Luxembourg, July 21, 2021 - Nexa Resources S.A. ('Nexa Resources', 'Nexa', or 'Company') is pleased to provide today the drilling and assay results from the second quarter of 2021. This document contains forward-looking statements. Summary Nexa's Mineral Exploration program for 2021 comprises a total of 111,000 meters of exploratory drilling, of which 26,533 meters were executed in the second quarter of 2021 through 21 operating drill rigs, totaling 44,404 meters of exploratory drilling in 1H21. The program in Peru accounts for 69,000 meters, in Brazil for 30,000 meters and in Namibia for 12,000 meters. In Peru, 23,131 meters were drilled in 2Q21 with 14 rigs, totaling 33,998 meters in 1H21. At the Pasco Complex, the exploration was focused at the Sara Sur target in El Porvenir with thick and high grade new intersections. At Cerro Lindo, drilling in 2Q21 has remained focused at the Pucasalla target, aiming to expand the new VMS discovery at the site and near mine underground ore body expansion at orebody 9 and 5B.