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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001292814-08-000101.txt : 20080117
<SEC-HEADER>0001292814-08-000101.hdr.sgml : 20080117
<ACCEPTANCE-DATETIME>20080117092800
ACCESSION NUMBER:		0001292814-08-000101
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080331
FILED AS OF DATE:		20080117
DATE AS OF CHANGE:		20080117

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:		08534780

	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>sid20080117_6k.htm
<DESCRIPTION>NOTICE TO THE MARKET
<TEXT>




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<HR SIZE="4" NOSHADE COLOR="#000000" ALIGN="left">
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>SECURITIES AND EXCHANGE COMMISSION </B></FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><B>Washington, D.C. 20549 </B></FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<HR align=center NOSHADE WIDTH="21%" COLOR="#000000">
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>FORM 6-K </B></FONT></DIV>
<DIV><FONT
SIZE="1">&nbsp;</FONT></DIV
><DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3"
COLOR="#000000">Report of Foreign Private Issuer<BR>
  Pursuant to Rule 13a-16 or 15d-16 of the</FONT></DIV>
<DIV
ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000">Securities Exchange Act of 1934</FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center">
  <div><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><B> For the month of January, 2008</B></FONT></DIV>
  <p></p>
  <FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><B> Commission File Number 1-14732 </B></FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<HR align=center NOSHADE WIDTH="21%" COLOR="#000000">
<DIV><FONT
SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B> COMPANHIA SIDER&#218;RGICA NACIONAL </B></FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Exact name of registrant as specified in its charter) </FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center"> </DIV>
<P></P>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B> National Steel Company </B></FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(Translation of Registrant's name into English)</FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<P></P>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><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 FACE="Times New Roman" SIZE="2" COLOR="#000000">(Address of principal executive office)</FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<P>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"> 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>
    <P></P>
    Form 20-F ___X___ Form 40-F _______
    <P>&nbsp;<FONT FACE="Times New Roman, Times, Serif" SIZE=3>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____
    <p></p>
    <hr size="2" noshade color="#000000" align="left">
</DIV>
<H5 align="left" style="page-break-before:always"></H5>
<A name="page_1"></A>

<P align="center">
<b>NOTICE TO THE MARKET</b><br>
COMPANHIA SIDER&#218;RGICA NACIONAL<br>
Publicly-held Company<br>
Rua S&#227;o Jos&#233; n.&#176; 20, Grupo 1602, parte<br>
Rio de Janeiro/RJ<br>
Corporate Taxpayer's ID (CNPJ/MF): 33.042.730/0001 -04</P>
<P align="justify">
  <b>COMPANHIA SIDER&#218;RGICA NACIONAL</b> ("CSN"), in light of (i) the decision rendered by the interim President of the Brazilian Administrative Council for Economic Defense (<I>Conselho Administrativo de Defesa
Econ&#244;mica</I>, or "CADE") in January 8, 2008, pursuant to which such Council demanded immediate compliance with a previous appellate decision of CADE of August 10, 2005 concerning the right of first refusal provisions related to the Casa
de Pedra mine set forth in the agreement entered into by CSN and Companhia Vale do Rio Doce ("CVRD"), as well as (ii) the judgment rendered by the President of the Brazilian Superior Court of Justice (<I>Superior Tribunal de
Justi&#231;a</I>) to the same extent within the complaint No. 1793-DF (<I>Processo Suspens&#227;o de Seguran&#231;a No. 1793-DF</I>) and (iii) the judgment rendered by the President of the Brazilian Federal Supreme Court
(<I>Supremo Tribunal Federal</I>) within the complaint No. 5780-DF (<I>Processo de Reclama&#231;&#227;o No. 5780-DF</I>), hereby announces the following:</P>
<P align="justify">
  CSN filed with the CADE a statement of compliance with the administrative order to refrain from performing the contractual provisions concerning the rights of first refusal of CVRD related to the Casa de Pedra mine to Brazilian and international
markets.</P>
<P align="justify">
Considering that the statement above is necessary in order for the parties not to be subject to daily fines and other penalties to be imposed by CADE, CSN hereby informs immediate compliance with the aforementioned decision.</P>
<P align="center">
Rio de Janeiro, January 17, 2008.</P>
<P align="center">&nbsp;</P>
<P align="center">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Companhia Sider&#250;rgica Nacional<br>
Jos&#233; Marcos Treiger<br>
Investor Relations Executive Officer</P>

<H5 align="left" style="page-break-before:always"></H5>
<hr size="2" noshade color="#000000" align="left">
<p><FONT SIZE="1">&nbsp;</FONT></p>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><B>SIGNATURE </B></FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="3"COLOR="#000000">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>
<p></p>
<DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"> Date: January 17, 2008</FONT></DIV>
<p></p>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center">
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="50%" BORDER="0">
    <TR>
      <TD VALIGN="top" COLSPAN="3" WIDTH="50%"><DIV align=left><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"> COMPANHIA SIDER&#218;RGICA NACIONAL </FONT></DIV></TD>
    </TR>
    <TR>
      <TD HEIGHT="16"></TD>
    </TR>
    <TR>
      <TD VALIGN="top" WIDTH="5%"><DIV align=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></DIV></TD>
      <TD VALIGN="bottom" ALIGN="center" WIDTH="43%"><DIV ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2" COLOR="#000000">/<SMALL>S</SMALL>/&nbsp;Benjamin Steinbruch </FONT></DIV>
          <HR NOSHADE SIZE=1 COLOR="#000000" ALIGN="left"></TD>
    </TR>
    <TR>
      <TD><FONT SIZE="1">&nbsp;</FONT></TD>
      <TD VALIGN="bottom" ALIGN="center" WIDTH="43%"><DIV ALIGN=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B> Benjamin Steinbruch
 </B></FONT></DIV>
          <DIV ALIGN=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B> Chief Executive Officer
<br>
          <br>
        </B></FONT></DIV></TD>
    </TR>
  </TABLE>
</DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<P>&nbsp;</P>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center">
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="50%" BORDER="0">
    <TR>
      <TD VALIGN="top" COLSPAN="3" WIDTH="50%"><DIV align=left></DIV></TD>
    </TR>
    <TR>
      <TD HEIGHT="16"></TD>
    </TR>
    <TR>
      <TD VALIGN="top" WIDTH="5%"><DIV align=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></DIV></TD>
      <TD VALIGN="bottom" ALIGN="center" WIDTH="43%"><DIV ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2" COLOR="#000000">/<SMALL>S</SMALL>/&nbsp;Ot&#225;vio de Garcia Lazcano </FONT></DIV>
          <HR NOSHADE SIZE=1 COLOR="#000000" ALIGN="left"></TD>
    </TR>
    <TR>
      <TD><FONT SIZE="1">&nbsp;</FONT></TD>
      <TD VALIGN="bottom" ALIGN="center" WIDTH="43%"><DIV ALIGN=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B> Ot&#225;vio de Garcia Lazcano
 </B></FONT></DIV>
          <DIV ALIGN=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B> Chief Financial Officer<br>
          <br>
        </B></FONT></DIV></TD>
    </TR>
  </TABLE>
</DIV>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<P>&nbsp;</P>
<DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3"
COLOR="#000000"><B>FORWARD-LOOKING STATEMENTS </B></FONT></DIV>
<P align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2> 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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