Zambia's state power company reduced electricity supply to two First Quantum copper mines because the mining firm had failed to pay the new flat electricity tariff.
Copper above $3.00 after former workers torch dozens of buildings, vehicles at Freeport's Indonesia operations blocking access to world number two mine.
The miner, Africa's biggest gold producer, reported a loss of $176 million in the six months to June 30, compared to a profit of $52 million in the same period last year.
Measure is part of a broader plan to restore profitability at the division, which saw adjusted operating profit fell by 37% in the second quarter of this year.
Plans to extend the life of the Voisey's Bay nickel mine in northern Labrador by moving operations underground – already once delayed – are now on hold.
Investors in Kingsgate Consolidated Ltd. (ASX:KCN) were allowed to gasp for air on Friday after being underwater on the stock due to problems with its mine in Thailand.