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_uUSDPShares_c20240701__20250331_zMraJqbfl0p8" style="width: 10%; text-align: right" title="Beginning balance"&gt;4.78&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Granted&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_uShares_c20240701__20250331_zLV3UpqUsUZ7" style="text-align: right" title="Granted (in shares)"&gt;945,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zpdGpISfMN9b" style="text-align: right" title="Granted"&gt;1.41&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Exercised&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20240701__20250331_zdomRMgujoMc" style="text-align: right" title="Exercised (in shares)"&gt;(5,000&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zu4wEmbLstX3" style="text-align: right" title="Exercised"&gt;1.40&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Cancelled/expired&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pid_di_uShares_c20240701__20250331_zJfzzDIsW9Bj" style="border-bottom: Black 1pt solid; text-align: right" title="Cancelled/expired (in shares)"&gt;(362,500&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zePQVoED83E3" style="border-bottom: Black 1pt solid; text-align: right" title="Cancelled/expired"&gt;9.25&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20240701__20250331_z06SEuMrI2jd" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance (in shares)"&gt;3,073,000&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_uUSDPShares_c20240701__20250331_zhkiFsVxUxA7" style="border-bottom: Black 2pt solid; padding-bottom: 1pt; text-align: right" title="Ending balance"&gt;3.17&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_c20250331_z9DADAx3v6Vl" style="border-bottom: Black 2pt solid; text-align: right" title="Aggregate intrinsic value"&gt;530&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20240701__20250331_zdJib6ZBglf9" title="Weighted average remaining contractual life"&gt;3.6&lt;/span&gt; Years&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A2_zxyE3d258on9" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
December 23, 2024, the Company granted &lt;span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_uShares_c20241222__20241223__us-gaap--DerivativeInstrumentRiskAxis__us-gaap--StockOptionMember_zLOY0MBPMbEe"&gt;935,000&lt;/span&gt; Options with a fair value price of $&lt;span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_pid_uUSDPShares_c20241222__20241223__us-gaap--DerivativeInstrumentRiskAxis__us-gaap--StockOptionMember_zME1eVlZ4bci"&gt;0.84&lt;/span&gt; per Option, based on a Black-Scholes model
with a risk-free rate of &lt;span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20241222__20241223__us-gaap--DerivativeInstrumentRiskAxis__us-gaap--StockOptionMember_zDlm52QewU3g"&gt;4.44&lt;/span&gt;%, average share price volatility of &lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20241222__20241223__us-gaap--DerivativeInstrumentRiskAxis__us-gaap--StockOptionMember_zulmRlNP4Dy6"&gt;67.2&lt;/span&gt;%, and a five-year expected option life. These Options were
fully vested on the issuance date and the Company expensed $&lt;span id="xdx_90D_eus-gaap--OtherExpenses_pn3n3_c20241222__20241223__us-gaap--DerivativeInstrumentRiskAxis__us-gaap--StockOptionMember_zKdVtH7okOj2"&gt;781&lt;/span&gt; in the condensed consolidated statement of operations associated
with the Option grants.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
February 24, 2025, the Company granted 10,000 Options with a fair value price of $1.13 per Option, based on a Black-Scholes model
with a risk-free rate of 4.28%, average share price volatility of 73.3%, and a three-year expected option life. These Options
were 50% vested on the issuance date with the remaining portion vesting over one year. The Company expensed $6 in the condensed
consolidated statement of operations associated with the grant and the remaining balance will be amortized over the vesting period.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;c)&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Warrants&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_892_eus-gaap--ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_z3V9Yudh1Fk3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif; display: none; visibility: hidden"&gt;&lt;span id="xdx_8B5_z9tGUNRTnXs7"&gt;Schedule of warrant transactions&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Number of Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Weighted Average Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 73%; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, June 30, 2024&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightOutstanding_iS_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zknXkem9h744" style="width: 10%; text-align: right" title="Beginning balance"&gt;18,563,561&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iS_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zW5wmK58hCb9" style="width: 10%; text-align: right" title="Beginning balance"&gt;10.53&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Granted&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--ClassOfWarrantOrRightGranted_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zs8SuILVanx1" style="text-align: right" title="Granted"&gt;12,490,252&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceGranted_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zx8JsIihQEKe" style="text-align: right" title="Granted"&gt;2.00&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Exercised&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_ecustom--ClassOfWarrantOrRightExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJiabeZfP21j" style="text-align: right" title="Exercised"&gt;(230,000&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_ecustom--ClassOfWarrantOrRightExercisePriceExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zRBud6hDklJj" style="text-align: right" title="Exercised"&gt;1.75&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Expired&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_ecustom--ClassOfWarrantOrRightExpired_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zgpdQ5beYpY3" style="text-align: right" title="Expired"&gt;(1,303,118&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceExpired_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJZW14Ui7P5b" style="text-align: right" title="Expired"&gt;9.44&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left; width: 73%"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iE_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zq84RogyWwXg" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance"&gt;29,520,695&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iE_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeU0ShjNHoua" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance"&gt;7.12&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_8AA_znMANA49xPC1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;



&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"&gt;&lt;/div&gt;






&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89B_ecustom--ScheduleOfOutstandingExercisableWarrantsTableTextBlock_zEslwoVmmbKl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_8B1_zwgc0kxq5yOf"&gt;As
of March 31, 2025, the Company had outstanding exercisable Warrants, as follows&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 52%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;Number&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right; padding-bottom: 1pt"&gt;Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;Expiry Date&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_znmWG5q11Rr7" style="width: 10%; text-align: right" title="Number of share outstanding"&gt;250,000&lt;/td&gt;&lt;td style="width: 4%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 12%; text-align: right"&gt;$&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zkOT0ptpe7vc" title="Exercise price"&gt;4.60&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 4%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zAaRkT6OD0Eb" style="width: 21%; text-align: right" title="Expiry date"&gt;September 1, 2025&lt;/td&gt;
    &lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_989_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_z1PAG4RB6qP9" style="text-align: right" title="Number of share outstanding"&gt;413,432&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zccv4H5D2tga" title="Exercise price"&gt;3.54&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zFPH8hXSimn6" style="text-align: right" title="Expiry date"&gt;December 22, 2025&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_982_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zOD2Vwt5jvYd" style="text-align: right" title="Number of share outstanding"&gt;315,000&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zml2rz96qtza" title="Exercise price"&gt;2.20&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_984_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zxGrrr2DcCMc" style="text-align: right" title="Expiry date"&gt;June 24, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_98F_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zgtcKLAPfXz4" style="text-align: right" title="Number of share outstanding"&gt;1,442,090&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_z5NsXueGgbsh" title="Exercise price"&gt;1.75&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zV2rhTaM7n9h" style="text-align: right" title="Expiry date"&gt;November 5, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_98B_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_zudt0nodwGB3" style="text-align: right" title="Number of share outstanding"&gt;2,199,602&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z6l8uGOopFq6" title="Exercise price"&gt;1.75&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_983_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z4PusRkWWnN6" style="text-align: right" title="Expiry date"&gt;November 13, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zusDyUTV8uU7" style="text-align: right" title="Number of share outstanding"&gt;615,385&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zzl0d8tJOMF8" title="Exercise price"&gt;3.25&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zOx5ZJgy35Wi" style="text-align: right" title="Expiry date"&gt;April 12, 2027&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_987_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zDWGjR8gfwS2" style="text-align: right" title="Number of share outstanding"&gt;2,577,320&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zBmEU13FwUD6" title="Exercise price"&gt;1.98&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zKOX4YEAXvyj" style="text-align: right" title="Expiry date"&gt;August 2, 2027&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_98D_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zNEWLgqbaKck" style="text-align: right" title="Number of share outstanding"&gt;15,666,626&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_ztgMmbLE4Eia" title="Exercise price"&gt;11.50&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zTN5WawxZ2s9" style="text-align: right" title="Expiry date"&gt;March 17, 2028&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_980_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zO2kvjZ4nmri" style="text-align: right" title="Number of share outstanding"&gt;2,816,742&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zXNZl1yaYAGj" title="Exercise price"&gt;2.31&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zm2RrfF7bSDb" style="text-align: right" title="Expiry date"&gt;September 17, 2028&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z82PxVQds6N" style="text-align: right" title="Number of share outstanding"&gt;1,288,660&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_zZch4Rvarty8" title="Exercise price"&gt;2.05&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z7Lu80CtrLGb" style="text-align: right" title="Expiry date"&gt;January 31, 2029&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zqMh37e14hm4" style="text-align: right" title="Number of share outstanding"&gt;836,045&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_z2wbhm6eoYe3" title="Exercise price"&gt;2.07&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_987_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zPcqYZ8eKPg6" style="text-align: right" title="Expiry date"&gt;November 5, 2029&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zuEQJ8HWYusk" style="border-bottom: Black 1pt solid; padding-bottom: 1pt; text-align: right" title="Number of share outstanding"&gt;1,099,793&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zMAcShPqlFr1" title="Exercise price"&gt;2.07&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zykADMu1lymb" style="text-align: right; padding-bottom: 1pt" title="Expiry date"&gt;November 13, 2029&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331_znkjsnzPdgT9" style="border-bottom: Black 2pt solid; text-align: right" title="Number of share outstanding"&gt;29,520,695&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A9_zxAGv8sXdYi9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;i&gt;Private
Warrants&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
March 17, 2023 (the &#x201c;Closing Date&#x201d;), the Company closed a series of transactions (the &#x201c;GXII Transaction&#x201d;)
pursuant to the Business Combination Agreement, dated as of September 25, 2022, by and among the Company, GXII, and Big Red Merger
Sub Ltd. In connection with the closing of the GXII Transaction (the &#x201c;Closing&#x201d;), the Company assumed GXII&#x2019;s
obligations under the agreement governing the GXII share purchase warrants (the &#x201c;GXII Warrants&#x201d;), as amended by an
assignment, assumption and amendment agreement (the &#x201c;NioCorp Assumed Warrant Agreement&#x201d;), and issued an aggregate
of &lt;span id="xdx_903_ecustom--WarrantsTradedPriorToClosing_iI_pid_uShares_c20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zXL8pyAsWmt5" title="Warrants traded prior to the closing"&gt;15,666,626&lt;/span&gt; Warrants (the &#x201c;NioCorp Assumed Warrants&#x201d;). The Company issued (a) &lt;span id="xdx_909_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeZTzsIIGWpg" title="Warrants traded prior to the closing"&gt;9,999,959&lt;/span&gt; public NioCorp Assumed Warrants
(the &#x201c;Public Warrants&#x201d;) in respect of the GXII Warrants that were publicly traded prior to the Closing and (b) &lt;span id="xdx_902_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_uShares_c20240701__20250331__us-gaap--TransactionTypeAxis__custom--GXIIPrivateWarrantsMember_z5ekLfVLSG82" title="Warrants traded prior to the closing"&gt;5,666,667&lt;/span&gt;
NioCorp Assumed Warrants (the &#x201c;Private Warrants&#x201d;) to GX Sponsor II LLC (the &#x201c;Sponsor&#x201d;).&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_906_eus-gaap--ClassOfWarrantOrRightReasonForIssuingToNonemployees_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zDdiLJwUCQJ9" title="Description of warrants"&gt;Each
Private Warrant entitles the holder to the right to purchase 1.11829212 Common Shares at an exercise price of $11.50 per 1.11829212
Common Shares (subject to adjustments for stock splits, stock dividends, reorganizations, recapitalizations and the like).&lt;/span&gt; No
fractional shares will be issued upon exercise of any Private Warrants, and fractional shares that would otherwise be due to the
exercising holder will be rounded down to the nearest whole Common Share. In no event will the Company be required to net cash
settle any Private Warrant.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Private Warrants: (i) will be exercisable either for cash or on a cashless basis at the holder&#x2019;s option and (ii) will not
be redeemable by the Company, in either case as long as the Private Warrants are held by the Sponsor, its members or any of their
permitted transferees (as prescribed in the NioCorp Assumed Warrant Agreement). In accordance with the NioCorp Assumed Warrant
Agreement, any Private Warrants that are held by someone other than the Sponsor, its members or any of their permitted transferees
are treated as Public Warrants.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_zO5nlUfr32E6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;The
Company classifies the Private Warrants as Level 2 instruments under the fair value hierarchy as inputs into our pricing model
are based on observable data points. &lt;span id="xdx_8B7_z5BRPxiunwme"&gt;The following observable data points were used in calculating the fair value of the Private
Warrants using a Black-Scholes pricing model&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: justify"&gt;Key Valuation Input&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;March 31,&#160; &lt;br/&gt;2025&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;June 30,&#160; &lt;br/&gt;2024&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 56%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zmmzHg7eLnha" style="width: 10%; text-align: right" title="Stock price on valuation date"&gt;$1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zfQSHvU6uVja" style="width: 10%; text-align: right" title="Stock price on valuation date"&gt;$1.73&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Implied volatility of Public Warrants&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zRaF7BcL41Q6" title="Implied volatility of public warrants"&gt;64.3&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zv8iE6GEy7Uh" title="Implied volatility of public warrants"&gt;69.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Risk free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z4BjPftoE7ld" title="Risk free rate"&gt;3.88&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zMUi0rOLnKcb" title="Risk free rate"&gt;4.45&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Dividend yield&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zkGZRysuk95g" title="Dividend yield"&gt;0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zWwVcgrZs0uj" title="Dividend yield"&gt;0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Expected warrant life in years&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zon97XCmEO91" title="Expected warrant life in years"&gt;3.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zKgRfAqfX6w" title="Expected warrant life in years"&gt;3.7&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p id="xdx_8A6_zo1qVvX9mHj5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"&gt;&lt;/div&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;


