<SEC-DOCUMENT>0001279569-17-001375.txt : 20170705
<SEC-HEADER>0001279569-17-001375.hdr.sgml : 20170705
<ACCEPTANCE-DATETIME>20170705114106
ACCESSION NUMBER:		0001279569-17-001375
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20170630
FILED AS OF DATE:		20170705
DATE AS OF CHANGE:		20170705

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NexGen Energy Ltd.
		CENTRAL INDEX KEY:			0001698535
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		IRS NUMBER:				840123707
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38072
		FILM NUMBER:		17946755

	BUSINESS ADDRESS:	
		STREET 1:		1021 WEST HASTINGS STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V6E 0C3
		BUSINESS PHONE:		(604) 428-4112

	MAIL ADDRESS:	
		STREET 1:		1021 WEST HASTINGS STREET
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V6E 0C3
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>nexgen6k.htm
<DESCRIPTION>FORM 6-K
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        <P STYLE="font: 16pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>UNITED STATES</B></P>
        <P STYLE="font: 16pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Washington, D.C. 20549</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>___________________</B></P>
        <P STYLE="font: 16pt Times New Roman, Times, Serif; margin: 6pt 0 0; text-align: center"><B>Form 6-K</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 6pt; text-align: center"><B>&nbsp;</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>REPORT OF FOREIGN PRIVATE ISSUER PURSUANT
        TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>For the month of June 2017</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>Commission File Number 001-38072</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><B>&nbsp;</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>___________________</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>NexGen Energy Ltd.</B></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center">Suite 3150, 1021 &ndash; West Hastings Street<BR>
        Vancouver, B.C., Canada V6E 0C3</P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>___________________</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">Indicate by check mark whether the registrant files or will file
        annual reports under cover of Form 20-F or Form 40-F.)</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center">Form 20-F <FONT STYLE="font-family: Wingdings 2">&#163;</FONT>&#9;Form
        40-F <FONT STYLE="font-family: Wingdings 2">R</FONT></P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">Indicate by check mark if the registrant is submitting the Form
        6-K in paper as permitted by Regulation S-T Rule 101(b)(1) <FONT STYLE="font-family: Wingdings 2">&#163;</FONT></P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">Indicate by check mark if the registrant is submitting the Form
        6-K in paper as permitted by Regulation S-T Rule 101(b)(7) <FONT STYLE="font-family: Wingdings 2">&#163;</FONT></P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-indent: 0.5in">.</P>
        <P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P></TD></TR>
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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>DOCUMENTS FILED AS PART OF THIS FORM 6-K</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">See the Exhibit Index hereto.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized, on June 30, 2017.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 3in; text-indent: 0.25in">&#9; </P>

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<TD>&nbsp;</TD><TD COLSPAN="2"><B>NEXGEN ENERGY LTD.</B></TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>&nbsp;</TD><TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>By:</TD><TD STYLE="border-bottom: Black 1pt solid">/s/ M. Joanna Cameron &#9;</TD></TR>
<TR STYLE="vertical-align: top">
<TD>&nbsp;</TD><TD>Name:</TD><TD>M. Joanna Cameron</TD></TR>
<TR STYLE="vertical-align: top">
<TD STYLE="width: 50%"></TD><TD STYLE="width: 8%">Title:</TD><TD STYLE="width: 42%">Vice President Legal and General Counsel</TD></TR></TABLE>

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<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>

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    <TD STYLE="width: 17%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-decoration: underline; text-align: center"><B><U>Exhibit</U></B></TD>
    <TD STYLE="width: 83%; padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold; text-decoration: underline"><B><U>Description</U></B></TD></TR>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; font-weight: bold">&nbsp;</TD></TR>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">99.1</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">News Release dated June 30, 2017</TD></TR>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">&nbsp;</TD></TR>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
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    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
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<FILENAME>ex991.htm
<DESCRIPTION>NEWS RELEASE DATED JUNE 30, 2017
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<P STYLE="margin: 0; text-align: right"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt"><B>Exhibit 99.1</B></FONT></P>

