NATIONAL STEEL CO

FY: Dec 31 2025

FY: Dec 31 2024

FY: Dec 31 2023

FY: Dec 31 2022

FY: Dec 31 2022

FY: Dec 31 2021

FY: Dec 31 2021

FY: Dec 31 2020

FY: Dec 31 2019

FY: Dec 31 2019

FY: Dec 31 2018

FY: Dec 31 2018

FY: Dec 31 2017

FY: Dec 31 2017

FY: Dec 31 2016

FY: Dec 31 2016

FY: Dec 31 2015

FY: Dec 31 2015

FY: Dec 31 2015

FY: Dec 31 2014

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Notice of Effectiveness

Registration statement under the Securities Act of 1933 for depositary shares evidenced by American depositary receipts

Post-effective amendment to an American depositary receipts registration statement

Post-effective amendment to an American depositary receipts registration statement

Registration statement for American depositary receipts, effective on filing

Registration statement for American depositary receipts, effective on filing

Registration statement for American depositary receipts, effective on filing

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Schvartsman Fabio

Steinbruch Benjamin

Teixeira de Freitas Pedro Van Langendonck

Franklin Fabiam

Nakano Yoshiaki

Vieira Maia Antonio Bernardo

Campos Rabello Antonio Marco

Ferreira Lara Augusto Cesar

Ethel Sobrinho Miguel

Salama David Moise

Garcia Diniz Eneas

Bautista da Nova Moreira Rogerio

Barbosa Martinez Luis Fernando

Daher Filho Tufi

NATIONAL STEEL CO

NATIONAL STEEL CO

NATIONAL STEEL CO

NATIONAL STEEL CO

VICUNA STEEL METALLURGY CO

STEINBRUCH BENJAMIN

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Letter from the SEC

Correspondence with the SEC