Imperial Reports Mount Polley Production Update for 2026 First Quarter
Press Release
Vancouver | April 14, 2026 | Imperial Metals Corporation (“Imperial”) (TSX:III) reports production from Mount Polley mine for the 2026 first quarter of 4.399 million pounds copper and 7,608 ounces gold. Copper production was down 51% and gold production was down 28%, on lower grades, recoveries and throughput compared to the first quarter of 2025.
Mount Polley Mine Production Three Months Ended March 31
2026 2025
Ore milled – tonnes 1,499,749 1,721,769
Ore milled per calendar day – tonnes 16,664 19,131
Grade % – copper 0.186 0.282
Grade g/t – gold 0.233 0.275
Recovery % – copper 71.5 83.3
Recovery % – gold 67.6 69.8
Copper – million pounds 4.399 8.904
Gold – ounces 7,608 10,621
Compared to the fourth quarter of 2025, throughput was up 5%, gold production was up 15% and copper production was down 5%.
Mill feed for the first quarter of 2026 was sourced 28% from the Phase 5 pushback of Springer Pit, supplemented by 32% from Phase 4 Springer and C2 Pits, and 39% from lower grade stockpiles. Stripping activities for the Phase 5 pushback of the Springer Pit continued during the quarter, with approximately 5,246,935 tonnes of rock mined from this pushback. Of this amount, approximately 483,165 tonnes of non-acid generating rock were delivered to the tailings storage embankment for buttress construction.
Advance Notice Policy
On March 24, 2026, the Board of Directors repealed the Company’s advance notice policy (the “Policy”). As a result, the Policy will not apply to the nomination of directors at the Company’s upcoming annual and special meeting of shareholders to be held on May 20, 2026.
Steve Robertson, P. Geo., Imperial’s Vice President Corporate Development, has reviewed the above disclosures contained in this news release and is the designated Qualified Person as defined by National Instrument 43-101 (“NI 43-101”).
About Imperial
Imperial is a Vancouver based exploration, mine development and operating company with holdings that include the Mount Polley mine (100%), the Huckleberry mine (100%), and the Red Chris mine (30%). Imperial also holds a portfolio of 23 greenfield exploration properties in British Columbia.
Company Contacts
Brian Kynoch | President | 604.669.8959
Steve Robertson | Vice President Corporate Development | 604. 669.8959
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