<P STYLE="margin: 0; text-align: right">&nbsp;</P>

<P STYLE="margin: 0; text-align: right">&nbsp;</P>

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<P STYLE="font: 12pt Arial, Helvetica, Sans-Serif; margin: 0pt 0 12pt"><B>NexGen Announces Additional US$110 Million Financing
with CEF Holdings</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">VANCOUVER, June 30, 2017 /CNW/ - NexGen Energy Ltd. (&quot;<B>NexGen</B>&quot;
or the &quot;<B>Company</B>&quot;) (<B>TSX:NXE, NYSE MKT:NXE</B>) is pleased to announce that it has entered into a binding term
sheet with CEF Holdings Limited (&quot;<B>CEF</B>&quot;) for a second financing package totalling US$110 million, comprising:</P>

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    <TD STYLE="padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(a)</FONT></TD>
    <TD STYLE="padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">US$50 million of common shares of NexGen (the &quot;<B>Placement Shares</B>&quot;); and </FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding: 1.5pt">&nbsp;</TD>
    <TD STYLE="padding: 1.5pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(b)</FONT></TD>
    <TD STYLE="padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">US$60 million aggregate principal amount of unsecured convertible debentures (the &quot;<B>New Debentures</B>&quot;).</FONT></TD></TR>
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<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">The US$50 million placement will result in the issuance of
approximately 24.1 million Placement Shares at a price of C$2.70 (US$2.07 at an exchange rate of 1.3060) per Placement Share representing
the 20-day VWAP of the Company's common shares (the &quot;<B>Common Shares</B>&quot;). The New Debentures will be convertible at
the holder's option into Common Shares at a conversion price (the &quot;<B>Conversion Price</B>&quot;) of C$3.52 (US$2.69 at an
exchange rate of 1.3060), equal to a 30% premium to the 20-day VWAP of the Common Shares. The &quot;20-day VWAP&quot; was calculated
as the volume weighted average trading price of the Common Shares on the Toronto Stock Exchange (the &quot;<B>TSX</B>&quot;) for
the 20 trading days ending on the day prior to the date of execution of the binding term sheet, converted into US$ using the C$-US$
daily average rate of exchange published by the Bank of Canada for each relevant date.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">In connection with the financing, the Company and CEF have
also agreed to extend the maturity date of the existing US$60 million aggregate principal amount of unsecured convertible debentures
(the &quot;<B>Existing Debentures</B>&quot;) to match the maturity date of the New Debentures as well as certain other non-financial
amendments including the strategic alignment provisions described below.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">Leigh Curyer, Chief Executive Officer of NexGen commented:
&quot;We are thrilled to build on the partnership between NexGen and CEF, which formally commenced just 12 months ago with the
initial investment of US$60 million. This financing represents a very strong alignment between NexGen and CEF and funds the Company
to expedite the optimal development of Arrow.&quot;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">&quot;Our investment today builds on the shared long-term
vision and close strategic partnership with NexGen,&quot; said CEF's Chief Executive Officer, Warren Gilman.&nbsp; &quot;NexGen
continues to deliver on all its objectives as it develops Arrow.&nbsp; We are excited at the opportunity to support the Company
in its goal of maximizing shareholder value by optimizing the development of Arrow which is proving to be one of the best mineral
assets we've encountered.&quot;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">The Existing Debentures, Placement Shares and New Debentures
are expected to be held by CEF (Capital Markets) Limited, a wholly-owned subsidiary of CEF (as to US$20 million principal amount
of Existing Debentures, US$25 million of the Placement Shares and US$20 million principal amount of New Debentures); and holding
companies (the &quot;<B>Li Investor</B>&quot;) of which each of Messrs. Li Ka Shing and his son Victor Li are entitled to exercise,
or control the exercise of, one-third or more of the voting power at general meetings (as to the balance of Existing Debentures,
Placement Shares and New Debentures).&nbsp; CEF (Capital Markets) Limited and the Li Investor are collectively referred to below
as the &quot;Investors&quot;.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>The Terms</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">The New Debentures will carry a 7.5% coupon (the &quot;<B>Interest</B>&quot;)
over a 5-year term. &nbsp;The New Debentures will be convertible at the holder's option into Common Shares at the Conversion Price
of C$3.52 (US$2.69 at an exchange rate of 1.3060), equal to a 30% premium to the 20-day VWAP ending on the day prior to the date
of execution of the binding term sheet.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">The Company will be entitled, on or after the third anniversary
of the date of the issuance of the New Debentures, at any time that the 20-day VWAP exceeds 130% of the Conversion Price, to redeem
the New Debentures at par plus accrued and unpaid Interest.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">Two-thirds of the Interest (equal to 5% per annum) is payable
in cash. One-third of the Interest (equal to 2.5% per annum) is payable in Common Shares issuable at a price equal to the 20-day
VWAP on either the TSX or NYSE MKT (whichever has the greatest trading volume of Common Shares) ending on the day prior to the
