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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001292814-10-000654.txt : 20100315
<SEC-HEADER>0001292814-10-000654.hdr.sgml : 20100315
<ACCEPTANCE-DATETIME>20100315155304
ACCESSION NUMBER:		0001292814-10-000654
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100331
FILED AS OF DATE:		20100315
DATE AS OF CHANGE:		20100315

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:		10681406

	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>sid20100315_6k.htm
<DESCRIPTION>AMONG OTHER MATTERS
<TEXT>
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   <TITLE>Provided by MZ Technologies</TITLE>

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<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 March, 2010</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>
</DIV>
<hr size="2" noshade color="#000000" align="left">
<H5 align="left" style="page-break-before:always"></H5>
<p><A name="page_1"></A>

  <br>
  GAE/CAEM 0326-10<BR>
March 10, 2010</p>
<p><BR>
  Companhia Sider&uacute;rgica Nacional<BR>
  Investor Relations Officer<BR>
  Paulo Penido Pinto Marques<BR>
</p>
<p>Dear Sir,<BR>
</p>
<P>
Among other matters, an article published in the March 10 edition of the newspaper <I>O Estado de S&atilde;o Paulo</I>, states that:</P>

- -
CSN will invest US&#36; 600 million in the construction of three cement factories in Brazil;
<br>
- -
With these new units and the doubling of capacity in the Volta Redonda factory, the Group&#146;s

cement production capacity will reach around 6 million tonnes p.a.;<br>
- -
CSN envisages investments in organic growth of R&#36; 3 billion p.a. over the next 5 years;
<br>
- -
Given its expansion plans, CSN may double in size within 3 years via organic growth alone;
<br>
- -
The company plans to have an iron ore production capacity of 150 million tonnes p.a.&#150; as a
result, it may undertake an M&amp;A investment in the operational area of MRS and the port of Sepetiba;<br>
- -
CSN expects to sell 5 million tonnes of steel in 2010;
<br>
- -
CSN plans to become an operational holding company, with its 5 assets (steel, mining, logistics,
energy and cement) under the same umbrella<B> </B>and may go public with each of these assets.
<P>
We would be grateful if you would clarify this matter and provide any other information considered important.</P>
Sincerely,<BR>
<P>
Nelson Barroso Ortega<br>
Corporate Oversight Department<br>
BM&amp;FBOVESPA S.A. &#150; Securities, Commodities and Futures Exchange <br>
Phone: (+55 11) 2565-6063 / 2565-7222</P>
<TABLE width=100% border=0 cellpadding=0 cellspacing=0 style="font-family: 'Times New Roman, Times, Serif'; font-size:11px">
<TR>
	<TD width=5%></TD>
	<TD></TD>
  <TD></TD>
</TR>
<TR valign="bottom">
	<TD width="5%" align=left>copies </TD>
	<TD width="2%">&nbsp;</TD>
  <TD align=left>CVM - Brazilian Securities and Exchange Commission&nbsp;</TD></TR>
<TR valign="bottom">
	<TD width="5%" align=left>&nbsp;</TD>
	<TD>&nbsp;</TD>
	<TD align=left>Elizabeth Lopez Rios Machado - Head of Corporate Relations&nbsp;</TD></TR>
<TR valign="bottom">
	<TD width="5%" align=center>&nbsp;</TD>
	<TD align=center>&nbsp;</TD>
	<TD align=left>Waldir de Jesus Nobre &#150; Head of Market Relations</TD>
</TR>
</TABLE>
<BR>
<P>
Replies should be sent via the <B>IPE System</B>, selecting the category: <I>Notice to the Market</I> and then the type: <I>Clarifications regarding CVM/Bovespa requests</I>. The file will then be sent simultaneously to the Bovespa and the CVM.</P>
<P>
To facilitate market understanding, the contents of the above letter should be inserted before the company&#146;s reply. </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%">
  <p><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"> Date: March 15</FONT><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000">, 2010</FONT></p>
</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;Paulo Penido Pinto Marques </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> Paulo Penido Pinto Marques
 </B></FONT></DIV>
          <DIV ALIGN=left><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Chief Financial Officer and  Investor Relations 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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