Sierra Gorda
Mining
Type
Operating
Status
🇨🇱 Chile, Antofagasta (Andean Porphyry Belt)
Country
Project information
As at 31 March 2026
Aggregation level:
Asset
Aggregation level:
Asset
Report standard:
Sec S K 1300
Report standard:
Sec S K 1300
Ownership %:
55
Ownership %:
55
Operator:
No
Operator:
No
Operator name:
Sierra Gorda S.C.M. (KGHM 55% / South32 45% JV)
Operator name:
Sierra Gorda S.C.M. (KGHM 55% / South32 45% JV)
Extraction:
Open Pit
Extraction:
Open Pit
Description
As at 31 March 2026
Sierra Gorda is a large open-pit copper-molybdenum mine in Chile's Antofagasta Region (Atacama Desert), operated as a joint venture between the KGHM Polska Miedź Group (55%) and Australia's South32 (45%). The mine operates entirely on renewable-energy-generated power. In Q1 2026, work continued on preparing design documentation for a fourth ball mill. Production was stable on copper while molybdenum production rose 89% due to improved recoveries despite heavy rainfall (February) and lower Mo grade in processed ore. Accounted for by KGHM as an equity-method joint venture.
Mining metrics
Multiple effective dates
Premium access required
This content is available on a paid plan.
Upgrade to Premium to unlock this content.