Announcement PDF Gold, Silver, and Copper in NSW, Australia Chris Byrne, CEO & Managing Director Discovery and Development 25 March 2026 Gold Coast Gold ASX: LGM This presentation may contain certain statements and projections provided by or on behalf of Legacy Minerals Holdings Limited (ASX: LGM, Legacy Minerals, or the Company) with respect to the anticipated future undertakings. These forward-looking statements reflect various assumptions by or on behalf of Legacy Minerals. Accordingly, these statements are subject to significant business, economic and competitive uncertainties and contingencies associated with the mining industry which may be beyond the control of Legacy Minerals which could cause actual results or trends to differ materially, including but not limited to price and currency fluctuations, geotechnical factors, drilling and production results, development progress, operating results, reserve estimates, legislative, fiscal and regulatory developments, economic and financial markets conditions in various countries, approvals and cost estimates, environmental risks, ability to meet funding requirements, share price volatility. Accordingly, there can be no assurance that such statements and projections will be realised. Legacy Minerals makes no representations as to the accuracy or completeness of any such statement of projections or that any forecasts will be achieved. Additionally, Legacy Minerals makes no representation or warranty, express or implied, in relation to, and no responsibility or liability (whether for negligence, under statute or otherwise) is or will be accepted by Legacy Minerals or by any of their respective officers, directors, shareholders, partners, employees, or advisers as to or in relation to the accuracy or completeness of the information, statements, opinions or matters (express or implied) arising out of, contained in or derived from this presentation or any omission from this presentation or of any other written or oral information or opinions provided now or in the future to any interested party or its advisers. In furnishing this presentation, Legacy Minerals undertakes no obligation to provide any additional or updated information whether as a result of new information, future events or results or otherwise. Nothing in this material should be construed as either an offer to sell or a solicitation of an offer to buy or sell securities. It does not include all available information and should not be used in isolation as a basis to invest in Legacy Minerals. This presentation contains exploration results and historic exploration results as originally reported the Company’s Prospectus dated 28 July 2021 and released 9 September 2021 and subsequent ASX market announcements. The Company confirms that it is not aware of any new information that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcements continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Persons’ findings are presented have not been materially modified from the original market announcements. The information in this presentation that relates to Exploration Targets, Exploration Results is based on information compiled by Thomas Wall, a Competent Person who is a Member of the Australian Institute of Geoscientists. Mr Wall is the Technical Director is a full-time employee of Legacy Minerals Limited and a shareholder, who has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr Wall consents to the inclusion in the report of the matters based on his information in the form and context in which it appears. The information in this announcement that relates to the Mineral Resource Estimate and classification of the Drake Project is based on information compiled by Kate Kitchen, who is a Member of the Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Kate Kitchen is an independent consultant employed full time by Mining Plus Pty Ltd. Kate Kitchen