Initial Statement of Beneficial Ownership

This filing is an initial statement of beneficial ownership for Fabio Schvartsman, the Chief Executive Officer of NATIONAL STEEL CO (SID). The report indicates that Mr. Schvartsman has no securities owned directly, as noted by "noSecuritiesOwned": "1". The filing also includes a Power of Attorney document, designating an attorney-in-fact for Mr. Schvartsman. The period of report is September 3, 2026, and the signature date is September 18, 2026.