Columba drilling returns 10 meters of 503 gpt silver, 0.1% lead, 0.6% zinc and 9.88 meters of 319 gpt silver, 0.1% lead and 0.6% zinc from the Columba Drill Program

About this update from Kootenay Silver Inc.

VANCOUVER, BC, March 2, 2026 /CNW/ - Kootenay Silver Inc. (TSXV: KTN) (OTCQX: KOOYF) (the "Company" or "Kootenay") is pleased to announce additional assay results from nine more drill holes at its Columba High-Grade Silver Project in Chihuahua, Mexico. The staged 50,000-meter drill program is well underway with approximately 17,000 meters completed and 24 holes now reported. The recently closed financing allows for an additional 10,000 meters of drilling for a total of 60,000 meters at Columba. Expansion drilling is the focus with systematic ~ 100-meter step outs from the known resource bodies which remain open in 2 or 3 directions. These known resource bodies currently host an inferred Mineral Resource Estimate ("MRE") totaling 54.1 Moz of silver based 5.92 Mt at a grade of 284 gpt (see News Release June 17, 2025). The results contained herein include four holes targeting D Vein and five holes targeting the sub-parallel B2/Lupe Vein System. Highlights include: D Vein Trend  Hole CDH-25-230 was a step out hole and holes CDH-25-232 and 234 were drilled to test a large 200m long zone in the central D Vein trend. Of interest, CDH-25-230 intercepted a thin hanging-wall vein above the D Vein target grading 0.7m of 1,020 gpt silver, 0.6% lead and 1.5% zinc. Hole CDH-25-232 intersected a broad low-grade section on the D trend with a thin high grade footwall vein of 3,640 gpt silver over0.3 meters. Lupe-B2 Trend Southeasterly extension of the F Vein trend, Lupe/B2 Veins are hosted within a broad corridor of veining oriented to the east-southeast. Five holes form this corridor are reported herein, two of which, CDH-25-233 and 235 represent the deepest intersections on Lupe Vein to date, both holes returning >1000 gpt silver. This corridor of veins is showing excellent potential for strong widths and high grades. It remains open along strike and to depth showing strong growth potential. See the long sections for Lupe and B 2 Veins for visual reference. For further details, follow the link to cross sections (B2/Lupe Vein and D Vein) and long sections (B2 Vein, Lupe Vein, D Vein). Drilling continues with two drills as Kootenay works to expand accommodation and core storage capacity at Columba. Upon completion the Company intends to increase the number of drill rigs at the project. Kootenay's President & CEO, James McDonal...

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