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Perseverance Mine, Tarcoola Project South Australia’s 2.25 Moz Gold Developer 15 October 2026 | Australian Gold Conference ASX:BGD OTC:BGDFFFRA:BGD3
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Please refer to appendices for details of all references contained throughout this presentation. Disclaimer This document has been approved by the Board of Barton Gold Holdings Limited (ACN 633 442 618) (together with its affiliates, “Barton” or the “Company”) and has been prepared for the exclusive use of the party to whom Barton delivers this document (the “Recipient”). The information contained in this document has been prepared in good faith by Barton. However, no representation or warranty, either express or implied, is made as to the accuracy, completeness, adequacy or reliability of the information contained in this document. This document contains only a synopsis of more detailed information in relation to the matters described herein and accordingly no reliance may be placed for any purpose whatsoever on the sufficiency or completeness of such information as presented herein. This document should not be regarded by the Recipient as a substitute for the exercise of its own judgment and the Recipient should conduct its own due diligence in respect of the contents of this document. To the maximum extent permitted by law Barton, its directors, officers, employees, advisers, agents and related bodies corporate (“Barton Gold Group”) disclaim any or all liability for any loss or damage which may be suffered by any person as a result of the use of, or reliance upon, anything contained within or omitted from this document (regardless of whether the loss or damage arises in connection with any negligence, default, lack of care or misrepresentation by the Barton Gold Group or any other cause in connection with the provision of this document or the purported reliance on this document or the information contained in it). To the extent that any provisions in this Important Notices section may be construed as being a contravention of any law of the State or the Commonwealth, such provisions should be read down, severed or both as the case may require and the remaining provisions shall continue to have full force and effect. This document has been prepared solely for informational purposes. This document does not constitute a prospectus and is not to be construed as a solicitation or an offer to buy or sell any securities, or related financial instruments, in any jurisdiction. The Recipient should not construe the contents of this document as legal, tax, accounting or investment advice or a recommendation. This document does not purport to contain all of the information a Recipient would require to make an informed decision whether to invest in the Company. Specifically, this document does not purport to contain all the information that investors and their professional advisers would reasonably require to make an informed assessment of the Company’s assets and liabilities, financial position and performance, profits, losses and prospects. The Recipient must not rely on the information set out in this document and must make its own independent assessment and consult its own legal counsel, tax and financial advisors concerning any matter described herein. This document does not purport to be all-inclusive or to contain all of the information that the Recipient may require. No investment, divestment or other financial decisions or actions should be based solely on the information in this document. The distribution of this document may be restricted by law in certain jurisdictions. This document must be treated as strictly confidential and must not be copied, reproduced, distributed, quoted, referred to or distributed to others at any time, in whole or in part, without the prior written consent of Barton. Cautionary Statement Regarding Forward-Looking Information The figures, valuations, forecasts, estimates, opinions and projections contained herein involve elements of subjective judgment and analysis and assumption. Barton does not accept any liability in relation to any such matters, or to inform the Recipient of any matter arising or coming to the company’s notice after the date of this document which may affect any matter referred to herein. Any opinions expressed in this material are subject to change without notice, including as a result of using different assumptions and criteria. This document