<SEC-DOCUMENT>0001558370-21-005543.txt : 20210503
<SEC-HEADER>0001558370-21-005543.hdr.sgml : 20210503
<ACCEPTANCE-DATETIME>20210503165458
ACCESSION NUMBER:		0001558370-21-005543
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		13
CONFORMED PERIOD OF REPORT:	20210430
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20210503
DATE AS OF CHANGE:		20210503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESABI TRUST
		CENTRAL INDEX KEY:			0000065172
		STANDARD INDUSTRIAL CLASSIFICATION:	MINERAL ROYALTY TRADERS [6795]
		IRS NUMBER:				136022277
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			0131

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04488
		FILM NUMBER:		21884380

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 318 CHURCH ST STATION
		STREET 2:		C/O BANKERS TRUST CO CORP TRUST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10008-0318
		BUSINESS PHONE:		2122506519

	MAIL ADDRESS:	
		STREET 1:		C/O BANKERS TRUST COMPANY, CORPORATE
		STREET 2:		P.O. BOX 318 CHURCH STREET STATION
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10008-0318
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>msb-20210430x8k.htm
<DESCRIPTION>8-K
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5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:34.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="Tc_LvsDm7TmR0iYlWZZ4oICjg_1_0"><b style="font-weight:bold;">New York</b></ix:nonNumeric></p></td><td style="vertical-align:bottom;width:33.03%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><ix:nonNumeric 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style="vertical-align:bottom;width:58.66%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:13.6pt;text-align:center;margin:0pt;"><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" name="dei:EntityAddressAddressLine1" id="Narr_3MhYR9YCaUWt7sHtpQAzeg"><b style="font-weight:bold;">c/o Deutsche Bank Trust Company Americas</b></ix:nonNumeric><b style="font-weight:bold;"> <br /></b><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" name="dei:EntityAddressAddressLine2" id="Narr_7GjfUPxCSkKyr6WlLAph4Q"><b style="font-weight:bold;">Trust &amp; Agency Services</b></ix:nonNumeric><b style="font-weight:bold;"> <br /></b><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" name="dei:EntityAddressAddressLine3" id="Narr_6SArEuWzUkqCxnEKj1diUA"><b style="font-weight:bold;">60 Wall Street, 24th Floor</b></ix:nonNumeric><b style="font-weight:bold;"> <br 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style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:6pt 0pt 6pt 0pt;">Securities registered pursuant to Section 12(b) of the Act:</p><a id="_8b724350_b184_4c2a_9cf0_47dbbbccec8f"></a><a id="Tc_7hSNP_aETEmtPD6gYx6dmA_1_0"></a><a id="Tc_cGzpB0GIv0qxA4UDhPyjug_1_1"></a><a id="Tc_eWFzuoQDaUar77pcEqDEYQ_1_2"></a><table style="border-collapse:collapse;font-size:16pt;height:max-content;width:100%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:41.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:bottom;width:20.61%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:37.55%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;">&#8203;</span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:41.82%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Title of each class</b></p></td><td style="vertical-align:bottom;width:20.61%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Trading Symbol(s)</b></p></td><td style="vertical-align:bottom;width:37.55%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">Name of each exchange on </b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">which registered</b></p></td></tr><tr><td style="vertical-align:top;width:41.82%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 2.2pt 0pt;"><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" name="dei:Security12bTitle" id="Tc_Nt6N529EAkqXCDb-nkWtTw_2_0">Units of Beneficial Interest, no par value</ix:nonNumeric></p></td><td style="vertical-align:top;width:20.61%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 2.2pt 0pt;"><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" name="dei:TradingSymbol" id="Tc_nV2xU-fmmUy_HiOZccyGTw_2_1">MSB</ix:nonNumeric></p></td><td style="vertical-align:top;width:37.55%;border-bottom:1px solid #000000;border-left:1px solid #000000;border-right:1px solid #000000;border-top:1px solid #000000;margin:0pt;padding:0pt 5.15pt 0pt 5.15pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt 0pt 2.2pt 0pt;"><ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="Tc_zDC5jEiiikKv5yxIQoTk3g_2_2"><span style="white-space:pre-wrap;">New York Stock Exchange  </span></ix:nonNumeric></p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:8pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter). </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;min-height:1.0pt;text-align:right;margin:0pt 0pt 6pt 0pt;">Emerging growth company <ix:nonNumeric contextRef="Duration_4_30_2021_To_4_30_2021_AFTqGL5TjkCZslnHfzTKeA" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="Narr_7AMSNKexUUeWpiITNbMxlg"><span style="font-family:'Segoe UI Symbol';">&#9744;</span></ix:nonNumeric></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="white-space:pre-wrap;">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><span style="font-family:'Segoe UI Symbol';">&#9744;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;padding-bottom:1pt;border-bottom:2.25pt solid #000000;margin:0pt;"><span style="font-family:'Segoe UI Symbol';font-size:4pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:4pt;visibility:hidden;">&#8203;</span></p><p style="display:none;font-family:'Times New Roman','Times','serif';line-height:0pt;margin:0pt;"><span style="font-size:0pt;visibility:hidden;">&#8203;</span></p><a id="_c4120825_a9c2_4ed5_a49b_dbfd04026d4f"></a></div><div style="clear:both;margin-bottom:28.8pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:82.35%;border:0;margin:30pt 8.71% 30pt 8.94%;"></div><div style="max-width:100%;padding-left:8.94%;padding-right:8.71%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;"><span style="display:inline-block;text-indent:0pt;width:72pt;"><b style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:bold;text-align:left;">Item 2.02</b></span>Results of Operations and Financial Condition.