    <SEC-DOCUMENT>0001292814-19-004077-index.html : 20191204
    <SEC-HEADER>0001292814-19-004077.hdr.sgml : 20191204
    <ACCEPTANCE-DATETIME>20191204090004
    ACCESSION NUMBER:		0001292814-19-004077
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		52
    CONFORMED PERIOD OF REPORT:	20191231
    FILED AS OF DATE:		20191204
    DATE AS OF CHANGE:		20191204

    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:		191267438

    	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>sid20191203_6k.htm
    <DESCRIPTION>FORM 6-K
    <TEXT>
    Document 1 - file: sid20191203_6k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>sid11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: sid11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>sid14.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: sid14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>sid20191203_6kx10x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: sid20191203_6kx10x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>sid20191203_6kx12x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: sid20191203_6kx12x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>sid20191203_6kx13x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: sid20191203_6kx13x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>sid20191203_6kx15x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: sid20191203_6kx15x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>sid20191203_6kx16x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: sid20191203_6kx16x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>sid20191203_6kx17x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: sid20191203_6kx17x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>sid20191203_6kx18x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: sid20191203_6kx18x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>sid20191203_6kx19x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: sid20191203_6kx19x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>sid20191203_6kx1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: sid20191203_6kx1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>sid20191203_6kx20x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: sid20191203_6kx20x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>sid20191203_6kx21x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: sid20191203_6kx21x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>sid20191203_6kx22x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: sid20191203_6kx22x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>sid20191203_6kx23x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: sid20191203_6kx23x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>sid20191203_6kx24x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: sid20191203_6kx24x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>sid20191203_6kx25x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: sid20191203_6kx25x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>sid20191203_6kx26x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: sid20191203_6kx26x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>sid20191203_6kx27x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: sid20191203_6kx27x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>sid20191203_6kx28x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: sid20191203_6kx28x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>sid20191203_6kx29x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: sid20191203_6kx29x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>sid20191203_6kx2x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: sid20191203_6kx2x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>sid20191203_6kx30x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: sid20191203_6kx30x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>sid20191203_6kx31x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: sid20191203_6kx31x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>sid20191203_6kx32x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: sid20191203_6kx32x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>sid20191203_6kx33x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: sid20191203_6kx33x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>sid20191203_6kx34x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: sid20191203_6kx34x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>sid20191203_6kx35x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: sid20191203_6kx35x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>sid20191203_6kx36x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: sid20191203_6kx36x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>sid20191203_6kx37x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: sid20191203_6kx37x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>sid20191203_6kx38x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: sid20191203_6kx38x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>sid20191203_6kx39x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: sid20191203_6kx39x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>sid20191203_6kx3x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: sid20191203_6kx3x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>sid20191203_6kx40x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: sid20191203_6kx40x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>sid20191203_6kx41x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: sid20191203_6kx41x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>sid20191203_6kx42x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: sid20191203_6kx42x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>sid20191203_6kx43x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: sid20191203_6kx43x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>sid20191203_6kx44x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: sid20191203_6kx44x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>sid20191203_6kx45x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: sid20191203_6kx45x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>sid20191203_6kx46x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: sid20191203_6kx46x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>42
    <FILENAME>sid20191203_6kx47x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 42 - file: sid20191203_6kx47x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>43
    <FILENAME>sid20191203_6kx48x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 43 - file: sid20191203_6kx48x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>44
    <FILENAME>sid20191203_6kx49x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 44 - file: sid20191203_6kx49x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>45
    <FILENAME>sid20191203_6kx4x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 45 - file: sid20191203_6kx4x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>46
    <FILENAME>sid20191203_6kx50x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 46 - file: sid20191203_6kx50x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>47
    <FILENAME>sid20191203_6kx51x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 47 - file: sid20191203_6kx51x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>48
    <FILENAME>sid20191203_6kx5x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 48 - file: sid20191203_6kx5x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>49
    <FILENAME>sid20191203_6kx6x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 49 - file: sid20191203_6kx6x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>50
    <FILENAME>sid20191203_6kx7x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 50 - file: sid20191203_6kx7x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>51
    <FILENAME>sid20191203_6kx8x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 51 - file: sid20191203_6kx8x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>52
    <FILENAME>sid20191203_6kx9x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 52 - file: sid20191203_6kx9x1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>