Announcement • Jul 21

Eskay Mining Corp Commences 2026 Drill Program and Commissions Stewart Analytical Lab

Eskay Mining Corp. announced that its planned 5,000-meter diamond drilling program on the Corey-Eskay Property is now underway. The Company has successfully mobilized its drilling team and initiated operations from the Goldstorm Metals Corp’s Electrum camp. Due to higher-than-normal snow conditions at the TM and Vermillion target areas, drilling has commenced at the lower-elevation C-10 prospect. The first two boreholes, EM26-01 and EM26-02, are targeting combined chargeability and conductivity anomalies within the Betty Creek Formation. Because of favourable snow conditions over both the Big Red porphyry copper target and the Sultan gold veins target, boreholes EM26-03 at Big Red (drill pad completed) and EM26-04 at Sultan (next pad to be built) will be the next boreholes drilled. Once surface conditions permit, the program will shift focus to the TM and Vermillion areas. All the non-linear magnetic highs on the Corey-Eskay Property constitute important porphyry copper-gold targets and they are currently receiving the Company’s attention. Eskay Mining Corp. confirmed that a dedicated rapid-turnaround analytical laboratory described in its April 28 news release has been commissioned in Stewart, B.C. The facility is equipped with specialised equipment for the collection of sludge from the core saw, which material is then analysed by both conventional pXRF for a large suite of elements, including copper, zinc, and pathfinder elements for gold, and by PortablePPB’s detectORE™ technology for gold and silver. This strategic development allows the Company to receive multi-element analyses from drill core cuttings within 48 hours of cutting, a significant improvement over regular commercial laboratory turnaround times. At Big Red, recent and historic and rock samples were assessed using the University of British Columbia Mineral Deposit Research Group (MDRU) porphyry proximity index (MPIx). The MPIx index was developed to assess proximity to a possibly-mineralised Cu/Au porphyry deposit. Many samples assessed at Big Red contain high MPIx numbers. Supportive copper levels in rock samples collected at Big Red in 2025 are shown. The Sultan Zone was discovered during the 2025 sampling program in an area comprised of a bimodal volcanic sequence with lesser marine sedimentary rocks which yielded high gold levels in a number of rock samples. Localized discrete shears occur throughout the area and occasionally host pyrite-pyrrhotite-arsenopyrite mineralization returning up to 11.2 g/t Au and 56.6 g/t Ag (Sample A0514256). At similar elevations a 5 by 3m zone of massive sulphide replacement was observed associated with intercalated volcanics and sediments exhibiting moderate to strong silicification. Pyrrhotite and trace to minor chalcopyrite comprise the sulphide assemblage, associated with quartz-pyrite-pyrrhotite veining. Samples collected from the massive sulphide zone returned low-grade gold and silver with 0.26% copper (Sample A0519938).

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Eskay Mining Corp Commences 2026 Drill Program and Commissions Stewart Analytical Lab

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