Announcement PDF Australia's Next Standalone Gold Producer in the Heart of WA Goldfields Investor Presentation March 2026 Important disclaimers Nature of Document This Presentation is provided on the basis that neither the Company nor its respective officers, shareholders, related bodies, corporate, partners, affiliates, employees, representatives or advisers, make any representation or warranty (express or implied) as to the accuracy, reliability, relevance or completeness of the material it contains. Nothing contained in the Presentation is, or may be relied upon, as a promise, representation or warranty, whether as to the past or the future, and the Company hereby excludes all warranties that can be excluded by law. The Presentation The presentation contains ‘forward-looking statements’. By their nature, forward-looking statements involve known and unknown risks, uncertainties and other factors because they relate to events and depend on circumstances that may or may not occur in the future, and assumptions which may or may not prove to be correct (and may be beyond the Company’s ability to control or predict), any (or all) of which may cause the actual results or performance of the Company to be materially different from the results or performance expressed or implied by such forward-looking statements. No representation is made that any forward-looking statement will come to pass, that any forecast result will be achieved, or that any assumption on which a forward-looking statement is based is reasonable. Forward- looking statements are made as at the date of this Presentation, and the Company disclaims any obligation or undertaking to release any update of, or revision to, any forward-looking statement contained in this Presentation. Summary Information The material contained in this Presentation is a summary and for information purposes only. The information in this Presentation is general in nature and does not purport to be accurate nor complete, nor does it contain all of the information that an investor may require in evaluating a possible investment in the Company, nor does it contain all the information which would be required in a disclosure document or prospectus prepared in accordance with the requirements of the Corporations Act 2001 (Cth) (Corporations Act). It has been prepared by the Company with due care but no representation or warranty, express or implied, is provided in relation to the accuracy, reliability, fairness or completeness of the information, opinions or conclusions in this Presentation by the Company or any other party involved in its preparation. Reliance should not be placed on information or opinions contained in this Presentation and, the Company does not have any obligation to finalise, correct or update the content of this Presentation. Certain data used in this Presentation may have been obtained from research, surveys or studies conducted by third parties, including industry or general publications. To the maximum extent permitted by law, the Company is not responsible for updating, nor undertakes to update, this Presentation. It should be read in conjunction with the Company’s other periodic and continuous disclosure announcements lodged with the ASX, which are available at www.horizonminerals.com.au/announcements/. Not an offer The information contained in the Presentation is for information purposes only. The Presentation does not comprise a prospectus, product disclosure statement or other offering document under Australian law (and will not be lodged with the Australian Securities and Investments Commission) or any other law. The Presentation also does not constitute or form part of any invitation, offer for sale or subscription or any solicitation for any offer to buy or subscribe for any securities nor shall they or any part of them form the basis of or be relied upon in connection therewith or act as any inducement to enter into any contract or commitment with respect to securities. In particular, the Presentation does not constitute an offer to sell or a solicitation to buy, securities in the United States of America. Not investment advice The information contained in the Presentation is not investment or financial