has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity which she is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (‘the JORC code’). Kate Kitchen consents to the inclusion in the report of the matters based on the information in the form and context in which it appears. The release of these presentation materials has been authorised by the Board. Disclaimer 2 ASX: LGM Company Overview1 Shares 200M Options 37M (with 25.5M at $0.30 exp Jan 27) Share Price Board Dr David Carland Non-Executive Chairman Douglas Menzies Non-Executive Director Matthew Wall Non-Executive Director Christopher Byrne CEO and Managing Director Thomas Wall Exploration Manager and Executive Director Debt Nil Market Cap $0.145 3 1 At 24 Mar 2026 $29M Dr John Greenfield Chief Technical Advisor Enterprise Value $19M Cash $10M (30 Jan) Management Team Deal flow providing non-dilutive exposure 8 deals since 2023 with companies including Newmont, EarthAi, Rio Tinto, S2 Resources ASX: LGM Why invest in Legacy Minerals and the junior space? The case exposure in gold and silver explorers and pre-development companies 4 1. Gold and silver prices are not being factored into junior company valuations 2. Valuation case strengthens for companies that have proven resources and studies complete, and have moved beyond exploration risk and speculation 3. Companies with a strong cash balance have more resilience Investing in a deeply discounted market (Lion Selection)1 Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Dual track approach - Discovery and Development Strategy to deliver shareholder value 5 1. Discovery Focused discovery to expand Mt Carrington resource providing ongoing, share price catalysts 2. Development Development of the Mt Carrington through study work, permitting. 3. Strategy Implementation • Team with experience in the discovery and development • Corporate connections demonstrate through transactions withing the last three years (Newmont, Rio Tinto, S2R) • Supportive shareholders • Strong balance sheet • Backed by the geology that is known to host world class deposits Discovery Development Note: references on this slide are in the Appendix – Endnotes on Slides 21 47 Ag 79 Au 29 Cu Mt Carrington Large, 115Moz AgEq Open Pit Silver-Gold Mineral Resource1 ASX: LGM Discovery and Development District-scale discovery opportunity with advanced development opportunity 7 Resource 115Moz AgEq1 2025 JORC Mineral Resource Estimate Discovery opportunity Epithermal system with multi-million-ounce potential – analogy with Kainantu- style gold-copper system (>18Moz AuEq)2 Infrastructure advantage Estimated ~$50m of existing infrastructure Significant high-grade intersects 12.82m at 48g/t Au and 2,589g/t Ag from 12m3 18.9m at 5.8% Cu from 58m and 10.1m at 7.26% Cu from 88m3 Near-term catalysts0 2026 Scoping Study, ongoing drilling including high-grade targets Multiple value-creation opportunities through resource growth, development and discovery. Note: references on this slide are in the Appendix – Endnotes on Slides 21, Refer to Slide 22 for Mineral Resources ASX: LGM Project and Company History 8 Mt Carrington Project Ownership History Gold Price ($USD/oz) and Key Historical Project Events MTC Mines places project on C&M (1991) US$350 CRA focus on exploration potential Maiden Au-Ag Resource 0.2Moz AuEq Small scale Au, Ag, Cu mining 1853 - 1960 1989-1993 1994-2007 Drake Resources 2008-2010 MTC Mines Rex Minerals White Rock Minerals 2010-2020 2021-2023 WRM & Thomson Resources JV 2023/2024 - onwards Legacy Minerals ~$3.5M spent ~$20M spent ~$5M spent ~$30M in infrastructure built $6,000 $5,000 $4,000 $3,500 $3,000 $2,500 $2,000 $1,500 $1,000 $500 $0 2005 1999 2007 2003 2001 1991 1993 1995 1997 2015 20117 2019 2021 2023 2025 2009 2011 2013 LGM option to acquire and peg EL’s and ALA New 2025 LGM JORC 2012 MRE 452% growth since 2003 (1.2Moz AuEq)1L LGM Scoping Study Q1 2026 Gold price US$4,500 Resource Update MRE 0.6Moz