Exploration drilling at the Mount Polley copper-gold mine in central B.C. Imperial Metals photo
Imperial Metals (TSX: III) soared to its highest in nearly four years on Thursday on the back of encouraging results from this year’s diamond drilling at the Mount Polley mine in south-central British Columbia.
The 2025 exploration centres on the C2 zone, located immediately south of the Cariboo pit where mining is being carried out. The ongoing work focuses on filling the gaps in historic drilling to support the design of an expanded pit, as well as target a higher-grade zone at depth.
The initial drilling returned a notable interval of 152.5 metres grading 0.46% copper and 0.97 g/t gold starting from a depth of 282.5 metres, including 85 metres grading 0.67% copper and 1.56 g/t gold starting at 285 metres.
Two other holes also intersected significant gold and copper values — up to 1.1 g/t and 0.79%…