product advice and is not intended to be used as the basis for making an investment decision. Please note that, in providing the Presentation, the Company has not considered the objectives, financial position or needs of any particular recipient. The information contained in the Presentation is not a substitute for detailed investigation or analysis of any particular issue and does not purport to be all of the information that a person would need to make an assessment of the Company or its assets. Current and potential investors should seek independent advice before making any investment decisions in regard to the Company or its activities. JORC Code It is a requirement of the ASX Listing Rules that the reporting of ore reserves and mineral resources in Australia comply with the Joint Ore Reserves Committee’s Australasian Code for Reporting of Mineral Resources and Ore Reserves (JORC Code). Investors outside Australia should note that while Ore Reserve and Mineral Resource estimates of the Company in this presentation comply with the JORC Code (such JORC Code-compliant ore reserves and mineral resources being "Ore Reserves" and "Mineral Resources" respectively), they may not comply with the relevant guidelines in other countries and, in particular, do not comply with (i) National Instrument 43-101 (Standards of Disclosure for Mineral Projects) of the Canadian Securities Administrators (the "Canadian NI 43-101 Standards"); or (ii) Item 1300 of Regulation S-K, which governs disclosures of mineral reserves in registration statements filed with the US Securities and Exchange Commission. Information contained in this document describing mineral deposits may not be comparable to similar information made public by companies subject to the reporting and disclosure requirements of Canadian or US securities laws. You should not assume that quantities reported as “resources” will be converted to reserves under the JORC Code or any other reporting regime or that the Company will be able to legally and economically extract them. Authorised for release to the ASX by the Board of Directors of Horizon Minerals Ltd. 2 Important disclaimers Forward Looking and Cautionary Statement As noted above, some statements in this Presentation regarding estimates or future events are forward looking statements. They include indications of, and guidance on, future earnings, cash flow, costs and financial performance. Forward looking statements include, but are not limited to, statements preceded by words such as “planned”, “expected”, “projected”, “estimated”, “may”, “scheduled”, “intends”, “anticipates”, “believes”, “potential”, “could”, “nominal”, “conceptual” and similar expressions. Forward looking statements, opinions and estimates included in this Presentation are based on assumptions and contingencies which are subject to change without notice, as are statements about market and industry trends, which are based on interpretations of current market conditions. Forward looking statements are provided as a general guide only and should not be relied on as a guarantee of future performance. Forward looking statements may be affected by a range of variables that could cause actual results to differ from estimated results, and may cause the Company’s actual performance and financial results in future periods to materially differ from any projections of future performance or results expressed or implied by such forward looking statements. These risks and uncertainties include but are not limited to liabilities inherent in mine development and production, geological, mining and processing technical problems, the inability to obtain any additional mine licenses, permits and other regulatory approvals required in connection with mining and third party processing operations, competition for among other things, capital, acquisition of reserves, undeveloped lands and skilled personnel, incorrect assessments of the value of acquisitions, changes in commodity prices and exchange rate, currency and interest fluctuations, various events which could disrupt operations and/or the transportation of mineral products, including labour stoppages and severe weather conditions, the demand for and availability of