date such Interest payment is due.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Strategic Alignment Provisions</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">In consideration for the increased investment in NexGen, the
Company and the Investors will enter into an investor rights agreement (the &quot;<B>Investor Rights Agreement</B>&quot;). The
Investor Rights Agreement will provide for the following:</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%">
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    <TD STYLE="vertical-align: top; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(a)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">For so long as they hold at least 10% of the Common Shares (on a partially diluted basis), the Investors will agree (i) not to tender or agree to tender (or convert) the New Debentures or the Existing Debentures or any Common Shares they hold to an unsolicited takeover bid, (ii) to exercise the votes attached to all Common Shares they hold in respect of any change of control transaction, and deposit or tender such Common Shares, in accordance with the recommendation of the Company's Board of Directors (the &quot;<B>Board</B>&quot;), (iii) to withhold votes in respect of any Common Shares they hold in respect of the election of individuals to the Board who are not nominees of management, and (iv) in respect of non-change of control matters, not to exercise the votes attached to any Common Shares they hold contrary to the recommendation of the Board;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding: 1.5pt">&nbsp;</TD>
    <TD STYLE="padding: 1.5pt">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(b)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">For so long as they hold at least 10% of the Common Shares (on a partially diluted basis), the Investors will agree to a standstill whereby they will, among other things, not acquire any securities of the Company or solicit proxies or otherwise attempt to influence the conduct of security holders of the Company;</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding: 1.5pt">&nbsp;</TD>
    <TD STYLE="padding: 1.5pt">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(c)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">For so long as they hold at least 10% of the Common Shares (on a partially diluted basis), the Investors will be subject to restrictions on disposition applicable to any Common Shares they hold, consisting of giving prior notice to the Company of any proposed disposition of more than 0.5% of the number of Common Shares then outstanding and either: (i) disposing of such Common Shares to specific willing investors identified by the Company within a 7-day period; or (ii) disposing of such Common Shares either through a broad distribution on the public markets or in a private transaction or block trade to anyone other than specific investors identified by the Comany within the 7-day period; and</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding: 1.5pt">&nbsp;</TD>
    <TD STYLE="padding: 1.5pt">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">(d)</FONT></TD>
    <TD STYLE="vertical-align: bottom; padding: 1.5pt; font: 10pt Arial, Helvetica, Sans-Serif"><FONT STYLE="font-family: Arial, Helvetica, Sans-Serif; font-size: 8pt">For so long as they hold at least 15% of the Common Shares (on a partially diluted basis), the Investors will have the right to nominate one director to the Board.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Use of Proceeds</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">Including the proceeds from this financing, NexGen will have
cash reserves of approximately C$200 million. Proceeds from the financing will be used to fund the continuing exploration and development
of the Company's SW2 properties (which includes the Rook 1 project) and for general corporate purposes.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Approval</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">The financing is subject to the satisfaction of customary
closing conditions, including regulatory approval, the completion of definitive documentation, there being no material adverse
change in the business of the Company, or a major event of national or international consequence that disrupts the financial markets
or the business, operations or affairs of the Company.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Advisors</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">TD Securities Inc. is acting as financial advisor and lead
placement agent to NexGen and CIBC World Markets Inc. is acting as financial advisor to CEF.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>This news release shall not constitute an offer to sell
or a solicitation of any offer to buy any securities, nor shall there be any sale of any securities in any jurisdiction in which
such offer, solicitation or sale would be unlawful. The securities referenced herein have not been, nor will they be, registered
under the United States Securities Act of 1933, as amended (the &quot;<B>U.S. Securities Act</B>&quot;), and such securities may
not be offered or sold within the United States absent registration under the U.S. Securities Act or an applicable exemption from
the registration requirements thereunder.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Early Warning Disclosure</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">This portion of the news release is issued pursuant to National
Instrument 62-103 &ndash; <I>The Early Warning System and Related Take-Over Bid and Insider Reporting Issues</I> (&quot;<B>NI 62-103</B>&quot;)