AuEq Note: references on this slide are in the Appendix – Endnotes on Slides 21, Refer to Slide 22 for Mineral Resources 47 Ag 79 Au 29 Cu Mt Carrington Discovery Opportunity ASX: LGM Why Mt Carrington? Extensive high-grades and wide mineralised zones Interpreted porphyry D-veins in KYDD001 at 52.5m (18.9m at 5.8% Cu from 58m)1 (Comments on Exploration at the Drake Project, Corbett Geological Consulting) • 12.82m at 48g/t Au and 2,589g/t Ag from 12m1 • including 1m up to 230g/t Au and 9,081g/t Ag • 118m at 1.71g/t Au, 6.9g/t Ag, 0.1%Cu and 1.12% Zn from 2m1 • 143m at 1.1g/t Au, 3g/t Ag, and 0.9% Pb+Zn from 0m2 • 8m at 16.92g/t Au, 17g/t Ag, 0.53% Cu, 1.45% Pb and 6.89% Zn from 52m3 Porphyry D-vein Overprinting Examples of epithermal vein textures from drill holes WRDD012 (81m at 82g/t Ag from 40m) and KYDD003 (118m at 1.71g/t Au from 2m)1 10 • 18.9m at 5.8% Cu from 58m and 10.1m at 7.26% Cu from 88m1 Gold and Silver Drill Hits Copper Drill Hits Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Drilling has barely scratched the surface Target Rich Gold, Copper, and Silver Environment 11 • Detailed Airborne Mobile-MT data review has identified significant conductivity trends1 • Experts engaged who are familiar with the MT survey data used by K92 Mining Inc. at the Kainantu Mine • Compelling discovery target opportunities confirmed both near-mine and regionally Across the Mt Carrington Project there are 3,319 drill holes with an average depth 49m MT Resistivity across the Mt Carrington Deposits and White Rock Alteration Halo1 WCDD003 Undrilled porphyry target Attempted drill test - 2015 Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Size of the Prize Potential: Kainantu – Exceptional AuEq Growth1 Epithermal-porphyry systems potential to extend at depth 12 2017 2025 2021 2023 Kainantu 2.2Moz AuEq Kainantu 18Moz AuEq Mt Carrington average drill depth Is 50m 2015 Kainantu acquisition from Barrick 0.8Moz AuEq Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Emerging Gold Discovery (current drilling) First ever diamond drilling intersecting significant gold The first hole, from an eight-hole campaign has returned an outstanding, first pass intercept of1: 40m at 1.0g/t Au from 151m, including: o 9m at 2.7g/t Au from 180m, and o 1m at 5.6g/t Au from 157m New Discovery – Mascotte 13 Cross-section of the Mascotte Mine1,2 Preliminary drilling did not replicate historical silver drill hits (1970) which include1: • 18.3m at 237g/t Ag from 3m2, including: • 9.1m at 394g/t Ag This potentially indicates the presence of a parallel structure or silver rich zone closer to surface Historical High – Grade Silver not tested Open along strike, at depth, and up to surface Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Planned Drill Targets – White Rock Two existing silver dominant deposits open at depth 14 Planned drill programs across Mt Carrington Cross Section of the Mt White Rock North Deposit with Planned Holes (White)1 Note: references on this slide are in the Appendix – Endnotes on Slides 21 ASX: LGM Planned Drill Targets – Mt Carrington Copper and gold targets open at depth and along strike 15 Planned drill programs across Mt Carrington Cross Section of the Mt Carrington Mine1 Note: references on this slide are in the Appendix – Endnotes on Slides 21 47 Ag 79 Au 29 Cu Mt Carrington Development Opportunity ASX: LGM 115Moz Silver-Equivalent Resource1 One of Australia’s highest grade, open-pit silver and gold project 17 • 34.4Mt at 105g/t silver-equivalent (AuEq) containing 0.7Moz Au, 24.3Moz Ag, 147kt Zn, 33kt Pb, 20kt Cu Substantial platform for growth • New MRE provides company exceptional base to start adding ounces • Initial gold-dominant open pit resources highlight potential for lower initial OPEX production • Potential for low CAPEX due to site infrastructure • High-grade underground resource potential yet to be targeted with drilling and incorporated into resource • Project has consistently grown with every new Mineral Resource Estimate Consistent Mineral Resource Growth With Discovery 2025 Mineral Resource1 Note: references on this slide are in the Appendix – Endnotes on Slides 21, Refer to Slide 22 for Mineral Resources ASX: LGM 2026 Scoping Study • 2026 study will evaluate new 2025, 34Mt Mineral Resource (2025 Study only evaluated ~200koz of gold1) • Previous Metal Concentrate - Met. Review by Ausenco identifying a precious metal concentrate as the optimal processing pathway2 • Existing Site Infrastructure - Opens pits pre-stripped, haul roads completed, tailings dam built, 750ML freshwater dam installed, grid easement constructed, minor site infrastructure Power Tailings Dam Water Source Active Mining History Land Use Existing grid Connection Yes, built Yes, built 1853 till 1990s State Forestry New precious metal concentrate planned at brownfields site Financials A$5,000 NPV8 $388M IRR 141% Free Cash Flow $405M Mining Metrics ASIC A$1,726, open-pit, 34koz Au pa, A$47M CAPEX 18 Robust results from limited 2025 Study – only based on ~200koz Gold2 Note: references on this slide are in the Appendix – Endnotes on Slides 21, Refer to Slide 22 for Mineral Resources ASX: LGM 1. 115Moz AgEq1 resource lays a strong foundation for further resource growth • At 105g/t AgEq1, it one of Australia's highest grade open pit silver-gold deposits 3. Focused on gold, silver and copper • Strong long-term macro market thematic 4. Clear strategy to deliver shareholder value • Discovery and development at Mt Carrington, joint ventures & partnerships on generative projects proving discovery upside Legacy Minerals Investment Case 2. Market capitalisation presents significant growth opportunities 19 • Catalysts include 2026 Scoping Study, drilling, and potential resource growth 4. $10 million in cash (30 Jan) • Cash in bank to deliver strategy Discovery and Devlopment ASX: LGM Chris Byrne CEO & Managing Director chris.byrne@legacyminerals.com.au +61 499 527 547 Thank You ASX: LGM Appendix A – Endnotes Intro Slide 4: 1 LSX ASX Release, 9 February 2026, Lion Investor Update February 2026 MTC Slide 6: 1 LGM ASX Release, 12 December 2025, New Silver Targets and Drill Approvals at Mt Carrington MTC Slide 7: 1 LGM ASX Release, 1 September 2025, Metallurgical Study Commences at Mt Carrington Project 2 Independent Technical Report, Kainantu Gold Mine, Updated Integrated Development Plan, Kainantu Project, Papua New Guinea, Definitive Feasibility Study and Preliminary Economic Analysis, National Instrument 43-101 Technical Report, January 1, ASX Release LGM 29 October 2024 3,050gt Silver and 79gt Gold in Historical Drake Drilling MTC Slide 8:1 LGM ASX Release, 12 December 2025, New Silver Targets and Drill Approvals at Mt Carrington MTC Slide 10: 1 ASX Release LGM 29 October 2024 3,050gt Silver and 79gt Gold in Historical Drake Drilling, ASX Release LGM 2 May 2025 Amendments - Release 1 May 2025, Mount Carrington Mines Limited, 17 April 1970, DIGS R00018103, Sixth Annual Report for Period Ending September 15 1992, EL2662 (Drake) CRA Exploration, Prospectus is issued by White Rock Minerals Ltd (“White Rock”) dated 20 August 2010, ASX TMZ Release: 24 October 2022, High Grade Copper Target at Mt Carrington; 2 ASX Release LGM, 2 May 2025, Amendments - Release 1 May 2025; ASX Release LGM, 1 May 2025, Broad and High-Grade Gold 1in Drilling Intercepts; 3 ASX Release LGM, 28 March 2024, Clarification of Mt Carrington Acquisition Announcement MTC Slide 11: ASX Release LGM, 25 August 2025, Drilling Approval and New Targets at Mt Carrington Project MTC Slide 12: 1 Otterburn Announces K92 Completes Purchase of Kainantu Mine From Barrick Gold Corp. and Files Initial Independent Technical Report and Resource Estimate, March 11, 2015 (Otterburn Resources Corp); Growing Production & Transformative Discoveries, Site Visit Presentation, October 23-24, 2024; K92 Mining Inc.; Independent