– NEXA RESOURCES PERÚ S.A.A. –

Numerical hydrogeological model at the tailings beach zone for the Cerro Lindo Mining Unit
Chincha/Ica/Perú
November 2021 – December 2022

Geophysical Study for the Santa Rosa Mining Unit
Concepción/Junín/Perú
August – September 2021

Hydrogeological study for closure of the Santa rosa Mining Unit
Concepción/Junín/Perú
June 2021 – December 2022

Hydrogeological Study Tailings Beach Station Wells Zone -Jahuay – Cerro Lindo Mining Unit
Chincha/Ica/Perú
March – November 2021
Development of the ANA Dossier (Attachment 5) for the Cerro Lindo Mining Unit
Chincha/Ica/Perú
March - April 2021

Hydrogeologicalstudy for closure of the Sinaycocha Mining Unit
Junín/Perú
August 2020 – December 2022

Development of the ITS for the Sinaycocha Project – Hydrogeological Drillings
Junín/Perú
March 2020 – June 2021

Accompaniment during groundwater sampling in piezometers and geophysical study during OEFA supervision – Cerro Lindo Mining Unit
Chincha/Ica/Perú
August – September 2019

Geophysical Electrical Survey Tomography at the Cerro Lindo Mining Unit
Chincha/Ica/Perú
July – October 2019
Conceptual definition of Hydrochemical drillings depths – Cerro Lindo Mining Unit
Chincha/Ica/Perú
July – October 2019

Piezometer design and supervision of insulation Cerro Lindo Mining Unit
Chincha/Ica/Perú
February – March 2019