&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p id="xdx_894_ecustom--ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_zKZgpL8S3EN1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B1_zuV5sCPTXEzk"&gt;The
change in the Private Warrants liability is presented below&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zpdG3eXCbQJ6" style="width: 15%; text-align: right" title="Beginning balance"&gt;1,353&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zycPTplq6B2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;(680&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zQTpM9YuPcB9" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance"&gt;673&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A6_zY1r2Kmj1x1c" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;Contingent
Consent Warrants&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_90C_eus-gaap--BusinessCombinationContingentConsiderationArrangementsDescription_c20240701__20250331__us-gaap--BusinessAcquisitionAxis__custom--LindGlobalAssetManagementThreeLLCMember_zcipujrvKkUi" title="Contingent consideration description"&gt;As
consideration for entering into the previously publicly disclosed Waiver and Consent Agreement, dated September 25, 2022 (the
&#x201c;Lind Consent&#x201d;), between the Company and Lind Global Asset Management III, LLC (&#x201c;Lind III&#x201d;), Lind III
received, amongst other things, the right to receive additional Warrants (the &#x201c;Contingent Consent Warrants&#x201d;) if on
September 17, 2024, the closing trading price of the Common Shares on the Toronto Stock Exchange or such other stock exchange
on which such shares may then be listed, is less than C$10.00, subject to adjustments. The number of Contingent Consent Warrants
to be issued, if any, is based on the Canadian dollar equivalent (based on the then current Canadian to U.S. dollar exchange rate
as reported by Bloomberg, L.P.) of $5,000 divided by the five-day volume weighted average price of the Common Shares on the date
of issuance&lt;/span&gt;. Further, the number of Contingent Consent Warrants issued will be proportionately adjusted based on the percentage
of Warrants currently held by Lind III that are exercised, if any, prior to the issuance of any Contingent Consent Warrants.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
September 17, 2024, the Company&#x2019;s Common Share price was below the threshold price set forth in the Lind Consent, and accordingly,
the Company issued &lt;span id="xdx_90D_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_uShares_c20240915__20240917_zIESjBFGGSGa" title="Stock issued, shares"&gt;2,816,742&lt;/span&gt; Contingent Consent Warrants to Lind III. Each Contingent Consent Warrant is exercisable for one Common
Share at an exercise price of $&lt;span id="xdx_90F_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20240917__us-gaap--TransactionTypeAxis__custom--LindConsentWarrantIssuanceMember_zQXRsdoznIri" title="Common share exercise price, per share"&gt;2.308&lt;/span&gt; and may be exercised at any time prior to their expiration on September 17, 2028. The number
of Contingent Consent Warrants issued was based on $&lt;span id="xdx_90A_eus-gaap--StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_c20240915__20240917__us-gaap--TransactionTypeAxis__custom--LindConsentWarrantIssuanceMember_zGDS1wFMRVi"&gt;5,000&lt;/span&gt; divided by the five-day volume weighted average price of the Common
Shares on September 16, 2024. The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation
with the following inputs:&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89A_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_ztLRO3RxnkG9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8BA_zvsP6orW6hW8" style="display: none; visibility: hidden"&gt;The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;


&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 50%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid"&gt;Key Valuation Input&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;September 17, &lt;br/&gt;2024&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 39%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zOeDnDhNQPGi" style="width: 10%; text-align: center" title="Closing common share price"&gt;$1.74&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zlRpCuqjYDbe" title="Term (years)"&gt;4.0&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_z0fMlrvCt2J7" title="Historic equity volatility"&gt;67.14&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zbxhLeGHZyGf" title="Risk-free rate"&gt;3.44&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A3_zwhhEZ7n5uQj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company recognized a gain of $103 on the issuance of the Contingent Consent Warrants. This gain was recorded as a part of other
gains in the condensed consolidated statements of operations and comprehensive loss.&lt;/span&gt;&lt;/p&gt;