may contain forward-looking statements. Forward-looking statements are often, but not always, identified by the use of words such as “seek”, “anticipate”, “believe”, “plan”, “expect”, “target” and “intend” and statements than an event or result “may”, “will”, “should”, “would”, “could”, or “might” occur or be achieved and other similar expressions. Forward-looking information is subject to business, legal and economic risks and uncertainties and other factors that could cause actual results to differ materially from those contained in forward-looking statements. Such factors include, among other things, risks relating to property interests, the global economic climate, commodity prices, sovereign and legal risks, and environmental risks. Forward-looking statements are based upon estimates and opinions at the date the statements are made. Barton undertakes no obligation to update these forward-looking statements for events or circumstances that occur subsequent to such dates or to update or keep current any of the information contained herein. Any estimates or projections as to events that may occur in the future (including projections of revenue, expense, net income and performance) are based upon the best judgment of Barton from information available as of the date of this document. There is no guarantee that any of these estimates or projections will be achieved. Actual results will vary from the projections and such variations may be material. Nothing contained herein is, or shall be relied upon as, a promise or representation as to the past or future. Any reliance placed by the Recipient on this document, or on any forward-looking statement contained in or referred to in this document will be solely at the Recipient’s own risk. The Barton Gold Group expressly disclaims any and all liability relating or resulting from the use of all or any part of this document or any of the information contained herein. Date and Currency This document is dated 15 October 2026 (“Preparation Date”) and is based on the Company’s prospectus dated 14 May 2021 (“Prospectus”) for an offer to acquire fully paid ordinary shares (“Shares”) in the capital of the Company (“Offer”), updated for the results of the Offer, and Barton ASX announcements as from the date of the Prospectus. A copy of the Prospectus is available for download at www.bartongold.com.au or www.asx.com.au. The delivery of this document at any time after the Preparation Date does not imply the information contained in it is correct at any time after the Preparation Date. Delivery of this document does not imply, and is not to be relied upon as a representation or warranty that: (i) there has been no change since the Preparation Date in the business, operations, financial condition, prospects, creditworthiness, status or affairs of the Company or any of the Company's related bodies corporate or affiliates; or (ii) the information contained in this document remains correct and not misleading at any time after the Preparation Date. The information in this document should be considered dynamic and may change over time. Subject to its obligations at law, Barton has no responsibility or obligation to update this document or inform the recipient of any matter arising or coming to their notice after the Preparation Date which may affect any matter referred to in the document. All dollar values expressed in this document are Australian dollars ($, A$, or AUD). Important Notices 2
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SA’s Leading Developer Leading the re-emergence of central South Australian gold • Jurisdiction matters: Tier 1 geology, infrastructure, labour and rule of law • Strategy to consolidate region and develop large-scale production • Ownership of the region’s only gold mill provides strategic leverage 3 Dual hub-and-spoke model → long-term scale & leadership • Hub 1: Transition Central Gawler Mill (CGM) → operations • Hub 2: Build Tunkillia Project → add ~120kozpa Au • Regional assets: Multiple sources of blending feed Accelerating value on multiple fronts • Hub 1: Resource upgrades & DFS underway • Hub 2: Resource upgrades & PFS underway • M&A: Advancing recent Wudinna Gold Project acquisition • Exploration: Advancing new 17,600 g/t Tolmer silver discovery Prominent Hill Olympic Dam CarrapateenaTunkillia Tarcoola / Tolmer Challenger / CGM IOCG (Cu-Au)Gold (Au-Ag) Wudinna Australian gold and silver – the right metals, the right place, the right time