transportation services, the ability to secure adequate financing and management’s ability to anticipate and manage the foregoing factors and risks. There can be no assurance that forward looking statements will prove to be correct. Statements regarding plans with respect to the Company’s mineral properties may contain forward looking statements in relation to future matters that can only be made where the Company has a reasonable basis for making those statements. The forward looking statements in this Presentation are based on current expectations, estimates, forecasts and projections about the Company and the industry in which it operates. They do, however, relate to future matters and are subject to various inherent risks and uncertainties. Actual events or results may differ materially from the events or results expressed or implied by any forward looking statements. The past performance of the Company is no guarantee of future performance. You are cautioned not to place undue reliance on any forward looking statement. The forward looking statements in this Presentation reflect views held only as at the date of this Presentation. None of Horizon Minerals Limited or its directors, officers, employees, agents or contractors makes any representation or warranty (either expressed or implied) as to the accuracy or likelihood of fulfilment of any future looking statement, or any events or results expressed or implied in any forward looking statement, except to the extent required by law. The Company believes that it has a reasonable basis for making the forward looking statements in the Presentation, including with respect to any production targets and financial estimates, based on the information contained in this and previous ASX announcements. Aspirational Statement The Company’s vision to be a ~100kozpa producer in this presentation are aspirational statements (and not a production targets) and the Company does not have reasonable grounds to believe this can be achieved. These statements are of an aspiration nature as the vision to be a ~100kozpa producer is dependent on several factors including the exploration success, ore reserves and mineral resources definition, feasibility studies and development of an extended mine plan. Mineral Resources and Ore Reserves This Presentation contains estimates of the Company's Mineral Resources and Ore Reserves. Refer to Slide 24 to 26. The information in this Presentation that relates to the Company’s Mineral Resources and Ore Reserves has been extracted from the Company's previous ASX announcements including: 1. ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 and 2. ASX announcement “Gold Ore Reserve Update” dated 17 February 2026. Copies of these announcements are available at www .asx.com.au or horizonminerals.com.au/announcements. The Company confirms that it is not aware of any new information or data that materially affects the information included in those announcements and, in relation to the estimates of the Company’s Mineral Resources and Ore Reserves, that all material assumptions and technical parameters underpinning the estimates in the announcements continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from those announcements. Production Targets This Presentation contains production targets and forecast financial information derived from those production targets (including in respect of all-in sustaining costs and capital costs). The information in this Presentation is underpinned by 17% Inferred and 73% Measured and Indicated Mineral Resources as detailed in the ASX Announcement "ASX Announcement “Studies Support Standalone Gold Development in WA Goldfields’” dated 17 February 2026. There is a low level of geological confidence associated with Inferred Mineral Resources and there is no certainty that further exploration work will result in the determination of Indicated Mineral Resources or that the production target itself will be realised. The stated production targets are based on the Company's current expectations of future results or events and should not be solely relied upon by investors when making investment decisions. Further evaluation work and appropriate studies are required to establish sufficient confidence that targets can be achieved. The Company confirms that it is not aware of any new information or data that materially affects the information included in the ASX announcements relating to the Company’s published production targets. All material assumptions and technical parameters underpinning the production targets or forecast financial information derived from production targets (as applicable) in the relevant ASX announcement continue to apply and have not materially changed. 