</us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock>
    <us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees contextRef="From2024-11-012024-11-05" id="Fact000914">On
November 5, 2024, the Company closed an underwritten public offering (the &#x201c;November 2024 Registered Offering&#x201d;), pursuant
to the underwriting agreement, dated November 3, 2024 (the &#x201c;Underwriting Agreement&#x201d;), with Maxim Group LLC, as underwriter
(&#x201c;Maxim&#x201d;), which consisted of 1,592,356 Common Shares, 1,672,090 Warrants (the &#x201c;Series A Public Warrants&#x201d;)
to purchase up to an additional 1,672,090 Common Shares and 836,045 Warrants (the &#x201c;Series B Public Warrants&#x201d; and,
together with the Series A Public Warrants, the &#x201c;November Public Warrants&#x201d;) to purchase up to an additional 836,045
Common Shares. Each Common Share was sold together with one Series A Public Warrant and one-half of one Series B Public Warrant
at a combined public offering price of $1.57. The gross proceeds from the November 2024 Registered Offering were $2,501before
deducting underwriting discounts and offering expenses. The November Public Warrants were classified as equity instruments and
accordingly, the net proceeds were allocated based on the relative fair values of the Common Shares and the November Public Warrants
on the date of issuance, with $943 allocated to the fair value of the November Public Warrants and the balance of the proceeds
of $1,558 allocated to Common Shares. The Company incurred total transaction costs related to the November 2024 Registered Offering
$1,226, which were treated as share issuance costs at closing. The Series A Public Warrants have an exercise price of $1.75 per
underlying Common Share, are exercisable immediately, and will expire on November 5, 2026. The Series B Public Warrants have an
exercise price of $2.07 per underlying Common Share, are exercisable beginning six months and one day from the date of issuance
and will expire on November 5, 2029. In addition, pursuant to the Underwriting Agreement, the Company granted Maxim a 45-day over-allotment
option to purchase (i) 238,853 additional Common Shares and (ii) 358,280 Option Warrants (as defined below) to purchase up to
an aggregate of 358,280 Common Shares. &#x201c;Option Warrant&#x201d; means one Series A Public Warrant combined with one-half of
one Series B Public Warrant. On November 4, 2024, Maxim partially exercised its over-allotment option to purchase 79,734 additional
Series A Public Warrants and 39,867 additional Series B Public Warrants, which amounts are included in the amounts discussed above
and were issued at closing of the November 2024 Registered Offering.</us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees>
    <niobf:DebtInstrumentIssuedPrincipalshars
      contextRef="From2024-11-012024-11-04_custom_PurchaseAgreementSeriesAMember"
      decimals="INF"
      id="Fact000918"
      unitRef="Shares">79734</niobf:DebtInstrumentIssuedPrincipalshars>
    <niobf:DebtInstrumentIssuedPrincipalshars
      contextRef="From2024-11-012024-11-04_custom_PurchaseAgreementSeriesBMember"
      decimals="INF"
      id="Fact000919"
      unitRef="Shares">39867</niobf:DebtInstrumentIssuedPrincipalshars>
    <us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees contextRef="From2024-11-012024-11-13" id="Fact000920">On
November 13, 2024, the Company closed a non-brokered private placement (the &#x201c;November 2024 Private Offering&#x201d;), pursuant
to binding subscription agreements with certain accredited investors as part of a non-brokered private placement of 2,199,602
units of the Company (the &#x201c;November 2024 Units&#x201d;). Each November 2024 Unit consisted of one Common Share, one Warrant
(a &#x201c;Series A Private Warrant&#x201d;) to purchase one Common Share, and one-half of one Warrant (each whole such Warrant,
a &#x201c;Series B Private Warrant&#x201d; and, together with the Series A Private Warrants, the &#x201c;November Private Warrants&#x201d;),
with each Series B Private Warrant entitling the holder thereof to purchase one additional Common Share. Each November 2024 Unit
was issued and sold at a price of $1.57. The gross proceeds of the November 2024 Private Offering were approximately $3,500 before
deducting offering expenses. Certain directors and officers of the Company (the &#x201c;Insider Investors&#x201d;) purchased November
2024 Units at a price of $1.7675 per November 2024 Unit, which price includes $0.1975 per November 2024 Private Warrant and allowed
such directors and officers to participate in the November 2024 Private Offering in accordance with the rules of the Nasdaq Stock
Market LLC (the &#x201c;Nasdaq&#x201d;). The Series A Private Warrants have an exercise price of $1.75 per underlying Common Share,
are exercisable immediately, and will expire on November 13, 2026. The Series B Private Warrants have an exercise price of $2.07
per underlying Common Share, are exercisable beginning six months and one day from the date of issuance and will expire on November
13, 2029. The Company recorded a non-cash expense of $34 and $110 to other operating expenses and employee related costs, respectively,
representing the excess of fair value of the November 2024 Units over the purchase price paid by Insider Investors.</us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees>
    <us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction
      contextRef="From2024-11-012024-11-13_us-gaap_PrivatePlacementMember"
      decimals="INF"
      id="Fact000922"
      unitRef="Shares">2199602</us-gaap:SaleOfStockNumberOfSharesIssuedInTransaction>
    <us-gaap:FairValueOptionChangesInFairValueGainLoss1
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact000924"
      unitRef="USD">1928000</us-gaap:FairValueOptionChangesInFairValueGainLoss1>
    <us-gaap:StockIssuedDuringPeriodValueOther
      contextRef="From2024-07-012025-03-31_us-gaap_CommonStockMember"
      decimals="-3"
      id="Fact000926"
      unitRef="USD">1573000</us-gaap:StockIssuedDuringPeriodValueOther>
    <niobf:RegisteredOffering
      contextRef="AsOf2024-11-30"
      decimals="-3"
      id="Fact000928"
      unitRef="USD">161000</niobf:RegisteredOffering>
    <niobf:PrivateOffering
      contextRef="AsOf2024-11-30"
      decimals="-3"
      id="Fact000930"
      unitRef="USD">60000</niobf:PrivateOffering>
    <niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000939">&lt;p id="xdx_890_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_zGtP4U5B8ha6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B1_zBWKQ5BXEkZ9" style="display: none; visibility: hidden"&gt;Schedule of Black-Scholes model used in valuing the November Public Warrants and November Private Warrants&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1pt solid; text-align: center"&gt;November 5, 2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;November Public Warrants:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series A Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series B Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 34%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zQGqmf6iL6Hc" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.455&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zPaVpDMkH5a4" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.455&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUrGInHMI6Ag" title="Term (years)"&gt;4.5&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z9alwOAUrval" title="Term (years)"&gt;2.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zN5vluBwd4A" title="Historic equity volatility"&gt;67.43&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z5IzFhBG33t6" title="Historic equity volatility"&gt;67.13&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zJoLmlKStXn3" title="Risk-free rate"&gt;4.14&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20241101__20241105__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zgPJD8e9wCc2" title="Risk-free rate"&gt;4.20&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td colspan="5" style="text-align: center"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td colspan="5" style="border-bottom: Black 1pt solid; text-align: center"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;March
    31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;November Private Warrants:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Series A Private Warrants&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Series B Private Warrants&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 26%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: right"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: right"&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zPlsX8iXnBY" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_z1K1iDQHBWlg" style="width: 10%; text-align: right" title="Closing common share price"&gt;1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_90A_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zeYwXGZXTZtk" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0961"&gt;1.62&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zGD3gz22wmI9" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0963"&gt;4.5&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_ziiCOViTtbn9" title="Historic equity volatility"&gt;80.09&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zYDzzOSa1C91" title="Historic equity volatility"&gt;71.22&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPrivateWarrantsMember_zJ262g57EJ1b" title="Risk-free rate"&gt;3.96&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right" title="Closing common share price"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPrivateWarrantsMember_zY38WuWDMsz2" title="Risk-free rate"&gt;3.94&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisTableTextBlock>
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    <niobf:ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000973">&lt;p id="xdx_895_ecustom--ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock_z4uzzhxwxmb1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B6_zpz79LdOELRc"&gt;The
following table sets forth a summary of the changes in the fair value of the November Private Warrants liabilities&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;November Private Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 42%; text-align: justify"&gt;Fair value at issuance (November 13, 2024)&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_z7Uww5h43M27" style="width: 15%; text-align: right" title="Beginning balance"&gt;1,929&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zLVJ4FdTSkyh" style="border-bottom: Black 1pt solid; text-align: right" title="Beginning balance"&gt;1,258&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify; padding-bottom: 1pt"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20241114__20250331__us-gaap--SubsidiarySaleOfStockAxis__custom--NovemberPrivateWarrantsliabilitiesMember_zr8K1NdvbYAe" style="border-bottom: Black 2pt solid; text-align: right" title="Beginning balance"&gt;3,187&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfChangesInTheFairValueOfTheNovemberPrivateWarrantsTableTextBlock>
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      contextRef="AsOf2024-11-13_custom_NovemberPrivateWarrantsliabilitiesMember"
      decimals="-3"
      id="Fact000975"
      unitRef="USD">1929000</niobf:ChangesInFairValueOfInitialValuation1>
    <us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs
      contextRef="From2024-11-142025-03-31_custom_NovemberPrivateWarrantsliabilitiesMember"
      decimals="-3"
      id="Fact000977"
      unitRef="USD">1258000</us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs>
    <niobf:ChangesInFairValueOfInitialValuation1
      contextRef="AsOf2025-03-31_custom_NovemberPrivateWarrantsliabilitiesMember"
      decimals="-3"
      id="Fact000979"
      unitRef="USD">3187000</niobf:ChangesInFairValueOfInitialValuation1>
    <niobf:CommonShareDescription contextRef="From2025-01-012025-01-31" id="Fact000981">On
January 31, 2025, the Company closed an underwritten registered direct offering (the &#x201c;January 2025 Offering&#x201d;), pursuant
to an underwriting agreement, dated January 29, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold
2,577,320 Common Shares, 2,577,320 Series A warrants to purchase up to 2,577,320 Common Shares (the &#x201c;January 2025 Series
A Warrants&#x201d;) and 1,288,660 Series B warrants to purchase up to an additional 1,288,660 Common Shares (the &#x201c;January
2025 Series B Warrants&#x201d; and, together with the January 2025 Series A Warrants, the &#x201c;January 2025 Warrants&#x201d;).
Each Common Share was sold together with one January 2025 Series A Warrant and one-half of one January 2025 Series B Warrant at
a combined public offering price of $1.94. The gross proceeds from the January 2025 Offering were approximately $5,000 before
deducting underwriting discounts and offering expenses. The January 2025 Warrants were classified as equity instruments and accordingly,
the net proceeds were allocated based on the relative fair values of the Common Shares and the January 2025 Warrants on the date
of issuance, with $2,200 allocated to the fair value of the January 2025 Warrants and the balance of the proceeds of $2,800 allocated
to Common Shares. The Company incurred total transaction costs related to the January 2025 Offering of $799, which were treated
as share issuance costs at closing. The January 2025 Series A Warrants have an exercise price of $1.98 per underlying Common Share,
are exercisable immediately, and will expire on August 2, 2027. The January 2025 Series B Warrants have an exercise price of $2.05
per underlying Common Share, are exercisable immediately, and will expire on January 31, 2029</niobf:CommonShareDescription>
    <niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact000983">&lt;p id="xdx_897_ecustom--FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock_zOPFjWNTFfx5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_8BC_zEpnDNRlsPo5"&gt;The
following primary inputs were used in the Black-Scholes model for valuing the January 2025 Warrants&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series A Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Series B Public Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 34%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUK7ziTDjjDh" style="width: 10%; text-align: right" title="Closing common share price"&gt;2.25&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zrN5Qt4p0dab" style="width: 10%; text-align: right" title="Closing common share price"&gt;2.25&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zUb1QydvvX2d" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0989"&gt;2.5&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dxL_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zmqiwcCaHNI6" title="Term (years)::XDX::P4Y6M0D"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0991"&gt;4.0&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zRnk9AZlDUq2" title="Historic equity volatility"&gt;73.18&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_zKo75ks1eYp4" title="Historic equity volatility"&gt;73.36&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesAPublicWarrantsMember_zYL97Ypuj8Yb" title="Risk-free rate"&gt;4.23&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240701__20250131__us-gaap--StatementEquityComponentsAxis__custom--SeriesBPublicWarrantsMember_z4UKwilL8PJ9" title="Risk-free rate"&gt;4.31&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
</niobf:FairValueAssetsAndLiabilityMeasuredOnRecurringAndNonrecurringBasisOfWarrantsTableTextBlock>
    <us-gaap:SharePrice
      contextRef="AsOf2025-01-31_custom_SeriesAPublicWarrantsMember"
      decimals="INF"
      id="Fact000985"
      unitRef="USDPShares">2.25</us-gaap:SharePrice>
    <us-gaap:SharePrice
      contextRef="AsOf2025-01-31_custom_SeriesBPublicWarrantsMember"
      decimals="INF"
      id="Fact000987"
      unitRef="USDPShares">2.25</us-gaap:SharePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2024-07-012025-01-31_custom_SeriesAPublicWarrantsMember"
      decimals="INF"
      id="Fact000993"
      unitRef="Pure">0.7318</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2024-07-012025-01-31_custom_SeriesBPublicWarrantsMember"
      decimals="INF"
      id="Fact000995"
      unitRef="Pure">0.7336</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
      contextRef="From2024-07-012025-01-31_custom_SeriesAPublicWarrantsMember"
      decimals="INF"
      id="Fact000997"
      unitRef="Pure">0.0423</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
      contextRef="From2024-07-012025-01-31_custom_SeriesBPublicWarrantsMember"
      decimals="INF"
      id="Fact000999"
      unitRef="Pure">0.0431</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum>
    <niobf:ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001006">&lt;p id="xdx_894_ecustom--ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock_zvI9NWNFkM5l" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.7pt 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B3_zSklU7RVUor9" style="display: none; visibility: hidden"&gt;The Company issued the following Common Shares under the Yorkville Equity Facility Financing Agreement during the nine months period:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For The Three Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For The Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: justify"&gt;Common Shares issued&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--CommonStockSharesIssued1_pid_uShares_c20250101__20250331_zrOD8Dq57C8l" style="width: 10%; text-align: right" title="Common shares issued"&gt;709,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_ecustom--CommonStockSharesIssued1_pid_uShares_c20240101__20240331_z7jh3g1h800i" style="width: 10%; text-align: right" title="Common shares issued"&gt;242,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_ecustom--CommonStockSharesIssued1_pid_uShares_c20240701__20250331_zYq2OiXmbHgg" style="width: 10%; text-align: right" title="Common shares issued"&gt;1,919,250&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_ecustom--CommonStockSharesIssued1_pid_uShares_c20230701__20240331_zveGHwfNQHS5" style="width: 10%; text-align: right" title="Common shares issued"&gt;462,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Gross funds received&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20250101__20250331_z0D0vkRXvHcc" style="text-align: right" title="Gross funds received"&gt;1,286&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240101__20240331_ztdZHkLeFdEc" style="text-align: right" title="Gross funds received"&gt;607&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20240701__20250331_znZQStku6bth" style="text-align: right" title="Gross funds received"&gt;3,111&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--SaleOfStockConsiderationReceivedPerTransaction_c20230701__20240331_zejVnhcf1Ni3" style="text-align: right" title="Gross funds received"&gt;1,373&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Market value of Common Shares Issued &lt;br/&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--StockIssued1_c20250101__20250331_zQmRtplEnIn7" style="text-align: right" title="Market Value of Shares Issued"&gt;1,328&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--StockIssued1_c20240101__20240331_zyW8adFDxu29" style="text-align: right" title="Market Value of Shares Issued"&gt;622&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--StockIssued1_c20240701__20250331_zAUsQIDLSPx1" style="text-align: right" title="Market Value of Shares Issued"&gt;3,191&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--StockIssued1_c20230701__20240331_ztUs3rcYqoye" style="text-align: right" title="Market Value of Shares Issued"&gt;1,451&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Loss on issuance&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20250101__20250331_zR5OagxFirVk" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;42&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240101__20240331_zg4j1FyMYBJa" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;15&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20240701__20250331_zg3xNy9XE5qj" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;80&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NonmonetaryTransactionGainLossRecognizedOnTransfer_c20230701__20240331_zcQh8CoD3Wt3" style="text-align: right" title="(Gain)/Loss on Issuance"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleCommonSharesUnderFacilityFinancingAgreementTableTextBlock>
    <niobf:CommonStockSharesIssued1
      contextRef="From2025-01-012025-03-31"
      decimals="INF"
      id="Fact001008"
      unitRef="Shares">709000</niobf:CommonStockSharesIssued1>
    <niobf:CommonStockSharesIssued1
      contextRef="From2024-01-012024-03-31"
      decimals="INF"
      id="Fact001010"
      unitRef="Shares">242500</niobf:CommonStockSharesIssued1>
    <niobf:CommonStockSharesIssued1
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001012"
      unitRef="Shares">1919250</niobf:CommonStockSharesIssued1>
    <niobf:CommonStockSharesIssued1
      contextRef="From2023-07-012024-03-31"
      decimals="INF"
      id="Fact001014"
      unitRef="Shares">462500</niobf:CommonStockSharesIssued1>
    <us-gaap:SaleOfStockConsiderationReceivedPerTransaction
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001016"
      unitRef="USD">1286000</us-gaap:SaleOfStockConsiderationReceivedPerTransaction>
    <us-gaap:SaleOfStockConsiderationReceivedPerTransaction
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001018"
      unitRef="USD">607000</us-gaap:SaleOfStockConsiderationReceivedPerTransaction>
    <us-gaap:SaleOfStockConsiderationReceivedPerTransaction
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001020"
      unitRef="USD">3111000</us-gaap:SaleOfStockConsiderationReceivedPerTransaction>
    <us-gaap:SaleOfStockConsiderationReceivedPerTransaction
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001022"
      unitRef="USD">1373000</us-gaap:SaleOfStockConsiderationReceivedPerTransaction>
    <us-gaap:StockIssued1
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001024"
      unitRef="USD">1328000</us-gaap:StockIssued1>
    <us-gaap:StockIssued1
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001026"
      unitRef="USD">622000</us-gaap:StockIssued1>
    <us-gaap:StockIssued1
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001028"
      unitRef="USD">3191000</us-gaap:StockIssued1>
    <us-gaap:StockIssued1
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001030"
      unitRef="USD">1451000</us-gaap:StockIssued1>
    <us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001032"
      unitRef="USD">42000</us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer>
    <us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001034"
      unitRef="USD">15000</us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer>
    <us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001036"
      unitRef="USD">80000</us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer>
    <us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001038"
      unitRef="USD">78000</us-gaap:NonmonetaryTransactionGainLossRecognizedOnTransfer>
    <niobf:ScheduleOfStockOptionRollForwardTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001040">&lt;p id="xdx_89F_ecustom--ScheduleOfStockOptionRollForwardTableTextBlock_zErRuunJX81b" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8BF_zjCXsQ7AAX0h" style="display: none; visibility: hidden"&gt;Schedule Of Stock Option&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 96%; margin-left: 0.25in"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Number of Options&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Weighted Average&#160; &lt;br/&gt;Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Aggregate&#160; &lt;br/&gt;Intrinsic Value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: right"&gt;Weighted&#160; &lt;br/&gt;Average Remaining Life&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 43%; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, June 30, 2024&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20240701__20250331_zr59IiOcCo85" style="width: 10%; text-align: right" title="Beginning balance (in shares)"&gt;2,495,500&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_uUSDPShares_c20240701__20250331_zMraJqbfl0p8" style="width: 10%; text-align: right" title="Beginning balance"&gt;4.78&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Granted&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_uShares_c20240701__20250331_zLV3UpqUsUZ7" style="text-align: right" title="Granted (in shares)"&gt;945,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zpdGpISfMN9b" style="text-align: right" title="Granted"&gt;1.41&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Exercised&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20240701__20250331_zdomRMgujoMc" style="text-align: right" title="Exercised (in shares)"&gt;(5,000&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zu4wEmbLstX3" style="text-align: right" title="Exercised"&gt;1.40&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Cancelled/expired&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pid_di_uShares_c20240701__20250331_zJfzzDIsW9Bj" style="border-bottom: Black 1pt solid; text-align: right" title="Cancelled/expired (in shares)"&gt;(362,500&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pid_uUSDPShares_c20240701__20250331_zePQVoED83E3" style="border-bottom: Black 1pt solid; text-align: right" title="Cancelled/expired"&gt;9.25&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20240701__20250331_z06SEuMrI2jd" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance (in shares)"&gt;3,073,000&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_uUSDPShares_c20240701__20250331_zhkiFsVxUxA7" style="border-bottom: Black 2pt solid; padding-bottom: 1pt; text-align: right" title="Ending balance"&gt;3.17&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_c20250331_z9DADAx3v6Vl" style="border-bottom: Black 2pt solid; text-align: right" title="Aggregate intrinsic value"&gt;530&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20240701__20250331_zdJib6ZBglf9" title="Weighted average remaining contractual life"&gt;3.6&lt;/span&gt; Years&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfStockOptionRollForwardTableTextBlock>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
      contextRef="AsOf2024-06-30"
      decimals="INF"
      id="Fact001042"
      unitRef="Shares">2495500</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
      contextRef="AsOf2024-06-30"
      decimals="INF"
      id="Fact001044"
      unitRef="USDPShares">4.78</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001046"
      unitRef="Shares">945000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001048"
      unitRef="USDPShares">1.41</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>
    <us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001050"
      unitRef="Shares">5000</us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001052"
      unitRef="USDPShares">1.40</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001054"
      unitRef="Shares">362500</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
      contextRef="From2024-07-01to2025-03-31"
      decimals="INF"
      id="Fact001056"
      unitRef="USDPShares">9.25</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
      contextRef="AsOf2025-03-31"
      decimals="INF"
      id="Fact001058"
      unitRef="Shares">3073000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
      contextRef="AsOf2025-03-31"
      decimals="INF"
      id="Fact001060"
      unitRef="USDPShares">3.17</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001062"
      unitRef="USD">530000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 contextRef="From2024-07-01to2025-03-31" id="Fact001064">P3Y7M6D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2024-12-222024-12-23_us-gaap_StockOptionMember"
      decimals="INF"
      id="Fact001065"
      unitRef="Shares">935000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
      contextRef="From2024-12-222024-12-23_us-gaap_StockOptionMember"
      decimals="INF"
      id="Fact001066"
      unitRef="USDPShares">0.84</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
      contextRef="From2024-12-222024-12-23_us-gaap_StockOptionMember"
      decimals="INF"
      id="Fact001067"
      unitRef="Pure">0.0444</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2024-12-222024-12-23_us-gaap_StockOptionMember"
      decimals="INF"
      id="Fact001068"
      unitRef="Pure">0.672</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:OtherExpenses
      contextRef="From2024-12-222024-12-23_us-gaap_StockOptionMember"
      decimals="-3"
      id="Fact001069"
      unitRef="USD">781000</us-gaap:OtherExpenses>
    <us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001071">&lt;p id="xdx_892_eus-gaap--ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_z3V9Yudh1Fk3" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif; display: none; visibility: hidden"&gt;&lt;span id="xdx_8B5_z9tGUNRTnXs7"&gt;Schedule of warrant transactions&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Number of Warrants&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Weighted Average Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 73%; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, June 30, 2024&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightOutstanding_iS_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zknXkem9h744" style="width: 10%; text-align: right" title="Beginning balance"&gt;18,563,561&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iS_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zW5wmK58hCb9" style="width: 10%; text-align: right" title="Beginning balance"&gt;10.53&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Granted&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--ClassOfWarrantOrRightGranted_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zs8SuILVanx1" style="text-align: right" title="Granted"&gt;12,490,252&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceGranted_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zx8JsIihQEKe" style="text-align: right" title="Granted"&gt;2.00&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Exercised&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
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    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_ecustom--ClassOfWarrantOrRightExercisePriceExercised_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zRBud6hDklJj" style="text-align: right" title="Exercised"&gt;1.75&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-left: 0.125in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;Expired&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_ecustom--ClassOfWarrantOrRightExpired_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zgpdQ5beYpY3" style="text-align: right" title="Expired"&gt;(1,303,118&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--ClassOfWarrantOrRightExercisePriceExpired_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zJZW14Ui7P5b" style="text-align: right" title="Expired"&gt;9.44&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt; text-align: left; width: 73%"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Balance, March 31, 2025&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ClassOfWarrantOrRightOutstanding_iE_pid_uShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zq84RogyWwXg" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance"&gt;29,520,695&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: left; width: 1%"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iE_pid_uUSDPShares_c20240701__20250331__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_zeU0ShjNHoua" style="border-top: Black 1pt solid; border-bottom: Black 2pt solid; text-align: right; width: 10%" title="Ending balance"&gt;7.12&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
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      contextRef="AsOf2024-06-30_us-gaap_WarrantMember"
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      decimals="INF"
      id="Fact001077"
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      id="Fact001085"
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      id="Fact001087"
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      contextRef="AsOf2025-03-31_us-gaap_WarrantMember"
      decimals="INF"
      id="Fact001089"
      unitRef="Shares">29520695</us-gaap:ClassOfWarrantOrRightOutstanding>
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      contextRef="AsOf2025-03-31_us-gaap_WarrantMember"
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      id="Fact001091"
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    <niobf:ScheduleOfOutstandingExercisableWarrantsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001098">&lt;p id="xdx_89B_ecustom--ScheduleOfOutstandingExercisableWarrantsTableTextBlock_zEslwoVmmbKl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_8B1_zwgc0kxq5yOf"&gt;As
of March 31, 2025, the Company had outstanding exercisable Warrants, as follows&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 52%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;Number&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right; padding-bottom: 1pt"&gt;Exercise Price&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;Expiry Date&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_znmWG5q11Rr7" style="width: 10%; text-align: right" title="Number of share outstanding"&gt;250,000&lt;/td&gt;&lt;td style="width: 4%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 12%; text-align: right"&gt;$&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zkOT0ptpe7vc" title="Exercise price"&gt;4.60&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 4%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice4.60Member_zAaRkT6OD0Eb" style="width: 21%; text-align: right" title="Expiry date"&gt;September 1, 2025&lt;/td&gt;
    &lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_989_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_z1PAG4RB6qP9" style="text-align: right" title="Number of share outstanding"&gt;413,432&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zccv4H5D2tga" title="Exercise price"&gt;3.54&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.54Member_zFPH8hXSimn6" style="text-align: right" title="Expiry date"&gt;December 22, 2025&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_982_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zOD2Vwt5jvYd" style="text-align: right" title="Number of share outstanding"&gt;315,000&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zml2rz96qtza" title="Exercise price"&gt;2.20&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_984_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.20Member_zxGrrr2DcCMc" style="text-align: right" title="Expiry date"&gt;June 24, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_98F_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zgtcKLAPfXz4" style="text-align: right" title="Number of share outstanding"&gt;1,442,090&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_z5NsXueGgbsh" title="Exercise price"&gt;1.75&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.75Member_zV2rhTaM7n9h" style="text-align: right" title="Expiry date"&gt;November 5, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_98B_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_zudt0nodwGB3" style="text-align: right" title="Number of share outstanding"&gt;2,199,602&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z6l8uGOopFq6" title="Exercise price"&gt;1.75&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_983_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice01.75Member_z4PusRkWWnN6" style="text-align: right" title="Expiry date"&gt;November 13, 2026&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zusDyUTV8uU7" style="text-align: right" title="Number of share outstanding"&gt;615,385&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zzl0d8tJOMF8" title="Exercise price"&gt;3.25&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_982_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice3.25Member_zOx5ZJgy35Wi" style="text-align: right" title="Expiry date"&gt;April 12, 2027&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_987_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zDWGjR8gfwS2" style="text-align: right" title="Number of share outstanding"&gt;2,577,320&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zBmEU13FwUD6" title="Exercise price"&gt;1.98&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_985_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice1.98Member_zKOX4YEAXvyj" style="text-align: right" title="Expiry date"&gt;August 2, 2027&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_98D_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zNEWLgqbaKck" style="text-align: right" title="Number of share outstanding"&gt;15,666,626&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_ztgMmbLE4Eia" title="Exercise price"&gt;11.50&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice11.50Member_zTN5WawxZ2s9" style="text-align: right" title="Expiry date"&gt;March 17, 2028&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_980_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zO2kvjZ4nmri" style="text-align: right" title="Number of share outstanding"&gt;2,816,742&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zXNZl1yaYAGj" title="Exercise price"&gt;2.31&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.31Member_zm2RrfF7bSDb" style="text-align: right" title="Expiry date"&gt;September 17, 2028&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td id="xdx_984_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z82PxVQds6N" style="text-align: right" title="Number of share outstanding"&gt;1,288,660&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_zZch4Rvarty8" title="Exercise price"&gt;2.05&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98A_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.05Member_z7Lu80CtrLGb" style="text-align: right" title="Expiry date"&gt;January 31, 2029&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td id="xdx_988_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pid_uShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zqMh37e14hm4" style="text-align: right" title="Number of share outstanding"&gt;836,045&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_902_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_z2wbhm6eoYe3" title="Exercise price"&gt;2.07&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_987_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice2.07Member_zPcqYZ8eKPg6" style="text-align: right" title="Expiry date"&gt;November 5, 2029&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
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    &lt;td id="xdx_98C_eus-gaap--WarrantsAndRightsOutstandingMaturityDate_iI_c20250331__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--ExercisePrice02.07Member_zykADMu1lymb" style="text-align: right; padding-bottom: 1pt" title="Expiry date"&gt;November 13, 2029&lt;/td&gt;
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&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
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    &lt;td style="padding-bottom: 1pt; text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right; padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfOutstandingExercisableWarrantsTableTextBlock>
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      contextRef="From2024-07-012025-03-31_us-gaap_WarrantMember"
      id="Fact001180">Each
Private Warrant entitles the holder to the right to purchase 1.11829212 Common Shares at an exercise price of $11.50 per 1.11829212
Common Shares (subject to adjustments for stock splits, stock dividends, reorganizations, recapitalizations and the like).</us-gaap:ClassOfWarrantOrRightReasonForIssuingToNonemployees>
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Company classifies the Private Warrants as Level 2 instruments under the fair value hierarchy as inputs into our pricing model
are based on observable data points. &lt;span id="xdx_8B7_z5BRPxiunwme"&gt;The following observable data points were used in calculating the fair value of the Private
Warrants using a Black-Scholes pricing model&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: justify"&gt;Key Valuation Input&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;March 31,&#160; &lt;br/&gt;2025&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;June 30,&#160; &lt;br/&gt;2024&lt;/td&gt;
    &lt;td style="padding-bottom: 1pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 56%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zmmzHg7eLnha" style="width: 10%; text-align: right" title="Stock price on valuation date"&gt;$1.97&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_iI_pid_uUSDPShares_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zfQSHvU6uVja" style="width: 10%; text-align: right" title="Stock price on valuation date"&gt;$1.73&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Implied volatility of Public Warrants&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zRaF7BcL41Q6" title="Implied volatility of public warrants"&gt;64.3&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zv8iE6GEy7Uh" title="Implied volatility of public warrants"&gt;69.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Risk free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
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    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zMUi0rOLnKcb" title="Risk free rate"&gt;4.45&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Dividend yield&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zkGZRysuk95g" title="Dividend yield"&gt;0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pid_dp_uPure_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zWwVcgrZs0uj" title="Dividend yield"&gt;0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Expected warrant life in years&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240701__20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zon97XCmEO91" title="Expected warrant life in years"&gt;3.0&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20230701__20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zKgRfAqfX6w" title="Expected warrant life in years"&gt;3.7&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
</us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock>
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      decimals="INF"
      id="Fact001196"
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    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
      contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member"
      decimals="INF"
      id="Fact001198"
      unitRef="Pure">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
      contextRef="From2024-07-012025-03-31_us-gaap_FairValueInputsLevel2Member"
      id="Fact001200">P3Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
      contextRef="From2023-07-012024-06-30_us-gaap_FairValueInputsLevel2Member"
      id="Fact001202">P3Y8M12D</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <niobf:ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001209">&lt;p id="xdx_894_ecustom--ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock_zKZgpL8S3EN1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B1_zuV5sCPTXEzk"&gt;The
change in the Private Warrants liability is presented below&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 80%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: justify"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;For the Nine Months Ended March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 62%"&gt;Fair value as of June 30, 2024&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_ecustom--ChangesInFairValueOfInitialValuation1_iS_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zpdG3eXCbQJ6" style="width: 15%; text-align: right" title="Beginning balance"&gt;1,353&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Change in fair value&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zycPTplq6B2" style="border-bottom: Black 1pt solid; text-align: right" title="Change in fair value"&gt;(680&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Fair value as of March 31, 2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_ecustom--ChangesInFairValueOfInitialValuation1_iE_pn3n3_c20240701__20250331__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--NoteWarrantMember_zQTpM9YuPcB9" style="border-bottom: Black 2pt solid; text-align: right" title="Ending balance"&gt;673&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock>
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      contextRef="AsOf2024-06-30_us-gaap_NoteWarrantMember"
      decimals="-3"
      id="Fact001211"
      unitRef="USD">1353000</niobf:ChangesInFairValueOfInitialValuation1>
    <us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs
      contextRef="From2024-07-012025-03-31_us-gaap_NoteWarrantMember"
      decimals="-3"
      id="Fact001213"
      unitRef="USD">-680000</us-gaap:ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputs>
    <niobf:ChangesInFairValueOfInitialValuation1
      contextRef="AsOf2025-03-31_us-gaap_NoteWarrantMember"
      decimals="-3"
      id="Fact001215"
      unitRef="USD">673000</niobf:ChangesInFairValueOfInitialValuation1>
    <us-gaap:BusinessCombinationContingentConsiderationArrangementsDescription
      contextRef="From2024-07-012025-03-31_custom_LindGlobalAssetManagementThreeLLCMember"
      id="Fact001217">As
consideration for entering into the previously publicly disclosed Waiver and Consent Agreement, dated September 25, 2022 (the
&#x201c;Lind Consent&#x201d;), between the Company and Lind Global Asset Management III, LLC (&#x201c;Lind III&#x201d;), Lind III
received, amongst other things, the right to receive additional Warrants (the &#x201c;Contingent Consent Warrants&#x201d;) if on
September 17, 2024, the closing trading price of the Common Shares on the Toronto Stock Exchange or such other stock exchange
on which such shares may then be listed, is less than C$10.00, subject to adjustments. The number of Contingent Consent Warrants
to be issued, if any, is based on the Canadian dollar equivalent (based on the then current Canadian to U.S. dollar exchange rate
as reported by Bloomberg, L.P.) of $5,000 divided by the five-day volume weighted average price of the Common Shares on the date
of issuance</us-gaap:BusinessCombinationContingentConsiderationArrangementsDescription>
    <us-gaap:StockIssuedDuringPeriodSharesNewIssues
      contextRef="From2024-09-152024-09-17"
      decimals="INF"
      id="Fact001219"
      unitRef="Shares">2816742</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
    <us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
      contextRef="AsOf2024-09-17_custom_LindConsentWarrantIssuanceMember"
      decimals="INF"
      id="Fact001221"
      unitRef="USDPShares">2.308</us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>
    <us-gaap:StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants
      contextRef="From2024-09-152024-09-17_custom_LindConsentWarrantIssuanceMember"
      decimals="0"
      id="Fact001222"
      unitRef="USD">5000</us-gaap:StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants>
    <us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001224">&lt;p id="xdx_89A_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock_ztLRO3RxnkG9" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8BA_zvsP6orW6hW8" style="display: none; visibility: hidden"&gt;The Company valued the Contingent Consent Warrants at $2,262 based on a Black-Scholes valuation with the following inputs:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;


