Dakota Gold Corp. · AMEX:DC

Dakota Gold — Technical Presentation (February 2025)

25 slides from Dakota Gold's technical presentation, Feb 7, 2025

  1. Slide 1: Richmond Hill Oxide Heap Leach Gold Project: New S-K 1300 Initial Assessment Resource

    Richmond Hill Oxide Heap Leach Gold Project New S-K 1300 Initial Assessment Resource NYSE American: DC Webcast Review Presentation Feb 7, 2025 dakotagoldcorp.com

  2. Slide 2: Disclaimer

    Disclaimer Dakota Gold is a Forward-Looking Statements South Dakota-based, This communication contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. When used in this communi

  3. Slide 3: Homestake District: New Opportunities

    Dakota Gold Homestake District: New Opportunities Largest Land Package in Homestake District, SD Legend - Homestake District and Key Projects​ Dakota Gold Land Package​ Richmond Hill – Private Land Homestake Iron Formation ​Richmond Hill resource cone Wharf open pit mine Maitland - Private Land Over

  4. Slide 4: Richmond Hill Oxide Heap Leach Gold Project – Developing One of the Next Gold Mines in the USA

    Richmond Hill Oxide Heap Leach Gold Project Maitland – Developing One of the Next Gold Mines in the USA Richmond Hill 5 km (1.9 miles) New S-K 1300 Mineral Resource north of Wharf • Heap Leachable Mineral Resource: • 3.65 M oz of M&I Gold • 38.1 M oz of M&I Silver • 2.61 M oz of Inferred Gold • 22.8

  5. Slide 5: Richmond Hill - Heap Leachable Resource

    Richmond Hill - Heap Leachable Resource AuEq Mineral resource is based on a RESOURCE CUT OFF AuEq GOLD SILVER GOLD SILVER KTONNES constrained block model using drill results CATEGORY GRADE (G/T) (G/T) (G/T) (KOZ) (KOZ) up to November 2, 2024 using an inverse (G/T) distanced squared methodology and t

  6. Slide 6: Grade / Tonnage Curve for M&I Leach Resource

    Grade vs tonnage Curve for M&I Leach Resource Grade / Tonnage Curve • The grade / tonnage curve for the M&I 300 Dakota Gold’s 5.0000 Approximate average Leach resource provides insight into 4.5000 resource cut-off the resource and what it looks like at all 250 4.0000 possible cut-offs. Grams per Ton

  7. Slide 7: Richmond Hill – Combined Heap Leach & Mill Resource

    Richmond Hill – Combined Heap Leach & Mill Resource Mineral resource is based on a RESOURCE AuEq GOLD SILVER GOLD SILVER constrained block model using drill results KTONNES up to November 2, 2024 using an inverse CATEGORY (G/T) (G/T) (G/T) (KOZ) (KOZ) distanced squared methodology and the Measured M

  8. Slide 8: Significant Resource Growth

    Significant Resource Growth In addition to Dakota Gold’s successful drill program, the increase in resources from the maiden resource was a result of: Changes to heap leach processing assumptions for • Changes to processing methods and resulting both oxide and a portion of the metal recovery; transi

  9. Slide 9: Figure 1: Richmond Hill Resource – Plan View

    Figure 1: Richmond Hill Resource – Plan View Heap Leach Resource Milled Resource milled portion of the resource dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 9

  10. Slide 10: Figure 2: Heap Leachable Resource – Cross Section A-A’

    Figure 2: Heap Leachable Resource – Cross Section A-A’ dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 10

  11. Slide 11: Figure 3: Heap Leachable Resource – Cross Section B-B’

    Figure 3: Heap Leachable Resource – Cross Section B-B’ dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 11

  12. Slide 12: Figure 4: Combined Heap Leach and Milled Resource – Cross Section A-A’

    Figure 4: Combined Heap Leach and Milled Resource – Cross Section A-A’ dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 12

  13. Slide 13: Figure 5: Combined Heap Leach and Milled Resource – Cross Section B-B’

    Figure 5: Combined Heap Leach and Milled Resource – Cross Section B-B’ dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 13

  14. Slide 14: Figure 6: Combined Heap Leach and Milled Resource – Cross Section C-C’

    Figure 6: Combined Heap Leach and Milled Resource – Cross Section C-C’ dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 14

