    <SEC-DOCUMENT>0002121945-26-000001-index.html : 20260318
    <SEC-HEADER>0002121945-26-000001.hdr.sgml : 20260318
    <ACCEPTANCE-DATETIME>20260318172843
    ACCESSION NUMBER:		0002121945-26-000001
    CONFORMED SUBMISSION TYPE:	3
    PUBLIC DOCUMENT COUNT:		4
    CONFORMED PERIOD OF REPORT:	20251209
    FILED AS OF DATE:		20260318
    DATE AS OF CHANGE:		20260318

    REPORTING-OWNER:

    	OWNER DATA:
    		COMPANY CONFORMED NAME:			Barbosa Martinez Luis Fernando
    		CENTRAL INDEX KEY:			0002121945
    		ORGANIZATION NAME:

    	FILING VALUES:
    		FORM TYPE:		3
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14732
    		FILM NUMBER:		26770618

    	MAIL ADDRESS:
    		ADDRESS IS A NON US LOCATION: 	YES
    		STREET 1:		AVENIDA BRIGADEIRO FARIA LIMA, 3400
    		STREET 2:		20 ANDAR
    		CITY:			SAO PAULO
    		NON US STATE TERRITORY:  	SAO PAULO
    		PROVINCE COUNTRY:   	D5
    		ZIP:			04538-132

    ISSUER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NATIONAL STEEL CO
    		CENTRAL INDEX KEY:			0001049659
    		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310]
    		ORGANIZATION NAME:           	04 Manufacturing
    		EIN:				000000000
    		STATE OF INCORPORATION:			D5
    		FISCAL YEAR END:			1231

    	BUSINESS ADDRESS:
    		ADDRESS IS A NON US LOCATION: 	YES
    		STREET 1:		BRIGADEIRO FARIA LIMA AVENUE, 3400
    		STREET 2:		ITAIM BIBI - 19/20 FLOOR
    		CITY:			SAO PAULO
    		NON US STATE TERRITORY:  	SAO PAULO
    		PROVINCE COUNTRY:   	D5
    		ZIP:			04538-132
    		BUSINESS PHONE:		55 11 3049-7585

    	MAIL ADDRESS:
    		ADDRESS IS A NON US LOCATION: 	YES
    		STREET 1:		BRIGADEIRO FARIA LIMA AVENUE, 3400
    		STREET 2:		ITAIM BIBI - 19/20 FLOOR
    		CITY:			SAO PAULO
    		NON US STATE TERRITORY:  	SAO PAULO
    		PROVINCE COUNTRY:   	D5
    		ZIP:			04538-132
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>3
    <SEQUENCE>1
    <FILENAME>primary_doc.xml
    <DESCRIPTION>PRIMARY DOCUMENT
    <TEXT>
    Document 1 - file: primary_doc.html

    Document 1 - RAW XML: primary_doc.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-24
    <SEQUENCE>2
    <FILENAME>martinez.htm
    <DESCRIPTION>POWER OF ATTORNEY
    <TEXT>
    Document 2 - file: martinez.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>martinez1.jpg
    <TEXT>
    Document 3 - file: martinez1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>martinez2.jpg
    <TEXT>
    Document 4 - file: martinez2.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>