Selkirk Copper Mines Inc. · TSXV:SCMI

Selkirk Copper Mines — Investor Presentation (September 2026)

17 slides from Selkirk Copper Mines's investor presentation, September 2026

  1. Slide 1: Yukon's Next Copper Producer

    Yukon’s Next Copper Producer Writing a New Chapter, Building for the Future Corporate Presentation September 2026 TSX-V: SCMI | OTCQX: SKRKF | FRA: IO20 selkirkcopper.com

  2. Slide 2: Cautionary Notes and Technical Disclosure

    Cautionary Notes and Technical Disclosure Disclaimer Recipients of this corporate presentation (“Presentation”) who are considering acquiring securities of Selkirk Copper Mines Inc. (the “Company”) are cautioned that this Presentation is for information purposes only and is not intended to be, nor s

  3. Slide 3: Cautionary Notes and Technical Disclosure - Continued

    Cautionary Notes and Technical Disclosure - Continued Industry and Market Data This Presentation includes market and industry data and forecasts that were obtained from third-party sources, industry publications and publicly available information. Third-party sources generally state that the informa

  4. Slide 4: Minto Copper-Gold-Silver Project

    Minto Copper-Gold-Silver Project A high-grade mine in Canada positioned for long-term success Strong PEA Established Large Resource Near-term Project Alignment Economics Infrastructure with Significant Production of High- with Selkirk First Upside Grade Copper Nation Concentrate After-Tax NPV(7%) of

  5. Slide 5: Corporate Overview

    Corporate Overview Cornerstone investment by the Selkirk First Nation Capitalization 38% Basic Shares Outstanding M 158.6 Retail / HNW Selkirk First Nation — 18% Options M 8.8 18% • Acquired 100% ownership of the Minto Warrants (avg C$0.50) M 3.7 Selkirk First Project through bankruptcy and vended i

  6. Slide 6: Located in Central Yukon with Established Infrastructure

    Located in Central Yukon with Established Infrastructure ▪ Location: West of the Yukon River, ~20 km WNW of Minto Port Access Landing and ~250 km by road from Whitehorse via Yukon direct access to port of Skagway Highway 2 ▪ Access: Chartered air service from Whitehorse to an on-site airstrip, plus

  7. Slide 7: Project Layout

    Project Layout C$330M+ of infrastructure in place 7

  8. Slide 8: Minto PEA Economics

    Minto PEA Economics On-site Infrastructure driving low capex rapid payback Payback (Years) 1.9 1.3 1.0 13 Years C$186M After-tax NPV (7%) Mine Life Initial capex 96% IRR C$1.4B 78% NPV 1.5 Mtpa 7.9:1 C$1.0B Throughput LOM Open Pit Strip Ratio NPV 48% C$291M C$141M C$494M NPV Annual Average Revenue1

  9. Slide 9: Minto PEA Production Profile

    Minto PEA Production Profile Potential to extend mine life beyond 13 years and increase annual production up to 20% LOM Payable Copper LOM Payable Gold LOM Payable Silver 377 Mlbs 225 Koz 1,387 Koz Opportunities to extend mine life from near mine expansion targets 80 Copper Gold (CuEq) Silver (CuEq)

  10. Slide 10: Minto Financial Metrics

    Minto Financial Metrics Strong leverage to rising copper prices and to increases in gold & silver prices Initial Capital AVERAGE ANNUAL FREE CASH FLOW C$186M C$83M at Base Case | C$146M at Spot $300 $2,000 C$1.7B Annual Free Cash Flow After-Tax (C$M) Cumulative Free Cash Flow After-Tax (C$M) $225 $1

  11. Slide 11: Exploration Driving Growth in Mineral Resources

    Exploration Driving Growth in Mineral Resources New discoveries proving unrecognized potential of the Minto Project Growth in Total Tonnes 2026 MRE: Significant Discoveries and Expansions Measured Indicated Inferred Expansion Discovery 47.5 202 Lens, Minto North 117 Lens, Minto Main • 238% expansion

  12. Slide 12: Exploration Strategy

    Exploration Strategy Developing a target pipeline for resource growth and new discoveries Near Mine Objective Regional Objective Continue delineation of new resources to support the mine Make new discoveries by applying knowledge within highly restart decision prospective, under-explored district •

  13. Slide 13: Process Flowsheet

    Process Flowsheet Investing in critical process equipment in a well-established flowsheet to improve throughput and recovery OVERVIEW • Conventional flowsheet comprising run-of-mine ore stockpile, three-stage crushing, SAG and ball mill grinding, gravity concentration, flotation, concentrate thicken

  14. Slide 14: Mine Design

    Mine Design • Open pit and underground mining designed to extract copper-gold-silver mineralization defined in the 2026 MRE • Underground mining will be carried out in Minto North, Minto East, Copper Keel, and Area 118 deposits using long hole open stoping in an upper-cut retreat sequence with rib p

  15. Slide 15: Contact

    colin.joudrie@selkirkcopper.com 604-760-3157 justin.stevens@selkirkcopper.com 604-240-2959 16

  16. Slide 16: Appendix: 2026 Mineral Resource Estimate

    Appendix: 2026 Mineral Resource Estimate Grade Contained Metal Type Class Tonnage Cu(%) Au (g/t) Ag (g/t) Cu (Mlbs) Au (Koz) Ag (Koz) Open Indicated 21,779 0.59 0.17 1.8 283 122 1,294 Pit Inferred 7,052 0.55 0.13 1.6 85 30 354 Measured 348 0.92 0.39 3.3 7 4 36 Indicated 25,679 1.15 0.49 4.4 650 404

  17. Slide 17: Appendix: Pre-Production Capital Cost Breakdown

    Appendix: Pre-Production Capital Cost Breakdown Classification Amount (C$) Site General Site General $2,393,739 Contingency Mining $77,599,853 Processing $12,007,668 Surface facilities $10,178,348 Indirect Mining Costs Transportation $200,013 Tailings Ponds & Disposal $6,571,396 Indirect costs $54,3

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