Announcement in Relation to Tender Offer to Acquire Shares of CIMPOR - CIMENTOS DE PORTUGAL, SGPS, S.A.

RIO DE JANEIRO, Jan. 28 /PRNewswire/ -- Companhia Siderurgica Nacional ("CSN") hereby gives notice to the shareholders of CIMPOR – CIMENTOS DE PORTUGAL, SGPS, S.A. ("CIMPOR") that CSN has commenced in Portugal, through its indirect subsidiary CSN Cement S.a.r.l., a tender offer to acquire up to all of the shares issued by CIMPOR pursuant to the terms and conditions set forth in a prospectus, dated January 27, 2010, ("Prospectus") and governed by Portuguese law.

A tender offer commencement notice and the Prospectus have been made available to the public on the website of the Portuguese Securities Market Commission (Comissao do Mercado de Valores Mobiliarios - CMVM) at http://www.cmvm.pt/en and both documents are also available on the internet in Portuguese at http://www.csn.com.br/ri and in English at http://www.csn.com.br/ir.  In addition, non-binding English free-translations of the tender offer commencement notice and of the Prospectus are available under cover of Forms 6-K on the website of the U.S. Securities and Exchange Commission at www.sec.gov.  For further information please contact CSN via email through [email protected], by telephone at 1 866 201 2904 (toll free) or by facsimile at +55 (11) 3049 7212.

The acceptance period of the offer begins on January 28, 2010 and ends at 10 am (EST) on February 17, 2010.

This announcement is neither an offer to purchase nor a solicitation of an offer to sell shares.  The offer is being made solely by the Prospectus and is addressed solely to the shareholders of CIMPOR.

SOURCE Companhia Siderurgica Nacional