<SEC-DOCUMENT>0001292814-15-002775.txt : 20151117
<SEC-HEADER>0001292814-15-002775.hdr.sgml : 20151117
<ACCEPTANCE-DATETIME>20151117164839
ACCESSION NUMBER:		0001292814-15-002775
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151231
FILED AS OF DATE:		20151117
DATE AS OF CHANGE:		20151117

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:		151238699

	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>sid20151711_6k.htm
<DESCRIPTION>NOTICE TO THE MARKET
<TEXT>

<HTML>
<HEAD>
   <TITLE>sid20151711_6k.htm - Generated by SEC Publisher for SEC Filing</TITLE>
</HEAD>

<BODY bgcolor="#ffffff">



<HR align=left color=#000000 SIZE=4 noShade>



<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>

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

<HR align=center color=#000000 width="21%" noShade>



<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 November 17, 2015</B></FONT></DIV><FONT color=#000000 size=3 face="Times New Roman"><B>Commission File Number 1-14732 </B></FONT></DIV>

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

<HR align=center color=#000000 width="21%" noShade>



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

<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>

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

<DIV align=center></DIV>

<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>

<HR align=left color=#000000 SIZE=2 noShade>



<DIV style="PAGE-BREAK-BEFORE: always">&nbsp;</DIV>&nbsp; <A name="page_1"></A>

<DIV style="PADDING-LEFT: 0%; PADDING-RIGHT: 0%">

<a name="_bclHeader1"></a><DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=PT-BR style="FONT-SIZE: 11pt" face=Calibri,sans-serif></FONT>&nbsp;</P></DIV>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=PT-BR style="FONT-SIZE: 11.5pt" color=windowtext 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: 11.5pt" color=windowtext face="Times New Roman">Corporate Taxpayer&#8217;s ID (CNPJ/MF): 33.042.730/0001-04</FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11.5pt" color=windowtext face="Times New Roman">Publicly-held Company</FONT></P>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" color=windowtext face="Times New Roman"></FONT>&nbsp;</P>

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

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><B><FONT lang=EN-US style="FONT-SIZE: 12pt" color=windowtext face="Times New Roman">NOTICE TO THE MARKET</FONT></B></P>

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

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

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" color=windowtext face="Times New Roman">On November 16, 2015, we received Bovespa Official Letter 3433/2015-SAE with the consultation transcribed below:</FONT></P>

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

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 42.55pt"><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">&#8220;The article published on Valor Econ&#244;mico newspaper on November 16, 2015, includes, among other information, the following content:</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 42.55pt"><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman"></FONT></I>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 78.55pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=wingdings>&#252;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman"> </FONT><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">The company expects Ebitda, which was R$853 million between July and September, to return to the level of R$1 billion in the next balance sheet;</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 78.55pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=wingdings>&#252;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman"> </FONT><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">At the end of this quarter, leverage, measured by the net debt/Ebitda ratio, will be reduced;</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 10pt 78.55pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=wingdings>&#252;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman"> </FONT><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">The Ebitda margin from mining operations, which was 42%, may reach 50% at the close of the current quarter.</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 42.55pt"><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">We did not identify this information on the documents sent by the company through the Empresas.NET system. In case of contradiction, please inform the document and pages containing such information and the date and time when they were sent&#8221;.&nbsp;</FONT></I></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt 42.55pt"><FONT lang=EN-US style="FONT-SIZE: 12pt" 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">About the abovementioned, we clarify the following:</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 0cm 36pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">On November 13, 2015, the Company held a conference call to disclose its results for the third quarter of 2015 (&#8220;Conference Call&#8221;) when these statements, among other information, were made based on Management&#8217;s estimates.</FONT></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 115%"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">The Conference Call had its schedule previously announced and the event was open to the market in general and broadcasted live on the internet (webcast), with wide participation of investors and analysts. </FONT></P>

<P style="MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 115%"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">Both presentation and full content of the Conference Call audio are available on CSN's Investor Relations website (</FONT><FONT lang=EN-US style="FONT-SIZE: 11pt; TEXT-DECORATION: none" color=windowtext face="times new roman">www.csn.com.br/i</FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">r), on the </FONT><B><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">&#8220;Webcast 3Q15&#8221; section.</FONT></B></P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 115%"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 116%; TEXT-INDENT: -18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face=symbol>&#183;</FONT><FONT lang=EN-US style="FONT-SIZE: 7pt" face="times new roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </FONT><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">At the beginning of the Conference Call, the announcement below regarding potential comments from Management was made:</FONT></P>

<P style="MARGIN: 0cm 0cm 0cm 36pt; LINE-HEIGHT: 115%"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman"></FONT>&nbsp;</P>

