Pyrites Plant

Ownership: 100% Fresnillo plc
Location: Zacatecas, Fresnillo District
Facilities: Leaching plant
Commercial Production: 1H18
Anticipated Production: Annual average 3.5 moz silver and 13.0 koz gold
Capex: US$ 155 million


Overview and Key developments:

  • The project will improve overall recoveries of gold and silver by processing historical and ongoing tailings from Fresnillo and Saucito mines

  • The plant will froth float pyrite concentrates that will be leached in a 2,000 tpd dynamic leaching plant and Merrill Crowe plant to produce precipitates

  • First stage completed: commissioned leaching plant at Saucito on time (2Q18), following a US$54.6 million investment

  • Second stage: Construction of the flotation plant at Fresnillo expected 2H20, delayed due to a longer than anticipated permitting process