<SEC-DOCUMENT>0001292814-19-003990-index.html : 20191126
<SEC-HEADER>0001292814-19-003990.hdr.sgml : 20191126
<ACCEPTANCE-DATETIME>20191126154514
ACCESSION NUMBER:		0001292814-19-003990
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20190930
FILED AS OF DATE:		20191126
DATE AS OF CHANGE:		20191126

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:		191250549

	BUSINESS ADDRESS:	
		STREET 1:		RUA LAURO MULLER
		STREET 2:		116 36 ANDAR
		CITY:			RIO DE JANEIRO RJ BR
		STATE:			D5
		ZIP:			00000
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>siditr3q19_6k.htm
<DESCRIPTION>QUARTERLY FINANCIAL INFORMATION - SEPTEMBER 30, 2019 - CIA SIDERURGICA NACIONAL
<TEXT>
Document 1 - file: siditr3q19_6k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>fp21a.jpg
<TEXT>
Document 2 - file: fp21a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>fp21b.jpg
<TEXT>
Document 3 - file: fp21b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>fp22a.jpg
<TEXT>
Document 4 - file: fp22a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>fp24a.jpg
<TEXT>
Document 5 - file: fp24a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>fp26a.jpg
<TEXT>
Document 6 - file: fp26a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>fp26b.jpg
<TEXT>
Document 7 - file: fp26b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>fp26c.jpg
<TEXT>
Document 8 - file: fp26c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>fp27a.jpg
<TEXT>
Document 9 - file: fp27a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>fp27b.jpg
<TEXT>
Document 10 - file: fp27b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>fp28a.jpg
<TEXT>
Document 11 - file: fp28a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>logo01.jpg
<TEXT>
Document 12 - file: logo01.jpg

</DOCUMENT>
</SEC-DOCUMENT>