&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 50%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1pt solid"&gt;Key Valuation Input&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: center"&gt;September 17, &lt;br/&gt;2024&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 39%; text-align: justify"&gt;Closing Common Share price&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_98D_eus-gaap--SharePrice_iI_pid_uUSDPShares_c20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zOeDnDhNQPGi" style="width: 10%; text-align: center" title="Closing common share price"&gt;$1.74&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Term (years)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtY_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zlRpCuqjYDbe" title="Term (years)"&gt;4.0&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: justify"&gt;Historic equity volatility&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_z0fMlrvCt2J7" title="Historic equity volatility"&gt;67.14&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: justify"&gt;Risk-free rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&lt;span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_pid_dp_uPure_c20240915__20240917__us-gaap--MeasurementInputTypeAxis__us-gaap--MeasurementInputExercisePriceMember__us-gaap--ValuationTechniqueAxis__custom--BlackScholesValuationMember_zbxhLeGHZyGf" title="Risk-free rate"&gt;3.44&lt;/span&gt;%&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock>
    <us-gaap:SharePrice
      contextRef="AsOf2024-09-17_us-gaap_MeasurementInputExercisePriceMember_custom_BlackScholesValuationMember"
      decimals="INF"
      id="Fact001226"
      unitRef="USDPShares">1.74</us-gaap:SharePrice>
    <us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
      contextRef="From2024-09-152024-09-17_us-gaap_MeasurementInputExercisePriceMember_custom_BlackScholesValuationMember"
      id="Fact001228">P4Y</us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
      contextRef="From2024-09-152024-09-17_us-gaap_MeasurementInputExercisePriceMember_custom_BlackScholesValuationMember"
      decimals="INF"
      id="Fact001230"
      unitRef="Pure">0.6714</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
      contextRef="From2024-09-152024-09-17_us-gaap_MeasurementInputExercisePriceMember_custom_BlackScholesValuationMember"
      decimals="INF"
      id="Fact001232"
      unitRef="Pure">0.0344</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum>
    <us-gaap:RelatedPartyTransactionsDisclosureTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001234">&lt;p id="xdx_80F_eus-gaap--RelatedPartyTransactionsDisclosureTextBlock_z8zTnDOhSIvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;9.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_821_zXRqhK4Hlt71"&gt;RELATED
    PARTY TRANSACTIONS&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;On
September 11, 2024, the Company and Mark Smith, Chief Executive Officer, President and Executive Chairman of NioCorp, entered
into a loan agreement (the &#x201c;Smith Loan Agreement&#x201d;), which provides for a $&lt;span id="xdx_90F_eus-gaap--LongTermLineOfCredit_iI_pn3n3_c20240911__us-gaap--TypeOfArrangementAxis__custom--NonRevolvingCreditFacilityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_z7DP7FbKXlLi"&gt;2,000&lt;/span&gt; non-revolving, multi-draw credit facility
(the &#x201c;Smith Loan&#x201d;). The Smith Loan has an interest rate of &lt;span id="xdx_90F_eus-gaap--RelatedPartyTransactionRate_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_zCTV9c4FdCZc"&gt;10&lt;/span&gt;% per annum, calculated monthly in arrears, through the
date of repayment of the Smith Loan. The Company can pre-pay the Smith Loan at any time without notice and without penalty, but
any amount of principal or interest repaid by the Company prior to the earlier of the date of expiration of the Smith Loan Agreement
on June 30, 2025 and the occurrence of an event of default under the Smith Loan Agreement will be subject to an early payment
fee of &lt;span id="xdx_906_ecustom--LineOfCreditFacilityEstablishmentFee_pid_dp_uPure_c20240902__20240911__us-gaap--TypeOfArrangementAxis__custom--GeneralSecurityAgreementMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_ziSmpq6SjsDb"&gt;2.5&lt;/span&gt;% of the value of any such payment. The Smith Loan is secured by all of the Company&#x2019;s assets pursuant to a general
security agreement between the Company and Mr. Smith dated September 11, 2024.&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;










