Notice to the Market – Riversdale Acquisition


NOTICE TO THE MARKET

Companhia Siderúrgica Nacional (“CSN”) informs its shareholders and the public that, as a complement to the Notice to the Market released on November 24, 2009, it has obtained the necessary approval from the Australian authorities, permitting the conclusion of the second stage of the acquisition of 2,482,729 shares of the capital stock of Riversdale Mining Limited (“Riversdale”), at the price of A$6.10 (six Australian dollars and ten cents) per share.

Upon conclusion of the two stages of the transaction, CSN will reach indirectly a total interest of 16.1% of Riversdale’s capital stock.

Rio de Janeiro, January 13, 2010.

Companhia Siderúrgica Nacional
Paulo Penido Pinto Marques
Investor Relations Officer

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