CSN announces 2Q10 Results


EBITDA MARGIN REACHES 41% AND GROSS PROFIT
STANDS AT R$1.4 BILLION IN 1Q10

São Paulo, Brazil, August 11, 2010 – Companhia Siderúrgica Nacional (CSN) (BM&FBOVESPA: CSNA3) (NYSE: SID) announces today its results for the second quarter of 2010 (2Q10), in accordance with Brazilian accounting principles, and denominated in Brazilian Reais (R$). All comments presented herein refer to the Company’s consolidated results and comparisons refer to the first quarter of 2010 (1Q10), unless otherwise stated. The Real/US Dollar exchange rate on June 30, 2010 was R$1.8015.

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