<SEC-DOCUMENT>0001292814-18-001281.txt : 20180423
<SEC-HEADER>0001292814-18-001281.hdr.sgml : 20180423
<ACCEPTANCE-DATETIME>20180420202013
ACCESSION NUMBER:		0001292814-18-001281
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180630
FILED AS OF DATE:		20180423
DATE AS OF CHANGE:		20180420

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATIONAL STEEL CO
		CENTRAL INDEX KEY:			0001049659
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14732
		FILM NUMBER:		18767785

	BUSINESS ADDRESS:	
		STREET 1:		RUA LAURO MULLER
		STREET 2:		116 36 ANDAR
		CITY:			RIO DE JANEIRO RJ BR
		STATE:			D5
		ZIP:			00000
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>sid20180420_6k1.htm
<DESCRIPTION>SID20180420_6K1
<TEXT>

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<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>SECURITIES AND EXCHANGE COMMISSION </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Washington, D.C. 20549 </B></FONT></DIV>

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<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>FORM 6-K </B></FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman">Report of Foreign Private Issuer<BR>Pursuant to Rule 13a-16 or 15d-16 of the</FONT></DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman">Securities Exchange Act of 1934</FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center>

<DIV><FONT color=#000000 size=3 face="Times New Roman"><B>For the month of April, 2018</B></FONT></DIV><FONT color=#000000 size=3 face="Times New Roman"><B>Commission File Number 1-14732 </B></FONT></DIV>

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<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>COMPANHIA SIDER&#218;RGICA NACIONAL </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">(Exact name of registrant as specified in its charter) </FONT></DIV>

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<DIV align=center><FONT color=#000000 size=5 face="Times New Roman"><B>National Steel Company </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">(Translation of Registrant's name into English)</FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>Av. Brigadeiro Faria Lima 3400, 20&#186; andar<BR>S&#227;o Paulo, SP, Brazil<BR>04538-132 </B></FONT></DIV>

<DIV align=center><FONT color=#000000 size=2 face="Times New Roman">(Address of principal executive office)</FONT></DIV>

<DIV><FONT size=1></FONT>&nbsp;</DIV>

<DIV align=center><FONT color=#000000 size=3 face="Times New Roman">Indicate by check mark whether the registrant files or will file annual reports<BR>under cover Form 20-F or Form 40-F.&nbsp;</FONT> Form 20-F ___X___ Form 40-F _______

<P>&nbsp;<FONT size=3 face="Times New Roman, Times, Serif">Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. </FONT>&nbsp;</P>Yes _______ No ___X____ </DIV>

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<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" color=black face="Times New Roman"></FONT></B>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" color=black face="Times New Roman">MINUTES OF THE EXTRAORDINARY MEETING OF THE BOARD OF DIRECTORS OF COMPANHIA SIDER&#218;RGICA NACIONAL, HELD ON APRIL </FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" face="Times New Roman">20</FONT></B><B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" color=black face="Times New Roman">, 2018, DRAWN UP AS A SUMMARY.</FONT></B></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0pt 0pt 0cm"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">State Registry (NIRE): 35300396090</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Corporate Taxpayer&#8217;s ID: 33.042.730/0001-04</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Date:</FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;April 20, 2018</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Time:</FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8 a.m.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 0.15pt"><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman">Venue:</FONT></B><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Av. Brig. Faria Lima, 3400, 20&#186; andar, S&#227;o Paulo &#8211; SP</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" color=black face="Times New Roman">Call Notice: &nbsp;&nbsp;&nbsp;</FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt; LINE-HEIGHT: 12pt" color=black face="Times New Roman">Pursuant to Paragraph Five of Article 15 of the Bylaws).</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT></B>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0pt 0pt 0cm"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Attendance: </FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Benjamin Steinbruch (Chairman), L&#233;o Steinbruch, Fabiam Franklin, Yoshiaki Nakano, Fernando Perrone e Antonio Bernardo Vieira Maia &#8211; Board Members; Claudia Maria Sarti &#8211; General Secretary of the Board of Directors. The meeting was held in compliance with the provisions of Article 15, Paragraph 2 of the Bylaws. </FONT></P>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=Consolas></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Agenda:</FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"> Saleof all shares </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt; LAYOUT-GRID-MODE: line" face="Times New Roman">held in treasury. </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT></B>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">Matters Discussed: Disposal of all shares held in treasury</FONT></B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"> &#8211; The Board of Directors (&#8220;Board&#8221;) unanimously approved, pursuant to the provisions of Article 19, Item X, of the Bylaws, the sale, by the Company, of up to 30,391,000 common shares issued by CSN and held in treasury, to comply with the provisions of Article 9 of CVM Instruction 567/2015. The sale operations shall be carried out as of this date, including, up to, at the latest, April 30, 2018, through trading on the Stock Exchange, at market price, with the intermediation of the following broker companies: Ita&#250; Corretora de Valores S.A., Av. </FONT><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman">Brig. Faria Lima, 3.500, 3&#186; andar, S&#227;o Paulo &#8211; SP and Conc&#243;rdia S/A C.V.M.C.C, Rua L&#237;bero Badar&#243;, 425, 23&#186; andar, S&#227;o Paulo &#8211; SP. </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">The number of shares of the Company outstanding in the market, pursuant to Item I, Paragraph 3 of Article 8 of CVM Instruction 567/2015, is of 637,569,054 shares. The Board assigned to the Executive Board the powers to take any and all measures necessary to implement this resolution, including the starting date of the disposal of shares, as well as the disclosure of the information set forth in Annex 30-XXXVI of CVM Instruction 480/2009, which is filed at the Company&#8217;s headquarters and initialed by the General Secretary to the Board. </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">I hereby certify that the resolutions transcribed herein are faithful in content to the original minutes filed at the Company's headquarters. &nbsp;</FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 12pt" face="Times New Roman">COMPANHIA SIDER&#218;RGICA NACIONAL</FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