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Board & Management Insitutional & Corporate HNW & Family Office General Retail Capital Structure ($AUD) Shares on issue (1) 271 million Market Cap ($0.89 / share) (2) $241 million Debt Nil Cash (3) $32 million Enterprise Value (4) $209 million Options on issue (1) 14.1 million 52 Week Range (Low - High) (5) $0.69 – 1.45 Top 20 ~58% Top 50 ~65% Share Distribution (6) Institutional & Corporate shareholders include: Strong funding position with register consolidating around aligned management and reliable progress 4 ▪ Fully funded to deliver key value-add milestones ▪ Closely held by leading institutional gold investors ▪ Low-dilution track record with history of material internal cash generation and low options on issue (7) ▪ Member of S&P ASX All Ordinaries Index, Australia’s equivalent of the S&P 500 (8) 19% 43% 14% 24%
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Experienced Leadership Strong SA and gold pedigree Ken Williams | Non-Executive Chair • ~30 years in mining, aviation & financial services • Former CFO Normandy Mining (Newmont Australia) Board of Directors Christian Paech | Non-Executive Director • ~30 years in private & public legal practice • Former Santos Ltd General Counsel & CoSec Graham Arvidson | Non-Executive Director • ~20 years in mechanical engineering & CPMet • Study, design & operation of multiple gold assets Senior Management Alexander Scanlon | Managing Director & CEO • ~20 years in principal investments & resources • Founder of Barton Gold, former MD PARQ Capital Marc Twining | General Manager, Exploration • ~25 years in resources exploration & development • Former Normandy / Newmont exploration geologist Nicola Frazer | Chief Financial Officer • ~25 years in South Australian mining & oil / gas • Former Normandy / Newmont & Beach Energy corporate Kim Russell | General Manager, Development • ~30 years development / operations of large-scale mines • Former Rex Minerals, Harmony Gold & Pilbara Minerals 5 Jade Cook | Company Secretary • ~10 years’ experience in Company Secretarial roles • Chartered Secretary assisting multiple ASX entities
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District Leader Emerging district-scale player: hub-and-spoke model for long-term gold leadership in central Gawler Craton Hub 2: New Tunkillia development • New ~5Mtpa pit + mill → crystallise dual hub strategy for large-scale regional production • OSS: 120kozpa Au / 250kozpa Ag production with ~2x capital payback in first year (3) Regional assets: Leverage infrastructure • Wudinna: 279koz Au on roads to CGM + Tunkillia • Tarcoola: Existing ML with 20koz Au open pit • Tolmer: new shallow high-grade Ag-Au discovery • Others: M&A, ore purchases, toll milling, etc Hub 1: Restart CGM operations • Existing fully-permitted mill and infrastructure with MLs & Native Title Mining Agreements (1) • 313koz Au Resources, including 194oz Au @ 3.2 g/t Au in existing OP / UG mines (2) 6 Challenger & CGM 313koz Au Tunkillia 1.6Moz Au 3.1Moz Ag Tarcoola 20koz Au Tolmer Prospect Max Au: 83.6 g/t Max Ag: 17,600 g/t Wudinna 279koz Au BHP | Prominent Hill Cu-Au-Ag BHP | Olympic Dam Cu-U-Au-Ag BHP | Carrapateena Cu-Au Peak Iron | Peculiar Knob Peak Iron | Buzzard SIMEC Middleback Range Perth Rail Whyalla Pt Augusta Port Pirie Darwin Rail 1 2
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CGM ‘Hub 1’ Low-cost option to start production (3) • Preliminary mill refurbishment estimate A$26m (± 30%) (to original design) • Resources upgrades pending, DFS ongoing, early conversations with credit financiers • Targeting optimal lower-risk, lower-capex restart pathways utilising local feed sources Established infrastructure (1) • Fully permitted mill and Mining Leases • 600ktpa design throughput (fresh ore) • Strong historical gold recoveries of ~94.5% Adjacent permitted mineralisation • 313koz Au Mineral Resources, including: (2) • OP / UG mines: 194koz @ 3.23 g/t Au • TSF1 high-grade tailings up to 0.7-1.0 g/t Au Building blocks in place for lower-risk operations restart; Resource upgrades & DFS underway to evaluate pathways 3D schematic indicating CGM component replacement and refurbishment (3) 7 Source 3
