Copper Mining equipment for sale, copper production
2021 5 18 Almost all mines exploiting large porphyry deposits produce from open pits. Chile is the world's largest copper producer, producing 5 390 thousand metric tons in 2010 as opposed to 5 520 in 2009. Chile has approximately 24% of the world's known copper reserves. Pure copper is soft and malleable; an exposed surface has a reddish orange tarnish.