Giga Metals Corporation · TSXV:GIGA
Giga Metals — Investor Presentation (June 2026)
26 slides from Giga Metals's investor presentation, June 2026
Slide 1: Turnagain Ni-Co Project
Turnagain Ni-Co Project Proven Nickel Foundation, Copper & PGE Exploration Upside June 2026 TSX.V: GIGA | OTCQB: GIGGF | FSE: BRR2
Slide 2: Disclaimer
Disclaimer This presentation ("Presentation") is being issued by Giga Metals Corporation (the “Company” or “Giga Metals”) for information purposes only. Reliance on this Presentation for the purpose of engaging in any investment activity may expose an individual to a significant risk of losing all o
Slide 3: Investment Highlights
Investment Highlights Proven Leadership Track Record Across Exploration, Finance, Nickel Processing, and Regulatory Matters 1 Significant Exploration Upside JV with Mitsubishi Corp. Numerous Potential Targets in 5 2 85% Giga/15% MC Agreement in Nickel, Cobalt and Copper 2023 Provincially Recognized
Slide 4: Two Strategic Pathways Driving Shareholder Value
Two Strategic Pathways Driving Shareholder Value TRACK 1: Turnagain Nickel-Cobalt Project TRACK 2: Unlocking Potential Exploration Targets Long-Life, Low-Risk Foundation Optionality & Discovery-Driven Growth ▪ PFS Complete: Long-life, scalable source of Class 1 ▪ Geological Expertise: Dr. Stephen Be
Slide 5: Executive Team
Executive Team Scott Lendrum, CEO, Director Mr. Lendrum joined Giga Metals in 2025 as Chief Executive Officer. He previously Holly Millar, spent 20 years in investment banking. Mr. Lendrum brings extensive mining External Relations & sector experience, most recently as Director of Investment Banking
Slide 6: Board of Directors
Board of Directors Lyle Davis, P.Eng. MBA, Chairman of the Board Scott Lendrum, CEO, Director Mr. Davis is an independent director of the Company. Mr. Davis was Mr. Lendrum joined Giga Metals in 2025 as Chief Executive Officer. a director of Condor Resources Inc., a copper and gold exploration He pr
Slide 7: Corporate Overview
Corporate Overview TSX.V & OTCQB listed critical mineral development company Experienced management group supported by industry- Capital Structure (June 2026) leading advisors Shares Outstanding 158,079,721 Flagship Turnagain Ni-Co Project: amongst the world’s Warrants 53,299,240 largest undeveloped
Slide 8: Giga Metals and Mitsubishi Corp. Joint Venture
Giga Metals and ▪ In 2022, Giga Metals entered into a joint venture agreement with Mitsubishi Corp. (MC), forming the Hard Creek Nickel JV Mitsubishi Corp. ▪ Giga, as majority partner and MC will jointly advance the Turnagain nickel-cobalt project as one of the Joint Venture lowest carbon and most e
Slide 9: BC: Attractive Mining Jurisdiction
BC: Attractive Mining Jurisdiction ▪ ESG – strong environmental and community engagement ▪ Infrastructure – access to deep-water Pacific ports and North American rail ▪ First Nations – Tahltan Nation and Kaska Dena are generally supportive of responsible mining development “Our approach makes B.C. a
Slide 10: Northwest British Columbia
Northwest British Potential Yukon-BC Grid Connection Proposed high-voltage transmission line connecting Turnagain Columbia Yukon Grid to North American grid Project Red Chris Mine Expansion A growing ecosystem of major Port of Stewart Expansion Project of National Importance by Prime Minister Mark C
Slide 11: Giga Metals and ARCA Partnership
Giga Metals and ▪ Arca Climate Technologies and Giga Metals sign exclusive agreement to explore carbon removal at Turnagain with potential to ARCA Partnership remove 220 million tonnes of atmospheric CO2 ▪ 10-year tailings and waste rock access agreement exclusive right to evaluate the potential of
Slide 12: Turnagain Overview
Turnagain Overview G SIGAMETALS ai
Slide 13: Turnagain Overview
