Nexa Resources (NYSE: NEXA) execs sign Q2 2026 CEO and CFO certifications

Rhea-AI Filing Summary

Nexa Resources S.A. provides second-quarter 2026 CEO and CFO certifications as a foreign private issuer. The exhibits include full Form 52-109F2 certificates signed on August 5, 2026 by President and Chief Executive Officer Ignacio Rosado and Senior Vice President of Finance and Group Chief Financial Officer José Carlos del Valle.

Nexa relies on an exemption under Part 4 of National Instrument 71-102, which affects interim MD&A requirements. References in the certifications to “interim MD&A” instead refer to Nexa’s earnings release dated August 5, 2026.

Key Terms

National Instrument 71-102, Form 52-109F2, interim MD&A, foreign private issuer

4 terms

National Instrument 71-102 regulatory

"Nexa Resources S.A. relies on an exemption under Part 4 of National Instrument 71-102"

National Instrument 71-102 is a Canadian securities rule that sets disclosure, filing and governance requirements specific to investment funds (such as mutual funds and other pooled vehicles). It defines what regular reports, financial statements and notices funds must provide and when, so investors can compare offerings, monitor performance and spot risks—think of it as standardized bookkeeping and reporting rules that make separate funds’ results easier to trust and evaluate.

Form 52-109F2 regulatory

"FORM 52-109F2 CERTIFICATION OF FILINGS FULL CERTIFICATE I, Ignacio Rosado"

interim MD&A financial

"from securities legislation requirements relating to preparation, approval, filing and delivery of interim MD&A"

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

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Available on EDGAR 08/05/2026 - 03:33 PM Accepted by SEC EDGAR 08/05/2026 - 03:33 PM Learn about SEC filing dates

FAQ

What does Nexa Resources (NEXA) disclose in its August 2026 Form 6-K?

Nexa Resources S.A. discloses that its CEO and CFO signed full Form 52-109F2 certifications for second-quarter 2026. These certifications cover its continuous disclosure filings and link interim MD&A references to the earnings release dated August 5, 2026.

Who signed the certifications referenced in Nexa Resources (NEXA) Form 6-K?

The certifications are signed by Ignacio Rosado, President and Chief Executive Officer, and José Carlos del Valle, Senior Vice President of Finance and Group Chief Financial Officer. Both signatures are dated August 5, 2026, confirming responsibility for the relevant disclosure filings.

How does Nexa Resources (NEXA) treat interim MD&A in this disclosure?

Nexa relies on an exemption so that references to “interim MD&A” in the attached CEO and CFO certifications instead refer to its earnings release dated August 5, 2026. This approach is taken under Canadian disclosure rules for certain foreign issuers.

What regulatory exemption does Nexa Resources (NEXA) rely on here?

Nexa relies on an exemption under Part 4 of National Instrument 71-102, which covers continuous disclosure and other exemptions for foreign issuers. This affects requirements for preparing, approving, filing, and delivering interim MD&A in Canada.

What exhibits are included with Nexa Resources (NEXA) August 2026 report?

The exhibit index lists Exhibit 99.1 as the Nexa 2Q26 Interim CEO Certification and Exhibit 99.2 as the Nexa 2Q26 Interim CFO Certification. These exhibits contain the detailed Form 52-109F2 certifications signed on August 5, 2026.

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 August 2026

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:  August 5, 2026

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	Nexa 2Q26 - Interim CEO Certification
99.2	Nexa 2Q26 - Interim CFO Certification

Cover note to CEO and CFO Certifications

Nexa Resources S.A. (“NEXA”) relies on an exemption under Part 4 of National Instrument 71-102 Continuous Disclosure and Other Exemptions Relating to Foreign Issuers, from securities legislation requirements relating to preparation, approval, filing and delivery of interim MD&A. As a result, reference in the attached certifications to “interim MD&A” in paragraph 1 and paragraph 6 thereof is to the Earnings Release of NEXA dated August 5, 2026.

FORM 52-109F2

CERTIFICATION OF INTERIM FILINGS

FULL CERTIFICATE

I, Ignacio Rosado, President and Chief Executive Officer of Nexa Resources S.A., certify the following:

1. Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Nexa Resources S.A. (the “issuer”) for the interim period ended on June 30, 2026.

2. No misrepresentations: Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3. Fair presentation: Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4. Responsibility: The issuer’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the issuer.

5. Design: Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer(s) and I have, as at the end of the period covered by the interim filings

(a) designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

(i) material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

(ii) information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

(b) designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s GAAP.

5.1 Control framework: The control framework the issuer’s other certifying officer(s) and I used to design the issuer’s ICFR is the Committee of Sponsoring Organization of the Tradeway Commission (COSO 2013).

5.2 ICFR: N/A

5.3 Limitation on scope of design: N/A

6. Reporting changes in ICFR: The issuer has disclosed in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on April 1, 2026, and ended on June 30, 2026, that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.

Date: August 5, 2026

By:	/s/ Ignacio Rosado
	Name:	Ignacio Rosado
	Title:	President and Chief Executive Officer

Cover note to CEO and CFO Certifications

Nexa Resources S.A. (“NEXA”) relies on an exemption under Part 4 of National Instrument 71-102 Continuous Disclosure and Other Exemptions Relating to Foreign Issuers, from securities legislation requirements relating to preparation, approval, filing and delivery of interim MD&A. As a result, reference in the attached certifications to “interim MD&A” in paragraph 1 and paragraph 6 thereof is to the Earnings Release of NEXA dated August 5, 2026.

FORM 52-109F2

CERTIFICATION OF INTERIM FILINGS

FULL CERTIFICATE

I, José Carlos del Valle, Senior Vice President of Finance and Group Chief Financial Officer of Nexa Resources S.A. certify the following:

1. Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Nexa Resources S.A. (the “issuer”) for the interim period ended on June 30, 2026.

2. No misrepresentations: Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3. Fair presentation: Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4. Responsibility: The issuer’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the issuer.

5. Design: Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer(s) and I have, as at the end of the period covered by the interim filings

(a) designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

(i) material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

(ii) information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

(b) designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s GAAP.

5.1 Control framework: The control framework the issuer’s other certifying officer(s) and I used to design the issuer’s ICFR is the Committee of Sponsoring Organization of the Tradeway Commission (COSO 2013).

5.2 ICFR: N/A

5.3 Limitation on scope of design: N/A

6. Reporting changes in ICFR: The issuer has disclosed in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on April 1, 2026, and ended on June 30, 2026, that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.

Date: August 5, 2026

By:	/s/ José Carlos del Valle
	Name:	José Carlos del Valle
	Title:	Senior Vice President of Finance and Group Chief Financial Officer

Filing Exhibits & Attachments

2 documents

Press Releases

• EX-99.1 EX-99.1 13.4 KB
• EX-99.2 EX-99.2 13.4 KB