The Chuquicamata, Andina, Salvador and El Teniente mines were without power, and its other mines were using backup power generation to operate on a partial basis, Codelco said.
Escondida, the world’s largest copper mine, was without electricity, a source close to the matter told Reuters, while state-owned copper miner Codelco said all its mines had been affected.
The outage hit areas from the mining-intensive north to the central and southern regions home to most of the Andean country’s population, and operations at key copper mines were affected.
Authorities at Santiago International Airport said terminals had switched to emergency power but warned that ‘some flights could be impacted’.
A massive power outage across Chile plunged 90% of the country into complete darkness on Tuesday.