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><i style="font-style:italic;text-decoration:underline;text-decoration-color:#000000;">Announcement of Receipt of Royalty Report and Royalty Payment </i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><span style="font-size:12.45pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;">On May 3, 2021, Mesabi Trust issued a press release announcing that Mesabi Trust received the quarterly royalty report of iron ore shipments out of Silver Bay, Minnesota during the quarter ended March 31, 2021 (the &#8220;Royalty Report&#8221;) from Cleveland-Cliffs Inc. (&#8220;Cliffs&#8221;), the parent company of Northshore Mining Company (&#8220;Northshore&#8221;), and received a royalty payment as summarized below.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><span style="font-size:12.45pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;">A copy of the press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><span style="font-family:'Times New Roman Bold';font-size:12.45pt;font-weight:bold;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><span style="display:inline-block;text-indent:0pt;width:68.4pt;"><b style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:bold;line-height:12.45pt;text-align:left;">Item 7.01</b></span><b style="font-weight:bold;">Regulation FD.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><span style="font-family:'Times New Roman Bold';font-size:12.45pt;font-weight:bold;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.45pt;margin:0.69pt 3.6pt 0pt 3.6pt;"><i style="font-style:italic;text-decoration:underline;text-decoration-color:#000000;">Quarterly Royalty Report</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.14pt 3.6pt 0pt 3.6pt;">On April 30, 2021, the Trustees of Mesabi Trust received the Royalty Report from Cliffs, the parent company of Northshore.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;"><span style="font-size:12.65pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;">As reported to Mesabi Trust by Cliffs in the Royalty Report, based on shipments of iron ore products by Northshore during the three months ended March 31, 2021, Mesabi Trust was credited with a base royalty of $3,048,457<b style="font-weight:bold;">.</b> &#160;For the three months ended March 31, 2021, Mesabi Trust was also credited with a bonus royalty in the amount of<b style="font-weight:bold;"> </b>$3,658,148. The royalty also included a reduction of $557,016 as a result of negative pricing adjustments to base and bonus royalty calculations related to changes in price estimates made in prior quarters. &#160;In addition, a royalty payment of $190,443 was paid to the Mesabi Land Trust. &#160;Accordingly, the total royalty payments received by Mesabi Trust on April 30, 2021 from Cliffs were $6,340,032.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.6pt 3.6pt 0pt 3.6pt;">The royalties paid to Mesabi Trust are based on the volume of shipments of iron ore pellets for the quarter and the year to date, the pricing of iron ore product sales, and the percentage of iron ore pellet shipments from Mesabi Trust lands rather than from non-Mesabi Trust lands. &#160;In the first calendar quarter of 2021, Cliffs credited Mesabi Trust with 919,457 tons of iron ore shipped, as compared to 340,617 tons shipped during the first calendar quarter of 2020.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.35pt 3.6pt 0pt 3.6pt;">The volume of shipments of iron ore pellets (and other iron ore products) by Northshore varies from quarter to quarter and year to year based on a number of factors, including the requested delivery schedules of customers, general economic conditions in the iron ore industry, and weather conditions on the Great Lakes. &#160;Further, the prices under the term contracts among Northshore, Cliffs, and certain of their customers (the &#8220;Cliffs Pellet Agreements&#8221;), to which Mesabi Trust is not a party, are subject to interim and final pricing adjustments, dependent in part on multiple price and inflation index factors, some of which are not known until after the end of a contract year. &#160;The factors that could result in price adjustments under Cliffs&#8217; customer contracts include changes in the Platts Prices, hot-rolled coil steel price, the Atlantic Basin pellet premium, published Platts international indexed freight rates and changes in specified producer price indices, including those for industrial commodities, fuel and steel. &#160;These multiple factors can result in significant variations in royalties received by Mesabi Trust (and in turn, the resulting funds available for distribution to Unitholders by Mesabi Trust) from quarter to quarter and from year to year. &#160;These variations, which can be positive or negative, cannot be predicted by the Trustees of Mesabi Trust. &#160;Royalty payments anticipated to be received during the current year will continue to reflect pricing estimates for shipments of iron ore products that will be subject to positive or negative pricing adjustments pursuant to the Cliffs Pellet Agreements. &#160;Based on the above factors, and as indicated by Mesabi Trust&#8217;s historical distribution payments, the royalties received by Mesabi Trust, and the distributions paid to Unitholders, if any, in any particular quarter are not necessarily indicative of royalties that will be received, or distributions that will be paid, if any, in any subsequent quarter or full year.