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Tunkillia ‘Hub 2’ Platform Simple: bulk open pit, standard flowsheet, strong metal recoveries Conservative: A$3,500/oz Au (USD $2,333) pit optimisation Competitive: AISC below Australian / global industry averages (2) ~58,000m drilling completed, Resources upgrades pending (3) PFS underway focused on scale & feed optimisation (Q1 CY27) ML application post-PFS (Environmental Scoping approved) (4) May 2025 Optimised Scoping Study (OSS) outcomes: (1) Based upon A$5,000/oz Au and A$50/oz Ag revenue assumptions Source 1 PFS underway to confirm excellent project metrics & optimise returns 8 ~5 Mtpa x 8 years A$2,829 FCF / oz Au 121kozpa payable Au 259kozpa payable Ag A$2,222 AISC / oz Au 3.5x NPV/Capex 73% IRR (unlevered) 0.8 years payback A$1.4bn NPV7.5% A$399m Capex
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Tunkillia MRE Geometry ➢ ~80% of MRE tonnes & gold ounces within 200m of surface (1) ➢ ~300m long higher-grade core = valuable initial ‘Starter Pit’ (1) ➢ +200koz Au in shallow (~35m deep) oxide / transitional layer (1) Oblique View of Tunkillia Wireframe Model (Looking NW)1 N 400m (1) Attractive characteristics with shallow, higher-grade central ‘Starter Pit’ zone 9
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Tunkillia Rapid Payback High value ‘Starter Pits’ Assuming A$5,000/oz Au and A$50/oz Ag for revenue: (1) • ‘S1+S2’ → 365koz Au, 923koz Ag and A$1.3bn cash, paying back capex ~3x in ~27 months • At spot prices, S1 + S2 generate ~A$1.75bn cash (2) • ~58,000m drilling recently completed for Resource upgrades, PFS and Mining Lease application (3) • Assays to-date reinforce central higher-grade core, confirm new shallow high-grade mineralisation (3) Units LoM Avg ‘Starter Pit’ Mill throughput Mtpa ~5 5.9 Gold Grade g/t Au 0.82 1.19 Silver Grade g/t Ag 2.00 3.26 Payable Gold oz 121,800 206,101 Payable Silver oz 258,865 490,912 Revenue A$/oz Au $5,000 $5,000 Cash cost (4) A$/oz Au $2,171 $997 Cash margin (4) A$/oz Au $2,829 $4,003 10 (1) High value ‘Starter Pits’ drive early return of capital, underwrite financing profile Source 1
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Multiple enhancement options for BGD’s regional platformsWudinna Regional Leverage 11 Advanced platform, growth potential • JORC 279koz Au (5.81Mt @ 1.5 g/t Au) (1) • Deposits open to depth / strike extensions • Multiple untested exploration targets Attractive characteristics • Shallow mineralisation for open pit mining • 97 – 99% gravity / CIL leach recoveries (2) • Efficient flotation: ~90% contained gold into only ~6% of feed mass, producing a concentrate grading 20 – 25 g/t Au (2) Significant optionality • Blending: Main and secondary roads / tracks → CGM and future Tunkillia Mill • Main roads → 3 ports within 250km for direct concentrates export to market SIMEC Middleback Range Whyalla Pt Augusta Port Pirie Wudinna 279koz Au Investigator Silver (IVR) Paris (57Moz Ag) Alliance Resources Weednanna Iron Road (IRD) Central Eyre Iron Project
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T arcoola Emerging Platform Hunting high-grade blending feed for CGM & Tunkillia Mill 12 Historical high-grade goldfield • 1893 gold rush (~1893 – 1950) with over 600 historical workings across ML (1) • Perseverance open pit mine (20koz Au) sent ore → CGM during 2017 / 2018 (2) Significant potential • Complex and historically under-explored • Multiple targets on fully permitted Mining Lease and surrounding areas New discoveries, advancing rapidly • New structural model → dual Tolmer high-grade gold and silver discoveries • 2024: Tolmer ‘eastern gold zone’, with grades up to 83.6 g/t Au (3) • 2025: Tolmer ‘western silver zone’, with grades up to 17,600 g/t Ag (4) Perseverance Mine 20koz Au Tolmer Prospect Max Au: 83.6 g/t Max Ag: 17,600 g/t Darwin Rail Hiltaba Granites Hiltaba Granites Tarcoola Formation *Sources (1,2,3,4) Indiana (IDA) Minos Project
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‘Western silver’ and ‘eastern gold’ zones now cover ~1.5km footprintT olmer Silver Discovery 13 *Source: 1
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Dual shallow Ag / Ag-Au horizons with Ag-Au veining in underlying fresh rockT olmer W. ‘Silver Zone’ 14 (1)
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Key T argets CY 2026Hub 1│Central Gawler Mill Hub 2│Tunkillia Resource upgrade / Reserves drilling Mineral Resources update(s) Pre-Feasibility Study (PFS) Mining Lease (ML) application CY 2027 Focus on de-risked pathways to ‘producer’ status, optionality and growth; key milestones underpin available future low dilution funding pathways Perseverance Mine, Tarcoola Project 15 Resource upgrade / Reserves drilling Mineral Resources update Definitive Feasibility Study (DFS) Final Investment Decision (FID) FEED / site works (subject to FID) Corporate / Other Project financing & other agreements Fully funded to deliver key value- add milestones and value catalysts Perseverance Mine, Tarcoola Project