3 Investment proposition Gold production from Black Swan Processing Hub fully funded2 4 An attractively priced West Australian gold developer with near-term growth Esperance Albany Geraldton Perth Black Swan Processing Hub 2.2Mtpa (currently in C&M) with pathway to refurbish / convert to gold processing Mineral Resource Estimate1 1.9Moz 34.3Mt @ 1.7g/t Au Regional Landholding +1,150km² Projects 20.2Moz Ag 104kt Zn Carnarvon Studies support development of a gold operation producing +100koz p.a. from the refurbished Black Swan Processing Hub Expedited, low capital, hub-and-spoke model which leverages existing 100%-owned processing infrastructure – FEED Studies underway – Long lead items purchased Targeting high-margin gold production from Black Swan starting in mid-2027 1.9Moz1 MRE with major drilling program underway – better definition & extension of mineable ounces & testing new regional targets Kalgoorlie 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 2. Fully funded including existing cash, Placement proceeds (refer ASX Announcement 19 February 2026 Successful A$175M capital raising) and expected Share Purchase Plan proceeds . Positive Black Swan Study Results and Equity Raising Positive Black Swan study results – a low capital intensity pathway to +100kozpa • Pre-production capital – A$160.5M & ~A$1,500/oz capital intensity • Payback – 18 months from plant commissioning1 • NPV / IRR – Project pre-tax NPV8 ~A$631M & Project IRR 83%1 • Production – average ~102kozpa • Operating Cost – C1 A$2,852/oz & AISC A$3,353/oz Fully funded to refurbish Black Swan plant and commence mining and gold production2 • Two tranche, underwritten A$175M2 Placement • Share Purchase Plan now open to A$10M2 Expedited path to Black Swan first gold production mid-2027 • Infrastructure – low risk entry to +100kozpa via existing plant (estimated replacement value +A$200M) & Kalgoorlie location • Approvals – major approvals in place with construction from mid-2026 Near term value accretive opportunities under assessment3 5 Fully funded to refurbish Black Swan Processing Hub and commence gold production 1. A$5,500/oz gold price 2. Fully funded including existing cash, Placement proceeds (refer ASX Announcement 19 February 2026 Successful A$175M capital raising) and expected Share Purchase Plan proceeds 3. The Company is considering accretive opportunities that may extend mine life and may include joint ventures, toll milling, ore purchase arrangements, asset purchases or other corporate transactions 0 2 4 6 8 10 $0.00 $0.50 $1.00 $1.50 $2.00 Feb-25 Apr-25 Jun-25 Aug-25 Oct-25 Dec-25 Feb-26 Million Volume Price Horizon Minerals – at a glance An attractively priced West Australian gold developer with near-term growth potential Current Units Capital structure (Post Offer) 1.08(1) A$/sh Share price 256.4(1) M Ordinary shares 4.5(1) M Options and performance rights 276.9 A$M Market capitalisation 114.1(2) A$M Cash and cash equivalents Nil(2) A$M Debt 162.8 A$M Enterprise value 1. At 5 March 2026 2. At 9 March 2026 - excludes $120M from tranche 2 of the capital raising (subject to shareholder approval at the EGM on 7 April 2025), any funds raised from the Share Purchase Plan and listed investments with a value of ~A$21.4M Warren Hallam Non-Executive Director Brendan Shalders Chief Financial Officer Adrianna Skok-Muir Group Mining Engineer Rob Waugh Non-Executive Director Isabel Macchia Company Secretary Dirk Richards Project Manager Indicative Share Register Research Coverage Adjusted to match share structure and volume post 15-to-1 capital consolidation effective 9 December 2025 Directors and Management Institutions Golden Crane HNW, Retail and Others Share Trading & Price Horizon Minerals – Board and