Codelco to invest $720m more in Chuquicamata copper mine
Chile's State-owned Codelco, the world's largest copper producer, submitted an environmental permit request on Thursday to modify its Chuquicamata Subterranea project at a cost of $720-million. "The general objective of the project is to incorporate optimizations to the original project and modifications in order to ensure that the operation of MCHS (Chuquicamata) can reach the authorized production" of 140 000 t/d, the request read.