# Filing Detail

Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0002121945-26-000001
Filing Date
2026-03-18
Accepted
2026-03-18 17:28:43
Documents
4
Period of Report
2025-12-09

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | PRIMARY DOCUMENT | primary_doc.html | 3 |
1 | PRIMARY DOCUMENT | primary_doc.xml | 3 | 1721
2 | POWER OF ATTORNEY | martinez.htm | EX-24 | 325
3 |  | martinez1.jpg | GRAPHIC | 376753
4 |  | martinez2.jpg | GRAPHIC | 387122
| Complete submission text file | 0002121945-26-000001.txt |  | 1056038

Mailing Address BRIGADEIRO FARIA LIMA AVENUE, 3400 ITAIM BIBI - 19/20 FLOOR SAO PAULO SAO PAULO Brazil 04538-132
Business Address BRIGADEIRO FARIA LIMA AVENUE, 3400 ITAIM BIBI - 19/20 FLOOR SAO PAULO SAO PAULO Brazil 04538-132 55 11 3049-7585
NATIONAL STEEL CO (Issuer) CIK: 0001049659 (see all company filings)

EIN.: 000000000 | State of Incorp.: D5 | Fiscal Year End: 1231
SIC: 3310 Steel Works, Blast Furnaces & Rolling & Finishing Mills
(CF Office: 04 Manufacturing)

Mailing Address AVENIDA BRIGADEIRO FARIA LIMA, 3400 20 ANDAR SAO PAULO SAO PAULO Brazil 04538-132
Business Address
Barbosa Martinez Luis Fernando (Reporting) CIK: 0002121945 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-14732 | Film No.: 26770618