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Drilling at Mount Polley Intersects 11.0 Metres Grading 4.43% Copper, 1.53 g/t Gold and 41.7 g/t Silver

Drill Results

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News Release

Drilling at Mount Polley Intersects 11.0 Metres Grading 4.43% Copper, 1.53 g/t Gold and 41.7 g/t Silver

Vancouver | January 22, 2026 | Imperial Metals Corporation (“Imperial” or the “Company”) (TSX:III) reports on

the first diamond drill hole from the Mount Polley 2025 Phase 2 Diamond Drill Program which includes 11.0

metres with a grade of 4.43% copper, 1.53 g/t gold and 41.7 g/t silver. The nine hole Phase 2 program

consisted of 3,718.3 metres.

The Mount Polley 2025 Phase 2 program had three goals; to test a high-grade zone beneath the Wight Pit

(See Figure 1) , to expand and determine the boundaries for mineralization in the higher gold grade

encountered at depth in the C2 zone, and to test beneath the previously mined Bell Pit for depth extension

using new targeting techniques successfully deployed in the Springer Pit. The results of the first hole drilled

in this program have been received, with the remainder pending.

Figure 1: Wight Pit Drill Plan

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Drill hole WB-25-268 was collared on the eastern edge of the previously mined Wight Pit and targeted a high-

grade area located in the Green zone, adjacent to the Martel zone, at depth beneath the Wight Pit (See Figure

2). The goal of drill hole WB -25-268 was to test the continuity and further define the high-grade zone

originally defined by holes WB-05-189 (15.0 metres grading 3.1% copper, 0.33 g/t gold, and 20.1 g/t silver)

and WB-04-179 (12.4 metres grading 6.7% copper, 3.65 g/t gold, and 44.8 g/t silver).

Figure 2: Wight Pit Drill Cross Section

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Hole WB-25-268 intercepted a hydrothermal fragmental potassic-altered breccia hosting significant bornite

and chalcopyrite cement at the target depth that returned from 304.4 metres, 11.0 metres grading 4.43%

copper, 1.53 g/t gold and 41.7 g/t silver. In addition to the mineralization intercepted in the targeted zone

the hole intersected a number of other higher-grade sections, both above and below the targeted area,

including 9.6 metres grading 3.71% copper, 0.42 g/t gold and 9.89 g/t silver starting at 272.5 metres.

Table 1. Drill results from WB-25-268

Hole ID From (m) To (m) Width (m) Copper (%) Gold (g/t) Silver (g/t)

WB-25-268 254.6 256.1 1.5 3.58 0.07 13.6

and 272.5 282.1 9.6 3.71 0.42 9.89

and 304.4 315.4 11.0 4.43 1.53 41.7

and 414.6 420.7 6.1 1.16 0.36 7.0

and 467.5 500.0 32.5 0.60 0.28 4.4

and 542.5 557.5 15.0 0.97 0.63 8.8

The higher silver to copper ratio returned in this hole is typical of mineralization in the northeast quadrant of

the Mount Polley property. Additional diamond drilling will target this area in 2026.

The Martel zone has previously been defined as an underground resource (See Table 2).

Table 2. Martel zone Underground Resource

Mount Polley Martel Underground Indicated Resource at January 1, 2025

Grade Contained Metal

Martel Tonnes Ore Copper % Gold g/t Silver g/t Copper lbs Gold Oz Silver Oz

Underground 2,272,000 1.14 0.30 7.20 57,344,000 22,000 526,000

* source Imperial 2024 AIF (March 31, 2025)

Jim Miller-Tait, P.Geo., Imperial’s VP Exploration, has reviewed this news release as the designated Qualified

Person as defined by National Instrument 43 -101 for the Mount Polley exploration program. Samples

reported were analyzed at Activation Laboratories Ltd. located in Kamloops. A full QA/QC program using

blanks, standards and duplicates was completed for all diamond drilling samples submitted to the labs.

Significant assay intervals reported represent apparent widths. Insufficient geological information is available

to confirm the geological model and true width of significant assay intervals.

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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 exploration properties in British Columbia.

Company Contacts

Brian Kynoch | President | 604.669.8959

Jim Miller-Tait | VP Exploration | [email protected]

Cautionary Note Regarding Forward-Looking Statements

Certain information contained in this news release are not statements of historical fact and are “forward-looking” statements.

Forward-looking statements relate to future events or future performance and reflect the Company’s management’s expectations

or beliefs regarding future events and include, but are not limited to, statements regarding the Company’s expectations with

respect to exploration drilling programs at Mount Polley; potential quantity and/or grade of minerals and the potential size of the

mineralized zone. In certain cases, forward-looking statements can be identified by the use of words such as "plans", "expects" or

"does not expect", "is expected", "outlook", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not

anticipate", or "believes", or variations of such words and phrases or statements that certain actions, events or results "may",

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"could", "would", "might" or "will be taken", "occur" or "be achieved" or the negative of these terms or comparable terminology.

By their very nature forward-looking statements involve known and unknown risks, uncertainties and other factors which may

cause the actual results, performance or achievements of the Company to be materially different from any future results,

performance or achievements expressed or implied by the forward-looking statements.

In making the forward-looking statements in this news release, the Company has applied certain factors and assumptions that are

based on information currently available to the Company as well as the Company’s current beliefs and assumptions. These factors

and assumptions and beliefs and assumptions include the risk factors detailed from time to time in the Company’s annual

information form, interim and annual financial statements and management’s discussion and analysis of those statements, all of

which are filed and available for review on SEDAR+ at www.sedarplus.com. Although the Company has attempted to identify

important factors that could cause actual actions, events or results to differ materially from those described in forward-looking

statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended, many

of which are beyond the Company’s ability to control or predict. There can be no assurance that forward-looking statements will

prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements.

Accordingly, readers should not place undue reliance on forward-looking statements and all forward-looking statements in this

news release are qualified by these cautionary statements.