Lundin Shares Tumble After Miner Cuts 2026 Gold, Copper Guidance

Lundin Mining Corp. shares fell the most in more than a year after the Canadian company cut its output guidance for gold and copper, citing lower underground minning rates at its Candelaria site.

The Vancouver-based miner said on Wednesday that it expects to produce 134,000 to 149,000 ounces of gold and 310,000 to 335,000 tons of copper in 2026, down from prior forecasts of 144,000 to 159,000 ounces and 320,000 to 348,000, respectively.