Duketon Mining Ltd · ASX:DKM

Duketon Mining — Australian Nickel Conference 2022

21 slides from Duketon Mining's conference presentation, Oct 6, 2022

  1. Slide 1: Advancing the Duketon Nickel Project

    Advancing the Duketon Nickel Project Australian Nickel Conference 6 October 2022 ASX: DKM 1 www.duketonmining.com.au

  2. Slide 2: Cautionary Statement

    Cautionary Statement This presentation has been prepared by Duketon Mining Limited (“Duketon”). The information contained in this presentation is a professional opinion only and is given in good faith. Certain information in this document has been derived from third parties and though Duketon has no

  3. Slide 3: Company Snapshot

    Company Snapshot About Duketon Mining Shareholder Information - as at 7 September 2022 Duketon Mining Limited is a Western Australia focused mineral resources Harmanis 18.4% Holdings exploration and development company with flagship nickel projects at Rosie and Rosie & C2 Institutional 9.2% Nickel R

  4. Slide 4: Experienced Board and Management

    Experienced Board and Management SEAMUS CORNELIUS – Non-Executive Chairman Mr Cornelius is an experienced international corporate lawyer and company director. He was a partner with a major international law firm from 2000 to 2010 and resided in China from 1993 until 2017. In 2010, Mr Cornelius comme

  5. Slide 5: Investment Highlights

    Investment Highlights HIGH DEMAND FOR NICKEL Electric vehicle batteries Commodity for a clean future Class 1 nickel sources likely to demand a premium POTENTIAL UPSIDE Exploration upside within Duketon Belt - drilling and gpx underway Rosie & C2 open along strike and at depth MULTIPLE DEVELOPMENT OP

  6. Slide 6: www.duketonmining.com.au

    6 www.duketonmining.com.au

  7. Slide 7: Strategic Location/Value Proposition

    Strategic Location/Value Proposition Large land position – multiple projects 94,300t of nickel metal in JORC resources* 14,100t of copper metal in JORC resources 255koz PGE’s in JORC resources Positive metallurgical results at Rosie and C2 Positive scoping study at Rosie Access to most prospective t

  8. Slide 8: Positive Scoping – Platform for Growth

    Positive Scoping – Platform for Growth* Confirms the viability of a mining, trucking & toll treating operation assuming an 8-year mine life Ni price of US$8/lb (range US$7.50/lb to US$8.50/lb) NPV5 of ~$161M (range $56M to $204M) IRR of ~54% (range 21% to 66%) Pre-tax cashflow of ~$223M (range $91M

  9. Slide 9: 94kt Ni, 14kt Cu, 255koz PGE’s & growing

    94kt Ni, 14kt Cu, 255koz PGE’s & growing Rosie Nickel Deposit Mineral Resource Estimate 2022* 56,300t nickel, 11,800t copper, 229,000oz PGE’s C2 Nickel Deposit Mineral Resource Estimate 2015* 38,000t nickel, 2,300t copper, 26,000oz PGE’s Both deposits open at depth and along strike 9 See ASX announc

  10. Slide 10: Rosie Long Section

    Rosie Long Section 10 See ASX Announcement 9 September 2021 www.duketonmining.com.au

  11. Slide 11: Rosie Drill Core

    Rosie Drill Core 9.22M @ 4.96% Ni, 0.41% Cu and 2.41 g/t Pt+Pd* 11 *Includes 5.65m @ 7.1%Ni, 0.5%Cu & 3.8g/t Pt+Pd See ASX Announcement 2 December 2014 www.duketonmining.com.au

  12. Slide 12: C2 Cross Section

    C2 Cross Section Large Tonnage Cut-Off (Ni %) Tonnes Grade (Ni %) Ni (t) 0.3 18,775,665 0.5 88,902 0.4 10,776,805 0.6 60,356 0.5 5,721,787 0.7 37,967 0.6 3,008,201 0.8 23,249 0.7 2,019,653 0.8 16,940 0.8 1,018,985 0.9 9,503 0.9 641,066 1.0 6,265 1 148,053 1.1 1,577 1.1 62,461 1.1 694 12 See ASX Anno