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.44pt 3.6pt 0pt 3.6pt;">With respect to calendar year 2021, Northshore has not advised Mesabi Trust of its expected shipments of iron ore products, or what percentage of 2021 shipments will be from Mesabi Trust iron ore. &#160;In the Cliffs&#8217; Royalty Report, Cliffs stated that the royalty payments being reported today were based on estimated iron ore pellet prices under the Cliffs Pellet Agreements, which are subject to change. &#160;It is possible that future negative price adjustments could offset, or even eliminate, royalties or </p></div><div style="clear:both;display:table;margin-bottom:28.8pt;min-height:43.2pt;width:100%;"><div style="display:table-cell;vertical-align:bottom;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;">1</p></div></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:82.35%;border:0;margin:30pt 8.71% 30pt 8.94%;"></div><div style="max-width:100%;padding-left:8.94%;padding-right:8.71%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;">royalty income that would otherwise be payable to Mesabi Trust in any particular quarter, or at year end, thereby potentially reducing cash available for distribution to Mesabi Trust&#8217;s Unitholders in future quarters.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.44pt 3.6pt 0pt 3.6pt;"><b style="font-weight:bold;">Forward-looking Statements</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.6pt;text-align:justify;margin:12.75pt 3.6pt 0pt 3.6pt;">This report contains certain forward-looking statements with respect to iron ore pellet production, iron ore pricing and adjustments to pricing, shipments by Northshore in 2021, royalty (including bonus royalty) amounts, and other matters, which statements are intended to be made under the safe harbor protections of the Private Securities Litigation Reform Act of 1995, as amended. &#160;Actual production, prices, price adjustments, and shipments of iron ore pellets, as well as actual royalty payments (including bonus royalties) could differ materially from current expectations due to inherent risks and uncertainties such as general adverse business and industry economic trends, uncertainties arising from war, terrorist events, the impact of the coronavirus (COVID-19) pandemic and other global events, higher or lower customer demand for steel and iron ore, decisions by mine operators regarding curtailments or idling production lines or entire plants, environmental compliance uncertainties, difficulties in obtaining and renewing necessary operating permits, higher imports of steel and iron ore substitutes, processing difficulties, consolidation and restructuring in the domestic steel market, market inputs tied to indexed price adjustment factors found in Cliffs Pellet Agreements resulting in future adjustments to royalties payable to Mesabi Trust and other factors. &#160;Further, substantial portions of royalties earned by Mesabi Trust are based on estimated prices that are subject to interim and final adjustments, which can be positive or negative, and are dependent in part on multiple price and inflation index factors under agreements to which Mesabi Trust is not a party and that are not known until after the end of a contract year. &#160;Although the Mesabi Trustees believe that any such forward-looking statements are based on reasonable assumptions, such statements are subject to risks and uncertainties, which could cause actual results to differ materially. &#160;Additional information concerning these and other risks and uncertainties is contained in Mesabi Trust&#8217;s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the fiscal year ended January 31, 2021 (filed April 27, 2021). &#160;Mesabi Trust undertakes no obligation to publicly update or revise any of the forward-looking statements made herein to reflect events or circumstances after the date hereof.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:12.65pt;text-align:justify;margin:12.69pt 3.6pt 0pt 0pt;">In accordance with general instruction B.2 to Form 8-K, the information in this Form 8-K shall not be deemed to be &#8220;filed&#8221; for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;"><span style="display:inline-block;text-indent:0pt;width:72pt;"><b style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:bold;text-align:left;">Item 9.01</b></span>Financial Statements and Exhibits.</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;"><span style="display:inline-block;text-indent:0pt;width:18pt;"><span style="color:#000000;font-family:'Times New Roman','Times','serif';font-size:11pt;font-style:normal;font-weight:normal;text-align:left;">(d)</span></span><i style="font-style:italic;">Exhibits</i>.</p><div style="padding-left:59.4pt;"><table style="border-collapse:collapse;font-size:16pt;height:max-content;table-layout:auto;width:83.18%;"><tr style="height:1pt;"><th style="font-weight:normal;text-align:left;vertical-align:top;width:17.17%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></th><th style="font-weight:normal;text-align:left;vertical-align:top;width:82.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></th></tr><tr><th style="font-weight:normal;text-align:left;vertical-align:top;width:17.17%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;padding-bottom:1pt;text-indent:0pt;border-bottom:1px solid #000000;margin:0pt;"><b style="font-weight:bold;">Exhibit No.</b></p></th><th style="font-weight:normal;text-align:left;vertical-align:top;width:82.