Announcement PDF Definitive Feasibility Study Presentation Gum Creek Gold Project July 2026 ASX: HRN horizongold.com.au 1 Important Information and Disclaimer 2 Disclaimer This presentation has been prepared by Horizon Gold Limited (“HRN”, “Horizon” or “Company”). This presentation contains general and background information about Horizon’s activities current as at the date of the presentation and should not be considered to be comprehensive or to comprise all the information that an investor should consider when making an investment decision. The information in this presentation should be read in conjunction with Horizon's other periodic and continuous disclosure announcements lodged with ASX, available at www.asx.com.au. Certain information in this document has been derived from third parties and though Horizon has no reason to believe that it is not accurate, reliable or complete, it has not been independently audited or verified by Horizon. To the extent permitted by law, Horizon and its officers, employees, related bodies corporate and agents disclaim all liability, direct, indirect or consequential (and whether or not arising out of the negligence, default or lack of care of Horizon and/or any of its agents) for any loss or damage suffered by a recipient or other persons arising out of, or in connection with, any use or reliance on this presentation or information. This presentation is not an offer, invitation, solicitation or recommendation with respect to the subscription for, purchase or sale of any security, and neither this presentation nor anything in it shall form the basis for any contract or commitment whatsoever. This presentation is not a prospectus or other disclosure document under the Corporations Act and will not be lodged with ASIC. This presentation is the property of Horizon and must not without the written permission of Horizon be reproduced, stored in a retrieval system or transmitted in any form or by any method (including electronic) for any purpose, except as expressly permitted by the Board of Directors of Horizon. This presentation is not financial product advice, investment advice, legal, tax or other advice or a recommendation to acquire, hold or sell Horizon securities. This presentation has been prepared without taking into account the objectives, financial situation or needs of any particular recipient. Notwithstanding the material in this presentation, the recipients should consider that any investment in Horizon is highly speculative and should consult their professional advisors (whether scientific, business, financial or legal) before deciding whether to make any investment in Horizon. Before making an investment decision prospective investors should consider the appropriateness of the information having regard to their own objectives, financial situation and needs, and seek legal, taxation and financial advice appropriate to their jurisdiction and circumstances. Horizon is not licensed to provide financial product advice in respect of its securities or any other financial products. Cooling off rights do not apply to the acquisition of Horizon securities. Each recipient must make its own independent assessment of Horizon before acquiring any securities in the Company. The information in this presentation that relates to Horizon's production targets and financial forecasts for the Gum Creek Gold Project is extracted from Horizon’s ASX announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development” dated 22 July 2026 and which is available at www.asx.com.au. Horizon believes it has a reasonable basis for making the forward-looking statements in this presentation, including with respect to all production targets and financial forecasts, based on the information contained in that announcement. Horizon confirms that it is not aware of any new information or data that materially affects the production targets, or the financial forecast information, contained in that announcement of the Company’s Definitive Feasibility Study for the Gum Creek Gold Project ("DFS”) and confirms that all material assumptions underpinning the production targets and the financial forecast information in that announcement continue to apply and have not materially changed. Horizon confirms that it is not aware of any new information or data that materially affects the information included in Horizon announcement on 22 July 2026 and, in the case of estimates of Ore Reserves and Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant ASX announcements continue to apply and have not materially changed. All amounts are in Australian dollars unless stated otherwise. Important Information and Disclaimer 3 Production Target The Production Target (and forecast financial information derived from the Production Target) referred to in this presentation is underpinned by 76% Probable Ore Reserves, 18% Indicated Resource ounces outside of the Ore Reserves and 6% Inferred Resources ounces. The first 5 years of the Production Target is underpinned by approximately 97% Probable Ore Reserve ounces, and approximately 3% Inferred Mineral Resource ounces. 