SID Companhia Siderurgica Nacional

  Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.  

CALL NOTICE OF

ANNUAL AND EXTRAORDINARY SHAREHOLDERS' MEETING

The Shareholders of COMPANHIA SIDERÚRGICA NACIONAL are hereby invited to attend the Annual and Extraordinary Shareholders' Meetings to be held on April 28, 2017, at 11:00 a.m., at the Company's headquarters, located at Av. Brig. Faria Lima, 3400, 20 ^th floor, in the city and state of São Paulo, to resolve on the following agenda:

At the Extraordinary Shareholders' Meeting, at a second call, pursuant of paragraph 1 of art. 124 of Law no. 6,404/76, to deliberate on the proposal for amendment and consolidation of the Company’s bylaws.

At the Annual Shareholders' Meeting, (1)  t o define the number of members of the Company’s Board of Directors and elect its members e; (2) to determine the overall annual compensation of the administrators for fiscal year 2017.

Note that a minimum of 5% of the Company’s voting capital is needed to request the adoption of a multiple voting election process.

We would ask all those Shareholders whose shares are held in custody to present an up-to-date statement of their shareholdings issued by the custodial body, containing the respective shareholding.

The shareholders participation might be (1) personnel, (2) by an attorney-in-law constituted, or (iii) via remote voting form through its respective custodian agents or directly to the Company, pursuant to CVM Instruction No. 481/09, as amended.

Those who wish to be represented by proxy to observe the terms of paragraph 1 of article 126 of Law 6404/76 and deliver, to the Company’s headquarters, their powers of attorney with special powers for representation at the Shareholders' Meeting that is the object of this notice not later than forty-eight (48) hours prior to the date of the meeting in order to facilitate services to shareholders.

Detailed guidance on completing and submitting the Distance Voting Bulletin, as well as the documentation relating to the matters on the agenda are available at the Company’s headquarters, as well as on the websites of the Brazilian Securities and Exchange Commission – CVM ( www.cvm.gov.br ), the Securities, Commodities and Futures Exchange – BM&FBovespa  ( www.bmfbovespa.com.br ) and the Company (www.csn.com.br/ri).

São Paulo, March 28, 2017.

Benjamin Steinbruch

Chairman of the Board of Directors