National Steel names Fabio Schvartsman future CEO

CSN appoints Benjamin Steinbruch as board chairman and names Fabio Schvartsman as CEO effective September 3, 2026.

Rhea-AI Filing Summary

NATIONAL STEEL CO (SID) reports a leadership reorganization at the top of the company. The Board of Directors elected Benjamin Steinbruch as Chairman of the Board of Directors of Companhia Siderúrgica Nacional. Effective September 3, 2026, Fabio Schvartsman will assume the role of Chief Executive Officer. The company states it will keep shareholders and the market informed of further developments related to these governance changes.

Key Figures

CEO effective date: September 3, 2026 Material fact announcement date: September 2, 2026 Brazilian corporate law reference: Article 157, paragraph 4, of Law No. 6,404/1976

3 metrics

CEO effective date September 3, 2026 Date when Fabio Schvartsman will assume the CEO position

Material fact announcement date September 2, 2026 Date stated for the material fact in São Paulo

Brazilian corporate law reference Article 157, paragraph 4, of Law No. 6,404/1976 Legal basis cited for disclosure of the material fact

Key Terms

Report of Foreign Private Issuer, CVM Resolution No. 44/2021, forward-looking statements

3 terms

Report of Foreign Private Issuer regulatory

"FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16"

A report of a foreign private issuer is a formal filing that a non‑U.S. company makes to U.S. regulators to share important business, financial, or governance information with American investors. Think of it as a regular update or press packet that keeps investors informed about events that could change a company’s value—like earnings, management changes, contracts, or regulatory developments—so investors can make timely, informed decisions.

CVM Resolution No. 44/2021 regulatory

"in compliance with article 157, paragraph 4º, of Law nº 6,404/1976 and CVM Resolution No. 44/2021"

forward-looking statements regulatory

"This press release may contain forward-looking statements."

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

FAQ

What leadership changes did SID announce in this Form 6-K?

The company announced that Benjamin Steinbruch was elected Chairman of the Board of Directors and that Fabio Schvartsman will become Chief Executive Officer effective September 3, 2026.

When will Fabio Schvartsman become CEO of SID?

Fabio Schvartsman will assume the position of Chief Executive Officer of Companhia Siderúrgica Nacional on September 3, 2026, following approval by the Board of Directors.

What position will Benjamin Steinbruch hold at SID after this change?

Benjamin Steinbruch has been elected Chairman of the Board of Directors of Companhia Siderúrgica Nacional, according to the disclosure approved by the Board of Directors.

Does the SID filing mention any changes to the CFO or Investor Relations roles?

The document is signed by Antonio Marco Campos Rabello as Chief Financial and Investor Relations Officer, and it does not announce any change to this position.

What regulations does SID cite in making this leadership announcement?

The company cites article 157, paragraph 4, of Law No. 6,404/1976 and CVM Resolution No. 44/2021 as the basis for disclosing this material fact to shareholders and the market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/03/2026 - 06:02 AM Accepted by SEC EDGAR 09/02/2026 - 06:51 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange Act of 1934

For the month of September, 2026

Commission File Number 1-14732

COMPANHIA SIDERÚRGICA NACIONAL

(Exact name of registrant as specified in its charter)

National Steel Company

(Translation of Registrant's name into English)

Av. Brigadeiro Faria Lima 3400, 20º andar
São Paulo, SP, Brazil
04538-132

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or Form 40-F.  Form 20-F ___X___ Form 40-F _______

 Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.  

Yes _______ No ___X____

COMPANHIA SIDERÚRGICA NACIONAL

Publicly Held Company

Corporate Taxpayer 33.042.730/0001-04

NIRE 35-3.0039609.0

MATERIAL FACT

Companhia Siderúrgica Nacional (“Company” or “CSN”) (B3: CSNA3; NYSE: SID), in compliance with article 157, paragraph 4º, of Law nº 6,404/1976 and CVM Resolution No. 44/2021, hereby informs its shareholders and the market in general that its Board of Directors has approved today the election of Mr. Benjamin Steinbruch to the position of Chairman of the Board of Directors of CSN. Starting September 3, 2026, Mr. Fabio Schvartsman will assume the position of Chief Executive Officer (CEO) of the Company.

The Company welcomes Mr. Fabio Schvartsman and wishes him great success in the execution of his new duties.

CSN will keep its shareholders and the market duly informed of any developments regarding this matter.

São Paulo, September 02, 2026.

Antonio Marco Campos Rabello

Chief Financial Officer and Investor Relations Executive

Companhia Siderúrgica Nacional

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: September 2, 2026

COMPANHIA SIDERÚRGICA NACIONAL
By:	/S/ Benjamin Steinbruch
	Benjamin Steinbruch Chief Executive Officer

By:	/S/ Antonio Marco Campos Rabello
	Antonio Marco Campos Rabello Chief Financial and Investor Relations Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates of future economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.