Management 7 Key experience in operations and value delivery Ashok Parekh Non-Executive Chair Grant Haywood Managing Director Rob Waugh Non-Executive Director Warren Hallam Non-Executive Director Christian Price GM Corporate Development Brendan Shalders CFO/Joint CoSec Stephen Guy Chief Geologist Adrianna Skok-Muir Group Mining Engineer Isabel Macchia Company Secretary Project portfolio • Large 1,167km2 land package in an attractive geological setting centred around Kalgoorlie / Coolgardie • 1.9Moz Group Mineral Resource1 (34.3Mt @ 1.7g/t Au) with ~50% contained within the cornerstone Burbanks and Boorara deposits • 2.2Mtpa Black Swan processing plant – standalone processing hub to unlock the value of the significant resources base • Additional value and optionality from the high-grade Nimbus Silver-Zinc deposit (contains 20.2Moz Ag, 104kt Zn, and 77koz Au) located 44km from Black Swan 8 Strategically constructed gold portfolio centered around major geological structures 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 Our Strategy 9 An attractively priced West Australian gold developer with near-term growth 2027 onwards First Black Swan gold production by mid-2027 Now Toll treatment complete Ore stockpile established Operational de-risking underway Next 12 months Black Swan refurbishment and gold processing conversion Mining commencement late 2026 All elements in place to support aspirational target to become a ~100kozpa GOLD producer* Production Growth Studies Upgrade and extend Mineral Resources Extend initial +5 year mine life Grow Mineral Resources and drill test new exploration targets Value accretive M&A Black Swan Studies complete FEED Studies underway Complete Nimbus production at Black Swan Studies Multiple individual PFS updates Combined PFS update Commence Nimbus Studies and drill plan *This is an aspirational statement (and not a production target), the Company does not yet have reasonable grounds to believe the vision can be achieved. Refer to the Aspirational Statements section in the Disclaimers section of this presentation for further information.    Production Ready A 1.9Moz Mineral Resource1 with processing infrastructure and growth 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 10 Black Swan Processing Hub1 • ~50km northeast of Kalgoorlie • Comminution circuit suitable for gold processing after refurbishment and addition of a carbon in leach (CIL) circuit • Study fully utilises existing 2.2Mtpa processing capacity • Estimated replacement value of +A$200M • Capital cost estimate for Black Swan of A$101M ensures long-term reliability, flexibility and operability • New plant construction risk reduced & key permits in place • Provides a platform for potential regional consolidation 11 Facilitates hub and spoke operating model 1. Refer ASX Announcement “Studies Support Standalone Gold Development in WA Goldfields’” dated 17 February 2026 PROCESSING Black Swan Processing Hub 12 Existing flotation circuit and planned changes to facilitate gold production GOLD CONVERSION REFURBISHMENT FUTURE SULPHIDE CIRCUIT REFURBISHMENT OPTION Au LONG LEAD ITEMS ORDERED MOTORS - VSD Production ramp-up • Boorara stockpile 460kt (14.2koz) – a de- risked startup • Baseload open pit feed with supplementary high grade underground sources • Early mine plan underpinned by high confidence Mineral Resources and Ore Reserves 13 Cash flow and future baseload open pit feed PRODUCTION Hub and Spoke Model producing 546koz in 5 years 14 Multiple ore sources feeding into the Black Swab Processing Hub1 1. Refer ASX Announcement “Studies Support Standalone Gold Development in WA Goldfields” dated 17 February 2026 Years 1 – 4 106.6koz BOORARA S/P & OPEN PIT Years 3 – 5 212.1koz OTHER OPEN PIT AND U/G Years 2 – 5 51.5koz COOTE AND CRAKE OPEN PITS Years 2 – 5 128.8koz BURBANKS OPEN PIT Years 1 – 4 47.4koz CANNON AND PENNYS U/G 64km 110km 48 - 80km 42 - 110km 90km BLACK SWAN PROCESSING HUB Benefits of the Black Swan refurbishment 15 Faster, cheaper & lower risk Refurbishment1 New Build2 ~$100M >$200M 12 months 18 – 24 months Major approvals in place New permitting required Reduced environmental footprint Higher future impact Cost Timeline Approvals Sustainability 15 1. As released to