Companhia Siderúrgica Nacional : Description Report of Foreign Issuer

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange Act of 1934

For the month of March, 2019

Commission File Number 1-14732

COMPANHIA SIDERÚRGICA NACIONAL

(Exact name of registrant as specified in its charter)

National Steel Company

(Translation of Registrant's name into English)

Av. Brigadeiro Faria Lima 3400, 20º andar

São Paulo, SP, Brazil

04538-132

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F ___X___ Form 40-F _______

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.

Yes _______ No ___X____

2019 ANNUAL CALENDAR

Corporate Name	CSN - Companhia Siderúrgica Nacional
Head Office Address	Avenida Brigadeiro Faria Lima, 3400 - 19° e 20º andar - Itaim Bibi - São Paulo
Website	www.csn.com.br
Investor Relations Officer	Name: Marcelo Cunha Ribeiro E-mail:[e-mail]: [phone]
Person responsible for the Investor Relations Area (other than the Investor Relations Officer)	Name: Leonardo Tatsuya Shinohara E-mail:[e-mail]: [phone]
Newspapers (and locations) in which its corporate documents are published	São Paulo State Official Gazette Folha de São Paulo - Regional Issue

A - Mandatory Schedule

Complete Annual Financial Statements for the fiscal year ended December 31, 2018
EVENT	DATE
Disclosure via IPE system	2/20/2019

Standardized Financial Statements (DFP) for the fiscal year ended December 31, 2018
EVENT	DATE
Disclosure via ENET	2/20/2019

Annual Financial Statements translated into English for the fiscal year ended December 31, 2018
EVENT	DATE
Disclosure via IPE system	3/26/2019

Reference Form for the current fiscal year
EVENT	DATE
Disclosure via ENET	5/09/2019

Interim Financial Information (ITR)
EVENT - Disclosure via ENET	DATE
Referring to the 1st quarter	5/08/2019
Referring to the 2nd quarter	7/31/2019
Referring to the 3rd quarter	10/30/2019

1

Interim Financial Information translated into English
EVENT - Disclosure via IPE system	DATE
Referring to the 1st quarter	5/28/2019
Referring to the 2nd quarter	8/27/2019
Referring to the 3rd quarter	11/26/2019

Annual Shareholders' Meeting
EVENT	DATE
Date of the Annual Shareholders' Meeting	4/26/2019

B - Optional Schedule

(Events already scheduled in the first presentation of the Annual Calendar)

Conference Call
EVENT	DATE
Date of the Conference Call: 2018 Results	2/21/2019
Date of the Conference Call: 1Q18 Results	5/09/2019
Date of the Conference Call: 2Q18 Results	8/01/2019
Date of the Conference Call: 3Q18 Results	10/31/2019

Annual Shareholders' Meeting
EVENT	DATE
Submission of the Management Proposal via IPE system	3/26/2019
Submission of the Call Notice via IPE system	3/26/2019
Submission of the summary of the main resolutions or minutes of the Meeting via IPE system	3/26/2019

Board of Directors Meetings
EVENT	DATE
Date of the Board of Directors' Meeting	2/20/2019
Date of the Board of Directors' Meeting	5/08/2019
Date of the Board of Directors' Meeting	7/31/2019
Date of the Board of Directors' Meeting	9/25/2019
Date of the Board of Directors' Meeting	10/30/2019
Date of the Board of Directors' Meeting	12/11/2019

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: March 11, 2019

COMPANHIA SIDERÚRGICA NACIONAL

By:

/ S / Benjamin Steinbruch

Benjamin Steinbruch

Chief Executive Officer

By:

/ S / Marcelo Cunha Ribeiro

Marcelo Cunha Ribeiro

Chief Financial and Investor Relations Officer

FORWARD-LOOKING STATEMENTS

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.