COMUNICADO AO MERCADO



NOTICE TO THE MARKET


COMPANHIA SIDERÚRGICA NACIONAL, pursuant to paragraph 6 of article 12 of CVM Instruction 358/2002, as amended, hereby announces that, on this date, it received the following communication from Rio Purus Participações S.A., its indirect controlling shareholder, stating that the shareholding structure set forth in item 4 of the communication sent on December 1, 2015 contains incomplete names and typing errors in the 'Percentage Share' column:.


'RIO PURUS PARTICIPAÇÕES S.A., a private legal entity constituted in the form of a closely-held corporation, whose articles of incorporation are filed with the São Paulo State Registry of Commerce under Corporate Registry Inscription no. 35-3.0035514-8, with headquarters at Rua Henrique Schaumann, 270/278, Sobreloja, Sala Rio Purus, CEP 05413- 010, in the city and state of São Paulo and inscribed in the Finance Ministry's roll of corporate taxpayers (CNPJ) under no. 60.078.060/0001-59, herein represented by its articles of incorporation (henceforth simply 'Rio Purus'), in reference to the communication sent yesterday (the 'Communication'), hereby declares that the shareholding structure set forth in item 4 of the Communication contains incomplete names and typing errors in the 'Percentage Share' column, and asks that you instead consider the table below, which corrects that sent yesterday:


Shareholder

Number of Shares

Percentage Share

Comments

Estate of Dorothéa Steinbruch

702,191,372 common shares

50.0051%

Wholly-owned by the shareholder.

Victória Steinbruch

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Benjamin Steinbruch.

Felipe Steinbruch

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Benjamin Steinbruch.

Alessandra Steinbruch

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Benjamin Steinbruch.

Mendel Steinbruch

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Benjamin Steinbruch.

Arno Schwarz

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Elisabeth Steinbruch Schwarz.

Adriana Schwarz Flaksberg

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Elisabeth Steinbruch Schwarz.

Gabriela Schwarz Sztokfisz

58,503,852 common shares

4.1662%

Lifetime usufruct in favor of Elisabeth


Steinbruch Schwarz.

Mendel Schwarz

58,503,851 common shares

4.1662%

Lifetime usufruct in favor of Elisabeth Steinbruch Schwarz.

Guilherme Steinbruch

78,005,136 common shares

5.5550%

Lifetime usufruct in favor of Ricardo Steinbruch.

Daniel Steinbruch

78,005,136 common shares

5.5550%

Lifetime usufruct in favor of Ricardo Steinbruch.

Rafael Steinbruch

78,005,136 common shares

5.5550%

Lifetime usufruct in favor of Ricardo Steinbruch.

Benjamin Steinbruch

1,000 common shares

0.0001%

Wholly-owned by the shareholder.

Elisabeth Steinbruch Schwarz

1,000 common shares

0.0001%

Wholly-owned by the shareholder.

Ricardo Steinbruch

1,000 common shares

0.0001%

Wholly-owned by the shareholder.

TOTAL

1.404.240.595

100%


In relation to all of the above, we request that you take all the appropriate measures arising from the information contained herein.


We remain at your disposal for any further information you may need'.


São Paulo, December 2, 2015


Companhia Siderúrgica Nacional Gustavo Henrique Santos de Sousa Executive Officer

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