Mr. Brian Kynoch reports

IMPERIAL PROVIDES UPDATE ON FALL OF GROUND INCIDENT AND REPORTS PRODUCTION FOR 2025 SECOND QUARTER AT RED CHRIS MINE

Imperial Metals Corp. has provided an update on the two fall-of-ground incidents at the 30-per-cent-owned Red Chris mine in northwestern British Columbia.

In co-ordination with industry partners, mine operator Newmont has deployed specialized drones to assess the geotechnical conditions underground. The debris blocking access to the underground area is estimated to be approximately 20 to 30 metres long and seven to eight metres high. The area of the refuge chambers is not in the same area as the fall of ground and is understood to be stable and well ventilated.

Newmont has commenced the use of a remote-controlled scoop, that was transported from the nearby Brucejack mine site, to begin removing debris and restore access beyond the incident site. Teams are restoring the specialized communication system (leaky feeder system) in attempts to re-establish communication with the workers.

The workers are understood to be sheltering in a MineARC refuge chamber designed to support 16 people. Additional refuge chambers are also available nearby and accessible if required. Production at Red Chris mine has been paused to allow full focus on rescue efforts and re-establishing communication.

Imperial also reports quarterly copper and gold production for the period ended June 30, 2025, from Red Chris mine. Red Chris mine production (100 per cent) for the second quarter of 2025 was 23,479,000 pounds copper and 22,624 ounces gold compared with 20,731,000 pounds copper and 12,531 ounces gold during the second quarter of 2024.

In the second quarter of 2025, Red Chris mine copper production was up 13 per cent compared with the second quarter of 2024. The increase in copper production was a result of a 17-per-cent increase in copper grade (0.547 per cent versus 0.466 per cent), offset by a small decrease in throughput. Gold production in the second quarter of 2025 was up 81 per cent from the second quarter of 2024 as a result of the increased gold grades and better recovery, offset by slightly lower throughput.

For the first six months of 2025, copper production was up 25 per cent compared with the same period last year on higher copper grades, and gold production was up 101 per cent on higher gold grades and better recovery.

The Red Chris block cave feasibility study is advancing as are permitting activities and early-stage underground development work and other work to support the underground block cave project. The total development completed to June 30, 2025, was approximately 11,727 metres, completed on both the Nagha and conveyor declines.

The technical and scientific information related to the company's mineral projects has been reviewed and approved by Brian Kynoch, PEng, president of Imperial, the designated qualified person as defined by National Instrument 43-101.

About Imperial Metals Corp.

Imperial is a Vancouver-based exploration, mine development and operating company with holdings that include the Mount Polley mine (100 per cent), the Huckleberry mine (100 per cent) and the Red Chris mine (30 per cent). Imperial also holds a portfolio of 23 exploration properties in British Columbia.

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