Material Fact – Change in the Offer Cimpor


Material Fact – Change in the Offer Cimpor

COMPANHIA SIDERÚRGICA NACIONAL (“CSN” or “Company”), pursuant to article 157 of Law 6404/76 and CVM Instruction 358/02, and complementing the Material Fact published on December 18, 2009 and the Notices to the Market published on December 30, 2009, and January 26, 2010, hereby informs its shareholders and the public in general that it announced on this date the revision of the following conditions for the public offer for the acquisition of shares issued by Cimpor – Cimentos de Portugal, SGPS, S.A. (“CIMPOR”), which was announced on January 27, 2010 (“Offer”):

a)the price of the Offer is € 6.18 per share, to be paid in cash;

b)the Offer is subordinate to the acquisition by CSN Cement S. à r.l.

(“Offeror”), within the Offer, of a number of Shares that, when added to the Shares that may eventually be acquired outside the Offer by the Offeror, CSN and/or companies in a control or group relationship with the same, represent at least one third of the share capital of CIMPOR plus one share.

As a result of the revision of said conditions, the Offer will be suspended until the Offeror discloses an addendum to the Offering documents, which will occur after approval by the Securities and Exchange Commission of Portugal.

The Company will keep the CVM, the BOVESPA and the market informed of any developments related to the issues dealt with in this Material Fact.

Rio de Janeiro, February 12, 2010

Companhia Siderúrgica Nacional
Paulo Penido Pinto Marques
Investor Relations Officer

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