&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Through
October 30, 2024, the Company borrowed a total of $&lt;span id="xdx_905_eus-gaap--OtherBorrowings_iI_pn3n3_c20241030_zELugWvHe6xg"&gt;504&lt;/span&gt; under the Smith Loan and subsequently the Company repaid $508, representing
the balance of the interest and principal outstanding under the Smith Loan, along with $&lt;span id="xdx_908_eus-gaap--LoanProcessingFee_pn3n3_c20241101__20250331__us-gaap--FairValueByLiabilityClassAxis__us-gaap--BorrowingsMember_z2bnQAQnJjqc" title="Loan Origination fees"&gt;41&lt;/span&gt; related to loan origination fees payable.
As of March 31, 2025, the principal amount outstanding under the Smith Loan was $&lt;span id="xdx_906_eus-gaap--AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_iI_pn3n3_c20250331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_z2iSOvYgYMnl" title="Accounts payable and accrued liabilities"&gt;0&lt;/span&gt; and accounts payable and accrued liabilities
as of March 31, 2025, included $&lt;span id="xdx_905_eus-gaap--LoanProcessingFee_pn3n3_c20240701__20250331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__srt--ChiefExecutiveOfficerMember_zNbGi8CEBUW6" title="Loan Origination fees"&gt;0&lt;/span&gt; dollars of loan origination fees payable to Mr. Smith.&lt;/span&gt;&lt;/p&gt;