  15. Slide 15: Figure 7: Heap Leachable Resource – Isometric View

    Figure 7: Heap Leachable Resource – Isometric View Heap Leach Resource Insert cross section Milled Resource milled portion of the resource dakotagoldcorp.com NYSE-A: DC dakotagoldcorp.com || NYSE-A: DC 15

  16. Slide 16: Richmond Hill - Potential Step-Out & Infill Areas

    Richmond Hill - Plan View Potential Step-Out & Infill Areas • Mineralization is very shallow with portions of the resource exposed at surface. Heap Leach Resource • The heap leachable resource remains open to the north and in the southeast area of Richmond Hill. • Both areas are currently in the pro

  17. Slide 17: Richmond Hill - Heap Leach Open Pit Conceptual Mine Site Plan

    Richmond Hill- Claim Boundary Heap Leach Open Pit Conceptual Mine Site Plan​ Phase 2 Leach Pad In-Pit Overburden Storage Areas Resource Cone Phase 1 Heap Leach – M & I + i Leach Pad Site Infrastructure (WTP, Crusher, Merrill-Crowe) Resource Cone Heap Leach – M & I Admin & Maintenance Shop Existing N

  18. Slide 18: Maitland Gold Project - High-grade exploration optionality

    Maitland Gold Project - High-grade exploration optionality West Ledge System - Approx. 6,000 Drill Holes underground - Avg grade of 11.63 g/t Au and width of 6.1 m - 6 million oz gold produced JB Gold Zone - Approx. 47 Drill Holes from surface - Avg grade of 10.76 g/t Au and width of 4.0 m dakotagol

  19. Slide 19: Richmond Hill – Barrick Gold Option Agreements

    Richmond Hill – Barrick Gold Option Agreements “Richmond Hill’s private land On February 3, 2025, Barrick extended position and status as an Dakota Gold’s Richmond Hill and inactive mine provide a pathway from feasibility Homestake options until Patrick Malone Senior Vice President through permittin

  20. Slide 20: Richmond Hill - Timeline to Production

    Richmond Hill - Timeline to Production 2024 2025 2026 2027 2028 2029 2030 S-K 1300 resource update IA with Cash Flow Feasibility Study (FS) Baseline Data Collection Permitting Engineering & EPCM Construction Production dakotagoldcorp.com | NYSE-A: DC 20

  21. Slide 21: Richmond Hill - Ready to become one of the next independent US gold mines

    Richmond Hill - Ready to become one of the next independent US gold mines, in a market with limited assets 2024A/E 100 kozpa as EV (US$M) EV Prod’n % of per Independent Gold Projects Company (US$M) (AuEq koz) production 100kozpa Being Advanced in America Alamos Gold $8,705 567 18% $1,535 (Estimated

  22. Slide 22: Homestake District: New Opportunities

    Homestake District: New Opportunities Richmond Hill Legend - Homestake District and Key Projects​ Maitland Gold Project Dakota Gold Land Package​ Richmond Hill – Private Land Gold Project Homestake Iron Formation ​Richmond Hill resource cone • Private Land Wharf open pit mine Maitland - Private Land

  23. Slide 23: Richmond Hill is a Top Tier Gold Project

    Richmond Hill is a Top Tier Gold Project Maitland • Large heap leachable gold project, resource open for expansion Richmond Hill • Private land package with state permitting primacy 5 km (1.9 miles) north of Wharf • Financial proposal for development and construction with Orion • Potentially lower d

  24. Slide 24: Richmond Hill Oxide Heap Leach Gold Project: New S-K 1300 Initial Assessment Resource

    Richmond Hill Oxide Heap Leach Gold Project New S-K 1300 Initial Assessment Resource NYSE American: DC Webcast Review Presentation Feb 7, 2025 dakotagoldcorp.com

  25. Slide 25: Media and Investor Relations

    MEDIA AND INVESTOR RELATIONS Robert Quartermain Co-Chair, Director, President and CEO O +1 778 655 9638 Stephen O’Rourke Co-Chair, Director and Managing Director info@dakotagoldcorp.com O +1 605 717 2540 Carling Gaze @dakotagoldcorp VP of Investor Relations and Corporate Communications O +1 605 679

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