The company said financial losses at the mine threaten the viability of the rest of the Cooke operations, which include four mines and three processing plants.
It was one of the worst environmental disasters in Canadian history, and now, the company behind the 2014 Mount Polley mine tailings breach is looking to make somebody pay.
Red metal production at the copper-uranium mine is expected to hit around 230,000 tonnes by 2021, but there is potential for up to 450,000 tonnes per year.
Japanese investors are buying gold to store in Switzerland because of negative interest rates and fears the yen will depreciate as the government grapples with the heaviest public debt burden in the developed world.