<P style="TEXT-ALIGN: justify; MARGIN: 0cm 0cm 10pt 36pt; LINE-HEIGHT: 116%"><I><FONT lang=EN-US style="FONT-SIZE: 11pt" face="times new roman">Certain statements made during the conference call regarding CSN&#8217;s future performance, estimates and operating and financial goals are based on the beliefs and assumptions of the Company&#8217;s management, and on information currently available to the Company. &nbsp;Forward-looking statements are not a guarantee of performance.&nbsp; They involve risks, uncertainties and assumptions because they relate to future events and therefore depend on circumstances that may or may not occur in the future.&nbsp; Investors should understand that general economic conditions, industry conditions and other operating factors could also affect CSN&#8217;s future results and could cause results to differ materially from those expressed in such forward-looking statements&#8221;.</FONT></I></P>

<a name="_bclFooter1"></a><DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=PT-BR style="FONT-SIZE: 11pt" face=Calibri,sans-serif></FONT>&nbsp;</P></DIV></DIV>

<HR align=center SIZE=2 width="100%" noShade>



<DIV style="PAGE-BREAK-BEFORE: always">&nbsp;</DIV>

&nbsp; <A name="page_2"></A>

<DIV style="PADDING-LEFT: 0%; PADDING-RIGHT: 0%">

<a name="_bclHeader2"></a><DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=PT-BR style="FONT-SIZE: 11pt" face=Calibri,sans-serif></FONT>&nbsp;</P></DIV>

<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; LINE-HEIGHT: 18pt"><FONT lang=EN-US style="FONT-SIZE: 11pt" face="Times New Roman">We are at your disposal for any further clarifications deemed necessary.</FONT></P>

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><FONT lang=EN-US style="FONT-SIZE: 11pt" color=windowtext 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" color=windowtext face="Times New Roman">S&#227;o Paulo, November 17, 2015.</FONT></P>

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

<P style="TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt" align=center><B><FONT lang=PT-BR style="FONT-SIZE: 11pt" color=windowtext face="Times New Roman">Gustavo Henrique Santos de Sousa</FONT></B></P>

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

<a name="_bclFooter2"></a><DIV>

<P style="MARGIN: 0cm 0cm 0pt"><FONT lang=PT-BR style="FONT-SIZE: 11pt" face=Calibri,sans-serif></FONT>&nbsp;</P></DIV>

<DIV style="PAGE-BREAK-BEFORE: always">&nbsp;</DIV>

<HR align=center SIZE=2 width="100%" noShade>



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

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

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

<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;November 17, 2015</FONT></DIV>

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

<DIV align=center>

<TABLE style="WIDTH: 50%" cellSpacing=0 cellPadding=0 border=0>



<TR>

   <TD vAlign=top width="50%" colSpan=2>

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

<TR height=20>

   <TD vAlign=top width="50%" colSpan=2>

   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman"></FONT></DIV></TD></TR>

<TR>

   <TD vAlign=top width="5%">

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

   <TD vAlign=bottom width="45%" align=center>

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

   <HR align=left color=#000000 SIZE=1 noShade>

</TD></TR>

<TR>

   <TD width="5%"><FONT size=1>&nbsp;</FONT></TD>

   <TD vAlign=bottom width="45%" align=center>

   <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>

<P>&nbsp;</P>

<DIV align=center>

<TABLE style="WIDTH: 50%" cellSpacing=0 cellPadding=0 align=center border=0>



<TR>

   <TD vAlign=top width="50%" colSpan=2>

   <DIV align=left>&nbsp;</DIV></TD></TR>

<TR height=20>

   <TD vAlign=top width="50%" colSpan=2>

   <DIV align=left><FONT color=#000000 size=3 face="Times New Roman"></FONT></DIV></TD></TR>

<TR>

   <TD vAlign=top width="5%">

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

   <TD vAlign=bottom width="45%" align=center>

   <DIV align=center><FONT color=#000000 size=2 face="Times New Roman">/<SMALL>S</SMALL>/&nbsp;Gustavo Henrique Santos de Sousa </FONT></DIV>

   <HR align=left color=#000000 SIZE=1 noShade>

</TD></TR>

<TR>

   <TD width="5%"><FONT size=1>&nbsp;</FONT></TD>

   <TD vAlign=bottom width="45%" align=center>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B>Gustavo Henrique Santos de Sousa</B></FONT></DIV>

   <DIV align=left><FONT color=#000000 size=2 face="Times New Roman"><B><STRONG>Controllership, Taxes and Investor Relations Executive Officer</STRONG><BR><BR></B></FONT></DIV></TD></TR></TABLE></DIV>

<DIV>&nbsp;</DIV>

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

<P>&nbsp;</P>

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

<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>

<HR align=left color=#000000 SIZE=2 noShade>



</BODY>

</HTML>

</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