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 (or the forecast financial information) will be realised. The Company believes it has a reasonable basis to disclose a production target that includes some Inferred Mineral Resources, for example as the Inferred Resources are not a determining factor in the viability of the Gum Creek Gold Project. Importantly, the feasibility of the development scenario outlined in the DFS does not hinge on the current Inferred Mineral Resources. Also, the Inferred Mineral Resources do not feature as a significant proportion early in the mine plan. To achieve the range of outcomes anticipated in the DFS, an estimated A$350m of initial capital will be required. The Company believes the assumptions made are reasonable to enable it to obtain the requisite funding required to develop the Project, as detailed in the ASX announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development” dated 22 July 2026. Reference should also be made to other disclaimers included in that announcement. Investors should note that there is no certainty that Horizon will be able to raise the amount of funding when needed (nor any certainty as to the form such capital raising may take, such as equity, debt, hybrid and/or other capital raising, nor whether the Production Target, financial forecasts or other forward-looking information in this announcement may be achieved). It is also possible that such funding may only be available on terms that may be dilutive to or otherwise affect the value of Horizon’s existing shares. Forward-looking Statements This Presentation contains “forward-looking statements” and “forward-looking information”, including statements and forecasts which include, without limitation, statements with respect to the DFS, Horizon’s business strategy, plan, development, objectives, performance, outlook, growth, cash flow, projections, targets and expectations, production targets, financial forecasts, mineral resources, ore reserves, results of exploration and related expenses. Often, but not always, forward-looking information can be identified by the use of words such as “plans”, “expects”, “is expected”, “is expecting”, “budget”, “outlook”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates”, or “believes”, or variations (including negative variations) of such words and phrases, or state that certain actions, events or results “may”, “could”, “would”, “might”, or “will” be taken, occur or be achieved. Such information is based on assumptions and judgments of management regarding future events and results. The purpose of forward-looking information is to provide the audience with information about management’s expectations and plans. Readers are cautioned that forward-looking information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Horizon and/or its subsidiaries to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information. Forward-looking information and statements are based on the reasonable assumptions, estimates, analysis and opinions of management made in light of its experience and its perception of trends, current conditions and expected developments, as well as other factors that management believes to be relevant and reasonable in the circumstances at the date such statements are made, but which may prove to be incorrect. Horizon believes that the assumptions and expectations reflected in such forward-looking statements and information are reasonable. Readers are cautioned that the foregoing list is not exhaustive of all factors and assumptions which may have been used. Important Information and Disclaimer 4 Forward-looking Statements (Continued) No representation, warranty or assurance, express or implied, is given or made in relation to any forward-looking statement. In particular no representation, warranty or assumption, express or implied, is given in relation to any underlying assumption or that any forward-looking statement will be achieved. Actual and future events may vary materially from the forward-looking statements and the assumptions on which the forward-looking statements were based, because events and actual circumstances frequently do not occur as forecast and future results are subject to known and unknown risks including but not limited to changes in market conditions and regulations, general business, economic, competitive, political and social uncertainties; the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans continue to