<SEC-DOCUMENT>0001292814-18-001534-index.html : 20180501
<SEC-HEADER>0001292814-18-001534.hdr.sgml : 20180501
<ACCEPTANCE-DATETIME>20180430212503
ACCESSION NUMBER:		0001292814-18-001534
CONFORMED SUBMISSION TYPE:	20-F
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180501
DATE AS OF CHANGE:		20180430

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:		20-F
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14732
		FILM NUMBER:		18792771

	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>20-F
<SEQUENCE>1
<FILENAME>sidform_20f.htm
<DESCRIPTION>SIDFORM_20F
<TEXT>
Document 1 - file: sidform_20f.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>imagem20180430.jpg
<TEXT>
Document 2 - file: imagem20180430.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>x18042704522600.jpg
<TEXT>
Document 3 - file: x18042704522600.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>x18042704522601.jpg
<TEXT>
Document 4 - file: x18042704522601.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>x18042704522602.jpg
<TEXT>
Document 5 - file: x18042704522602.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>x18042704522603.jpg
<TEXT>
Document 6 - file: x18042704522603.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>x18042704522604.jpg
<TEXT>
Document 7 - file: x18042704522604.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>x18042704522800.jpg
<TEXT>
Document 8 - file: x18042704522800.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>x18042704522900.jpg
<TEXT>
Document 9 - file: x18042704522900.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>x18042704522901.jpg
<TEXT>
Document 10 - file: x18042704522901.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>x18042707071200.jpg
<TEXT>
Document 11 - file: x18042707071200.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>deloitte.gif
<TEXT>
Document 12 - file: deloitte.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>logo2.gif
<TEXT>
Document 13 - file: logo2.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>logomrs.gif
<TEXT>
Document 14 - file: logomrs.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>mrsimg01.gif
<TEXT>
Document 15 - file: mrsimg01.gif

</DOCUMENT>
</SEC-DOCUMENT>