Announcement PDF ADX Energy Ltd | ASX: ADX | ABN 50 009 058 646 Corporate Presentation Date of Presentation 17 September 2026 A Multi-Well Program focussing on rapid production growth A European Focussed Producer and Explorer 2 ASX: ADX Corporate Presentation | June 2026 DISCLAIMER 2 Cautionary Statement IMPORTANT NOTICE: This document has been prepared by ADX Energy Ltd (“ADX”) for the purpose of providing information to interested analysts, investors and shareholders. Any statement, opinions, projections, forecasts or other materials contained in this document do not constitute any commitments, representations or warranties by ADX or its directors, agents and employees. Except as required by law, and only to the extent so required, directors, agents and employees of ADX shall in no way be liable to any person or body for any loss, claim, demand, damages, costs or expenses of whatsoever nature arising in any way out of, or in connection with, the information contained in this document. This document includes certain statements, opinions, projections, forecasts and other material, which reflect various assumptions. The assumptions may or may not prove to be correct. ADX recommends that potential investors consult their professional advisor(s) as investment in the company is considered to be speculative in nature. The information in this presentation is in summary form only and does not contain all the information necessary to fully evaluate any transaction or investment. It should be read in conjunction with ADX’ other periodic and continuous disclosure announcements lodged with the ASX. This document does not constitute an offer, invitation or recommendation to subscribe for or purchase securities and does not form the basis of any contract or commitment. Pursuant to the requirements of the ASX Listing Rule 5.41 and 5.43 the technical and Prospective Resources information relating to Austria and Italy contained in this presentation has been reviewed by Paul Fink as part of the due diligence process on behalf of ADX. Mr. Fink is Technical Director of ADX Energy Ltd is a qualified geophysicist with 30 years of technical, commercial and management experience in exploration for, appraisal and development of oil and gas resources. Mr. Fink is a member of the EAGE (European Association of Geoscientists & Engineers) and FIDIC (Federation of Consulting Engineers). ADX confirms that it is not aware of any new information or data that may materially affect the information included in the relevant market announcements for reserves or resources and that all material assumptions and technical parameters underpinning the estimates in the relevant market announcements continue to apply and have not materially changed. Independent audit of developed reserves have been completed for ADX’ Zistersdorf and Gaiselberg fields (“Fields”) in the Vienna basin and Anshof in Upper Austria (Austria) by RISC Advisory Pty Ltd (“RISC”). RISC conducted an independent audit of ADX’ Fields evaluations, including production forecasts, cost estimates and project economics. Production from existing wells is classified as Developed Producing. Production from planned recompletion of existing wells to new intervals is classified as Developed Non-Producing. RISC is an independent advisory firm offering the highest level of technical and commercial advice to a broad range of clients in the energy industries worldwide. RISC has offices in London, Perth, Brisbane and South-East Asia and has completed assignments in more than 90 countries for over 500 clients and has grown to become an international energy advisor of choice. PRMS RESERVES CLASSIFICATIONS USED IN THIS PRESENTATION: Developed Reserves are quantities expected to be recovered from existing wells and facilities. Developed Producing Reserves are expected to be recovered from completion intervals that are open and producing at the time of the estimate. Developed Non-Producing Reserves include shut-in and behind-pipe reserves with minor costs to access. Undeveloped Reserves are quantities expected to be recovered through future significant investments. A. Proved Reserves (1P) are those quantities of Petroleum that by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be commercially recoverable from known reservoirs and under defined technical and commercial conditions. If deterministic methods are used, the term “reasonable certainty” is intended to express a high degree of confidence