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Advancing consistently with clear pathway to operations Summary Well capitalised with fully aligned, experienced leadership Strategic platform including fully-permitted infrastructure Platform + performance = Value Accessible in AUD, USD and EUR on Australian, US and German markets Multiple catalysts and frequent news 16
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Alexander Scanlon Managing Director & CEO a.scanlon@bartongold.com.au +61 425 226 649 Jade Cook Company Secretary cosec@bartongold.com.au +61 8 9322 1587 Barton Gold Level 4, 12 Gilles Street Adelaide SA 5000 contact@bartongold.com.au www.bartongold.com.au Contact 17
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(1) Tables show the complete JORC MRE for each Project. Figures are subject to rounding, tonnages are dry-metric tonnes, and all Mineral Resources classified as ‘Inferred’ are approximate. Gold cut-off grades applied are: Tunkillia • 0.3 g/t Au (Area 223) • 0.3 g/t Au (Area 51) Tarcoola • 0.5 g/t Au (Perseverance Pit) • 0.4 g/t Au (Stockpiles) Challenger • 0.5 g/t Au (Main, West & SSW) • 1.0 g/t Au (Main UG) • 2.0 g/t Au (Deeps) • 0.0 g/t Au (TSF1 & TSF2) Wudinna • 0.5 g/t Au (all Deposits) Silver is considered as a by-product at Tunkillia and is reported as a subset of the reported gold MRE, and has only been reported where the block model reports >0.3g/t Au. Tunkillia Silver resources are reported only as Inferred resources independent of the block model classification for gold. Mineral Resources are reported using a gold price of A$3,500 / ounce. Refer to Prospectus and ASX announcements dated 14 Oct 2021, 26 Apr 2023, 1 Sep 2023, 11 Dec 2023, 4 Mar 2024, 3 Jul 2024, and 4 Mar / 30 Jun / 2 Jul / 8 Sep 2025 for further details of JORC (2012) Mineral Resource Estimates and Barton’s JORC (2012) Mineral Resources inventory. JORC (2012) Mineral Resources (1) 18
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The information relating to Exploration Results and Mineral Resources in this presentation is extracted from the Company’s Prospectus dated 14 May 2021 (Prospectus) and Barton ASX announcements as cross-referenced in the body of this presentation. A copy of the Prospectus is available for download at www.bartongold.com.au or www.asx.com.au. Following publication of the Prospectus, the Company published details of updated Mineral Resource Estimates (including in respect of the Company’s attributable ownership where a project is not wholly owned) on 14 October 2021 and 1 September 2023 (for the Western Gawler Craton Joint Venture Project, in which the Company no longer has any interest) and 26 April 2023, 11 December 2023, 4 March 2024 and 4 March 2025 (for the Tunkillia Project) and 3 July 2024 (for the Tarcoola Project). The Company confirms that the form and context in which the applicable Competent Persons’ findings are presented have not been materially modified from the relevant market announcement. The Company confirms that it is not aware of any new information or data that materially affects the Exploration Results and Mineral Resource information included in previous announcements and, in the case of estimates of Mineral Resources, that all material assumptions and technical parameters underpinning the estimates in the previous announcements continue to apply and have not materially changed. The Scoping Study referred to in this Presentation is a preliminary technical and economic study of Tunkillia’s potential viability. It is based on low level technical and economic assessments insufficient to support the estimation of Ore Reserves. Further exploration and evaluation work and appropriate studies are required before Barton will be in a position to estimate any Ore Reserves or to provide any assurance of an economic development case. All material assumptions underpinning the production targets and forecast financial information derived from the production targets continue to apply and have not materially changed. Competent Persons (Tarcoola) The information in this presentation that relates to the estimate of open pit Mineral Resources for the Tarcoola Gold Project is based upon, and fairly represents, information and supporting documentation compiled by Mr Ian Taylor BSc (Hons). Mr Taylor is an employee