</us-gaap:RelatedPartyTransactionsDisclosureTextBlock>
    <us-gaap:LongTermLineOfCredit
      contextRef="AsOf2024-09-11_custom_NonRevolvingCreditFacilityAgreementMember_srt_ChiefExecutiveOfficerMember"
      decimals="-3"
      id="Fact001235"
      unitRef="USD">2000000</us-gaap:LongTermLineOfCredit>
    <us-gaap:RelatedPartyTransactionRate
      contextRef="From2024-09-022024-09-11_custom_GeneralSecurityAgreementMember_srt_ChiefExecutiveOfficerMember"
      decimals="INF"
      id="Fact001236"
      unitRef="Pure">0.10</us-gaap:RelatedPartyTransactionRate>
    <niobf:LineOfCreditFacilityEstablishmentFee
      contextRef="From2024-09-022024-09-11_custom_GeneralSecurityAgreementMember_srt_ChiefExecutiveOfficerMember"
      decimals="INF"
      id="Fact001237"
      unitRef="Pure">0.025</niobf:LineOfCreditFacilityEstablishmentFee>
    <us-gaap:OtherBorrowings
      contextRef="AsOf2024-10-30"
      decimals="-3"
      id="Fact001245"
      unitRef="USD">504000</us-gaap:OtherBorrowings>
    <us-gaap:LoanProcessingFee
      contextRef="From2024-11-012025-03-31_us-gaap_BorrowingsMember"
      decimals="-3"
      id="Fact001247"
      unitRef="USD">41000</us-gaap:LoanProcessingFee>
    <us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
      contextRef="AsOf2025-03-31_srt_ChiefExecutiveOfficerMember"
      decimals="-3"
      id="Fact001249"
      unitRef="USD">0</us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent>
    <us-gaap:LoanProcessingFee
      contextRef="From2024-07-012025-03-31_srt_ChiefExecutiveOfficerMember"
      decimals="-3"
      id="Fact001251"
      unitRef="USD">0</us-gaap:LoanProcessingFee>
    <niobf:ExplorationExpendituresDisclosuresTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001253">&lt;p id="xdx_802_ecustom--ExplorationExpendituresDisclosuresTextBlock_z9X8V6zwVRH5" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;
&lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;10.&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_82A_zdvbsf8JgLd6"&gt;Exploration
    Expenditures&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_892_ecustom--ScheduleOfExplorationExpendituresTableTextBlock_z8d27d3AMzGk" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8B0_zqMXYkeCwNzh" style="display: none; visibility: hidden"&gt;Schedule of exploration expenditures&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: left"&gt;&#160;Technical studies and engineering&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zqn76SA3Vwp1" style="width: 10%; text-align: right"&gt;107&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zqt7gtXnqb3b" style="width: 10%; text-align: right"&gt;53&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zFtrZoE22RY1" style="width: 10%; text-align: right"&gt;111&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zH3pd7rbvLB" style="width: 10%; text-align: right"&gt;350&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;&#160;Field management and other&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zlBwJiSdI354" style="text-align: right"&gt;315&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zh3vx74OO0qf" style="text-align: right"&gt;136&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zFvKqD4jKIU" style="text-align: right"&gt;616&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zTQK7rymxUHh" style="text-align: right"&gt;418&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&#160;Metallurgical development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zEVwbaliH8o9" style="text-align: right"&gt;73&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zQosTeO7bpWi" style="text-align: right"&gt;300&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_z0fzp6wgkMs1" style="text-align: right"&gt;167&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zgXv6ZLIez0e" style="text-align: right"&gt;1,630&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;&#160;Geologists and field staff&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zRasvG0TWRWh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1268"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zhzHSVgzVne8" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1269"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_z1WV5uCbnFpa" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1270"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zFrbBCbowgmk" style="border-bottom: Black 1pt solid; text-align: right"&gt;19&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331_z061eo97zL8i" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;495&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331_zNZ7O3E50Xxl" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;489&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331_zAuJ9yWz2Hef" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;894&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331_zNcd4sENVhSc" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;2,417&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A3_zYNhqAxKgT9g" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</niobf:ExplorationExpendituresDisclosuresTextBlock>
    <niobf:ScheduleOfExplorationExpendituresTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001255">&lt;p id="xdx_892_ecustom--ScheduleOfExplorationExpendituresTableTextBlock_z8d27d3AMzGk" style="margin-top: 0; margin-bottom: 0"&gt;&lt;span id="xdx_8B0_zqMXYkeCwNzh" style="display: none; visibility: hidden"&gt;Schedule of exploration expenditures&lt;/span&gt;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: left"&gt;&#160;Technical studies and engineering&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zqn76SA3Vwp1" style="width: 10%; text-align: right"&gt;107&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zqt7gtXnqb3b" style="width: 10%; text-align: right"&gt;53&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zFtrZoE22RY1" style="width: 10%; text-align: right"&gt;111&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--TechnicalStudiesAndEngineeringMember_zH3pd7rbvLB" style="width: 10%; text-align: right"&gt;350&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;&#160;Field management and other&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zlBwJiSdI354" style="text-align: right"&gt;315&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zh3vx74OO0qf" style="text-align: right"&gt;136&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zFvKqD4jKIU" style="text-align: right"&gt;616&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--FieldmanagementandotherMember_zTQK7rymxUHh" style="text-align: right"&gt;418&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&#160;Metallurgical development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zEVwbaliH8o9" style="text-align: right"&gt;73&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zQosTeO7bpWi" style="text-align: right"&gt;300&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_z0fzp6wgkMs1" style="text-align: right"&gt;167&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--MetallurgicaldevelopmentMember_zgXv6ZLIez0e" style="text-align: right"&gt;1,630&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;&#160;Geologists and field staff&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zRasvG0TWRWh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1268"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zhzHSVgzVne8" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1269"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_z1WV5uCbnFpa" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1270"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331__custom--CostCentreAxis__custom--GeologistAndFieldStaffMember_zFrbBCbowgmk" style="border-bottom: Black 1pt solid; text-align: right"&gt;19&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ExplorationExpense_pn3n3_c20250101__20250331_z061eo97zL8i" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;495&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ExplorationExpense_pn3n3_c20240101__20240331_zNZ7O3E50Xxl" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;489&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ExplorationExpense_pn3n3_c20240701__20250331_zAuJ9yWz2Hef" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;894&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ExplorationExpense_pn3n3_c20230701__20240331_zNcd4sENVhSc" style="border-bottom: Black 2pt solid; text-align: right" title="Exploration expenditures"&gt;2,417&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</niobf:ScheduleOfExplorationExpendituresTableTextBlock>
    <us-gaap:ExplorationExpense
      contextRef="From2025-01-012025-03-31_custom_TechnicalStudiesAndEngineeringMember"
      decimals="-3"
      id="Fact001256"
      unitRef="USD">107000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-01-012024-03-31_custom_TechnicalStudiesAndEngineeringMember"
      decimals="-3"
      id="Fact001257"
      unitRef="USD">53000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-07-012025-03-31_custom_TechnicalStudiesAndEngineeringMember"
      decimals="-3"
      id="Fact001258"
      unitRef="USD">111000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2023-07-012024-03-31_custom_TechnicalStudiesAndEngineeringMember"
      decimals="-3"
      id="Fact001259"
      unitRef="USD">350000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2025-01-012025-03-31_custom_FieldmanagementandotherMember"
      decimals="-3"
      id="Fact001260"
      unitRef="USD">315000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-01-012024-03-31_custom_FieldmanagementandotherMember"
      decimals="-3"
      id="Fact001261"
      unitRef="USD">136000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-07-012025-03-31_custom_FieldmanagementandotherMember"
      decimals="-3"
      id="Fact001262"
      unitRef="USD">616000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2023-07-012024-03-31_custom_FieldmanagementandotherMember"
      decimals="-3"
      id="Fact001263"
      unitRef="USD">418000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2025-01-012025-03-31_custom_MetallurgicaldevelopmentMember"
      decimals="-3"
      id="Fact001264"
      unitRef="USD">73000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-01-012024-03-31_custom_MetallurgicaldevelopmentMember"
      decimals="-3"
      id="Fact001265"
      unitRef="USD">300000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-07-012025-03-31_custom_MetallurgicaldevelopmentMember"
      decimals="-3"
      id="Fact001266"
      unitRef="USD">167000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2023-07-012024-03-31_custom_MetallurgicaldevelopmentMember"
      decimals="-3"
      id="Fact001267"
      unitRef="USD">1630000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2023-07-012024-03-31_custom_GeologistAndFieldStaffMember"
      decimals="-3"
      id="Fact001271"
      unitRef="USD">19000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001273"
      unitRef="USD">495000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001275"
      unitRef="USD">489000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001277"
      unitRef="USD">894000</us-gaap:ExplorationExpense>
    <us-gaap:ExplorationExpense
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001279"
      unitRef="USD">2417000</us-gaap:ExplorationExpense>
    <us-gaap:LesseeOperatingLeasesTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001281">&lt;p id="xdx_809_eus-gaap--LesseeOperatingLeasesTextBlock_zhOZieHdKOpg" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 0.25in; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;11.&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_822_zj5PdMK2AQn7"&gt;Leases&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;
&lt;p id="xdx_890_eus-gaap--LeaseCostTableTextBlock_z0peufoUfUU1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BB_zLHae58uLxYb"&gt;The
Company incurred lease costs as follows&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_493_20250101__20250331_ziA9SNuPEjm8" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_492_20240101__20240331_ztCiHkRJfC33" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_49E_20240701__20250331_zLxzxipe0z5d" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_497_20230701__20240331_zaDrTqjYyuV" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--LeaseCostAbstract_iB_zsBMAo7nudK6" style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Operating Lease Cost:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_401_ecustom--FixedRentExpense_pn3n3_zDgxJY9V5oGd" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: left"&gt;Fixed rent expense&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;24&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;23&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;70&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;68&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_401_eus-gaap--VariableLeaseCost_pn3n3_zYhsLsJZvVya" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Variable rent expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;4&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;3&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;10&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--ShortTermLeaseCost_pn3n3_zWcxkpt3hdz5" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Short-term lease cost&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--SubleaseIncome_iN_pn3n3_di_z1hQGzJAcNV5" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Sublease income&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(8&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(7&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(32&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(23&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--LeaseCost_pn3n3_zPLdVhXO42L2" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Lease cost &#x2013; other operating expense:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;22&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;21&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;56&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;62&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A8_zVYbeXF5goF6" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_zqf5LnvEflhi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span&gt;&lt;span id="xdx_8BD_zfr6vCfndjvc"&gt;The
maturities of lease liabilities are as follows as of March 31, 2025&lt;/span&gt;:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; padding-bottom: 1pt; padding-left: 10pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49A_20250331_zX2K6skfOOgg" style="border-bottom: Black 1pt solid; text-align: center"&gt;Future Lease Maturities&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_zFg1OALyJnBi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 77%; text-align: left"&gt;Total remaining lease payments&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;172&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40C_ecustom--LessAmountOfPaymentsRepresentingInterest_iI_pn3n3_zGdBlgJOSELl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: 4.5pt"&gt;Less portion of payments representing interest&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(22&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40D_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zhciloIvRqld" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Present value of lease payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;