be refined; future prices and demand for gold; possible variations of ore grade or recovery rates; failure of plant, equipment or processes to operate as anticipated; accident, labour disputes and other risks of the mining industry; and delays in obtaining governmental approvals or financing or in the completion of development or construction activities. This list and the further risk factors detailed in Horizon’s announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development” dated 22 July 2026, are not exhaustive of the factors that may affect or impact forward-looking information. These and other factors should be considered carefully. Given these uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements, and should rely on their own independent enquiries, investigations and advice regarding information contained in this presentation. Any reliance by a reader on the information contained in this presentation is wholly at the reader’s own risk. The Company and its related bodies corporate and affiliates and their respective directors, officers, employees, agents and advisors disclaim any liability for any direct, indirect or consequential loss or damages suffered by a person or persons as a result of relying on any statement in, or omission from, this presentation. To the maximum extent permitted by law or any relevant listing rules of the ASX, the Company and its related bodies corporate and affiliates and their respective directors, officers, employees, agents, advisors and intermediaries disclaim any obligation or undertaking to disseminate any updates or revisions to the information in this presentation to reflect any change in expectations in relation to any forward looking statements or any such change in events, conditions or circumstances on which any such statements were based. No New Information or Data This Presentation contains references to Exploration Results, Metallurgical Results and Mineral Resource estimates, all of which have been cross referenced to previous ASX announcements, including Mineral Resource Estimates in the Company announcements titled “Gum Creek Project Gold Resource Update” dated 4 November 2025, “19% Increase in Gold Resources at Gum Creek Project” dated 15 May 2023 and “32% Increase in Resources at Gum Creek Gold Project” dated 25 July 2022 (all available at www.asx.com.au). The Competent Persons for the announced Mineral Resources were Mr Shaun Searle (2025), Mr Grant Louw (2023) and Mr Richard Maddocks (2022). The Company confirms that it is not aware of any additional information or data that materially affects the information included in the relevant ASX announcements and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the relevant ASX announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the findings of the Competent Persons are presented have not been materially modified from the original ASX announcements. Important Information and Disclaimer 5 No New Information or Data (Continued) This Presentation contains references to Ore Reserves extracted from the Company’s previous announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development” dated 22 July 2026, which is available at www.asx.com.au. The Competent Person for the announced Ore Reserves was Mr Anthony Keers. The Company confirms that it is not aware of any additional information or data that materially affects the information included in the relevant announcements and, in the case of estimates of the Ore Reserves, that all material assumptions and technical parameters underpinning the estimates in the relevant ASX announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the findings of the Competent Persons are presented have not been materially modified from the original ASX announcements. Definitive-Feasibility Study The information in this presentation that relates to the Production Target and Definitive Feasibility Study for the Gum Creek Project was reported by Horizon in accordance with ASX Listing Rules and the JORC Code (2012 edition) in the announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development” dated 22 July 2026, and for which the consent of the Competent Persons, Mr Anthony Keers and Mr Terry Weston, was obtained. A copy of that announcement is available at www.asx.com.au. Mr Keers is Managing Director of Auralia Mining Consulting Pty Ltd and Mr Weston is a Metallurgist and sole trader. Horizon confirms it is not aware of any new information or data that materially affects the information included in that ASX announcement and that all material assumptions and technical parameters underpinning the production target, and the related forecast financial information derived from the production target in that ASX announcement continue to apply and have not materially changed. Horizon