of Mining Associates Pty Ltd and has acted as an independent consultant on Barton Gold’s Tarcoola Gold Project, South Australia. Mr Taylor is a Fellow and certified Professional of the Australian Institute of Mining and Metallurgy (FAusIMM (CP Geo) 110090) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to the estimate of stockpile Mineral Resources for the Tarcoola Gold Project is based upon, and fairly represents, information and supporting documentation compiled by Dr Andrew Fowler MAusIMM CP (Geo). Dr Fowler is an employee of Mining Plus Pty Ltd and has acted as an independent consultant on Barton Gold’s Tarcoola Gold Project, South Australia. Dr Fowler is a Member of the Australian Institute of Mining and Metallurgy (AusIMM) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to Exploration Results for the Tarcoola Gold Project prior to 15 Nov 2021 (including drilling, sampling, geophysical surveys and geological interpretation) is based upon, and fairly represents, information and supporting documentation compiled by Mr Colin Skidmore BSc Hons (Geology) MAppSc. Mr Skidmore is an employee of Mining Plus Pty Ltd and has acted as an independent consultant on Barton Gold’s Tarcoola Gold Project, South Australia. Mr Skidmore is a Member of the Australian Institute of Geoscientists (AIG Member 05415)) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to new Exploration Results for the Tarcoola Gold Project after 15 Nov 2021 (including drilling, sampling, geophysical surveys and geological interpretation) is based upon, and fairly represents, information and supporting documentation compiled by Mr Marc Twining BSc Hons (Geology). Mr Twining is a full-time employee of Barton Gold Holdings Ltd, and is a Member of the Australasian Institute of Mining & Metallurgy (AusIMM Member 112811) and has sufficient experience with the style of mineralisation, the deposit types 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” (The JORC Code). Competent Persons (Tunkillia) The information in this presentation that relates to the estimate of Mineral Resources for the Tunkillia Gold Project (including drilling, sampling, geophysical surveys and geological interpretation) is based upon, and fairly represents, information and supporting documentation compiled by Mr Ian Taylor BSc (Hons). Mr Taylor is an employee of Mining Associates Pty Ltd and has acted as an independent consultant on Barton Gold’s Tunkillia Gold Project, South Australia. Mr Taylor is a Fellow and certified Professional of the Australian Institute of Mining and Metallurgy (110090) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to Exploration Results for the Tunkillia Gold Project prior to 15 Nov 2021 (including drilling, sampling, geophysical surveys and geological interpretation) is based upon, and fairly represents, information and supporting documentation compiled by Mr Colin Skidmore BSc Hons (Geology) MAppSc. Mr Skidmore is an employee of Mining Plus Pty Ltd and has acted as an independent consultant on Barton Gold’s Tunkillia Gold Project, South Australia. Mr Skidmore is a Member of the Australian Institute of Geoscientists (AIG Member 05415)) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to new Exploration Results for the Tunkillia Gold Project after 15 Nov 2021 (including drilling, sampling, geophysical surveys and geological interpretation) is based upon, and fairly represents, information and supporting documentation compiled by Mr Marc Twining BSc Hons (Geology). Mr Twining is a full-time employee of Barton Gold Holdings Ltd, and is a Member of the Australasian Institute of Mining & Metallurgy (AusIMM Member 112811) and has sufficient experience with the style of mineralisation, the deposit types 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” (The JORC Code). Competent Persons (Challenger) The information in this presentation that relates to the estimate of Mineral Resources for the Challenger Gold Project above the 215mRL level (including geological interpretation and resource estimates) is based upon, and fairly represents, information and supporting documentation compiled by Mr Ian Taylor BSc (Hons). Mr Taylor is an employee of Mining Associates Pty Ltd and has acted as an independent consultant on Barton Gold’s Challenger Gold Project, South Australia. Mr Taylor is a Fellow and certified Professional of the Australian Institute of Mining and Metallurgy (FAusIMM (CP Geo) 110090) and has sufficient experience with the style of mineralisation, the