&lt;tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityCurrent_iNI_pn3n3_di_zsUtLmxkyhN" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; width: 77%"&gt;&#160; Less current portion of lease payments&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; width: 10%"&gt;(98&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zV2dldReGd5d" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Non-current lease liability&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;52&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8A3_zUlnHnzOkMNf" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</us-gaap:LesseeOperatingLeasesTextBlock>
    <us-gaap:LeaseCostTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001283">&lt;p id="xdx_890_eus-gaap--LeaseCostTableTextBlock_z0peufoUfUU1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8BB_zLHae58uLxYb"&gt;The
Company incurred lease costs as follows&lt;/span&gt;:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify; text-indent: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: 0.5in; border-collapse: collapse; width: 94%"&gt;
&lt;tr style="display: none; vertical-align: bottom; visibility: hidden"&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_493_20250101__20250331_ziA9SNuPEjm8" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_492_20240101__20240331_ztCiHkRJfC33" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_49E_20240701__20250331_zLxzxipe0z5d" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_497_20230701__20240331_zaDrTqjYyuV" style="display: none; text-align: center; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;td style="display: none; visibility: hidden"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Three Months &lt;br/&gt;
Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;For the Nine Months &lt;br/&gt;Ended March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--LeaseCostAbstract_iB_zsBMAo7nudK6" style="vertical-align: bottom"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Operating Lease Cost:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2025&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;2024&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_401_ecustom--FixedRentExpense_pn3n3_zDgxJY9V5oGd" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 44%; text-align: left"&gt;Fixed rent expense&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;24&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;23&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;70&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;68&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_401_eus-gaap--VariableLeaseCost_pn3n3_zYhsLsJZvVya" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Variable rent expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;4&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;3&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;10&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--ShortTermLeaseCost_pn3n3_zWcxkpt3hdz5" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Short-term lease cost&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40F_eus-gaap--SubleaseIncome_iN_pn3n3_di_z1hQGzJAcNV5" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Sublease income&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(8&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(7&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(32&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(23&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40A_eus-gaap--LeaseCost_pn3n3_zPLdVhXO42L2" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Lease cost &#x2013; other operating expense:&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;22&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;21&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;56&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2pt solid; text-align: right"&gt;62&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:LeaseCostTableTextBlock>
    <niobf:FixedRentExpense
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001290"
      unitRef="USD">24000</niobf:FixedRentExpense>
    <niobf:FixedRentExpense
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001291"
      unitRef="USD">23000</niobf:FixedRentExpense>
    <niobf:FixedRentExpense
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001292"
      unitRef="USD">70000</niobf:FixedRentExpense>
    <niobf:FixedRentExpense
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001293"
      unitRef="USD">68000</niobf:FixedRentExpense>
    <us-gaap:VariableLeaseCost
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001295"
      unitRef="USD">4000</us-gaap:VariableLeaseCost>
    <us-gaap:VariableLeaseCost
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001296"
      unitRef="USD">3000</us-gaap:VariableLeaseCost>
    <us-gaap:VariableLeaseCost
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001297"
      unitRef="USD">11000</us-gaap:VariableLeaseCost>
    <us-gaap:VariableLeaseCost
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001298"
      unitRef="USD">10000</us-gaap:VariableLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001300"
      unitRef="USD">2000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001301"
      unitRef="USD">2000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001302"
      unitRef="USD">7000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001303"
      unitRef="USD">7000</us-gaap:ShortTermLeaseCost>
    <us-gaap:SubleaseIncome
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001305"
      unitRef="USD">8000</us-gaap:SubleaseIncome>
    <us-gaap:SubleaseIncome
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001306"
      unitRef="USD">7000</us-gaap:SubleaseIncome>
    <us-gaap:SubleaseIncome
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001307"
      unitRef="USD">32000</us-gaap:SubleaseIncome>
    <us-gaap:SubleaseIncome
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001308"
      unitRef="USD">23000</us-gaap:SubleaseIncome>
    <us-gaap:LeaseCost
      contextRef="From2025-01-012025-03-31"
      decimals="-3"
      id="Fact001310"
      unitRef="USD">22000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="From2024-01-012024-03-31"
      decimals="-3"
      id="Fact001311"
      unitRef="USD">21000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="From2024-07-01to2025-03-31"
      decimals="-3"
      id="Fact001312"
      unitRef="USD">56000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="From2023-07-012024-03-31"
      decimals="-3"
      id="Fact001313"
      unitRef="USD">62000</us-gaap:LeaseCost>
    <us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001315">&lt;p id="xdx_89A_eus-gaap--LesseeOperatingLeaseLiabilityMaturityTableTextBlock_zqf5LnvEflhi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span&gt;&lt;span id="xdx_8BD_zfr6vCfndjvc"&gt;The
maturities of lease liabilities are as follows as of March 31, 2025&lt;/span&gt;:&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; padding-bottom: 1pt; padding-left: 10pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49A_20250331_zX2K6skfOOgg" style="border-bottom: Black 1pt solid; text-align: center"&gt;Future Lease Maturities&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40B_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_zFg1OALyJnBi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 77%; text-align: left"&gt;Total remaining lease payments&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;172&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40C_ecustom--LessAmountOfPaymentsRepresentingInterest_iI_pn3n3_zGdBlgJOSELl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; text-indent: 4.5pt"&gt;Less portion of payments representing interest&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;(22&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_40D_eus-gaap--OperatingLeaseLiability_iI_pn3n3_zhciloIvRqld" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Present value of lease payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;

&lt;tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityCurrent_iNI_pn3n3_di_zsUtLmxkyhN" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; width: 77%"&gt;&#160; Less current portion of lease payments&lt;/td&gt;&lt;td style="padding-bottom: 1pt; width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left; width: 1%"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; width: 10%"&gt;(98&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; width: 1%"&gt;)&lt;/td&gt;&lt;/tr&gt;
&lt;tr id="xdx_404_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zV2dldReGd5d" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Non-current lease liability&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;52&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

</us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001317"
      unitRef="USD">172000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>
    <niobf:LessAmountOfPaymentsRepresentingInterest
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001319"
      unitRef="USD">-22000</niobf:LessAmountOfPaymentsRepresentingInterest>
    <us-gaap:OperatingLeaseLiability
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001321"
      unitRef="USD">150000</us-gaap:OperatingLeaseLiability>
    <us-gaap:OperatingLeaseLiabilityCurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001323"
      unitRef="USD">98000</us-gaap:OperatingLeaseLiabilityCurrent>
    <us-gaap:OperatingLeaseLiabilityNoncurrent
      contextRef="AsOf2025-03-31"
      decimals="-3"
      id="Fact001325"
      unitRef="USD">52000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:FairValueMeasurementInputsDisclosureTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001327">&lt;p id="xdx_80A_eus-gaap--FairValueMeasurementInputsDisclosureTextBlock_zKRrki3w1DVh" style="margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="margin: 0"&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 0.25in; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;12.&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_822_zeigfwW1Czob"&gt;Fair
Value Measurements&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;
&lt;p style="margin: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="margin: 0; text-align: justify"&gt;The
following tables present information about the assets and liabilities that are measured at fair value on a recurring basis as
of March 31, 2025, and June 30, 2024, respectively, and indicate the fair value hierarchy of the valuation techniques the Company
utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted)
in active markets for identical instruments. Fair values determined by Level 2 inputs utilize data points that are observable,
such as quoted prices, interest rates, and yield curves. Fair values determined by Level 3 inputs are unobservable data points
for the financial instrument and include situations where there is little, if any, market activity for the instrument.&lt;/p&gt;





&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;div style="text-align: left; margin-top: 3pt; margin-bottom: 3pt"&gt;&lt;/div&gt;



&lt;p id="xdx_89C_eus-gaap--FairValueByBalanceSheetGroupingTextBlock_z2pEMELI8Mvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span id="xdx_8B7_zDTl2bcgO51c" style="display: none; visibility: hidden"&gt;Schedule
of fair values determined by level 3 inputs are unobservable data&lt;/span&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="14" style="border-bottom: Black 1pt solid; text-align: center"&gt;As of March 31, 2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 3&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Assets:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.125in"&gt;Cash and cash equivalents&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331_zdiyKXjLtkdi" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;1,294&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHeIVvJiHWJ9" style="width: 10%; text-align: right"&gt;1,294&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zcyVGwhAZjT5" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1339"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zvekItnkrNh7" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1340"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Investment in equity securities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331_zdBKWq5xFIwi" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zGvCgxhqxNa" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zsBIrPsQqNaf" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1346"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zpstRb9AXiM" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1347"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331_zistUkSGf8Z8" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;1,297&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zH53tZ0NVQh7" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;1,297&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zO0HzQ2eGFRl" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1353"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zZivaiFlNyWh" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1355"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0.125in"&gt;Earnout Shares liability&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331_zLd7gyui2eR7" style="text-align: right" title="Earnout Shares liability"&gt;4,327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zbPHfnaPk951" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1358"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVN3olU6wsZ6" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1359"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_z38f964ctqM9" style="text-align: right" title="Earnout Shares liability"&gt;4,327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Warrant liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331_zgf1PL4BKWQd" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zzTdkRldV4dh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1364"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zC6dIggDzb3" style="border-bottom: Black 1pt solid; text-align: right"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zaHCCILWUcrl" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1367"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331_zXdx7qssR5M2" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;8,527&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zKT5u6lfezm3" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1370"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zDQ2ASIGLk0j" style="border-bottom: Black 2pt solid; text-align: right"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zWPzu14bgX7f" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;4,327&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="14" style="border-bottom: Black 1pt solid; text-align: center"&gt;As of June 30, 2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 3&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Assets:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.125in"&gt;Cash and cash equivalents&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630_zdXz9f3VjAof" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;2,012&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zIVCkIqGNPf6" style="width: 10%; text-align: right"&gt;2,012&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zW1k80Gc547i" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1377"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zifrs1LT55q9" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1379"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Investment in equity securities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630_zD58FkAIAEtf" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;4&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHwtXd9RxTZg" style="border-bottom: Black 1pt solid; text-align: right"&gt;4&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_ztMX86TPI8zc" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1383"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCFnjl5H5Is9" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1385"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630_zkLxYTHXzky1" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;2,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zt5i8EuvaITk" style="border-bottom: Black 2pt solid; text-align: right"&gt;2,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zCFLM8bV6FC3" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1389"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_ziKDz0seaLZk" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1391"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0.125in"&gt;April 2024 notes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630_z6EjW5iyUJw5" style="text-align: right" title="April 2024 notes"&gt;7,089&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zvLr0XSdwti2" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1394"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVXL5alYCXF7" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1395"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zmBXTcwRFBl8" style="text-align: right" title="April 2024 notes"&gt;7,089&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0.125in"&gt;Earnout Shares liability&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zz0jFDI9pVfj" style="text-align: right" title="Earnout Shares liability"&gt;3,817&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zijbJuXYgtS8" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1400"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zAVTjJ52v7U5" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1401"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zdgAmVFm36Hf" style="text-align: right" title="Earnout Shares liability"&gt;3,817&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Warrant liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630_zTM2kIsNUT32" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;4,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zgutku2SAYwh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1406"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zzmkwRINzu12" style="border-bottom: Black 1pt solid; text-align: right"&gt;1,651&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zQB0E68DM9n9" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;2,365&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zs366PrYRsO2" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;14,922&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zG24VUjh7hve" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1412"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z8hBjP8AiL5f" style="border-bottom: Black 2pt solid; text-align: right"&gt;1,651&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCmfEagoAwTf" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;13,271&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