the ASX on 17 February 2026 “Studies Support Standalone Gold Development” 2. Based on the Astral Gold Mandilla Gold Project Pre-Feasibility Study released to the ASX on 25 June 2025 Study Outcomes - Robust economic outcomes 16 Strong cash generation and financial metrics 1. At a base case gold price of A$5,500/oz. At 9 March 2026 current Spot price is A$7,300/oz 2. Represents economics at a Project level and excludes corporate costs 3. From the start of commissioning 546koz gold production LOM $131M maximum capital drawdown C1 Cost A$2,852/oz1 AISC A$3,353/oz1 0 200 400 600 800 1,000 1,200 Gold Price (+/- 20%) Grade (+/- 20%) Site Opex (+/- 20%) Recovery % (+/- 3%) BSP Opex (+/- 22%) BSP Capex (+/- 20%) Site Capex (+/- 20%) NPV A$M Pessimistic NPV Optimistic NPV BASE PROJECT NPV8% 631.3 M CY 2027 CY 2026 Work Streams and Deliverables Area Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Lake Johnston and Phillips Find Cash Corporate Equity Raise - A$175M + SPP Burbanks MRE Update Development & Growth Resource Extension & Grade Control drilling Boorara and Phillips Find Mining & Ore Stockpiling Mining & Operations Underground Mobilisation & Development Underground High-Grade Ore Production Black Swan Plant 2.2Mtpa Studies Complete Black Swan Processing Hub Front End Engineering Design (FEED) Final Investment Decision (FID) Black Swan Accommodation Construction Black Swan Plant Construction Black Swan Plant Commissioning Black Swan Plant Gold Production Key Milestones and Timing 17 Pathway to gold production from Black Swan Processing Hub Project Upside A 1.9Moz Mineral Resource1 with processing infrastructure and growth 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 18 Burbanks high-grade underground mine • Located on a granted Mining Lease 9km south of Coolgardie, WA • Historic underground mining produced 324koz @ 22.7g/t Au • Large 465.5koz open pit and high- grade underground Mineral Resource3 • Significant extension potential with only 30% of the upper 500m mineralised horizon tested to date1 • Results from ~30,000m drilling program include 0.96m @ 1,762g/t Au and 2m @ 235.7g/t Au2 • Mineral Resource upgrade planned for mid-2026 before expected inclusion into the PFS and updated life of mine plan 19 High-grade ore source not included in the current Black Swan studies & LOM GROWTH 1. Refer ASX Announcement (ASX:GRS) “Global Gold Resource Increases 57% to 520,134 oz” dated 5 July 2023 for all exploration details 2. Refer ASX announcements ‘Ultra High Grades Returned in Burbanks Phase 1 Drilling” dated 17 December 2025 and “Continued High Grade Success from Burbanks Phase 1 Drilling” dated 28 January 2026 3. Refer SX announcement (ASX:GRS) “High-Grade Intercepts Extends Potential at Burbanks” dated 5 October 2023 Black Swan exploration potential • Previous exploration largely targeting nickel sulphide mineralisation – only 5% of drill assays have tested for gold • Target areas adjacent to the Mt Monger fault which is associated with several regional gold mining operations • Gold prospectivity of the Black Swan area demonstrated with drill intersections grading up to 6.41g/t Au1 • Numerous gold nuggets located1 • Identified a new 6.5km-long gold trend around Black Swan • Initial aircore 2,000m drill program planned for H1 2026 20 Untested gold anomalies emerging adjacent to the process plant infrastructure GROWTH 1. Refer ASX announcement (ASX:POS) "Gold Potential Builds at Black Swan" dated 24 September 2024 Platform for regional consolidation • Non-producer access to third party gold processing in the Goldfields is becoming increasingly difficult • Conversion of a 2.2Mtpa processing facility to gold production has potential to unlock stranded gold resources in the region • HRZ will assess accretive opportunities to add to mine life: • Partnership opportunities – joint venture, toll milling, and ore purchase arrangements • Acquisitions – asset purchases or corporate transactions 21 Several deposits of gold deposits in region are without a clear processing solution GROWTH An Emerging Standalone Gold Producer 22 Studies demonstrate a robust initial five year mine plan Clear and deliverable business plan to become to a new standalone WA gold miner Combination of 