Copper: Chile imposes measures against Lundin Mining over giant sinkhole

Chile's environmental regulator SMA said Tuesday it has issued a series of measures against a copper mine owned by Canada's Lundin Mining Corp after a sinkhole opened up near one of the company's mines. The SMA ordered six "urgent and transitional" measures as it continues to investigate the causes of the 36.5-meter-diameter sinkhole in Tierra […]