Centerra trims production expectations on Mt Milligan water risks

Continued water supply issues at the Mount Milligan mine, in British Columbia, have forced gold and copper producer Centerra Gold to trim its gold production guidance by 20 000 oz and its copper forecast by about five-million pounds. The Mount Milligan mine continues to suffer from limited water supply, a situation which was exacerbated by minimal inflow from snow melt and dry conditions this year. Centerra has applied for regulatory approval to access water sources, but the company warned on Wednesday that should it not receive these approvals on time, the mine would have to operate on only one ball mill to conserve water, reducing throughput to 30 000 t/d in the fourth quarter.