that the quantities will be recovered. If probabilistic methods are used, there should be at least a 90% probability that the quantities actually recovered will be equal or exceed the estimate. B. Probable Reserves are those additional Reserves which analysis of geoscience and engineering data indicate are less likely to be recovered than Possible Reserves. It is equally likely that actual remaining quantities recovered will be greater than or less than the sum of the estimated Proved plus Probable Reserves (2P). In this context, when probabilistic methods are used, there should be at least a 50% probability that the actual quantities recovered will equal or exceed the 2P estimate. C. Possible Reserves are those additional Reserves that analysis of geoscience and engineering data suggest are less likely to be recoverable that Probable Reserves. The total quantities ultimately recovered from the project have a low probability to exceed the sum of Proved plus Probable plus Possible (3P) Reserves, which is equivalent to the high-estimate scenario. When probabilistic methods are used, there should be at least a 10% probability that the actual quantities recovered will equal or exceed the 3P estimate. Possible Reserves that are located outside the 2P area (not upside quantities to the 2P scenario) may exist only when the commercial and technical maturity criteria have been met (that incorporate the Possible development scope). Standalone Possible Reserves must reference a commercial 2P project. PROSPECTIVE RESOURCE CLASSIFICATIONS USED IN THIS PRESENTATION: Prospective Resources are those estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) relate to undiscovered accumulations. These estimates have both an associated risk of discovery and a risk of development. Further explorations appraisal and evaluation is required to determine the existence of a significant quantity of potentially moveable hydrocarbons. P(90) Estimate or Low Estimate: means at least a 90% probability that the quantities actually recovered will equal or exceed the estimate. P(50) Estimate or Best Estimate: means At least a 50% probability that the quantities actually recovered will equal or exceed the estimate. P(10) Estimate or High Estimate: means At least a 10% probability that the quantities actually recovered will equal or exceed the estimate. OIL AND GAS CONVERSIONS BOE means barrels of oil equivalent. Bcfe means billion of cubic feet of gas equivalent. Gas to oil conversion used in this presentation: 6 Mcf of gas = 1 barrel of oil. Mcf means thousand cubic feet of gas Corporate Presentation I 17 September 2026 3 ASX: ADX Corporate Presentation | June 2026 HIGH VALUE EUROPEAN ENERGY PORTFOLIO 3 Stable production base and transformational exploration in premium energy markets * Asset Attributes  High value hydrocarbons - Brent & CGH gas price 1  Excellent access to infrastructure  Seismic and well data base availability  Rapid licencing in pro-development Tier 1 jurisdictions  Increased focus on gas Vienna Basin Oil Fields | Austria Anshof Oil Field | Upper Austria Upper Austria Exploration Assets Sicily Channel Permit | Italy Production Licence | Romania * ADX Energy operates all production and exploration assets 1 Central European Gas Hub Three new applications Corporate Presentation I 17 September 2026 4 ASX: ADX Corporate Presentation | June 2026 COMPANY OVERVIEW 4 Stable production, near term reserve growth and high-impact exploration EXPLORATION PORTFOLIO RESOURCES NET to ADX MMBOE – P(MEAN) CAUTIONARY STATEMENT: Prospective Resources are those estimated quantities of petroleum that may potentially be recovered by the application of a future development project(s) relate to undiscovered accumulations. These estimates have both an associated risk of discovery and a risk of development. Further explorations appraisal and evaluation is required to determine the existence of a significant quantity of potentially moveable hydrocarbons. 