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;padding-bottom:1pt;text-indent:0pt;border-bottom:1px solid #000000;margin:0pt;"><b style="font-weight:bold;">Description</b></p></th></tr><tr><td style="vertical-align:top;width:17.17%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-indent:0pt;margin:0pt;">99.1</p></td><td style="vertical-align:top;width:82.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><a style="-sec-extract:exhibit;" href="msb-20210430xex99d1.htm"><span style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;text-align:left;">Press Release dated May 3, 2021</span></a></p></td></tr><tr><td style="vertical-align:top;width:17.17%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-indent:0pt;margin:0pt;"><span style="font-size:11pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:82.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:17.17%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-indent:0pt;margin:0pt;">104</p></td><td style="vertical-align:top;width:82.82%;margin:0pt;padding:0pt 5.4pt 0pt 5.4pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Cover Page Interactive Data File (formatted in Inline XBRL and included as Exhibit 101)</p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p><a id="_a2382562_cd3e_4588_a909_af7388c663ab"></a></div><div style="clear:both;display:table;margin-bottom:28.8pt;min-height:43.2pt;width:100%;"><div style="display:table-cell;vertical-align:bottom;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;">2</p></div></div></div>
<div style="background-color:#000000;clear:both;height:2pt;page-break-after:always;width:82.35%;border:0;margin:30pt 8.71% 30pt 8.94%;"></div><div style="max-width:100%;padding-left:8.94%;padding-right:8.71%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;text-align:center;margin:0pt 0pt 12pt 0pt;">SIGNATURE</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;width:100%;"><tr style="height:1pt;"><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div></div></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td><td style="vertical-align:top;width:43.38%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="position:absolute;top:0pt;width:100%;"></div></div></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;font-weight:bold;margin:0pt;"><span style="font-size:10pt;margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td colspan="2" style="vertical-align:top;width:47.09%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt;">MESABI TRUST</p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td><td colspan="2" style="vertical-align:top;width:47.09%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">By:</p></td><td style="vertical-align:top;width:43.38%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">/s/ Jeffrey Schoenfeld</p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:43.38%;border-top:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Jeffrey Schoenfeld</p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:43.38%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Vice President</p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:43.38%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Deutsche Bank Trust Company Americas,</p></td></tr><tr><td style="vertical-align:top;width:52.9%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:3.71%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><span style="margin-bottom:12pt;visibility:hidden;">&#8203;</span></p></td><td style="vertical-align:top;width:43.38%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Corporate Trustee of Mesabi Trust</p></td></tr></table><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:12pt 0pt 12pt 0pt;">Dated: May&#160;3, 2021</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;">&#8203;</span></p></div><div style="clear:both;display:table;margin-bottom:28.8pt;min-height:43.2pt;width:100%;"><div style="display:table-cell;vertical-align:bottom;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;">3</p></div></div></div>
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<!--Enhanced HTML document created with Toppan Merrill Bridge  9.10.0.88--><!--Created on: 5/3/2021 08:54:34 PM (UTC)--><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta charset="UTF-8"><title></title></head><body><div style="margin-top:30pt;"></div><div style="max-width:100%;padding-left:8.82%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:right;text-indent:36pt;margin:0.05pt 0pt 25.1pt 0pt;"><b style="font-weight:bold;">EXHIBIT 99.1</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:center;margin:0pt;"><b style="font-weight:bold;text-decoration:underline;text-decoration-color:#000000;">MESABI TRUST PRESS RELEASE</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;">New York, New York</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;">May 3, 2021</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;">On April 30, 2021, the Trustees of Mesabi Trust (NYSE: MSB) received the quarterly royalty report of iron ore shipments from Silver Bay, Minnesota during the quarter ended March 31, 2021 (the &#8220;Royalty Report&#8221;) from Cleveland-Cliffs Inc. (&#8220;Cliffs&#8221;), the parent company of Northshore Mining Company (&#8220;Northshore&#8221;).</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;"><font style="font-size:12.65pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;">As reported to Mesabi Trust by Cliffs in the Royalty Report, based on shipments of iron ore products by Northshore during the three months ended March 31, 2021, Mesabi Trust was credited with a base royalty of $3,048,457. &#160;For the three months ended March 31, 2021, Mesabi Trust was also credited with a bonus royalty in the amount of $3,658,148. The royalty also included a reduction of $557,016 as a result of negative pricing adjustments to base and bonus royalty calculations related to changes in price estimates made in prior quarters. &#160; In addition, a royalty payment of $190,443 was paid to the Mesabi Land Trust. &#160;Accordingly, the total royalty payments received by Mesabi Trust on April 30, 2021 from Cliffs were $6,340,032.