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<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 11pt" face="Times New Roman">Claudia Maria Sarti </FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">General Secretary to the Board of Directors</FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman"></FONT>&nbsp;</P>

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<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Annex 30-XXXVI - CVM Instruction 480/09</FONT></B></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Trade of the Company&#8217;s Own Shares</FONT></I></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman"></FONT></B>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">1.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; Justify in detail the purpose and the estimated economic effects of the transaction.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Disposal of shares held in treasury to comply with Article</FONT></I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman"> </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">9 of CVMI 567/2015, since it was verified that the balance of resources available was exceeded, as ascertained in the Financial Statements disclosed on October 28, 2017. This transaction will lead to a cash inflow to the Company in the amount of the shares sold.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">2.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; State the number of outstanding shares (i) and of (ii) the number of shares already held in treasury.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">637,569,054 outstanding shares, including 30,391,000 held in treasury.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">3.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; State the number of shares that may be acquired or sold.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">30,391,000 shares.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">4.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; Describe the main features of the derivative instruments that the company may use, if any</FONT><FONT lang=EN-US style="FONT-SIZE: 12pt" color=red face="Times New Roman">.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">5.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; Describe any existing voting agreements or guidance between the company and the other party of the transaction. </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">6.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; In case of transactions out of the organized securities markets, state: </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 35.45pt; TEXT-INDENT: -14.15pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">a.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; the maximum price (minimum) for which the shares will be purchased (sold); and </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 35.45pt; TEXT-INDENT: -14.15pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 35.45pt; TEXT-INDENT: -14.15pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">b.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; if applicable, the reasons to carry out the transactions at prices more than 10% (ten percent) higher, in the case of purchase, or more than 10% (ten percent) lower, in the case of sale, then the average price, weighted by volume, in the ten previous (10) trading days;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 35.45pt; TEXT-INDENT: -14.15pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=calibri,sans-serif>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">7.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; State, if any, the impact that the trading will have on the Company&#8217;s shareholding or management structure.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">8.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; Identify the other party, if known, and, if the party is a related party of the company, as established by the accounting rules on this matter, also provide the information required by Article 8 of CVM Instruction 481, of December 17, 2009. </FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Not applicable.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">9.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp; State the allocation of the proceeds, if applicable.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">Working Capital.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">10.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; State the deadline for the payment of the authorized transactions.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">The disposal transactions must be carried out as of April 20, 2018, including this date, up to April 30, 2018, at the latest, with the payment made up to May 4, 2018, at the latest.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">11.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; Identify the institutions that will work as intermediaries, if any;</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><I><FONT lang=PT-BR style="FONT-SIZE: 12pt" face="Times New Roman">Ita&#250; Corretora de Valores S.A., Av. Brig.</FONT></I><FONT lang=PT-BR style="FONT-SIZE: 12pt" face="Times New Roman"> </FONT><I><FONT lang=PT-BR style="FONT-SIZE: 12pt" face="Times New Roman">Faria Lima, 3.500, 3&#186; andar, S&#227;o Paulo &#8211; SP and Conc&#243;rdia S/A C.V.M.C.C, Rua L&#237;bero Badar&#243;, 425, 23&#186; andar, S&#227;o Paulo &#8211; SP.</FONT></I></P>

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<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">12.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; Specify the resources available to be used, pursuant to Article 7, Paragraph 1, of CVM Instruction No. 567, of September 17, 2015. </FONT></P>

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<P style="TEXT-ALIGN: justify; MARGIN: 6pt 0cm 0pt 21.3pt; TEXT-INDENT: -21.3pt"><B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">13.</FONT></B><FONT lang=EN-US style="FONT-SIZE: 12pt" face="Times New Roman">&nbsp; Specify the reasons why the Board Members feel assured that the buybacks do not affect the compliance with the obligations to creditors or the payment of mandatory dividends, fixed or minimum.</FONT></P>

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<DIV align=center><FONT color=#000000 size=3 face="Times New Roman">SIGNATURE </FONT></DIV>

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<DIV style="TEXT-INDENT: 4%"><FONT color=#000000 size=3 face="Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. </FONT></DIV>

<DIV style="TEXT-INDENT: 4%"><FONT color=#000000 size=3 face="Times New Roman">Date:&nbsp;April 20, 2018</FONT></DIV>

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   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman">COMPANHIA SIDER&#218;RGICA NACIONAL </FONT></DIV></TD></TR>

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman">By:</FONT></DIV></TD>

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   <DIV align=center><FONT color=#000000 size=2 face="Times New Roman">/<SMALL>S</SMALL>/&nbsp;Benjamin Steinbruch </FONT></DIV>

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B>Benjamin Steinbruch </B></FONT></DIV>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B>Chief Executive Officer <BR><BR></B></FONT></DIV></TD></TR></TABLE></DIV>&nbsp;

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   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman">COMPANHIA SIDER&#218;RGICA NACIONAL </FONT></DIV></TD></TR>

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   <DIV align=center><FONT color=#000000 size=2 face="Times New Roman">/<SMALL>S</SMALL>/&nbsp;Marcelo Cunha Ribeiro </FONT></DIV>

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   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B>Marcelo Cunha Ribeiro </B></FONT></DIV>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B>IR Executive Officer <BR><BR></B></FONT></DIV></TD></TR></TABLE></DIV>

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<DIV align=center><FONT color=#000000 size=3 face="Times New Roman"><B>FORWARD-LOOKING STATEMENTS </B></FONT></DIV>

<P align=justify><FONT size=2 face="Times New Roman, Times, Serif">This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations. </FONT></P>

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