1 ASX Release 9 July 2026, 2 Unaudited Reserves on 31 December 2025 3 Prospective Resources reporting date update 3.3.2026; see slide 19 4 Prospective Resources reporting date update 2.12.2025; see slide 19 5 Reporting date on 3.3.2026; see slide 19 Austrian Current Production 285 BOEPD 1 Austrian Exploration Portfolio 570 BCF Gas & 55 MMBBL Oil 3 Sicily Channel Gas Permit 619 BCF Gas 4 Multiple Farmouts Accelerate programs & reduce risk Operating Capability Generate, Explore & Develop Austrian 2(P) Reserves 1.47 MMBOE 2 Vienna Basin Fields and Anshof field High Equity Interests Ability to control program and transact EXPLORATION PORTFOLIO RESOURCES NET to ADX MMBOE – P(MEAN) Upper Austria – Gas 95 MMBOE Sicily Channel – Gas 103 MMBOE Upper Austria – Oil 55 MMBBL Total – 253 MMBOE5 Portfolio - 82% Gas / 18% Oil Corporate Presentation I 17 September 2026 5 ASX: ADX Corporate Presentation | June 2026 BOARD AND CAPITAL STRUCTURE 5 Experienced leadership team with relevant experience and local relationships Board & Senior Management Team Ian Tchacos B.Eng (Mech.) & Grad.Dip (Chem Eng) Executive Chairman Petroleum engineer with more than 30 years of international oil and gas experience spanning corporate strategy, M&A, exploration, development, production operations and energy finance. Former Managing Director of Nexus Energy, where he led its growth from a micro-cap explorer to an ASX Top 200 producer and operator. Paul Fink Msc (Geophysics) CEO & Executive Director Petroleum industry executive and geophysicist with over 25 years of international exploration and production experience across Europe, North Africa, Asia and Australia. Former senior manager with OMV and Vice President of Focus Energy, where he helped deliver a major exploration success and the IPO of Indus Gas on the London Stock Exchange. Edouard Etienvre MSc (Management) Non-Executive Director Energy and natural resources executive with over 20 years of experience across oil & gas, mining, shipping and offshore sectors. Brings extensive expertise in commercial strategy, business development, financing, M&A, project management and transaction structuring. Dave Gilbert MSc (Petroleum Geology) Non-Executive Director Highly experienced petroleum geologist with more than 35 years in exploration and production, including senior roles with Petrofina, Apache and OMV. Extensive expertise in exploration strategy, new ventures, project execution and managing international E&P operations across Europe, North Africa and Asia-Pacific. Alan Reingruber MSc (Petroleum Engineering) Managing Director, ADX VIE GmbH Petroleum engineer with 20 years of exploration and production experience in Austria. Former senior executive with RAG Austria, where he managed oil assets and later led the company's exploration and production business before joining ADX following the acquisition of RAG assets. Peter Ironside Company Secretary Chartered Accountant and corporate governance specialist with more than 40 years' experience in the resources sector. Extensive expertise in financial management, compliance, capital raisings and ASX-listed company administration, including involvement in several successful corporate transactions. Amanda Sparks Company Secretary Chartered Accountant and Fellow of FINSIA with over 30 years of resources industry financial experience. Specialist in company secretarial services, financial management, capital raisings, corporate transactions, governance and compliance for listed companies.  ASX listed oil & gas exploration and production company with European focus  Board comprised of international experienced, energy specialists  Corporate HQ in Perth, Australia and European operating office in Vienna, Austria Image | Drilling operations at Hoch-1 well Ticker ASX: ADX FRA: GHU Share price (at 15 September 2026) A$0.019 Number of shares 1084m Number of options 461m Market capitalisation A$20.6M Cash (unrestricted) at 30 June 2026 A$2.2M Debt A$0.8M Enterprise value A$19.1M Number of shareholders 2,101 Corporate Presentation I 17 September 2026 6 ASX: ADX Corporate Presentation | June 2026 EUROPEAN MACRO GAS FUNDAMENTALS High dependence on imported gas  Lack of investment in domestic gas exploration and production  Difficult regulatory environment in many jurisdictions  Delays in the implementation of renewable energy targets  Long term dependence on Russian gas Supply vulnerability and gas price trends  Only 10% of Europe’s gas is produced domestically  33% of supply imported from Norway  Over 40% of supply imported as LNG from USA and Middle East  Russia still makes up 12% of supply mix  European and Asian gas prices impacted long term by Qatar facilities destruction  Current gas price is approx. EUR 83 per MWh (US$24/MMbtu) or US$ 167/BOE Long term structural and policy fundamentals  Russian gas banned from EU by November 2027 (by legislative decree)  EU methane regulation creates a structural premium for low methane intensity gas (MRV3 compliance). Up to 43% of EU gas imports at non-compliance risk from 2027  Ongoing reliance on LNG is a supply risk and creates a pricing floor – Qatar supply disruption of approx. 