Nexa Resources (NYSE: NEXA) suspends Atacocha mine with limited zinc impact

Rhea-AI Filing Summary

Nexa Resources S.A. reports that production at its Atacocha San Gerardo open pit mine in Peru has been temporarily suspended after road access was blocked by community protest activity. Operations are limited to essential maintenance with a minimum workforce to keep the mine in safe condition.

The company states there has been no material impact on Atacocha’s production so far. Atacocha produces about 0.2 kiloton of zinc per week and accounts for less than 3% of Nexa’s total zinc production, so the disruption affects only a small portion of its overall output. Nexa says it is honoring existing agreements and is in active dialogue with the community and authorities to reach a peaceful solution.

Insights

Mining operations and ESG analyst

Small zinc mine shutdown with limited impact but social risk.

Nexa Resources has temporarily suspended production at the Atacocha San Gerardo open pit due to community protests blocking road access. The company highlights that Atacocha produces about 0.2 kiloton of zinc per week and represents less than 3% of its total zinc output, suggesting only a modest effect on group-level production.

The situation underscores ongoing social and permitting risks common in Latin American mining, as community relations can interrupt operations even without technical issues. Nexa emphasizes compliance with existing agreements and an active dialogue with both the community and authorities, positioning this as a matter it is trying to resolve cooperatively.

Because Atacocha is a small contributor to overall zinc production and Nexa reports no material impact to date, this development appears operationally contained. Future disclosures in company filings may clarify the duration of the suspension and any change in contribution from Atacocha if the blockade persists.

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 January 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: January 21, 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 Resources Provides Update on Atacocha Mine Operation

 

NEXA RESOURCES PROVIDES UPDATE ON ATACOCHA MINE OPERATION

Luxembourg, January 21, 2026 - Nexa Resources S.A. (“Nexa Resources”, “Nexa” or the “Company”) (NYSE Symbol: “NEXA”) informs that production at the Atacocha San Gerardo open pit mine is temporarily suspended.

The Joraoniyoc community has illegally blocked the road access to the mine due to protest activities, and although there is no material impact on Atacocha´s production to date, mine production has been suspended, and activities are limited to critical operations with a minimum workforce to ensure proper maintenance.

Nexa is complying with all existing agreements, pursuing an active dialogue with the community and authorities for a peaceful resolution of this situation, in addition to remaining committed to the social development of all its host communities.

On a weekly basis, Atacocha produces approximately 0.2kt of zinc, accounting for less than 3% of Nexa’s zinc production. Nexa will keep the market informed of further developments.

About Nexa

Nexa is a large-scale, low-cost, integrated polymetallic producer, with zinc as our main product. We have over 65 years of experience developing and operating mining and smelting assets in Latin America. Nexa currently owns and operates five polymetallic mines – four long-life underground (two in the Central Andes region of Peru and two in Brazil, in the state of Minas Gerais and Mato Grosso), and one open-pit in Peru. Nexa also owns and operates three smelters: two in Minas Gerais, Brazil (Três Marias and Juiz de Fora), and one in Lima, Peru (Cajamarquilla), which is the largest smelter in the Americas.

Cautionary Statement on Forward-Looking Statements

This news release contains certain forward-looking information and forward-looking statements as defined in applicable securities laws (collectively referred to in this news release as “forward-looking statements”). Forward-looking statements contained in this news release may include, but are not limited to, zinc and other metal prices and exchange rate assumptions, projected operating and capital costs, metal or mineral recoveries, head grades, mine life, production rates, and returns; the Company’s potential plans; the estimation of the tonnage, grade and content of deposits and the extent of mineral resource and mineral reserve estimates; timing of commencement of production; exploration potential and results; the timing and receipt of necessary permits for future operations; and the impacts of COVID-19 on our operations.

