Onyx Gold Corp. · TSXV:ONYX

Onyx Gold — Investor Presentation (May 2026)

18 slides from Onyx Gold's investor presentation, May 2026

  1. Slide 1: Strategic Ground. Strong Jurisdictions. Proven Discovery Upside.

    TSXV ONYX OTCQX ONXGF Strategic Ground. Strong Jurisdictions. Proven Discovery Upside. MAY 2026 CORPORATE PRESENTATION www.onyxgold.com

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements Forward looking statements: This presentation contains certain “forward-looking information within the meaning of Canadian securities legislation and "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 (coll

  3. Slide 3: Meet the Team

    Meet the Team BROCK COLTERJOHN DARWIN GREEN IAN CUNNINGHAM-DUNLOP CONOR MCKINLEY ARIS MORFOPOULOS VANESSA PICKERING President & CEO Executive Chairman Executive VP VP Exploration CFO VP, Investor Relations 13 years of experience in Entrepreneurial mining Seasoned mining 15 years of experience Execut

  4. Slide 4: Corporate Snapshot

    Corporate Snapshot TSXV ONYX OTCQX ONXGF Capitalization and Balance Sheet (C$) Shareholder Registry Shares Outstanding1 85.6M 32% 21% Institutional, with top investors: Retail Warrants Outstanding 0 Options Outstanding 4.4M Restricted Share Units (RSUs)2 2.3M ONYX Ownership 9.9% Fully Diluted Shares

  5. Slide 5: Value Creation through Exploration

    Value Creation through Exploration Discovery-focused Explorer in Two of Canada’s Top Gold Jurisdictions Timmins Camp Ontario Eastern Tombstone Gold Belt Becoming The Go-To Explorer Exposure to One of Canada’s Most Exciting in Canada’s #1 Gold Camp New District Plays • Projects: Munro-Croesus, Golden

  6. Slide 6: Becoming the Go-to Explorer in Timmins

    Becoming the Go-to Explorer in Timmins Strategically Located Properties in a Tier-1 Mining-Friendly Jurisdiction 5+ years consolidating mining On or near major productive Untouched for significant periods claims in prime locations at the geological structures (decades) right time in the market Buske

  7. Slide 7: Why Invest in the Timmins Gold Camp

    Why Invest in the Timmins Gold Camp Canada’s Premier Gold Producing Region World-Class Tier-1 Infrastructure & Safe, Mining-Friendly Gold Endowment Experienced Workforce Jurisdiction • World’s Richest Archean Orogenic Gold • Year-round Road, Power, and • Ontario, Canada Consistently Ranked Camp – Pr

  8. Slide 8: Excess Milling Capacity within the Camp

    Excess Milling Capacity within the Camp Growing Demand for Mill Feed to Drive M&A Activity 2.9 g/t Au Existing milling capacity in the district significantly reduces: Average Milling Grade Minimum discovery Permitting Capital Lead Time in 2024 excluding Macassa size required Risk Requirements to Pro

  9. Slide 9: Munro-Croesus Property, Timmins

    Munro-Croesus Property, Timmins Significant Asset in a Favourable Location Munro-Croesus Property Highlights • 112km² Dominant Land Package | 75km east of Timmins • Tier-1 Neighbourhood | Adjacent to 1 producing mine + 2 multi-Moz development projects • Multiple Fertile Structures | Pipestone (8km),

  10. Slide 10: Munro-Croesus Property, Timmins: Recent Greenfield Gold Discoveries

    Munro-Croesus Property, Timmins Significant Asset in a Favourable Location Recent Greenfield Gold Discoveries • Argus West: 2025 discovery 250m southwest of Argus North • Discovery hole: MC25-213: 21.2m at 2.1 g/t Au from just 9.8m depth, incl. 14.0m at 3.0 g/t Au. A second lower zone 26.2m at 1.2 g

  11. Slide 11: Aerial Photo of The Argus Zones Looking East

    Croesus GM Vein Aerial Photo of The Argus Zones Looking East N Argus Main Pipestone Fault Arial Argus North Argus North Drill Rig Trench Barton Creek Fault Drill Rig Argus Fault Argus West TSXV ONYX OTCQX ONXGF 2

  12. Slide 12: Argus North Zone

    Argus North Zone Drill Highlights Top 10 gxm with >25-meter length Top 10 gxm with >3-meter length and >5 g/t Au MC25-232: 208m @ 2.3 g/t Au (78 - 286m) MC25-232: 24.9m @ 5.2g/t Au (218.1 - 243m) MC25-233: 194m @ 1.8 g/t Au (67 - 261m) MC25-171: 18.7m @ 5.2 g/t Au (145.3 - 164m) MC24-163: 69.6m @ 3.

  13. Slide 13: Argus Area Plan Map

    Argus Area Plan Map Timmins Camp’s Newest Gold Discovery 13

  14. Slide 14: Argus Area Long Section

    Argus Area Long Section 1,400m of Strike Length & 500m Vertically – Remains Open Along Strike & Down-Plunge 14

  15. Slide 15: 2026 Drill Plan for Munro-Croesus

    2026 Drill Plan for Munro-Croesus Drill program expanded from 75,000m to 110,000m 15

  16. Slide 16: Yukon's Eastern Tombstone Belt

    Yukon’s Eastern Tombstone Belt Commanding Land Position in a Rising Resource District Yukon Portfolio Highlights • 4 Gold Properties | 227km² in the Tombstone Gold Belt • Proven Neighbourhood | Near Snowline’s Valley discovery & Fireweed’s Macpass / Mactung deposits • Intrusion-Related Upside | Mult

  17. Slide 17: Conclusion

    Conclusion Discovery-focused Explorer in Two of Canada’s Top Gold Jurisdictions One of the largest exploration ~50% of the fully-funded expanded Low exploration costs programs by a junior in Canada at 110,000 metre drill program of ~C$200/metre all-in drilling Munro-Croesus completed - steady newsfl

  18. Slide 18: Contact

    Contact TSXV Brock Colterjohn, MBA, BSc ONYX President & CEO, Director OTCQX ONXGF Vanessa Pickering VP, Investor Relations information@onyxgold.com

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