The results come a week after CEO Ulf Quellmann resigned amid a protracted dispute between the company and its top shareholder, Rio Tinto, over funding for the underground expansion of the Oyu Tolgoi copper-gold mine.

Oyu Tolgoi is one of the world`s largest copper-gold-silver mines. Rio owns 51% of Turquoise Hill, which in turn owns 66% of the mine. The rest of the mine is owned by government of Mongolia.

Turquoise on Monday also cut its 2021 capital expenditure outlook for the open-pit mine to between $110-million and $140-million from a prior range of about $120-million to $160-million, to reflect the deferral of certain non-critical projects.

Copper production rose 26.4% to 41 600 t in the fourth quarter, while gold production surged 266.7% to 88 000 oz, the company said.

Copper prices rose 21.7% and gold prices rose 26.5% as parts of the world, particularly China, began to recover from the Covid-19 pandemic. Copper demand is closely linked to economic health.

All-in sustaining costs halved to $1.45 per pound of copper produced in the quarter, the company said.

Rio Tinto-controlled Turquoise said income attributable to owners of the company was $159.9-million, or 79c a share, for the three months ended December 31, compared with $113.1-million, or 56c a share, a year earlier.

Analysts on average were expecting profit to fall to 41 cents per share, according to Refinitiv IBES.