Technical Report Mineral Resource Estimate Blue Lake Porphyry Deposit, Kainantu, Papua New Guinea, K92 Mining Inc., 01 August 2022; 3. Independent Technical Report, Kainantu Gold Mine, Updated Integrated Development Plan, Kainantu Project, Papua New Guinea, Definitive Feasibility Study and Preliminary Economic Analysis, National Instrument 43-101 Technical Report, January 1, 2024. MTC Slide 13: 1 ASX Release LGM, ASX Release LGM, 19 March 2026, Maiden Drilling Makes New Greenfields Gold Discovery, 2 ASX Release LGM, 30 September 2025, New Silver Drill Targets Approved and Drilling Commencing MTC Slide 14: ASX Release LGM, 30 September 2025, New Silver Drill Targets Approved and Drilling Commencing; 2 ASX Release LGM, 11 December 2025, New Silver Targets and Drill Approvals at Mt Carrington MTC Slide 15: 1 ASX Release LGM 29 October 2024 3,050gt Silver and 79gt Gold in Historical Drake Drilling, ASX Release LGM 2 May 2025 Amendments - Release 1 May 2025 MTC Slide 17: 1 LGM ASX Release, 1 September 2025, Metallurgical Study Commences at Mt Carrington Project MTC Slide 18: 1 LGM ASX Release, 12 December 2025, New Silver Targets and Drill Approvals at Mt Carrington, 2 LGM ASX Release, 15 April 2025, Amendment - Release 11 April 2025 Appendix B: 1 LGM ASX Release, 12 December 2025, New Silver Targets and Drill Approvals at Mt Carrington 21 ASX: LGM Appendix B – Mt Carrington Mineral Resources1 The preceding statements of Mineral Resources conform to the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code) 2012 Edition. All tonnages reported are dry metric tonnes. Minor differences may occur due to rounding to appropriate significant figures. For White Rock & White Rock North. AgEq calculated using the formula: AgEq = Ag + 84.0712xAu + 93.2167xCu + 36.0156xZn + 27.0117xPb and Recoveries applied are 72% (Au), 71.7% (Ag), 66% (Cu), 85% (Zn) and 85% (Pb). For Kylo, Strauss, & Red Rock AgEq calculated using the formula: AgEq = Ag + 101.417xAu + 125.477xCu + 35.4288xZn + 28.23323xPb and Recoveries applied are 83.1% (Au), 68.6% (Ag), 85% (Cu), 80% (Zn) and 85% (Pb).For Lady Hampden, Silver King, and Lead Block, AgEq calculated using the formula: AgEq = Ag + 82.4186xAu + 63.0108xCu + 27.0046xZn + 21.5193xPb and Recoveries applied are 88.6% (Au), 90% (Ag), 56% (Cu), 80% (Zn) and 85% (Pb). AgEq formula calculated using silver price of $43/oz, gold price of $3600/oz, copper price of $14000/t, zinc price of $4200/t and the lead price of $3150/t (all AUD). In the opinion of the Company, all elements included in the metal equivalent calculation have a reasonable potential to be sold and recovered based on current market conditions and metallurgical test work up to 2017. 22 Prospect Classification Resource Tonnes and Grade Contained Metal Tonnes (Kt) Au (g/t) Ag (g/t) Cu% Pb% Zn% AgEq (g/t) Au (Koz) Ag (Koz) Cu (kt) Pb (kt) Zn (kt) AgEq (Koz) Strauss Indicated 2,818 1.1 3.1 0.09 0.07 0.6 149 98 281 3 2 16 13,500 Inferred 2,026 1 2 0.08 0.04 0.4 130 63 129 2 1 9 8,468 Kylo Indicated 2,842 1.1 2.1 0.07 0.05 0.4 138 103 191 2 1 11 12,609 Inferred 2,081 0.6 3.8 0.11 0.06 0.6 101 40 251 2 1 13 6,757 Guy Bell Inferred 2,512 0.7 2.3 0.16 0.08 0.6 117 58 188 4 2 15 9,449 Carrington Inferred 2,236 0.5 5.6 0.14 0.08 0.2 83 33 403 3 2 4 5,967 Red Rock Inferred 8,605 0.5 7.4 0.04 0.12 0.49 84 144 2046 3 10 43 23,239 Lady Hampden Indicated 2,136 0.71 62 0.01 0.03 0.07 124 49 4251 0 1 2 8,516 Inferred 2,125 0.74 35 0.01 0.04 0.08 100 51 2388 0 1 2 6,832 Silver King Indicated 469 0.12 80 0.01 0.03 0.07 93 2 1200 0 0 0 1,402 Inferred 106 0.05 53 0.01 0.02 0.05 60 0 180 0 0 0 204 Lead Block Inferred 215 0.21 44 0.01 0.03 0.08 66 2 307 0 0 0 456 White Rock Indicated 3,135 0.05 66 0.02 0.22 0.73 104 5 6629 1 7 23 10,482 Inferred 1,051 0.08 37 0.02 0.16 0.62 72 3 1258 0 2 7 2,433 White Rock North Inferred 2,039 0.05 70 0.01 0.14 0.11 83 4 4592 0 3 2 5,441 Total 34,396 104.7 653 24,294 20 33 146 115,756