1.9Moz of Mineral Resource1 and processing infrastructure Fully funded with an enhanced share register Credible, low capex plan to standalone gold production by mid-2027 Ramp up of production aligned with strong gold price environment Highly experienced Board and Management with strong regional expertise Attractive current valuation relative to peers, with growth and re-rating potential 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 Contact Us Grant Haywood Managing Director and CEO +61 (08) 9386 9534 admin@horizonminerals.com.au horizonminerals.com.au PO Box 1064 West Perth WA 6872 23 Mineral Resource1 Estimate 24 1. Refer ASX Announcement “Gold Mineral Resources Update” dated 13 February 2026 Gold projects . Total Inferred Indicated Measured Project koz Au (g/t) kt koz Au (g/t) kt koz Au (g/t) kt koz Au (g/t) kt 23 1.20 596 23 1.20 596 Baden Powell 398 1.27 9,787 103 1.26 2,549 266 1.28 6,485 29 1.21 753 Boorara 298 1.90 4,860 205 1.86 3,430 93 2.02 1,430 Burbanks OP 168 4.38 1,193 151 4.39 1,070 17 4.26 122 Burbanks UG 32 4.29 232 3 2.28 47 29 4.80 185 Cannon 25 1.20 659 25 1.20 659 Capricorn 64 0.86 2,321 64 0.86 2,321 Coote 75 1.28 1,822 4 1.08 123 70 1.29 1,699 Crake 31 1.81 527 3 1.71 52 28 1.82 476 Golden Ridge 79 0.97 2,532 37 1.14 1,021 42 0.86 1,511 Golden Ridge North 28 1.24 693 28 1.24 693 Gordons Dam 132 2.22 1,852 51 1.85 856 81 2.54 996 Jacques/Peyes 33 1.11 919 33 1.11 919 Monument 45 2.36 595 13 2.10 185 33 2.48 410 Phillips Find OP 0 2.27 3 0 2.27 3 Phillips Find UG 18 1.99 287 6 2.05 92 12 1.96 194 Rosehill (OP) 75 4.60 507 28 4.78 181 47 4.49 326 Rosehill (UG) 13 1.21 330 11 1.25 267 2 1.02 64 Pinner 149 1.96 2,359 33 1.72 591 116 2.04 1,768 Kalpini 63 4.57 429 12 3.02 123 51 5.19 305 Pennys Find 128 2.20 1,811 64 2.50 801 64 1.96 1,009 Teal 1,878 1.70 34,315 892 1.68 16,489 944 1.74 16,879 41 1.36 947 Grand Total Tonnages are dry metric tonnes. Minor discrepancies may occur due to rounding. Ore Reserve1 Estimate 25 1 Refer ASX announcement “Gold Ore Reserve Update” dated 17 February 2026 Gold projects HORIZON MINERALS GOLD ORE RESERVE SUMMARY Total Probable Proven Cutoff Project Ounces Au g/t kt Ounces Au g/t kt Ounces Au g/t kt Au ppm 81,272 1.19 2130 65,357 1.21 1680 15,915 1.1 450 0.5 Boorara 17,700 4.1 135 17,700 4.1 135 1 Cannon UG 33,400 3.2 328 33,400 3.2 328 1.5 Pennys Find 47,203 1.69 867 47,203 1.69 867 0.5 Kalpini 34,405 1.23 870 34,405 1.23 870 0.5 Crake 213,980 1.54 4,330 198,065 4,330 15,915 1.1 450 TOTAL Mineral Resource1 Estimate 26 1. Refer ASX Announcement “Group Mineral Resources Statement – Amended” dated 1 August 2024 Nimbus silver-zinc project Nimbus All Lodes (bottom cuts 12 g/t Ag, 0.5% Zn, 0.3g/t Au) Zn (kt) Au (kt) Ag (Moz) Zn (%) Au (g/t) Ag (g/t) Mt Category 45 10 11.9 1.2 0.09 102 3.62 Measured Resource 30 21 4.9 1.0 0.21 48 3.18 Indicated Resource 29 46 3.4 0.5 0.27 20 5.28 Inferred Resource 104 77 20.2 0.9 0.20 52 12.08 Total Resource Nimbus high grade silver zinc resource (500g/t Ag bottom cut and 2,800g/t Ag top cut) Zn (kt) Ag (Moz) Zn (%) Ag (g/t) Mt Category - - - - - Measured Resource 22 4.2 12.8 762 0.17 Indicated Resource 11 2.2 13.0 797 0.09 Inferred Resource 33 6.4 12.8 774 0.26 Total Resource Mineral Resource & Ore Reserve disclosure Horizon Gold Mineral Resources The information in this report that relates to Horizon’s Mineral Resources estimates is extracted from and was originally reported in Horizon’s ASX announcements: 27 Confirmations Confirmation Source Year Project “Gold resources increase to 1.24moz”, dated 28 September 2022 2022 Baden Powell “Gold Mineral Resources Update”, dated 13 February 2026 2026 Boorara “Group Mineral Resource Statement – Amended”, dated 1 August 2024 2024 Burbanks OP “Group Mineral Resource Statement – Amended”, dated 1 August 2024 2024 Burbanks UG “Investor Presentation June 2022”, dated 31 May 2022 2022 Cannon “Gold resources increase to 1.24moz”, dated 28 September 2022 2022 Capricorn “Gold Mineral Resources Update”, dated 13 February 2026 2026 Coote “Gold Mineral Resources Update”, dated 13 February 2026 2026 Crake “High Grade Drill results and Resource Update for Rose Hill”, dated 4 February 2020 2020 Golden Ridge “Gold Mineral Resources Update”, dated 13 Februa