The Company announced inaugural details of the Encierro project in the Chilean High Andes, 100 km east of the city of Vallenar and 600km north of Santiago. The deposit is a complex Miocene porphyry copper system displaying hypogene mineralisation with distinct sulfide and alteration zoning. The Encierro deposit is held in a joint venture with Barrick Gold. Antofagasta holds the majority share and operates the exploration programme.
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Notes
Exploration by Antofagasta in a joint venture with Barrick
Reported resources remain the same as reported as at the end of 2024, with an estimated 522 Mt with a grade of 0.65% copper, 0.22 g/t gold, and 74 ppm Mo (0.5% cutoff).
Media
- Jul-26: Antofagasta to seek environmental approval for Encierro, Volcanes exploration in fourth quarter (checked 3-Jul-26)
- Jun-22: updated mineral resources (checked 25-Feb-26)
Created Feb-26; updated Jul-26