Selkirk Copper's 44.7 Meter Minto North Hit Feeds Restart Feasibility Work

• Minto North's 202-meter lens returned 44.7 meters grading 2.12% copper, 1.16 grams per tonne gold and 10.7 grams per tonne silver, or 3.0% copper equivalent.
• The interval includes 11.1 meters at 5.83% copper equivalent and 9.2 meters at 6.45% copper equivalent along a north-northwest structure interpreted to control high-grade mineralization.
• A 50-meter step-out at Area 118 returned 8.7 meters at 3.38% copper equivalent within 150 meters of existing underground development.
• Phase 2 drilling reached 54,711 meters by October 14, 2026, or 109% of the 50,000-meter plan.
• Selkirk Copper is targeting an updated mineral resource estimate (MRE)  in the first quarter of 2027, as drilling informs the Feasibility Study (FS) for the Minto restart.

Company Overview

Selkirk Copper (TSXV: SCMI | FRA: IO20 | OTCQX: SKRKF) is a newly formed company in which the Selkirk First Nation holds a controlling interest. The company controls 26,850 hectares in the Minto-Carmacks copper belt, including the former Minto mine and its 4,100 tonne-per-day processing plant. Its Global Mineral Resource Estimate (MRE) has an effective date of June 10, 2026, with the supporting technical report dated September 14, 2026, and filed on SEDAR+.

Minto North Delivers 44.7 Meters at 3.0% Copper Equivalent

Drilling at the 202 Lens at Minto North intersected 44.7 meters grading 2.12% copper, 1.16 grams per tonne gold and 10.7 grams per tonne silver, equal to 3.0% copper equivalent. The interval contains both high-grade and waste material, including 11.1 meters at 5.83% copper equivalent and 9.2 meters at 6.45% copper equivalent. Selkirk Copper reports the full length as a single interval to reflect the potential for either bulk or selective underground mining methods.

Minto North drilling also returned 2 additional intercepts: 12.7 meters at 4.55% copper equivalent and 5.1 meters at 5.58% copper equivalent. This drilling tested a north-northwest structural trend that the company interprets as controlling high-grade mineralization within the 202 Lens. Mineralization consists of folioform to semi-massive bornite and chalcopyrite within a migmatite host rock.

Reported intervals are core lengths. True widths are estimated to be approximately 80% to 90% of the core length.

Area 118, Copper Keel & Minto Main Extend Mineralization

At Area 118, a 50-meter step-out within 150 meters of existing underground development returned 8.7 meters at 2.14% copper, 1.61 grams per tonne of gold, and 10.1 grams per tonne of silver (3.38% copper equivalent) in the 301 Lens. Mineralization remains open to the north. Drilling within 200 meters of existing underground development also returned 14.9 meters at 1.22% copper equivalent and 10.2 meters at 1.05% copper equivalent in the 120 and 160 Lenses.

At Copper Keel, the 101 Lens returned 12.4 meters at 2.02% copper, 0.65 grams per tonne of gold, and 4.8 grams per tonne of silver (2.41% copper equivalent). Drilling at the 302 Lens, a new target identified through 2026 geological modeling, indicates mineralization open to the east and south at depths of roughly 50 to 70 meters below the surface.

At Minto Main, drilling returned 27 meters at 1.42% copper, 0.58 grams per tonne of gold, and 3.4 grams per tonne of silver (1.79% copper equivalent), with mineralization open to the north.

Phase 2 Program Exceeds Planned Meters

Phase 2 drilling began in May 2026 with a target of 50,000 meters. By October 14, 2026, the program had completed 54,711 meters, and Selkirk Copper is targeting completion by October 20, 2026. Logging, core cutting, and sample shipping are targeted for completion by early November, with assay turnaround of approximately 8 weeks and results targeted for release through fall and winter 2026.

Samples were prepared at ALS in Whitehorse and analyzed at ALS in Vancouver, an ISO/IEC 17025-accredited laboratory. Selkirk Copper inserts quality-control material into approximately 15% of samples and reports no significant outliers or systematic bias. Leif Bailey, P.Geo., Director of Geoscience & Exploration, is the Qualified Person for the technical content.

President and Chief Executive Officer of Selkirk Copper, M. Colin Joudrie, tied the drill results directly to the restart pathway at Minto:

"The drills, guided by our exploration team, continue to deliver high-grade copper-gold-silver intercepts across several mineralized zones on the mine site property. The structural model and refined targeting methodology, combined with a focused infill drill program, are providing us the information we need to advance Feasibility Study work in the next phase of restart development at the Minto Project."

Next Steps

Selkirk Copper is targeting completion of Phase 2 drilling by October 20, 2026, with logging, core cutting and sample shipping targeted for early November. Remaining Phase 2 assays are targeted for release over the next 8 to 10 weeks, followed by an updated MRE in the first quarter of 2027. The company is using these results to advance FS  work in the next phase of restart development at the Minto Project.

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