  13. Slide 13: Positive Metallurgical Testwork – Rosie

    Positive Metallurgical Testwork – Rosie High Quality Concentrate Ni recovery up to 97% Intermediate concentrate up to 22% Ni Nickel concentrate grading 16% Ni and 7g/t total PGE’s from massive ore Bulk concentrate grading 15% (Ni+Cu) and 12g/t total PGE’s from violarite ore High Fe:MgO PGE’s recover

  14. Slide 14: Positive Metallurgical Testwork – C2

    Positive Metallurgical Testwork – C2 High Quality Concentrate C2 Responds well to conventional flotation Produces a saleable concentrate Nickel recovery as high as 77.3% to a saleable grade concentrate Fe:MgO 12-20:1 Concentrate grades range from 11-18% Ni Latent value unlocked 14 See ASX Announceme

  15. Slide 15: Duketon North

    Duketon North Multiple EM Responses and Ni Sulphides Ultramafics of Duketon North highly prospective for Ni Sulphides Extensive surface geochemistry, U/M contacts outlined by elevated Cu and Ni Historic drilling has intersected sulphides within serpentinised peridotites Ultramafic contacts not speci

  16. Slide 16: Tate

    Tate Mafic Intrusive Model Magnetics reveal the presence of two features – likely intrusives with remnant magnetism Interpreted to be late mafic intrusives Beneath 8m of transported cover 6km x 1.2km & 2.2km x 1.2km BOH geochemistry 143ppm Ni, 86ppm Cu, 86ppm Zn, 2710ppm Mn and 9.9% Fe Historic wide

  17. Slide 17: Concluding Remarks

    Concluding Remarks MINING STUDY Study being refined based on updated resource model. Assessing standalone concentrator, Rosie + C2 EXPLORATION Ground EM underway Drilling underway CORPORATE Cash (+ liquids) balance of ~$18.5M Market Capitalisation $36.0M Enterprise Value $17.5M LEVERAGED TO DEVELOPM

  18. Slide 18: Stuart Fogarty, Managing Director, Duketon Mining Limited

    Stuart Fogarty Managing Director Duketon Mining Limited Level 2, 25 Richardson Street West Perth WA 6005 Ph: +61 8 6315 1490 Website: duketonmining.com.au Email: admin@duketonmining.com.au www.duketonmining.com.au 18

  19. Slide 19: Appendix 1: Duketon Nickel Resources

    Appendix 1 : Duketon Nickel Resources Rosie Nickel Resource >1% NiEq Total Ni Cu Co NiEq Classification Sulphide Tonnes PGEs (%) (%) (ppm) (%) (g/t) Pentlandite 1,191,555 2.4 0.42 642 2.7 3.76 Indicated Violarite 820,999 1.7 0.39 504 2.5 2.75 Sub-Total 2,012,553 2.1 0.41 585 2.6 3.35 Pentlandite 694

  20. Slide 20: Appendix 1: Duketon Nickel Resources

    Appendix 1 : Duketon Nickel Resources C2 Nickel Resource >0.5%Ni Classification Oxidation Tonnes Ni (%) Cu (%) Pt (ppb) Pd (ppb) S (%) Fresh 5,100,000 0.7 0.04 60 79 3.3 Inferred Transitional 600,000 0.6 0.04 72 105 0.9 Total 5,700,000 0.7 0.04 61 82 3.1 Table 3. C2 Mineral Resource Grade C2 Nickel

  21. Slide 21: Appendix 2: C2 Grade Tonnage

    Appendix 2 : C2 Grade Tonnage Figure 1: Grade Tonnage Curve at Ni cut-offs. Cut-Off (Ni %) Tonnes Grade (Ni %) Ni (t) 0.3 18,775,665 0.5 88,902 0.4 10,776,805 0.6 60,356 0.5 5,721,787 0.7 37,967 0.6 3,008,201 0.8 23,249 0.7 2,019,653 0.8 16,940 0.8 1,018,985 0.9 9,503 0.9 641,066 1.0 6,265 1 148,053

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