Mr. Brian Kynoch reports

IMPERIAL INTERSECTS 5 METRES OF 5.51 GRAMS PER TONNE GOLD AT THE PORCHER ISLAND PROPERTY

Imperial Metals Corp. has released assay results from its spring 2026 diamond drilling program at the Porcher Island property, located 35 kilometres south-southwest of Prince Rupert, B.C.

Ten drill holes totalling 1,380 metres were completed from four helicopter-supported drill pads. All drill holes intersected gold (Au) and silver (Ag) mineralization.

Significant intervals from the 2026 program are provided in table 1.

The Porcher Island property (100 per cent owned by Imperial) is located on the northwest corner of Porcher Island on the northern coast of British Columbia. It hosts two past producing gold mines, Edye Pass and Surf Point mines, which operated from 1919 to 1939, when the last operating mill burned down. Historical production is estimated at 77,952 tons grading 0.29 ounce per ton (oz/t) gold from both mines.

Gold mineralization is hosted in shear zones and quartz veins developed within a quartz diorite stock. Gold is associated with pyrite occurring as disseminations, stringers and semi-massive accumulations, with trace chalcopyrite and molybdenum and elevated tellurium.

In 2007, nine angled drill holes completed from three south-dipping drill fans intersected multiple intervals grading more than 2.0 grams per tonne (g/t) gold. The drilling outlined a cluster of near-surface gold mineralization now known as the Christmas Tree zone.

The strongest gold intercept from the 2026 program was returned from drill hole PI-26-10 in the Christmas Tree zone. Drilled vertically from the same pad used for the 2007 holes, PI-26-10 tested the zone's northern extension and intersected 45.5 metres grading 1.24 g/t gold, including 17.0 metres grading 2.25 g/t gold and 5.0 metres grading 5.51 g/t gold.

The three other drill pads used during the 2026 program were positioned along structures north and west of the Christmas Tree zone and tested the downdip extensions of gold-bearing quartz veins sampled in historical underground workings. Significant intercepts include 4.5 metres grading 4.77 g/t gold from 75.5 metres in drill hole PI-26-02 and 2.3 metres grading 3.63 g/t gold from 12.0 metres in drill hole PI-26-08.

The 2026 drill results will be integrated into the existing project database and interpreted to support planning for additional exploration at the Porcher Island property. In the current strong gold price environment, Imperial will continue to pursue options to reveal value at Porcher Island project, including completing ore sorting testwork to consider the potential for direct ore shipping. This concept is highly attractive for a project like Porcher Island since it sits at tide water for ease of ocean transportation options and also would eliminate the need for a processing plant or tailings storage. This would significantly reduce capital requirements and environmental footprint of a potential mining operation.

Jim Miller-Tait, PGeo, Imperial's vice-president of exploration, has reviewed this news release as the designated qualified person as defined by National Instrument 43-101 for the Porcher Island exploration program.

The Porcher Island samples reported were analyzed at Activation Laboratories Ltd., located in Kamloops. A full QA/QC (quality assurance/quality control) program using blanks, standards and duplicates was completed for all diamond drilling samples submitted to the labs. Reported assay intervals represent apparent widths of mineralization. Insufficient geological information is available to confirm the geological model and true width of the mineralized intervals.

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 21 exploration properties in British Columbia.

We seek Safe Harbor.