confirms that the form and context in which the Competent Person's findings are presented have not been materially modified from that ASX announcement. Non-IFRS Financial Measures Horizon uses certain financial measures to assess how the Gum Creek Gold Project is projected to perform. These financial measures, such as net present value (NPV) and internal rate of return (IRR) (collectively referred to as “Non-IFRS Financial Measures”) are not recognised under International Financial Reporting Standards (“IFRS”). Horizon considers the Non-IFRS Financial Measures provide useful information about the estimated financial forecasts derived from the DFS, however, they should not be considered in isolation or as a substitute for measures of performance or cash flow prepared in accordance with IFRS. Since the financial forecasts and economic discussion in this presentation are not based on IFRS, they do not have standardised definitions and the way these measures have been derived may not be comparable to similarly titled measures used by other companies. Investors should therefore not place undue reliance on these Non-IFRS Financial Measures. This presentation has been authorised for release to the market by the Horizon Board. Gum Creek Gold Project 6 Large-scale, free milling open pit restart  25.1 Mt at 1.19 g/t Au for 962 Koz (mined oz)  880koz recovered over 10 years  Production target underpinned predominately by Ore Reserve Estimate of 18.2Mt at 1.24g/t Au for 728koz contained Open Pit Mining DFS  Shallow, free milling open pit mining for an initial Life of Mine (LOM) of 10 years  98kozpa for the first five years Underground mining & sulphide upside  Free milling underground resources of 416koz at 3.6g/t Au1 currently sit outside the DFS mine plan  Wilsons sulphide underground resource of 400koz at 4.3g/t Au1 currently sits outside the DFS mine plan 80km-long underexplored greenstone belt  Currently drilling at Kingfisher – historic intersections including 15m @ 28.5g/t Au, 10m @ 8.9g/t Au2  Currently drilling at Swan – historic intersections including 7.4m @ 60.8g/t Au, 10.7m @ 30.1g/t Au3 1 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Project Resource Update" dated 4 November 2025 2 Refer to Horizon Gold Limited ASX announcement titled “Diamond drilling returns 15m @ 28.5g/t Au from Kingfisher" dated 12 December 2022 3 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Geological Review “ dated 15 February 2021 Open Pit DFS Highlights 7 Open Pit Production Target of 25.1 Mt at 1.19 g/t Au for 962 Koz 880koz produced over 10 years (98kozpa for first five years) LOM free cash flow of A$1,854m NPV5 of A$1,307m & IRR of 53.1% Strong margin, low All-In Sustaining Costs (AISC) of A$2,995/oz Pre-production capex of A$350m (incl. contingency & commissioning) First gold production scheduled for H2 2028 Key Study Outcomes 8 Capital Costs Pre-production Capital A$m 350.4 Sustaining Capital A$m 62.9 Operating Costs Mining Costs A$/oz 1,715 Processing Costs A$/oz 730 Site G&A A$/oz 258 C1 Cash Cost A$/oz 2,702 Royalty Payments A$/oz 221 Sustaining Capital A$/oz 71 Total AISC A$/oz 2,995 Key Financial Forecasts and Assumptions Gold Price A$/oz 5,500 Discount Rate % 5 Project Valuation EBITDA A$m 2,268 Free Cash Flow (undiscounted and pre-tax) A$m 1,854 Project NPV5 (pre-tax) A$m 1,307 Project NPV5 (post-tax) A$m 894 Project IRR (pre-tax) % 53.1 Project IRR (post-tax) % 41.7 Payback Period (pre-tax) Months 23 NPV5 / Pre-pro. Cap. (pre-tax) ratio 3.7x Key Physical Targets Life of Mine years 10 Plant Throughput Mtpa 2.4 Mine Production Strip Ratio x 9.6 Total Material Moved Mt 241.0 Processing Physicals Material Processed Mt 25.1 Average Feed Grade g/t 1.19 Au Ounces Contained koz 962 Overall Plant Recovery % 91.5 Gold Production Target (Average) kozpa 88 Gold Production Target (LOM) koz 880 9 Financials & Sensitivity Base Case Key Financial Indicator Unit A$4,000/oz A$4,500/oz A$5,000/oz A$5,500/oz A$6,000/oz A$6,500/oz A$7,000/oz NPV5 (Pre-tax) A$m 335 659 983 1,307 1,631 1,955 2,279 IRR (Pre-tax) % 19.5 31.4 42.5 53.1 63.4 73.4 83.1 Payback (Pre-tax) Years 4.17 3.42 2.50 1.92 1.67 1.50 1.42 LOM Free Cash Flow (Pre-tax) A$m 569 998 1,426 1,854 2,283 2,711 3,139 NPV5 (Post-tax) A$m 210 440 667 894 1,121 1,347 1,574 IRR (Post-tax) % 15.1 24.7 33.5 41.7 49.7 57.3 64.8 Payback (Post-tax) Years 4.58 3.75 3.00 2.33 2.00 1.75 1.58 LOM Free Cash Flow (Post-tax) A$m 395 698 998 1,298 1,598 1,898 2,197 Open Pit Mine Plan 10 A technically robust open pit mine plan Average annual gold production of 98kozpa over the first five years, with a life of mine production target of 880koz recovered over a 10-year mine life based on the following mining metrics: Open Pit Production Target: 25.1 Mt at 1.19g/t Au for 962 koz (mined oz)  880koz recovered