</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:12.6pt 3.6pt 0pt 3.6pt;">The royalties paid to Mesabi Trust are based on the volume of shipments of iron ore pellets for the quarter and the year to date, the pricing of iron ore product sales, and the percentage of iron ore pellet shipments from Mesabi Trust lands rather than from non-Mesabi Trust lands. &#160;In the first calendar quarter of 2021, Cliffs credited Mesabi Trust with 919,457 tons of iron ore shipped, as compared to 340,617  tons shipped during the first calendar quarter of 2019.</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:12.35pt 3.6pt 0pt 3.6pt;">The volume of shipments of iron ore pellets (and other iron ore products) by Northshore varies from quarter to quarter and year to year based on a number of factors, including the requested delivery schedules of customers, general economic conditions in the iron ore industry, and weather conditions on the Great Lakes. &#160;Further, the prices under the term contracts among Northshore, Cliffs, and certain of their customers (the &#8220;Cliffs Pellet Agreements&#8221;), to which Mesabi Trust is not a party, are subject to interim and final pricing adjustments, dependent in part on multiple price and inflation index factors, some of which are not known until after the end of a contract year. &#160;The factors that could result in price adjustments under Cliffs&#8217; customer contracts include changes in the Platts Prices, hot-rolled coil steel price, the Atlantic Basin pellet premium, published Platts international indexed freight rates and changes in specified producer price indices, including those for industrial commodities, fuel and steel. &#160;These multiple factors can result in significant variations in royalties received by Mesabi Trust (and in turn, the resulting funds available for distribution to Unitholders by Mesabi Trust) from quarter to quarter and from year to year. &#160;These variations, which can be positive or negative, cannot be predicted by the Trustees of Mesabi Trust. &#160;Royalty payments anticipated to be received during the current year will continue to reflect pricing estimates for shipments of iron ore products that will be subject to positive or negative pricing adjustments pursuant to the Cliffs Pellet Agreements. &#160;Based on the above factors, and as indicated by Mesabi Trust&#8217;s historical distribution payments, the royalties received by Mesabi Trust, and the distributions paid to Unitholders, if any, in any particular quarter are not necessarily indicative of royalties that will be received, or distributions that will be paid, if any, in any subsequent quarter or full year.</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:12.44pt 3.6pt 0pt 3.6pt;">With respect to calendar year 2021, Northshore has not advised Mesabi Trust of its expected shipments of iron ore products, or what percentage of 2021 shipments will be from Mesabi Trust iron ore. &#160;In the Cliffs&#8217; Royalty Report, Cliffs stated that the royalty payments being reported today were based on estimated iron ore pellet prices under the Cliffs Pellet Agreements, which are subject to change. &#160;It is possible that future negative price adjustments could offset, or even eliminate, royalties or royalty income that would otherwise be payable to Mesabi </p></div><div style="clear:both;display:table;margin-bottom:30pt;min-height:36pt;width:100%;"><div style="display:table-cell;vertical-align:bottom;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:center;margin:24pt 0pt 0pt 0pt;">1</p></div></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:8.82%;margin-right:8.82%;margin-top:30pt;page-break-after:always;width:82.35%;border-width:0;"><div style="max-width:100%;padding-left:8.82%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;line-height:12.65pt;text-align:justify;margin:0pt 3.6pt 0pt 3.6pt;">Trust in any particular quarter, or at year end, thereby potentially reducing cash available for distribution to Mesabi Trust&#8217;s Unitholders in future quarters.</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="letter-spacing:-0.25pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;"><b style="font-weight:bold;text-decoration:underline;text-decoration-color:#000000;">Other Available Information </b></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;">Mesabi Trust&#8217;s Annual Report on Form&#160;10-K for the fiscal&#160;year ended January&#160;31, 2021, which includes the audited financial statements of Mesabi Trust, was filed with the Securities and Exchange Commission on April&#160;27, 2021. Mesabi Trust Unitholders may obtain a hard copy of the complete audited financial statements, which is included as Exhibit&#160;13 to Mesabi Trust&#8217;s Annual Report, free of charge upon request to Mesabi Trust&#8217;s Corporate Trustee, at: </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">Mesabi Trust</p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">c/o Deutsche Bank Trust Company Americas, Corporate Trustee </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">Trust&#160;&amp; Securities Services&#160;&#8212; GDS </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">60 Wall Street, 24th Floor </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">New York, NY 10005 </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt 0pt 0pt 36pt;">(904) 271-2520 </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;">&#160; </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;">Unitholders can also directly access the audited financial