of the Canadian Securities Administrators, which also requires an early warning report to be filed with the applicable securities
regulators containing additional information with respect to the foregoing matters. &nbsp;A copy of the early warning report of
the Li Investor will be available on NexGen's issuer profile on SEDAR at www.sedar.com.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">Following completion of this financing, the Li Investor will
hold: (a) an aggregate of 13,903,461 Common Shares, representing approximately 4.2% of the issued and outstanding Common Shares;
(b) US$40 million aggregate principal amount of Existing Debentures; and (c) US$40 million aggregate principal amount of New Debentures.&nbsp;
For the Placement Shares that partially gave rise to the early warning reporting requirements, the Li Investor paid C$2.70 per
share and C$32.597 million in aggregate.&nbsp;Immediately before this financing, the Li Investor holds 1,250,735 Common Shares,
representing approximately 0.4% of the issued and outstanding Common Shares as well as US$40 million aggregate principal amount
of the Existing Debenture. The Li Investor does not have any present intention to acquire ownership of, or control over, additional
securities of NexGen, other than pursuant to the terms of the New Debentures and Existing Debentures and the placement fee owing
in connection with this financing which will be paid in Common Shares at closing. It is the intention of the Li Investor to evaluate
its investment in NexGen on a continuing basis and such holdings may be increased or decreased in the future, subject to the strategic
alignment provisions. For the purposes of NI62-103 the head office address of the Li Investor is East Asia Chambers, P.O. Box 901,
Road Town, Torotola, British Virgin Islands and the head office address of the Company is 3150 &ndash; 1021 West Hastings Street,
Vancouver BC Canada V6E 0C3.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>About CEF Holdings Limited</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">CEF Holdings Limited is owned 50% by CK Hutchison Holdings
Ltd. and 50% by the Canadian Imperial Bank of Commerce (&quot;<B>CIBC</B>&quot;). CK Hutchison Holdings is the publicly-listed
flagship company of the CK Hutchison Group of companies, the Hong Kong based multi-national conglomerate with the combined market
cap of the Group in excess of US$100 billion. CIBC is a leading North American financial institution with operations around the
world. CEF is an investor in significant resource assets on a global basis.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>About NexGen</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">NexGen is a British Columbia corporation with a focus on the
acquisition, exploration and development of Canadian uranium projects. NexGen has a highly experienced team of uranium industry
professionals with a successful track record in the discovery of uranium deposits and in developing projects through discovery
to production.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">NexGen owns a portfolio of prospective uranium exploration
assets in the Athabasca Basin, Saskatchewan, Canada, including a 100% interest in Rook I, location of the Arrow Discovery in February
2014 and Bow Discovery in March 2015 and the Harpoon discovery in August 2016. The Arrow deposit's updated mineral resource estimate
with an effective date of December 20, 2016 was released in March 2017, and comprised 179.5 M lbs U3O8 contained in 1.18 M tonnes
grading 6.88% U3O8 in the indicated mineral resource category and an additional 122.1 M lbs U3O8 contained in 4.25 M tonnes grading
1.30% U3O8 in the inferred mineral resource category.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">All scientific and technical information in this news release
has been prepared by or reviewed and approved by Mr. Garrett Ainsworth, P.Geo., Vice President &ndash; Exploration &amp; Development
for NexGen. Mr. Ainsworth is a qualified person for the purposes of National Instrument 43-101 &ndash; <I>Standards of Disclosure
for Mineral Projects</I> (&quot;<B>NI 43-101</B>&quot;) of the Canadian Securities Administrators, and has verified the sampling,
analytical, and test data underlying the information or opinions contained herein by reviewing original data certificates and monitoring
all of the data collection protocols. For details of the Rook I Project including the quality assurance program and quality control
measures applied and key assumptions, parameters and methods used to estimate the mineral resource set forth herein please refer
to the technical report entitled &quot;Technical Report on the Rook 1 Property, Saskatchewan, Canada&quot; dated effective March
31, 2017 (the &quot;<B>Rook 1 Technical Report</B>&quot;) prepared by Mark B. Mathisen and David A. Ross, each of whom is a &quot;qualified
person&quot; under NI 43-101. The Rook I Technical Report is available on NexGen's issuer profile on SEDAR at www.sedar.com.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>U.S. investors are advised that while the terms &quot;indicated
resources&quot; and &quot;inferred resources&quot; are recognized and required by Canadian regulations, the U.S. Securities and
Exchange Commission does not recognize these terms. U.S. investors are cautioned not to assume that any part or all of the material
in these categories will ever be converted into mineral reserves.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><B>Forward-Looking Information</B></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>The information contained herein contains &quot;forward-looking
