CSN Files 2016 Form 20-F with the U.S. SEC

São Paulo, Brazil, December 22nd, 2017 - Companhia Siderúrgica Nacional (B3: CSNA3; NYSE: SID) ("Company"), announces to its shareholders and to the market in general that Form 20-F‘s Annual Report for the fiscal year concluded on December 31, 2016 was filed at the U.S. Securities Exchange Commission (SEC) and also made available on the Company‘s Investor Relations website (

For further information, please contact:

Investor Relations
David Moise Salama
Investor Relations Executive Officer
Phone: +55 (11) 3049-7588