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.  

COMPANHIA SIDERÚRGICA NACIONAL

Publicly-held Company

Corporate Taxpayer’s ID (CNPJ/MF) 33.042.730/0001-04

Corporate Registry ID (NIRE) 3330001159-5

SECOND CALL NOTICE

EXTRAORDINARY SHAREHOLDERS’ MEETING

The Shareholders of Companhia Siderúrgica Nacional are summoned to attend the Extraordinary Shareholders’ Meeting to be held, at second call, on April 29, 2011, at 11:30 a.m., at the Company’s headquarters, located at Rua São José nº 20 - Grupo 1602, Centro, in the city and state of Rio de Janeiro, in order to resolve on the following Agenda: to examine and resolve on the restatement of the Bylaws, primarily in order to: (i) adjust the attributes of the Board of Directors, reflected in Article 19 of the proposal, with the consequent exclusion of items V, VI, IX, X, XII, XVIII, XXIII, XXIV and XXXIII of the current Article 17; (ii) alter the wording of Article 21 to transfer attributes of the Board of Directors to the Board of Executive Officers; (iii) alter the Company’s headquarters from the city of Rio de Janeiro to the city of São Paulo; (iv) create a statutory reserve for investments and working capital; (v) amend the provisions in the Bylaws regarding the criteria for establishing reimbursement amounts; (vi) alter, improve and simplify the wording of several articles to make them clearer and more objective, in accordance with the management proposal submitted to the shareholders; (vii) renumber the articles of the Bylaws in view of the changes introduced; and (viii) consolidate the Bylaws.

Pursuant to the provisions set forth in article 135 of Law 6,404/76, the instatement of the shareholders’ meeting at the second call will occur regardless of the number of attending shareholders.

Those Shareholders whose shares are held under custody are requested to present a statement of their shareholdings issued by the custodian institution. Shareholders intending to be represented by an attorney-in-fact shall observe the provisions of paragraph 1 article 126 of Law 6,404/76, delivering, preferably, at the Company’s headquarters the powers of attorney with special powers for representation at the General Meeting referred to herein, at least, seventy-two (72) hours prior to the date scheduled for the meeting, in order to enhance services provided to shareholders.

Documents related to the items included in the Agenda are available for Shareholders’ consultation at the Company’s headquarters and on the websites of the Brazilian Securities and Exchange Commission (CVM), at www.cvm.gov.br; BM&FBovespa - Bolsa de Valores, Mercadorias e Futuros S.A., at www.bmfbovespa.com.br, and the Company, at www.csn.com.br/ir.

Rio de Janeiro, April 19, 2011.

Benjamin Steinbruch

Chairman of the Board of Directors

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.