oz  94% (905 koz) of the Open Pit Production Target is classified as Indicated Resource or Reserve  78% (753 koz) of the Open Pit Production Target is from two mining areas:  Gidgee Shear Zone: 12.9 Mt at 1.34g/t Au for 559 koz1  Howards: 6.2Mt at 0.97g/t Au for 194 koz1  Remaining 22% of the Production Target from within 48 km of the proposed Gum Creek mill Open Pit Ore Reserve Estimate: 18.2 Mt at 1.24g/t Au for 728 koz  Open Pit Ore Reserve Estimate is constrained to a A$4,500/oz optimised pit shell  Open Pit Ore Reserve Estimate (oz) includes:  Oxide (25.2%)  Transitional (22.1%)  Fresh (52.7%) 1 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Project Resource Update" dated 4 November 2025 11 Mineral Resources & Maiden Ore Reserves Classification Cut-off (g/t)1 Tonnes (Mt) Grade (g/t) Au Metal (koz) Mineral Resources Indicated Various1 26.7 1.9 1,629 Inferred Various1 11.3 1.86 672 Total 40 1.89 2,302 Open Pit Ore Reserves Probable 0.3 18.2 1.24 728 Total 18.2 1.24 728 Open Pit Production Target Indicated 0.3 23.2 1.21 905 Inferred 0.3 1.9 0.94 57 Total 25.1 1.19 962 1 Refer to Table 1 (Slide 25) for individual deposit cutoffs, Mineral Resources reported are inclusive of Open Pit Ore Reserves, and the Production Target is underpinned by the Ore Reserve and Mineral Resource estimates 12  +7km long mineralised system hosting 1.05Moz at 2.17g/t Au1 adjacent to the proposed processing plant  The Gidgee Shear Zone contributes 559koz at 1.34g/t Au2 to the Open Pit Mining DFS production profile  Free milling underground resources of 416koz at 3.6g/t Au1 at Swan, Swift and Kingfisher currently sit outside the DFS mine plan  Current drilling aimed at expanding the open cut and underground gold resources (majority of drilling <100m) Gidgee Mining Area 3D view of Main Gidgee Mining Area looking down to the northeast showing A$4,500 optimised pit shells (blue), existing haul roads (red) and MRE block models (coloured by Au g/t) 1 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Project Resource Update" dated 4 November 2025 2 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Open Pit DFS Confirms Pathway for WA’s Next Major Gold Mine Development" dated 22 July 2026 Conventional Processing 13 Simple Free Milling Metallurgy The DFS process design incorporates conventional three stage crushing, single stage ball milling, gravity gold recovery, Carbon in Leach (CIL), elution & smelting with the following metrics:  Total Gold Recovery: 91.5%  Gravity Gold Recovery: 29.8%  Bond Ball Work Index: 18.3 KWh/t  Grinding Size P80 : 75 µm Opportunity to expand to 3.0Mtpa nameplate capacity  The crushing circuit design incorporates the future installation of larger primary and secondary crushers  The milling circuit design has reserved the ground footprint for a future second mill, and additional leach and adsorption tanks Approvals on track for Q2 2027 14 Simple Permitting Pathway on granted Mining Leases  Extensive Flora, Fauna & Heritage Surveys completed  All priority deposits lie on granted Mining Leases  The project has an approved Mining Proposal to recommence mining and an associated clearing permit valid until 2029  The approved clearing permit allows the clearing of 100 hectares in the central infrastructure area (near Swan-Swift) and Wilsons  Outstanding approvals for the DFS are on track to allow for a Final Investment Decision (FID) in Q2 2027 Pathway to Production 15 Note that timing may vary 16 Swan Underground Upside A large free milling high-grade underground resource at Swan currently sits below the DFS Pit design  Swan Underground MRE currently stands at 1.73Mt @ 4.19g/t Au for 233,700 ounces (57% Indicated)1  Significant amount of unmined high- grade shoots near existing underground mining infrastructure  Currently drilling high grade extensions of historic intersections including2:  7.4m @ 60.8g/t Au from 48m  10.7m @ 30.1g/t Au from 33m  8.1m @ 19.2g/t Au from 107m  6.3m @ 19.1g/t Au from 229m  10m @ 15.8g/t Au from 297m  11.8m @ 5.6g/t Au from 127m 1 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Project Resource Update” dated 4 November 2025 for further information 2 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Review” dated 15 February 2021 & “Significant RC Drilling Results from Swan, Swift and Eagle Targets” dated 16 June 2021 for drilling intercept information. 