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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001292814-06-002219.txt : 20060825
<SEC-HEADER>0001292814-06-002219.hdr.sgml : 20060825
<ACCEPTANCE-DATETIME>20060825105922
ACCESSION NUMBER:		0001292814-06-002219
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060930
FILED AS OF DATE:		20060825
DATE AS OF CHANGE:		20060825

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:		061054547

	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>sid20060825_6k.htm
<DESCRIPTION>NOTICE TO THE MARKET
<TEXT>
<html><head><title>Provided By MZ Data Products</title>
</head>
<BODY bgColor=#ffffff style="font-family:'Times New Roman, Times, serif'; font-size:12px; text-align:justify">

<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 August, 2006</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>
<A name="page_1"></A>

<P align="center">
<B>NOTICE TO THE MARKET</B><BR>
COMPANHIA SIDER&Uacute;RGICA NACIONAL <BR>
Rua S&atilde;o Jos&eacute; n# 20, Grupo 1602, parte <BR>
Rio de Janeiro/RJ <BR>
Corporate Taxpayers&#146; ID (CNPJ): 33.042.730/0001 -04 <BR>
</P>
<P align="center">
<B> Clinker plant equipment supply and project agreement </B></P>
<UL>
<LI>
Following on <B>Notice to the Market of August 17, 2006</B>, CSN announces that <B>CSN Cimentos S.A</B>. has signed an equipment supply and project agreement for its clinker plant, located in the municipality of Arcos in the state of Minas Gerais,
with two Chinese companies &#150; Shenyang Heavy Machinery Group and Chengdu Design Institute.</LI></UL>
<UL>
<LI>
Commenting on the agreement, <B>Marcos Paim</B>, the CSN executive in charge of the enterprise declared: "The hiring of these services combines three significant benefits: <B>competitive price, safe and</B> <B>secure implementation, </B>given that
this is the most-used model in China, and a <B>fully up-to-date and highly cost-effective production</B> <B>process</B>".</LI></UL>
<P align="center">
<B>Rio de Janeiro, August 25, 2006 </B></P>
<P align="center">
Companhia Sider&uacute;rgica Nacional <BR>
<B>Benjamin Steinbruch </B><BR>
Investor Relations Officer<BR>
</P>
<p Style='page-break-before:always'>

<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: August 25, 2006</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 and

       <br>
Acting Chief Financial Officer       <br>
</B></FONT></DIV>  </TD> </TR>
 </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
<P>&nbsp;</P>
<P></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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