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Nexa Resources S.A.

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Summary

Project:

Vazante

Deposit:Vazante
Location:Brazil
Commodities:Zinc-Silver-Lead
Date:3/20/2020
Report Code:NI43-101
Report Type:Resource Estimation
Project Stage:Active Mining & Production
Report details:20-3-2020: Nexa Resources S.A. announces a Resource Estimation report for its Vazante deposit at the Vazante project. Updated Mineral Resource Estimate for Project. Luxembourg, March 20, 2020 - Nexa Resources S.A. (“Nexa Resources” or “Nexa” or the “Compa
Resources:(Reserves, P+P): 17.56Mt @ 9.08% Zn, 13.0g/t Ag, 0.26% Pb
CP/QP:[Overall Report]: Jose Antonio Lopes (Internal)
ABSTRACT:Luxembourg, March 20, 2020 - Nexa Resources S.A. (“Nexa Resources” or “Nexa” or the “Company”) (NYSE and TSX Symbol: “NEXA”) announces its 2019 Year End Mineral Reserves and Mineral Resources relating to its operations and projects located in Peru and Brazil. MINERAL RESERVES The following table shows our estimates of Mineral Reserves prepared with an effective date of December 31, 2019 (except as indicated below) and in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) Definition Standards on Mineral Resources and Mineral Reserves dated May 10, 2014 (“2014 CIM Definition Standards”), whose definitions are incorporated by reference in National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”), for the metals indicated per mine and project. Such information may not be comparable to similar information prepared in accordance with Industry Guide 7 that is presented in our annual report on Form 20-F. Mineral Reserves are expressed on a 100% basis. The Qualified Persons for the estimation of the Mineral Reserves are: Cerro Lindo, El Porvenir, Atacocha (u/g and o/p) and Vazante - Thiago N. Teixeira, B.Eng., FAusIMM, a Nexa Resources employee and the Aripuanã project – Jason Cox, P.Eng., Roscoe Postle Associates Inc. (RPA), an independent consulting firm.

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