statements&quot; within the meaning of the United States Private Securities Litigation Reform Act of 1995 and &quot;forward-looking
information&quot; within the meaning of applicable Canadian securities legislation. &quot;Forward-looking information&quot; includes,
but is not limited to, statements with respect to the activities, events or developments that the Company expects or anticipates
will or may occur in the future, including, without limitation, the completion of the proposed financing, the use of proceeds from
the financing described in this news release, and the receipt of all required regulatory approvals, including of the TSX and the
NYSE MKT. Generally, but not always, forward-looking information and statements can be identified by the use of words such as &quot;plans&quot;,
&quot;expects&quot;, &quot;is expected&quot;, &quot;budget&quot;, &quot;scheduled&quot;, &quot;estimates&quot;, &quot;forecasts&quot;,
&quot;intends&quot;, &quot;anticipates&quot;, or &quot;believes&quot; or the negative connotation thereof or variations of such
words and phrases or state that certain actions, events or results &quot;may&quot;, &quot;could&quot;, &quot;would&quot;, &quot;might&quot;
or &quot;will be taken&quot;, &quot;occur&quot; or &quot;be achieved&quot; or the negative connotation thereof.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>Forward-looking information and statements are based on
the then current expectations, beliefs, assumptions, estimates and forecasts about NexGen's business and the industry and markets
in which it operates. Forward-looking information and statements are made based upon numerous assumptions, including among others,
that the proposed transaction will be completed, the results of planned exploration activities are as anticipated, the price of
uranium, the cost of planned exploration activities, that financing will be available if and when needed and on reasonable terms,
that third party contractors, equipment, supplies and governmental and other approvals required to conduct NexGen's planned exploration
activities will be available on reasonable terms and in a timely manner and that general business and economic conditions will
not change in a material adverse manner. Although the assumptions made by the Company in providing forward looking information
or making forward looking statements are considered reasonable by management at the time, there can be no assurance that such assumptions
will prove to be accurate.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>Forward-looking information and statements also involve
known and unknown risks and uncertainties and other factors, which may cause actual results, performances and achievements of NexGen
to differ materially from any projections of results, performances and achievements of NexGen expressed or implied by such forward-looking
information or statements, including, among others, negative operating cash flow and dependence on third party financing, uncertainty
of the availability of additional financing, the risk that pending assay results will not confirm previously announced preliminary
results, imprecision of mineral resource estimates, the appeal of alternate sources of energy and sustained low uranium prices,
aboriginal title and consultation issues, exploration risks, reliance upon key management and other personnel, deficiencies in
the Company's title to its properties, uninsurable risks, failure to manage conflicts of interest, failure to obtain or maintain
required permits and licenses, changes in laws, regulations and policy, competition for resources and financing, specific risks
relating to the negotiation and execution of the definitive agreements for the financing, the use of proceeds from the financing,
the satisfaction of each party's obligations in accordance with the terms of the definitive agreements for the financing; failure
to receive any required regulatory approvals (including stock exchange) or other approvals, and other factors discussed or referred
to in the Company's Annual Information Form dated March 31, 2017 under &quot;Risk Factors&quot;.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>Although the Company has attempted to identify important
factors that could cause actual results to differ materially from those contained in the forward-looking information or implied
by forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0"><I>There can be no assurance that forward-looking information
and statements will prove to be accurate, as actual results and future events could differ materially from those anticipated, estimated
or intended. Accordingly, readers should not place undue reliance on forward-looking statements or information. The Company undertakes
no obligation to update or reissue forward-looking information as a result of new information or events except as required by applicable
securities laws.</I></P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">SOURCE NexGen Energy Ltd.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">View original content: http://www.newswire.ca/en/releases/archive/June2017/30/c7245.html</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">%CIK: 0001698535</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 0"><B>For further information:</B> Leigh Curyer, Chief Executive Officer,
NexGen Energy Ltd., +1 604 428 4112, lcuryer@nxe-energy.ca, www.nexgenenergy.ca; Travis McPherson, Vice President Corporate Development,
NexGen Energy Ltd., +1 604 428 4112, tmcpherson@ nxe-energy.ca, www.nexgenenergy.ca</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">CO: NexGen Energy Ltd.</P>

<P STYLE="font: 10pt Arial, Helvetica, Sans-Serif; margin: 9.75pt 0">CNW 06:30e 30-JUN-17</P>



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