Executives of Canada’s Trevali Mining Corp said on Friday the company was caught off guard by a torrential downpour during the dry season last month in Burkina Faso, which left eight men trapped underground at its Perkoa zinc mine. .
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Executives of Canada’s Trevali Mining Corp said on Friday the company was caught off guard by a torrential downpour during the dry season last month in Burkina Faso, which left eight men trapped underground at its Perkoa zinc mine. .