statements of Mesabi Trust by navigating to Mesabi Trust&#8217;s website at <u style="color:#0000ff;text-decoration:underline;text-decoration-color:#0000ff;">www.Mesabi-Trust.com</u> and clicking on the Edgar Filings (SEC) link under the Menu to the right of the SEC Filings page&#160;by scrolling down to the desired Annual Report on Form&#160;10-K under Exhibit&#160;13 thereof, beginning on page&#160;F-1 of each such Report. </p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="letter-spacing:-0.25pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;min-height:18.0pt;margin:0pt;"><b style="color:#444444;font-weight:bold;text-decoration:underline;text-decoration-color:#444444;">Forward-Looking Statements</b><u style="color:#444444;text-decoration:underline;text-decoration-color:#444444;"> </u></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;min-height:18.0pt;margin:0pt;"><font style="color:#444444;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:justify;margin:0pt;">This report contains certain forward-looking statements with respect to iron ore pellet production, iron ore pricing and adjustments to pricing, shipments by Northshore in 2020 and 2021, royalty (including bonus royalty) amounts, and other matters, which statements are intended to be made under the safe harbor protections of the Private Securities Litigation Reform Act of 1995, as amended. &#160;Actual production, prices, price adjustments, and shipments of iron ore pellets, as well as actual royalty payments (including bonus royalties) could differ materially from current expectations due to inherent risks and uncertainties such as general adverse business and industry economic trends, uncertainties arising from war, terrorist events, the impact of the recent coronavirus (COVID-19) pandemic and other global events, higher or lower customer demand for steel and iron ore, decisions by mine operators regarding curtailments or idling production lines or entire plants, environmental compliance uncertainties, difficulties in obtaining and renewing necessary operating permits, higher imports of steel and iron ore substitutes, processing difficulties, consolidation and restructuring in the domestic steel market, market inputs tied to indexed price adjustment factors found in Cliffs Pellet Agreements resulting in future adjustments to royalties payable to Mesabi Trust and other factors. &#160;Further, substantial portions of royalties earned by Mesabi Trust are based on estimated prices that are subject to interim and final adjustments, which can be positive or negative, and are dependent in part on multiple price and inflation index factors under agreements to which Mesabi Trust is not a party and that are not known until after the end of a contract year. &#160;Although the Mesabi Trustees believe that any such forward-looking statements are based on reasonable assumptions, such statements are subject to risks and uncertainties, which could cause actual results to differ materially. &#160;Additional information concerning these and other risks and<font style="font-size:12pt;"> uncertainties is contained in Mesabi </font>Trust&#8217;s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the fiscal year ended January 31, 2021 (filed April 27, 2021). &#160;Mesabi Trust undertakes no obligation to publicly update or revise any of the forward-looking statements made herein to reflect events or circumstances after the date hereof<font style="color:#444444;">. </font></p><p style="font-family:'Times New Roman','Times','serif';font-size:12pt;text-align:justify;margin:0pt;"><font style="color:#444444;font-size:11pt;margin-bottom:5pt;margin-top:5pt;visibility:hidden;">&#8203;</font></p></div><div style="clear:both;display:table;margin-bottom:30pt;min-height:36pt;width:100%;"><div style="display:table-cell;vertical-align:bottom;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;text-align:center;margin:24pt 0pt 0pt 0pt;">2</p></div></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-bottom:30pt;margin-left:8.82%;margin-right:8.82%;margin-top:30pt;page-break-after:always;width:82.35%;border-width:0;"><div style="max-width:100%;padding-left:8.82%;padding-right:8.82%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;min-height:18.0pt;margin:0pt;"><font style="color:#7aa52a;">Contacts</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="color:#444444;">Mesabi Trust SHR Unit</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="color:#444444;">Deutsche Bank Trust Company Americas</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:11pt;margin:0pt;"><font style="color:#444444;">904-271-2520</font></p></div><div 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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>msb-20210430_lab.xml
<DESCRIPTION>EX-101.LAB
<TEXT>
<XBRL>
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    <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd#dei_Security12bTitle" xlink:label="dei_Security12bTitle" xmlns="http://www.xbrl.org/2003/linkbase" />
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>msb-20210430_pre.xml
<DESCRIPTION>EX-101.PRE
<TEXT>
<XBRL>
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<!--Created on: 5/3/2021 8:54:44 PM-->
<!--Modified on: 5/3/2021 8:54:44 PM-->
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.1</span><table class="report" border="0" cellspacing="2" id="idm140638768903400">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Document and Entity Information<br></strong></div></th>
