Companhia Siderúrgica Nacional (National Steel Company), the Brazilian steelmaker listed on NYSE:SID and B3:CSNA3, filed a Form 6-K on October 30, 2026, disclosing that it has entered into an exclusivity agreement with Huaxin Building Materials Group Co. for the potential sale of its cement subsidiary, CSN Cimentos Brasil S.A.

Key Highlights

  • Exclusivity period: Companhia Siderúrgica Nacional entered into a 10-day exclusivity agreement with Huaxin Building Materials Group Co. on October 30, 2026.
  • Enterprise value: The exclusivity agreement contemplates an enterprise value of R$ 12.7 billion for CSN Cimentos Brasil S.A.
  • Buyer selection: According to the filing, Huaxin submitted the most advantageous proposal as part of a competitive process launched in March 2026.
  • Signing timeline: The company disclosed it intends to sign the definitive documents "within a matter of days."
  • Prior disclosures: The filing follows material facts disclosed on January 15, 2026 and August 10, 2026, and market notices on April 16, 2026, August 12, 2026, and October 20, 2026.
  • Regulatory basis: The disclosure was made pursuant to Article 157, Paragraph 4, of Law No. 6,404/1976 and CVM Resolution No. 44/2021.

Companhia Siderúrgica Nacional Moves Toward CSN Cimentos Divestiture

Companhia Siderúrgica Nacional, known in English as National Steel Company and operating across steel production and related segments including cement, disclosed in the October 30, 2026 Form 6-K that it has signed an exclusivity agreement with Huaxin Building Materials Group Co. for a period of 10 days. The agreement is directed at finalizing definitive documents for the sale of shares issued by CSN Cimentos Brasil S.A., the company's cement business. The enterprise value contemplated under the exclusivity agreement is R$ 12.7 billion.

According to the filing, Huaxin was selected after submitting the most advantageous proposal in a competitive process that the company launched in March 2026. The Form 6-K further notes that this disclosure follows a series of prior communications to the market, including material facts released on January 15, 2026 and August 10, 2026, as well as market notices on April 16, 2026, August 12, 2026, and October 20, 2026. The company, headquartered at Av. Brigadeiro Faria Lima 3400, São Paulo, Brazil, stated it intends to complete the signing of definitive documents within a matter of days and will keep investors and the market informed of any material developments in accordance with applicable law.

The filing contains forward-looking statements, which the company notes are not historical facts and are based on management's current views and estimates. As stated in the filing, "there is no guarantee that the expected events, trends or results will actually occur," and such statements are subject to risks, uncertainties, and assumptions that could cause actual results to differ materially from current expectations.

What Was Disclosed

Companhia Siderúrgica Nacional (National Steel Company), listed at NYSE:SID, filed a Form 6-K on October 30, 2026, disclosing a 10-day exclusivity agreement with Huaxin Building Materials Group Co. for the sale of CSN Cimentos Brasil S.A. at a contemplated enterprise value of R$ 12.7 billion.