Announcement • 14h

Wesdome Gold Mines Ltd Provides Update on Exploration Drilling Activities At Kiena Mine

Wesdome Gold Mines Ltd. provided an update on its exploration drilling activities at its wholly-owned Kiena mine near Val-d’Or, Quebec. A third broad intercept solidifies the recently announced discovery of the Norbenite Footwall Zone. N134-7207: 7.8 g/t Au uncapped over 57.2 m core length, (7.4 g/t Au capped, 57.2 m core length). Together with two prior holes – hole N134-7152W1 that intersected 6.9 g/t Au uncapped over 42.1 metres and historic hole 6752W10 that intersected 9.9 g/t Au over 83.2 metres – the Norbenite Footwall Zone now traces over 150 metres vertically with significant thickness and grade. Drilling at depth continues to delineate the new Norbenite Footwall Zone beyond the Norbenite Fault where mineralization has been traced over at least 150 vertical metres in basaltic rock and remains open up-plunge, laterally, and at depth. The new VZ Zone opens a previously untested parallel trend less than 100 metres from existing infrastructure, with six holes confirming continuity. One exploration hole intersected a new parallel mineralized vein adjacent to the VZ Zone and less than 50 metres from existing infrastructure. N109-7213: 23.8 g/t Au uncapped over 4.0 m core length (23.8 g/t Au capped, 4.0 m core length). Six exploration holes confirm discovery of the new VZ Zone. N109-7017 (2025 hole): 4.9 g/t Au uncapped over 6.0 m core length (4.9 g/t Au capped, 6.0 m core length). N109-7204: 6.4 g/t Au uncapped over 7.0 m core length (6.4 g/t Au capped, 7.0 m core length). N109-7205A: 4.3 g/t Au uncapped over 4.0 m core length (4.3 g/t Au capped, 4.0 m core length). N109-7206: 4.6 g/t Au uncapped over 8.0 m core length (4.6 g/t Au capped, 8.0 m core length). N109-7213: 2.9 g/t Au uncapped over 3.7 m core length (2.9 g/t Au capped, 3.7 m core length). N109-7214: 3.4 g/t Au uncapped over 4.0 m core length (3.4 g/t Au capped, 4.0 m core length). Assays capped at 90 g/t for Kiena Deep zones (assays capped). Norbenite Footwall Hole N134-7207, drilled from the level 134 exploration drive, returned a broad, high-grade intercept of 7.8 g/t Au over 57.2 metres core length, hosted within a quartz vein system in basaltic rock. Together, with hole N134-7152W1, which intersected 6.9 g/t Au over 42.1 metres core length and historic hole 6752W10, which intersected 9.9 g/t Au over 83.2 metres core length, these results support the potential for resource growth from the newly identified Norbenite Footwall Zone, adjacent to the Norbenite Fault. Hole N134-7207 was designed to test the area between hole N134-7152W1 and the historic 6752W10 drill hole, with the objective of evaluating the continuity of the basalt host rock and associated mineralization. The basaltic host rock offers strong ground competency that supports efficient and stable mining operations. Results from hole N134-7207 provide additional evidence of continuity, and capacity for high-grade mineralization growth. Additional drilling will be required to fully define the geometry and extent of the zone, which is now interpreted to continue over a 150-metre vertical profile. At least 300 vertical metres of ground between hole N134-7152W1 – the uppermost intercept of the Norbenite Footwall Zone – and the upper levels of existing Footwall Zone mineralization remain largely untested. Previous holes terminated within the Norbenite Fault structure, leaving this prospective corridor open for systematic drilling. Exploration drilling has confirmed the discovery of the VZ Zone, located less than 100 metres from the existing drill bay on level 109. An initial hole drilled in 2025, N109-7017, returned encouraging results, though at the time it was unclear whether this intercept represented an isolated occurrence or a distinct mineralized zone. Five additional holes reported in this release, including N109-7204, N109-7205A, N109-7206, N109-7213, and N109-7214, have confirmed the continuity of this mineralized lens, establishing the VZ Zone as a new near-mine zone and opening a previously untested trend at shallow depths of the mine. The proximity of these intercepts to existing mine infrastructure highlights their potential for future mine planning. With limited drilling completed along this trend, the results indicate significant potential for resource growth, and aggressive follow-up drilling is planned as initial results have exceeded expectations. The discovery of the VZ Zone, located near the VC Zone, is particularly significant as both zones occur at relatively shallow levels and could be accessed through future infrastructure development. The potential to develop both zones within a common mining area could provide an opportunity to increase ounces per vertical metre and improve the overall efficiency of future mine development. Located approximately 300 metres to the west, the VZ Zone sits within a deformation corridor that links back to the ZA lenses of Kiena Deep. With high-grade lenses at Kiena Deep open along strike toward VZ Zone, drilling this westward trending corridor is a priority focus, particularly as it remains untested at key mine elevations. This demonstrates the strong potential of near-mine exploration to identify new mineralized systems, expand Kiena’s mineral inventory, and support future mine development. Recent exploration drilling near-mine from level 109 has identified a new high-grade vein of mineralization where drill hole N109-7213 intersected 23.8 g/t Au uncapped over 4.0 metres core length. This new vein is hosted within the same basaltic unit as the VZ Zone and is located between the current drill bay and the VZ Zone, approximately 50 metres from the drill bay. The vein remains open up-dip and laterally, and additional drilling is underway to continue defining the full extent and opportunity. Exploration Kiena drilling, the drill core NQ in size, was cut in half with a diamond saw resulting in a half core sample for assay and a half core sample to be retained for reference. Delineation drilling, in defined resource areas, is BQ in size and the entire core was sent for assay analysis. Analytical work is performed by ALS Minerals of Val-d’Or (Québec), a certified commercial laboratory (Accredited Lab #689).

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