<th class="th"><div>Apr. 30, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_msb_DocumentAndEntityInformationAbstract', window );"><strong>Document and Entity Information [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="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Apr. 30,  2021<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-4488<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">MESABI TRUST<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">NY<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">13-6022277<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">c/o Deutsche Bank Trust Company Americas<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine2', window );">Entity Address, Adress Line Two</a></td>
<td class="text">Trust & Agency Services<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine3', window );">Entity Address, Address Line Three</a></td>
<td class="text">60 Wall Street, 24th Floor<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">New York<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">NY<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">10005<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">904<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">271-2520<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Units of Beneficial Interest, no par value<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">MSB<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000065172<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_AmendmentFlag</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_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_CityAreaCode</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_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_DocumentPeriodEndDate</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:dateItemType</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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 2 such as Street or Suite number</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityAddressAddressLine3">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 3 such as an Office Park</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityAddressAddressLine3</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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.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 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.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 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.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 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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>
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<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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</table></div>
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<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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.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 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<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>
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</table></div>
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<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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
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<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_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.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 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_PreCommencementIssuerTenderOffer</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_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.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 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
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<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>
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<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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ 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>
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<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>
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<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="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.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="top.Show.toggleNext( this );">+ 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>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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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>
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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_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.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> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_SolicitingMaterial</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td>na</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_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.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="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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>
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<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</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>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_WrittenCommunications</td>
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<td>dei_</td>
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<td>xbrli:booleanItemType</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>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td style="white-space:nowrap;">msb_DocumentAndEntityInformationAbstract</td>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