5 years and US LNG will be MRV noncompliant in 2027 6 Longterm supply vulnerability and pricing volatility Russia (piped) Russia (LNG) Norway (LNG) Norway (piped) U.S.A. (LNG) Algeria (LNG) Algeria (piped) Other (LNG) U.K. Azerbaijan Libya LNG = 46% of supply EU gas supply mix2 12.5 12.2 3.6 16.5 17.9 2.9 0 2 4 6 8 10 12 14 16 18 Dutch TTF (CME) LNG JKM (Platts) U.S. nat. gas (CME) US$ per MMBtu 2025 Since 28-Feb-26 Main gas price indexes1 Approx. 6 x US and 3 x Australian Eastern State spot price 1 2025 average & average since 28-Feb-26; 2 Source: Bruegel; 3 Methane, Reporting and Verification of CH4 and CO2 Corporate Presentation I 17 September 2026 7 ASX: ADX Corporate Presentation | June 2026 THE OPPORTUNITY Establish ADX as a uniquely positioned producer and explorer  utilise existing production and export infrastructure for rapid production expansion  rapid commercialisation of new discoveries in high value markets Strategic footprint in premium energy markets  Tier 1 pro-development jurisdictions, large equity positions and the ability to execute  Availability of historic data, proof of hydrocarbons, infrastructure access and high value hydrocarbons Build scale, value and strength of business  build production and reserves base through appraisal, low risk exploration and development drilling in Austria Unlock value of the Company’s large prospective resources  Welchau well deepening to test large gas condensate resource up dip of Molln-1 discovery and Welchau side track to appraise up dip light oil discovery in Upper Austria  Sicily Channel 3D seismic acquisition over gas prospects defined by historic wells and 2D seismic. Develop position in a strategic gas play Collaborative relationships with OMV in Austria and ENI in Italy  Opportunity to acquire synergistic OMV and ENI non-core assets upon the development of ADX’ access to capital and the strength of its balance sheet. 7 Build production base to achieve critical mass and unlock value of high impact exploration Sicily Channel ADX’ C.R 150.AU Permit plus three additional applications. The total area of the new applications as well as the C.R 150.AU Permit is approximately 1650 km2 Corporate Presentation I 17 September 2026 8 ASX: ADX Corporate Presentation | June 2026 RECENT ACTIVITIES Successful Welchau light oil test and a 3.5 fold increase in prospective gas resources  Updip Light Oil Accumulation confirmed by oil and gas recovered at surface  New mapping identifies - 18 MMBBL Pmean 1,2 up dip oil and down dip gas condensate appraisal of 387 BCF Pmean 1,2  Well Deepening (approx. 700m) can access down dip gas play 8 Welchau-1 test, Upgrade Sicily Channel Resources, HOCH-1 shallow gas discovery and Production Increase 31% increase in Sicily channel gas resources supported by Independent Review  Updated resource estimates incorporating all available data 619 BCF Pmean 1,3  Independent review confirms resource estimates and play potential  Three new permit applications in extensive gas play HOCH-1 well encountering multiple gas zones - the first zone tested 2.8 MMSCFPD  First of three permitted shallow gas wells to be drilled in 2026  8 gas sands encountered in well - 4 to 5 zones being tested to confirm volumes  First zone tested water free gas at approx. 450 BOEPD oil equivalent Welchau -1 Up dip oil testing operations HOCH -1 zone -1 gas testing operations 1Refer to Cautionary Statement in slide 4 of presentation 2Prospective Resources reporting update 3.3.2026; see slide 19 3Prospective Resources reporting update 2.12.2025; see slide 19 4ASX reporting date update 9.7.2026 Austrian production increased by 35% to 285 BOEPD 4  75 BOEPD increase in Vienna Basin Field production  Further infill drilling potential Corporate Presentation I 17 September 2026 9 ASX: ADX Corporate Presentation | June 2026 NEAR TERM ACTIVITIES  HOCH-1 (50%) gas testing 5 zones, GOLD -1 (90%) 1 and SCHOE-1 (50%) low risk shallow gas drilling  Shallow gas and near field oil prospect farmout program to fund high equity wells  Nearfield oil drilling at PERG (100%), Vienna Basin Oil Field (100%) development drilling and Welchau deep  Sicily channel play expansion and seismic acquisition 9 Market Catalysts 2026 and 2027 – Focus on Production Growth and Progressing Sicily Channel and Welchau