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El Tesoro (In Operation)

Project Stages

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Early Works
In Construction
Current Stage In production
Project Details


The El Tesoro Mirador oxide project aims at securing operations at Antofagasta Minerals' El Tesoro copper mine until 2022 by processing ores coming from Mirador, a new deposit at the site. It includes mining ore from the Mirador deposit, which has higher grades than the ore currently being processed at the mine's plants. Ore from the project will be processed on the existing Minera El Tesoro heap leach pads for copper extractions and cathode will be produced in the existing MET electro-winning facility.

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Principal Works

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Key Specs

Full Name
El Tesoro (In Operation)
Project Type
Copper, Open pit mining
Development Phase
In production
Project Status
Project Capacity
95,000  t/y (tons per year)  Copper
 Open pit mining
US$ 78mn
Completion Date

The El Tesoro deposit is located 190km northeast of the city of Antofagasta and 21km northeast of Sierra Gorda, at an average elevation of 2,300m, in northern Chile's region II.

* The map coordinates provided above represent the approximate latitude and longitude, and not the exact location, of the project in question.


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Owner / operator
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