Turnagain Overview ➢ Among the largest undeveloped sulfide nickel/cobalt resources globally ➢ Joint venture with Mitsubishi Corp, a world-class development partner (Giga majority owner and operator) ➢ PFS completed in 2023; clear development path forward ➢ 30-year project life with typical annual ou
Slide 14: Turnagain PFS Highlights
Turnagain PFS Highlights ✓ World-class sulfide nickel-cobalt mineral 950 Mt Total 1,574 Mt (M&I) resource Mineral Reserve Mineral Resource ✓ Long-life, conventional open-pit mine plan ✓ Simplified flow-sheet; crush, grind, flotation ~37,000t Ni + Co 30 Year Typical Annual Output Project Life ✓ High
Slide 15: Mineral Reserves & Resources
Mineral Reserves & Resources Mineral Reserve Tonnes Ni Grade Contained Ni Co Grade Contained Co Classification (Mt) (%) (million lbs) (%) (million lbs) Proven 408 0.219 1,970 0.013 121 Probable 542 0.194 2,326 0.012 146 Total 950 0.205 4,296 0.013 267 Mineral Resource Tonnes Ni Grade Contained Ni Co
Slide 16: Turnagain Development Path
Turnagain Development Path Path 2022 2023 Forward ▪ Establishment of ▪ Completion of Pre- ▪ Advanced strategic Hard Creek Nickel Feasibility Study in partnership discussions Joint Venture with partnership with ▪ De-risk project towards Mitsubishi Corp. Mitsubishi Corp. Environmental ▪ Geotechnical w
Slide 17: Exploration Strategy
Exploration — CORPORATION
Slide 18: Turnagain Ultramafic
Turnagain Ultramafic ▪ ~80% of ultramafic complex remains underexplored ▪ Previous exploration work based largely on shallow EM targets ▪ New MT survey supports in-place, up-facing, intrusive geometry ▪ Basal and marginal contacts untested ▪ Attic Zone mineralogy compatible with massive magnetite –
Slide 19: Exploration Focus
Exploration Focus ▪ Previous work identified a copper- in-soils anomaly northwest of the PFS open pit ▪ Renowned geologist Dr. Stephen Beresford identified this area as highly prospective for deeper magnetite – chalcopyrite mineralization ▪ Recent geophysics efforts (MT) across the Attic Zone succes
Slide 20: 2025 Magnetotelluric (MT) Survey
2025 Magnetotelluric (MT) Survey ▪ Geometry of ultramafic complex at depth critical to exploration ▪ Low resistivity sedimentary country rocks in contact with higher resistivity ultramafic intrusion ▪ MT identified as best tool to map geometry at depth ▪ Two MT lines surveyed in 2025 ▪ Highly succes
Slide 21: MT Line 1 – 2D Inversion
MT Line 1 – 2D Inversion ▪ MT near surface agrees with shallow AeroTEM ▪ MT delineates intrusive geometry to depth via resistivity contrast with ultramafic ▪ Basal and marginal contacts are untested ▪ Constrains search volume for future exploration 21
Slide 22: MT Line 2 – 2D Inversion
MT Line 2 – 2D Inversion ▪ Indicates shallower depth and more complexity to the NW ▪ Low resistivity anomaly in MT absent from shallow AeroTEM is untested ▪ MT proven to be highly valuable tool to map ultramafic geometry ▪ Depths not previously explored 22
Slide 23: What's Next
What’s Next 2026+ ▪ Target Ground EM with knowledge of geometry ▪ Basal and marginal contacts ▪ Embayments or other features ▪ Drilling ▪ BH EM 2026 ▪ Additional MT Lines Horsetrail/Northwest ▪ Test unexplained subdued mag high to NW ▪ Better understand geometry of Attic Zone ▪ Tie-in with substanti
Slide 24: Exploration Upside
Exploration Upside Known Attic Future Resource Zone Targets ▪ Approximately $60 ▪ Current focus on ▪ Significant underexplored million spent on testing for Copper area beyond the Attic exploration to date and PGEs Zone 24 24
Slide 25: 2026 Catalysts
Spring 2026: Additional Exploration in Attic Zone, MT and EM surveys Fall 2026: Potential drilling in Attic Zone 2026 Catalysts Ongoing: ▪ Testing with Arca Climate technologies ▪ Advance partnership discussions for Turnagain development ▪ Explore support initiatives with Federal and Provincial Gove
Slide 26: Contact
Contact Holly Millar, External Relations info@gigametals.com +1 (604) 681-2300 www.gigametals.com TSX.V: GIGA | OTCQB: GIGGF | FSE: BRR2 26