Workers at the Escondida mine in Chile edge closer to ...
2021-8-2 · The Escondida mine is the biggest copper-producing mine globally, with proven reserves of 34.7 million tonnes, of which 22.5 million tonnes is estimated to be recoverable, representing 5% of the world''s supply of the metal. The mine is of critical importance to Chile, with copper production accounting for 10%-15% of the country''s GDP.