These statements are based on information currently available to the Company and the Company provides no assurance that actual results and future performance and achievements will meet or not differ from the expectations of management or qualified persons. All statements other than statements of historical fact are forward-looking statements. The words “believe,” “will,” “may,” “may have,” “would,” “estimate,” “continues,” “anticipates,” “intends,” “plans,” “expects,” “budget,” “scheduled,” “forecasts” and similar words are intended to identify estimates and forward-looking statements. Forward-looking statements are not guarantees and involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Actual results and developments may be substantially different from the expectations described in the forward-looking statements for a number of reasons, many of which are not under our control, among them, the activities of our competition, the future global economic situation,

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weather conditions, market prices and conditions, exchange rates, and operational and financial risks. The unexpected occurrence of one or more of the abovementioned events may significantly change the results of our operations on which we have based our estimates and forward-looking statements. Our estimates and forward-looking statements may also be influenced by, among others, legal, political, environmental, or other risks that could materially affect the potential development of the Project, including risks related to outbreaks of contagious diseases or health crises impacting overall economic activity regionally or globally, as well as risks relating to ongoing or future investigations by local authorities with respect to our business and operations and the conduct of our customers, including the impact to our financial statements regarding the resolution of any such matters.

These forward-looking statements related to future events or future performance and include current estimates, predictions, forecasts, beliefs and statements as to management’s expectations with respect to, but not limited to, the business and operations of the Company and mining production, our growth strategy, the impact of applicable laws and regulations, future zinc and other metal prices, smelting sales, capex, expenses related to exploration and project evaluation, estimation of Mineral Reserves and/or Mineral Resources, mine life and our financial liquidity.

Forward-looking statements are necessarily based upon a number of factors and assumptions that, while considered reasonable and appropriate by management and qualified persons considering their experience are inherently subject to significant uncertainties and contingencies and may prove to be incorrect. Statements concerning future production costs or volumes are based on numerous assumptions of management regarding operating matters and on assumptions that demand for products develops as anticipated, that customers and other counterparties perform their contractual obligations, full integration of mining and smelting operations, that operating and capital plans will not be disrupted by issues such as mechanical failure, unavailability of parts and supplies, labor disturbances, interruption in transportation or utilities, adverse weather conditions, and that there are no material unanticipated variations in metal prices, exchange rates, or the cost of energy, supplies or transportation, among other assumptions.

Estimates and forward-looking statements refer only to the date when they were made, and we do not undertake any obligation to update or revise any estimate or forward-looking statement due to new information, future events or otherwise, except as required by law. Estimates and forward-looking statements involve risks and uncertainties and do not guarantee future performance, as actual results or developments may be substantially different from the expectations described in the forward-looking statements. Further information concerning risks and uncertainties associated with these forward-looking statements and our business can be found in our public disclosures filed under our profile on SEDAR+ (www.sedarplus.ca) and on EDGAR (www.sec.gov).

For further information, please contact:

Investor Relations Team

ir@nexaresources.com

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FAQ

What did Nexa Resources (NEXA) announce about the Atacocha mine?

Nexa Resources announced that production at its Atacocha San Gerardo open pit mine has been temporarily suspended after road access was blocked by community protest activity, with operations limited to critical maintenance work.

How important is the Atacocha mine to Nexa Resources zinc production?

Atacocha produces approximately 0.2 kiloton of zinc per week and accounts for less than 3% of Nexas total zinc production, so it is a relatively small contributor to the companys overall output.

Has the Atacocha mine suspension materially impacted Nexa Resources so far?

Nexa Resources states that there has been no material impact on Atacochas production to date, despite the temporary suspension of mine production and restricted activities.

How is Nexa Resources responding to the Atacocha community protest?

Nexa Resources says it is complying with existing agreements, maintaining an active dialogue with the community and authorities for a peaceful resolution, and remains committed to the social development of its host communities.

What type of company is Nexa Resources (NEXA)?

Nexa Resources is a large-scale, low-cost, integrated polymetallic producer focused on zinc. It operates five polymetallic mines in Peru and Brazil and three smelters in Brazil and Peru.

Will Nexa Resources provide further updates on the Atacocha mine situation?

Yes. Nexa Resources states that it will keep the market informed of further developments related to the Atacocha mine operation.