deposit type 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” (The JORC Code). The information in this presentation that relates to the estimate of Mineral Resources for the Challenger Mine below the 215 mRL level (Challenger Deeps) is based upon, and fairly represents, information and supporting documentation compiled by Mr Dale Sims, a Competent Person, who is a Chartered Professional Fellow of the Australasian Institute of Mining and Metallurgy (AusIMM) and a Member of the Australian Institute of Geoscientists (AIG). Mr Sims is the principal of Dale Sims Consulting Pty Ltd and an independent consultant engaged by Barton Gold for this work and 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 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). Competent Persons (Wudinna) The information in this announcement that relates to the estimation and reporting of the gold Mineral Resource estimates for the Barns, Baggy Green and White Tank Deposits has been compiled by Mrs Christine Standing BSc Hons (Geology), MSc (Min Econs), MAusIMM, MAIG. Mrs Standing is a Member of the Australian Institute of Geoscientists and the Australian Institute of Mining and Metallurgy and is a full-time employee of Snowden Optiro (Optiro Pty Ltd) and has acted as an independent consultant. The information in this announcement that relates to the estimation and reporting of the gold Mineral Resource estimate for Clarke has been compiled by Ms Justine Tracey BSc Hons (Geology), MSc (Geostatistics), MAusIMM. Ms Tracey is a Member of the Australian Institute of Geoscientists and is a full-time employee of Snowden Optiro (Optiro Pty Ltd) and has acted as an independent consultant. Mrs Christine Standing and Ms Justine Tracey have sufficient experience with the style of mineralisation, deposit type under consideration and to the activities undertaken to qualify as Competent Persons as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code). Competent Persons Statements 19
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Slide 4 (Capital Structure) 1 Refer to ASX announcement dated 2 October 2026 2 As at market close on 13 October 2026 3 Refer to ASX announcement dated 30 September 2026; Barton also has another $4.5m restricted cash posted as security for rehab bank guarantees 4 Calculated as market capitalization plus debt less cash; subject to rounding 5 As at market close on 2 October 2026 6 Estimate based upon Company analysis as at 24 July 2026 7 Refer to ASX announcements dated 24 January 2025 and 10 September 2026 8 Refer to ASX announcements dated 5 and 22 September 2025 Slide 6 (District Leader) 1 Refer to Prospectus 2 Refer to ASX announcement dated 8 September 2025 3 Refer to ASX announcement dated 5 May 2025 4 Refer to ASX announcements dated 3 July / 27 August 2024 and 5 Aug / 9 Dec 2025 Slide 7 (CGM ‘Hub 1’) 1 Refer to Prospectus and ASX announcement dated 21 July 2025 2 Refer to ASX announcements dated 30 June and 8 September 2025 3 Refer to ASX announcement dated 21 July 2025; capex estimated on ±30% accuracy Slide 8 (Tunkillia ‘Hub 2’ Platform) 1 Refer to ASX announcements dated 4 Mar / 5 May 2025 2 World Gold Council / Aurum Analytics – Global / ANZ Gold Ops (respectively) (Q3 2025) 3 Refer to ASX announcements dated 2 / 16 December 2025, and 21 January, 16 March, 27 May, 30 July, 6 / 31 August and 16 September 2026 4 Refer to ASX announcement dated 8 September 2026 Slide 9 (Tunkillia MRE Geometry) 1 Refer to ASX announcements dated 11 December 2023 & 4 March 2025 Slide 10 (Tunkillia Rapid Payback) 1 Refer to ASX announcement dated 5 May 2025 2 Refer to ASX announcement dated 5 May 2025 and spot gold and silver prices of AUD $6,140/oz and AUD $93/oz (respectively) 3 Refer to ASX announcements dated 2 / 16 December 2025, and 21 January, 16 March, 27 May, 30 July, 6 / 31 August and 16 September 2026 4 Excluding pre-strip, net of Ag by-product credit Slide 11 (Wudinna Regional Leverage) 1 Refer to ASX announcements dated 30 June, 2 July and 8 July 2025 2 Refer to ASX announcement dated 10 September 2025 Slide 12 (Tarcoola Emerging Platform) 1 Refer to Prospectus 2 Refer to Prospectus as ASX announcement dated 3 July 2024 3 Refer to ASX announcements dated 27 Aug 2024, and 30 Jan, 25 Aug and 9 Dec 2025 4 Refer to ASX announcements dated 27 March, 16 April and 5 August 2025 Slide 13 (Tolmer Silver Discovery) 1 Refer to ASX announcement dated 18 August 2026 Slide 14 (W. ‘Silver Zone’) 1 Refer to ASX announcement dated 9 December 2025 References 20