Mining giant Rio Tinto is considering the future of its key stake in a company that has lost the right to mine in Bougainville.

Bougainville Copper was stripped of all exploration and mining licences by the autonomous Bougainville government last week. “Rio Tinto has decided now is an appropriate time to review all options for its 53.83 per cent stake in Bougainville Copper,” the mining giant said on Monday. Bougainville Copper owns the Panguna…