Material Fact – Additional information on the note published in VALOR ECONÔMICO newspaper


Material Fact – Additional information on the note published in VALOR ECONÔMICO newspaper

In reference to the note published in today’s edition of the VALOR ECONÔMICO newspaper (page E-1), COMPANHIA SIDERÚRGICA NACIONAL (“CSN”) hereby clarifies that:

Rio de Janeiro, May 10, 2007.

COMPANHIA SIDERÚRGICA NACIONAL
Benjamin Steinbruch
Investor Relations Officer