CSN files 2008 Form 20-F


NOTICE TO THE MARKET

Companhia Siderúrgica Nacional – CSN [Bovespa: CSNA3, NYSE: SID], company that combines steel, mining, infrastructure and cement businesses, informs the filing of its annual report on Form 20-F for the fiscal year ended December 31, 2008 (the “2008 Form 20-F”) with the U.S. Securities and Exchange Commission (the “SEC”). The 2008 Form 20-F is available on both the SEC‘s website at www.sec.gov, as well as on the Company‘s website at www.csn.com.br/ir.

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