'Overexploitation' caused sinkhole near Lundin Mining copper project, Chile government says

Chilean authorities say they can "confirm" the massive 36.5-metre diameter sinkhole which emerged on July 30 near Lundin Mining (TSX: LUN)’s Alcaparrosa copper mine is tied to mining “overexploitation".   Lundin's Chilean unit Ojos del Salado faces charges for the formation of the...

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