    <SEC-DOCUMENT>0001292814-17-003430-index.html : 20171226
    <SEC-HEADER>0001292814-17-003430.hdr.sgml : 20171226
    <ACCEPTANCE-DATETIME>20171226061752
    ACCESSION NUMBER:		0001292814-17-003430
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		13
    CONFORMED PERIOD OF REPORT:	20170630
    FILED AS OF DATE:		20171226
    DATE AS OF CHANGE:		20171226

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NATIONAL STEEL CO
    		CENTRAL INDEX KEY:			0001049659
    		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310]
    		IRS NUMBER:				000000000
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14732
    		FILM NUMBER:		171273609

    	BUSINESS ADDRESS:
    		STREET 1:		RUA LAURO MULLER
    		STREET 2:		116 36 ANDAR
    		CITY:			RIO DE JANEIRO RJ BR
    		STATE:			D5
    		ZIP:			00000
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    <FILENAME>sidpr2q17_6k.htm
    <DESCRIPTION>PR 2Q17
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    Document 1 - file: sidpr2q17_6k.htm

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    <FILENAME>sidpr2q17_6kcsner2t17engx2x1.jpg
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    <TEXT>
    Document 4 - file: sidpr2q17_6kcsner2t17engx2x1.jpg

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