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About the

We are presenting the annual performance report of Nexa Resources S.A. for the period from January 1 to December 31, 2020. This report has been prepared in accordance with International Integrated Reporting Council (IIRC) guidelines and the Global Reporting Initiative (GRI) Standards, Essential option. The previous edition, which refers to the year of 2019, was published in April 2020. The content includes economic, social and environmental aspects, as well as the risks and opportunities mapped and considered of interest by shareholders and other stakeholders. GRI 102-1, 102-50, 102-51, 102-52 ODS 12.6

The financial indicators are reported in accordance with the International Financial Reporting Standards (IFRS), while social and environmental data have been prepared according to Brazilian standards applied to labor and environmental issues. The greenhouse gas disclosures have been prepared in accordance with the GHG Protocol calculation methodology. The Sustainability and Corporate Affairs team was responsible for the general content, as well as for complementary information, and the document has been subjected to third part assurance by PwC Brazil, in order to improve accuracy of data presented throughout the Report . The contracting of assurance services by an independent third party for the information contained in the Annual Report, requires the approval of the company’s Audit Committee and the Board of Directors. GRI 102-56

The consolidated financial statements and the external audit report are available at: (ri.nexaresources.com and riperu.nexaresources.com) within the financial information section.

Cerro Lindo Unit