World’s largest silver and eighth biggest copper producer KGHM completes pre-stripping of Sierra Gorda mine in Chile

Published 9, April 2014 at 900 × 454 in World’s largest silver and eighth biggest copper producer KGHM completes pre-stripping of Sierra Gorda mine in Chile

World’s largest silver and eighth biggest copper producer KGHM completes pre-stripping of Sierra Gorda mine in Chile

World’s largest silver and eighth biggest copper producer KGHM completes pre-stripping of Sierra Gorda mine in Chile

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