July 26 July 27 Jan 27 Jan 28 July 28 Upper Austria Shallow Gas Upper Austria Near Field Oil Vienna Basin Production Enhancement and Development Drilling Upper Austria Welchau HOCH Testing GOLD Drilling SHOE Drilling PERG Drilling Sicily Channel Shallow gas program production Test production Permanent production RAG -57 Drilling GA-96 Drilling Permanent production Seismic Repro & Mapping Independent Review Welchau Deepening Independent Review Data Purchases Play Expansion 3D Seismic Acquisition 2026 2027 Targeting 1000 BOEPD plus Targeting further 700 BOEPD Behind pipe production enhancement Corporate Presentation I 17 September 2026 1 Refer ASX announcement 14 September 2026 – partner to earn 10% by funding 20% 10 ASX: ADX Corporate Presentation | June 2026 AUSTRIAN PRODUCTION GROWTH WORK PROGRAM 10 Phased program focussed on rapid production build-up  Phase 1 Program: Upper Austrian - low risk shallow gas program – HOCH-1, GOLD and SHOE wells  Phase 2 and 3 Program: - Austrian near field oil exploration and development drilling program – Pergen and Vienna Basin Wells Phase 1 Program  Production rate at ADX net interest  Gross revenue split  EUR 3 million drill & testing spend expected to deliver approx. 1000 BOEPD net production EUR 44 m revenue Phase 1, 2 and 3 Program  Production rate at ADX net interest  Gross revenue split  EUR 12 million drill & testing spend expected to deliver approx. 1550 BOEPD net production EUR 121 m revenue Corporate Presentation I 17 September 2026 11 ASX: ADX Corporate Presentation | June 2026 ESTABLISHED PRODUCTION BASE WITH GROWTH POTENTIAL 11 Low-decline operated assets with development upside and infrastructure capacity 70% Economic Interest Anshof Oil Field Current rate – 100 BOPD GROSS 100% Economic Interest Vienna Basin Fields Current rate – 220 BOEPD GROSS High value, low royalty production with development upside 1.57 mmbbl 2P developed reserves 1 Land ownership, oil piped to Vienna refinery & access to gas network High value oil from high quality sandstone reservoirs 3,000 bpd facility and multiple near field appraisal and exploration targets Oil transported via truck and rail to Vienna refinery 1 Reserves Reporting Date & Valuation (Independently Audited) 04.11.2021 less production to 31 December 2024 Corporate Presentation I 17 September 2026 12 ASX: ADX Corporate Presentation | June 2026 UPPER AUSTRIA DRILLING PROGRAM TARGETING RAPID PRODUCTION GROWTH 12 Phase 1 Shallow gas well program and Pergen near field oil prospect 01 HOCH-1 Production testing ongoing at 50% economic interest 02 GOLD-1 Shallow gas well 8.3 BCF P(mean) 1,2 at 90%4 economic interest 03 04 Upper Austrian Exploration and Appraisal Portfolio 1 3 2 4 SCHOEN-1 Shallow gas well 6.3 BCF P(mean) 1,2 at 50% economic interest PERGEN-1 Near-field oil prospect 6.5 MMBBLs P(mean) 1,2,3 at 100% economic interest Project Operational Sequence Drilling permitting approved in a short time of 4 – 6 months  HOCH-1 encountered 8 gas sands – testing of first zone produced at 2.8 MMSCFPD June 2026  The GOLD and SCHOEN shallow gas prospects to follow; • Low drilling costs, large upside resources and tie in to close by pipelines provides rapid cashflow build up • GOLD-1 partially farmout funded  PERGEN-1 near field oil prospect has been matured for drilling. Permitting and land acquisition commenced 1Refer to Cautionary Statement in slide 4; 2 Prospective Resources reporting update 3.3.2026; see slide 19; 3 Estimate includes oil and solution gas; 4 Refer ASX announcement 14 September 2026 – partner to earn 10% by funding 20% Corporate Presentation I 17 September 2026 13 ASX: ADX Corporate Presentation | June 2026 HOCH-1 SHALLOW GAS WELL RESULTS  Eight gas sands encountered in HOCH-1 well  First zone tested at stable water free rate of 2.8 MMSCFPD (450 BOEPD)  Up to 5 Zones to be tested – three zones in phase 1 and three zones in phase 2  Flow testing and pressure build up of zones during July and August 2026 to determine reserves potential of each zone and commerciality of well 13 Promising results for the first well in three well program Testing of zone 1 in the HOCH-1 shallow gas well Corporate Presentation I 17 September 2026 14 ASX: ADX Corporate Presentation | June 2026 NEAR FIELD OIL PROSPECT - PERGERN 14 Material resource potential, low drilling costs and rapid development cycle time PERGEN is a material, prospective short development cycle, oil exploration prospect adjacent to producing fields that is