Swiss mining giant Glencore is set to close its copper mining operations in Mount Isa by the end of 2025, which will result in the loss of about 1200 jobs, but it will keep its refinery and smelters open in North Queensland.

With global miners struggling to contain costs and boost profitability amid increasing economic uncertainty, Glencore on Wednesday announced its three underground copper mines in Mount Isa will be closed by the second half of 2025.