&lt;p id="xdx_8AA_zyfD63a2iZEc" style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

</us-gaap:FairValueMeasurementInputsDisclosureTextBlock>
    <us-gaap:FairValueByBalanceSheetGroupingTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001335">&lt;p id="xdx_89C_eus-gaap--FairValueByBalanceSheetGroupingTextBlock_z2pEMELI8Mvl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in; text-align: justify"&gt;&lt;span id="xdx_8B7_zDTl2bcgO51c" style="display: none; visibility: hidden"&gt;Schedule
of fair values determined by level 3 inputs are unobservable data&lt;/span&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="14" style="border-bottom: Black 1pt solid; text-align: center"&gt;As of March 31, 2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 3&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Assets:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.125in"&gt;Cash and cash equivalents&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331_zdiyKXjLtkdi" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;1,294&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHeIVvJiHWJ9" style="width: 10%; text-align: right"&gt;1,294&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zcyVGwhAZjT5" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1339"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zvekItnkrNh7" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1340"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Investment in equity securities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331_zdBKWq5xFIwi" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zGvCgxhqxNa" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zsBIrPsQqNaf" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1346"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zpstRb9AXiM" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1347"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331_zistUkSGf8Z8" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;1,297&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zH53tZ0NVQh7" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;1,297&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zO0HzQ2eGFRl" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1353"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zZivaiFlNyWh" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1355"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0.125in"&gt;Earnout Shares liability&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331_zLd7gyui2eR7" style="text-align: right" title="Earnout Shares liability"&gt;4,327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zbPHfnaPk951" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1358"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVN3olU6wsZ6" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1359"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_z38f964ctqM9" style="text-align: right" title="Earnout Shares liability"&gt;4,327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Warrant liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331_zgf1PL4BKWQd" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zzTdkRldV4dh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1364"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zC6dIggDzb3" style="border-bottom: Black 1pt solid; text-align: right"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zaHCCILWUcrl" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1367"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331_zXdx7qssR5M2" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;8,527&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zKT5u6lfezm3" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1370"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zDQ2ASIGLk0j" style="border-bottom: Black 2pt solid; text-align: right"&gt;4,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20250331__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zWPzu14bgX7f" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;4,327&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;
&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="14" style="border-bottom: Black 1pt solid; text-align: center"&gt;As of June 30, 2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 1&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 2&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1pt solid; text-align: center"&gt;Level 3&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Assets:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 48%; text-align: left; padding-left: 0.125in"&gt;Cash and cash equivalents&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630_zdXz9f3VjAof" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;2,012&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zIVCkIqGNPf6" style="width: 10%; text-align: right"&gt;2,012&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zW1k80Gc547i" style="width: 10%; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1377"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--CashAndCashEquivalentsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zifrs1LT55q9" style="width: 10%; text-align: right" title="Cash and cash equivalents"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1379"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Investment in equity securities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630_zD58FkAIAEtf" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;4&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zHwtXd9RxTZg" style="border-bottom: Black 1pt solid; text-align: right"&gt;4&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_ztMX86TPI8zc" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1383"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--AvailableForSaleSecuritiesEquitySecuritiesOther_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCFnjl5H5Is9" style="border-bottom: Black 1pt solid; text-align: right" title="Investment in equity securities"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1385"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630_zkLxYTHXzky1" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;2,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zt5i8EuvaITk" style="border-bottom: Black 2pt solid; text-align: right"&gt;2,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zCFLM8bV6FC3" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1389"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--AssetsFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_ziKDz0seaLZk" style="border-bottom: Black 2pt solid; text-align: right" title="Total Assets"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1391"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0.125in"&gt;April 2024 notes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630_z6EjW5iyUJw5" style="text-align: right" title="April 2024 notes"&gt;7,089&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zvLr0XSdwti2" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1394"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zVXL5alYCXF7" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1395"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--NotesPayable_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zmBXTcwRFBl8" style="text-align: right" title="April 2024 notes"&gt;7,089&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0.125in"&gt;Earnout Shares liability&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zz0jFDI9pVfj" style="text-align: right" title="Earnout Shares liability"&gt;3,817&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zijbJuXYgtS8" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1400"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zAVTjJ52v7U5" style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1401"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--OtherLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zdgAmVFm36Hf" style="text-align: right" title="Earnout Shares liability"&gt;3,817&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in"&gt;Warrant liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630_zTM2kIsNUT32" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;4,016&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zgutku2SAYwh" style="border-bottom: Black 1pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1406"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_zzmkwRINzu12" style="border-bottom: Black 1pt solid; text-align: right"&gt;1,651&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--WarrantsNotSettleableInCashFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zQB0E68DM9n9" style="border-bottom: Black 1pt solid; text-align: right" title="Warrant liabilities"&gt;2,365&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630_zs366PrYRsO2" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;14,922&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_zG24VUjh7hve" style="border-bottom: Black 2pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1412"&gt;-&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_z8hBjP8AiL5f" style="border-bottom: Black 2pt solid; text-align: right"&gt;1,651&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2pt solid; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancialLiabilitiesFairValueDisclosure_iI_pn3n3_c20240630__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_zCmfEagoAwTf" style="border-bottom: Black 2pt solid; text-align: right" title="Total Liabilities"&gt;13,271&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

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    <niobf:MaterialCybersecurityIncidentNatureTextBlock contextRef="From2024-07-01to2025-03-31" id="Fact001417">&lt;p id="xdx_80F_ecustom--MaterialCybersecurityIncidentNatureTextBlock_zzOU8kSxUlX5" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 0.25in; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;13.&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_824_zw36maH7zOd5"&gt;CYBERSECURITY
INCIDENT&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
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&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
February 14, 2025, the Company became aware of unauthorized third-party access to its information systems, including portions
of its email systems, that resulted in misdirected vendor payments totaling approximately $506 (the &#x201c;cybersecurity incident&#x201d;).
The Company self-discovered the cybersecurity incident and promptly notified certain financial institutions and federal law enforcement
in an effort to, among other matters, recover the misdirected vendor payments. In addition, upon discovery of the cybersecurity
incident, the Company took steps to investigate, contain, assess, and remediate the cybersecurity incident. As a result of the
investigation, the Company determined that the cybersecurity incident was limited to the misdirected vendor payments noted above.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;To
date, the Company has not recovered any funds, and as a result, the Company recorded a one-time charge of $&lt;span id="xdx_90E_eus-gaap--OtherCostAndExpenseOperating_pn3n3_uUSD_c20250215__20250331_zxGRf8AOoVfa" title="Charge on operating expenses"&gt;506&lt;/span&gt; to other operating
expenses in the condensed consolidated statements of operations. Recoveries, if any, will be recognized as a gain in the period
that the funds are received. The Company incurred approximately $&lt;span id="xdx_90C_eus-gaap--ProfessionalFees_pn3n3_c20250215__20250331_zER3fFdDfgij"&gt;10&lt;/span&gt; in professional service fees in connection with the investigation
and initial remediation related to this incident.&lt;/span&gt;&lt;/p&gt;

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      decimals="-3"
      id="Fact001420"
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&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 0.25in; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;14.&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-transform: uppercase"&gt;&lt;span id="xdx_82B_z6PLpEbMQnLh"&gt;SUBSEQUENT
EVENTS&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;i&gt;The
April 2025 Offering&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span id="xdx_902_eus-gaap--SubsequentEventDescription_dxL_c20250421__20250422__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zAyLLicTNP1f" title="Subsequent event, description::XDX::On%20April%2017%2C%202025%2C%20Maxim%20partially%20exercised%20its%20over-allotment%20option%20to%20purchase%20323%2C504%20additional%20Common%20Shares%20at%20the%20closing.%20The%20gross%20proceeds%20from%20the%20April%202025%20Offering%20were%20approximately%20%2420%2C800%20before%20deducting%20underwriting%20discounts%20and%20offering%20expenses."&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1424"&gt;On
April 21, 2025, the Company closed an underwritten public offering (the &#x201c;April 2025 Offering&#x201d;), pursuant to the underwriting
agreement, dated April 17, 2025, with Maxim, as underwriter, pursuant to which the Company issued and sold (i) 6,628,846 Common
Shares at a public offering price of $2.60 per Common Share and (ii) 1,063,462 pre-funded Common Share Purchase Warrants (the
&#x201c;April 2025 Pre-Funded Warrants&#x201d;) to purchase up to an additional 1,063,462 Common Shares at a public offering price
of $2.5999. The April 2025 Pre-Funded Warrants have an exercise price of $0.0001 per underlying Common Share, are exercisable
immediately, and do not have an expiration date.&lt;/span&gt;&lt;/span&gt; On April 17, 2025, Maxim partially exercised its over-allotment option to purchase
323,504 additional Common &lt;/span&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;



&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;/span&gt;&lt;/p&gt;







&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;/p&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;

&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;/p&gt;





&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Shares at the closing. The gross proceeds from the April 2025 Offering were approximately $20,800 before
deducting underwriting discounts and offering expenses.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;The
Company intends to use the net proceeds from the April 2025 Offering for working capital and general corporate purposes, including
to advance its efforts to launch construction of the Elk Creek Project and move it to commercial production.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font: 10pt Times New Roman, Times, Serif"&gt;&#160;&lt;/span&gt;&lt;/p&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;Other
Equity Issuances&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
the period from April 1, 2025 through May 8, 2025, the Company issued Common Shares under the Yorkville Equity Facility Financing
Agreement and through the exercise of Warrants by their holders. As a result of these transactions, the Company received cash
totaling $&lt;span id="xdx_901_eus-gaap--ProceedsFromStockPlans_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zmGGh7KWdeH1" title="Cash received"&gt;3,599&lt;/span&gt; and issued &lt;span id="xdx_90E_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_c20250401__20250508__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zMlHsdiTQrPh" title="Issuance of common shares"&gt;1,568,694&lt;/span&gt; Common Shares.&lt;/span&gt;&lt;/p&gt;

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