Facility
Codelco El Teniente Mine & Smelter (Machali, O'Higgins)
El Teniente, located 44 km east of Rancagua, O'Higgins Region, Chile, is the world's largest underground copper mine. Operated by Codelco. Has integrated smelter on-site. Production expansion plans (Nuevo Nivel Mina project) have faced repeated delays due to engineering challenges and funding constraints. El Teniente is one of the mines that experienced geomechanical problems contributing to Codelco's overall production decline since 2004 peak levels.
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Inputs produced
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Goods downstream
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Incidents on record
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Stories
What's produced here
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