17 Kingfisher Underground Upside A significant free-milling high-grade resource at Kingfisher currently sits outside the DFS Pit Design  Kingfisher Underground MRE currently stands at 1.04Mt @ 3.38g/t Au for 113,500 ounces1  3.5 km south of the Gidgee Mill  Historical Production:  Open Pit: 265koz at 4.0g/t Au  Underground: 27koz at 14.1g/t Au  Currently drilling at depth and along strike of existing open pit & underground workings  1.2 km strike length with mineralisation remaining open along strike and at depth  Exploration below the DFS pit design has returned exceptional results, including 15m @ 28.5g/t Au from 346m2 and 4m @ 11.4g/t Au from 431m3 1 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Project Resource Update” dated 4 November 2025 for further information 2 Refer to Horizon Gold Limited ASX announcement titled “Diamond drilling returns 15m @ 28.5g/t Au from Kingfisher" dated 12 December 2022 3 Refer to Horizon Gold Limited ASX Announcement titled “High-grade intercepts returned from Kingfisher Diamond Drilling” dated 23 February 2026 18 Wilsons Underground Upside A large, high-grade underground sulphide resource at Wilsons currently sits outside the DFS mine plan  Wilsons Underground MRE stands at 2.9Mt at 4.31g/t Au for 400koz (97% Indicated)1  Total sulphide material in the Gum Creek MRE comprises 9.3Mt at 2.3g/t Au for 698koz 1 and currently sits outside the DFS mine plan  Metallurgical test work has delivered strong gold recoveries of 87-90% using conventional processing routes for refractory mineralisation  Studies ongoing to assess the potential of the Gum Creek refractory mineralisation 1 Refer to Horizon Gold Limited ASX Announcement titled “Gum Creek Project Resource Update” dated 4 November 2025. Refer to Panoramic Resources Limited ASX Announcements titled “Corporate Strategy and positive gold results” dated 27 June 2016 for metallurgy information & “Quarterly Report for the period ending 30 September 2013” dated 21 October 2013 for cross section info. 19 Upside Opportunities Optionality to consider low capex early starter options Active drilling aimed at expanding free milling underground resources of 416koz at 3.6g/t Au1 Open Pit DFS excludes Wilsons underground resource of 400koz at 4.3g/t Au1 80km long greenstone belt with over 37 deposits open along strike and at depth Plant expandability to 3.0Mtpa nameplate free milling capacity Regional consolidation of the Gum Creek greenstone belt and broader region 1 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Project Resource Update" dated 4 November 2025 Investment Highlights 20 Large-scale, free milling open pit restart  Current mineral resource of 37.97Mt at 1.89g/t Au for 2.30Moz (71% indicated)1 on granted mining leases  Maiden open pit ore reserve of 18.2Mt at 1.24g/t Au for 728koz and open pit production target of 25.1Mt at 1.19g/t Au for 962koz (mined oz) / 880koz recovered oz Material exploration upside targeting higher grade intersections  Significantly underexplored 80km-long project strike, focused on open pittable and high-grade underground resources  Drilling at Kingfisher – extensive high grade intersections below the DFS pit including 15m @ 28.5g/t Au, 4m @ 11.4g/t Au2  Drilling at Swan – high grade intersections below the DFS pit including 7.4m @ 60.8g/t Au, 10.7m @ 30.1g/t Au, 8.1m @ 19.2g/t Au3 Approvals on track for Q2 2027  Well advanced on flora, fauna and heritage surveys to allow a Final Investment Decision (FID) in Q2 2027  Existing permits allow for low capex early starter options if necessary Underground mining & sulphide upside  Free milling underground resources of 3.6Mt at 3.6g/t Au for 416koz1 currently sit outside the open pit DFS mine plan  Wilsons underground resource of 2.9Mt at 4.31g/t Au for 400koz1 & total sulphide resources of 9.3Mt at 2.3g/t Au for 698koz1 currently sit outside the DFS mine plan Experienced Board and Technical Team  Led by seasoned mining executives with deep exploration, development, and corporate experience 1 Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Project Resource Update” dated 4 November 2025 2. Refer to Horizon Gold Limited ASX announcement “Diamond drilling returns 15m @ 28.5g/t Au from Kingfisher" dated 12 Dec 2022 & ASX announcement “High-grade intercepts returned from Kingfisher Diamond Drilling” dated 23 Feb 2026 3. Refer to Horizon Gold Limited ASX announcement titled “Gum Creek Geological Review “ dated 15 February 2021 CONTACT US Scott Williamson Managing Director and CEO info@horizongold.com.au ASX: HRN horizongold.com.au 21 Board and Management Peter Sullivan Non-Executive Chairman • Engineer with an MBA and 30+ years' experience across project engineering, corporate finance, investment banking, and public company directorships in resource development • Non-Executive Chairman of Alliance Nickel Limited Scott Williamson Managing Director and CEO • Experienced Mining Engineer with a background in operations management with global experience in a variety of commodities, including gold and base metals • Leadership has been crucial in the advancement of exploration, mining practices and stakeholder engagement 22 Directors Key Management Peter Venn Non-Executive Director • Geologist with 32+ years' resources