Nexa Resources (NYSE: NEXA) files 3Q25 CEO and CFO certifications

Rhea-AI Filing Summary

Nexa Resources S.A. furnished a Form 6-K for October 2025 that primarily provides certifications from its interim chief executive and chief financial officers related to its third quarter 2025 (3Q25) reporting.

Form 6-K: How Foreign Companies Report to the SEC →

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For the Month of October 2025

Nexa Resources S.A.

(Exact Name as Specified in its Charter)

       N/A       

(Translation of Registrant’s Name)

37A, Avenue J.F. Kennedy
L-1855, Luxembourg
Grand Duchy of Luxembourg
(Address of principal executive offices)

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 if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____

Indicate by check mark whether by furnishing the information contained in this Form, the registrant 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  

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): Not applicable.

SIGNATURES

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:  October 30, 2025

Nexa Resources S.A.

By:/s/ José Carlos del Valle

Name: José Carlos del Valle

Title: Senior Vice President of Finance and Group Chief Financial Officer

EXHIBIT INDEX

Exhibit	Description of Exhibit
99.1 99.2	Nexa 3Q25 - Interim CEO Certification Nexa 3Q25 - Interim CFO Certification

FAQ

What did Nexa Resources (NEXA) file in this Form 6-K?

Nexa Resources filed a Form 6-K that mainly furnishes its Nexa 3Q25 interim CEO and interim CFO certifications. These certifications typically support the company’s third quarter 2025 reporting and confirm management’s review and responsibility for disclosed information.

Which executives are referenced in Nexa Resources’ 3Q25 Form 6-K?

The Form 6-K identifies Nexa’s Senior Vice President of Finance and Group Chief Financial Officer, José Carlos del Valle, and includes separate Nexa 3Q25 interim CEO and interim CFO certification exhibits supporting the company’s third quarter 2025 disclosure package.

Does the Nexa Resources (NEXA) Form 6-K include financial results?

The excerpted Form 6-K text does not contain specific financial figures. Instead, it focuses on administrative details and lists exhibits providing Nexa 3Q25 interim CEO and CFO certifications, which typically accompany financial or operational disclosures provided elsewhere.

Who signed the Nexa Resources Form 6-K for October 2025?

The Form 6-K was signed on behalf of Nexa Resources S.A. by José Carlos del Valle. He is identified as Senior Vice President of Finance and Group Chief Financial Officer, indicating responsibility for the company’s financial reporting processes and related certifications.

What exhibits accompany Nexa Resources’ 3Q25 Form 6-K?

The exhibit index lists two documents: a Nexa 3Q25 interim CEO certification and a Nexa 3Q25 interim CFO certification. These exhibits formally document management’s attestations connected to the company’s third quarter 2025 reporting obligations.