Imperial Reports Mount Polley Permit Issuance, Mount Polley Production Update for 2026 Second Quarter, and Huckleberry Mine Exploration Results
Imperial’s Mount Polley tailings dam permit extends to 987 m, pushing the project life to 2034 despite Q2 copper output halving year-on-year.
The BC Environmental Assessment Office and ministers have approved raising the Mount Polley Tailings Dam to 987 metres from 974 metres, authorizing storage for expanded mining through 2034. Permits were issued by Minister Brar for Mining and Critical Minerals and Minister Davidson for Environment and Parks.
Imperial Metals Corporation (III) secured a regulatory milestone with a tailings dam permit allowing operations up to 987 meters, extending the mine life of Mount Polley through 2034. This approval follows previous permit amendments, including an expansion permit in August 2025, and was partly anticipated by the market.
The company reported weak second-quarter 2026 production figures, with copper output falling to barely half of the prior-year quarter. The decline was driven by low grades and poor recoveries, marking a clear operating setback. Despite this, management reaffirmed full-year guidance without revision, signaling confidence in a second-half recovery. The market likely anticipated a soft quarter given the reliance on high stockpiles, as noted in the first-quarter 2026 MD&A, which indicated that lower grades from stockpiles would persist through the first half of the year.
Exploration results at Huckleberry are positive but remain early-stage, with a reopening plan still only promised for the end of 2026. The combination of the long-term permit win and the weak quarter that did not trigger a guidance cut results in a net-neutral informational update.
Imperial Metals Corporation (III) is a Vancouver-based copper-gold producer with three principal assets in British Columbia. The company owns Mount Polley, an open-pit mine with 2026 guidance of 19-21 million pounds of copper and 40-44 thousand ounces of gold. It holds a 30% interest in Red Chris, where Newmont operates the remaining 70%. Red Chris is an open-pit mine transitioning to a block-cave method, with 2026 guidance on a 100% basis of 60-66 million pounds of copper and 47.5-52.5 thousand ounces of gold. A block-cave feasibility study is due in the second half of 2026, and the company has secured $500 million in federal funding. The third asset, Huckleberry, is 100% owned and currently on care and maintenance, with a restart plan targeted for the end of 2026. The company also holds 23 greenfield exploration properties in British Columbia.