The Caribou mine, 50 km west of Bathurst, NB, was wholly owned by Trevali. The underground operation provided 3,000 t/d of ore to the processing plant, which used sulphide flotation recovery. There were also a tailings management facility and laboratories on the property. At the end of 2021, the proven and probable reserves stood at 4.4 million tonnes grading 5.85% zinc, 2.17% lead and 65.60 g/t silver.
The volcanogenic massive sulphide deposit was originally discovered in 1955. Trevali, which restarted production in February 2021, was only one of several owners since 2006.
Trevali elected to close its 90%-owned Perkoa zinc-lead-silver mine in Burkina Faso following flash flooding that resulted in the deaths of eight miners in April 2022.
Trevali is currently mining at the 90%-owned Rosh Pina zinc-lead-silver mine in Namibia. The company has plans to expand mill throughput to 1.3 million tonnes of ore annually from 700,000 tonnes….