matured for drilling  Large Resource Base of 6.5 MMBBLS P(Mean) 1, 2, 3 with stacked pay and nearby field analogues  Shallow, Low Cost Well approx. EUR 3.2 million  Rapid Commercialisation and robust economics due to infrastructure availability  Early Production possible from long term production testing  High value crude traded at Brent equivalent  Attractive farmout candidate due to size and low risk 1 Revised estimate @ 19 May 2026. Previous reporting date – 3 March 2026 2 Refer to Cautionary Statement; slide 4 3 Estimate includes oil and solution gas Pergen Seismic Section Showing Well Path Pergen Depth Map Corporate Presentation I 17 September 2026 15 ASX: ADX Corporate Presentation | June 2026 WELCHAU-1 STATUS 15 Testing confirms hydrocarbons while the deeper gas objective remains untested  Welchau -1 drilling and testing has confirmed a strategically significant hydrocarbon discovery  Hydrocarbon shows, light oil sampled in Steinalm Formation and produced from Reifling Formation during testing  The geometry of the Welchau anticline has been updated integrating additional surface data resulting in a revised geological interpretation  A structural crest mapped approximately 500 metres updip from the top of the Steinalm reservoir intersected in Welchau-1  Deeper gas objective can be reached cost effectively by deepening Welchau-1 well Welchau Anticline showing Molln Gas Fairway and Welchau Updip Light Oil Potential in ADX AT-II licence Oil recovered at surface during Reifling Fm testing Light Oil Accumulation 1. 450 m of gas shows and light oil sampled 2. Testing and sampling confirmed light oil accumulation at well with 500m up dip oil potential at crest of structure 3. 18 MMBBL P(mean)1,3 prospective resources Gas Condensate Target 1. Original target remains undrilled below 1733m 2. Two duplexes mapped below current well depth in pressure communication with Molln-1 gas condensate discovery 3. Shallower duplex 600 to 700 m below 4. 387 BCF + 14 MMBBL 1,2 P(mean) Duplex 1 and 2 prospective resources (Gas and Condensate) Welchau Anticline is an interconnected petroleum system - Pressure and structural data demonstrate pressure continuity between Welchau-1 and downdip Molln-1 discovery 1 Refer to Cautionary Statement; see slide 4 2 Prospective Resources reporting update 3.3.2026 3 Prospective Resources reporting update 4.2.2026 Corporate Presentation I 17 September 2026 16 ASX: ADX Corporate Presentation | June 2026 STRATEGIC IMPORTANCE OF OFFSHORE SICILY The Sicily Channel is the best near-term option for getting Med gas into Europe  Direct pipeline route available to European markets via the TransMed or Greenstream pipelines  Direct open access to Italian pipeline system owned by SNAM at Mazara del Vallo  Stable politics, shallow water and clean biogenic gas (99% methane)  Excellent fiscal terms  Other than the Eastern Med the most proven gas play  Big push from super majors in deep water frontier areas - Offshore Greece and Malta 16 The Mediterranean Sea has become the new gateway for gas into Europe Corporate Presentation I 17 September 2026 17 ASX: ADX Corporate Presentation | June 2026 C.R 150.AU - SICILY CHANNEL PERMIT 17 High impact gas resource potential in an emerging gas province with running room RecentADX Permit August 2025 ENI Gas Project August 2024 and new applications  An emerging and newly producing offshore gas province  Shallow water (<100 m), drill depths (700-1600 m)  Gas shows in wells and good quality legacy 2D seismic  Proximity to tie in point onshore at Mazara (less than 50 km from permit)  Stacked pay and productive sands  Sweet biogenic gas (99% methane)  Favourable fiscal terms with 10% royalty and 28% corporate tax  Excellent gas pricing in Italy 619 BCF P(mean) prospective resources1,2 from 9 high-graded prospects in the permit using historic data and new field data 1 Refer to Cautionary Statement: see slide 4 2Prospective Resources reporting update 2.12.2025 Recent Progress  ENI dataroom to review the entire seismic database (Q1 2026)  Seismic data purchase and prospect re-evaluation Independent Review confirms play and ADX resources estimates Highly prospective permit for gas proven by historic data from deeper oil exploration Sicily Channel ADX’ C.R 150.AU Permit plus three additional applications Applications process will take 3 months - approximately 1650 km2 Corporate Presentation I 17 September 2026 18 ASX: ADX Corporate Presentation | June 2026 LARGE-SCALE GAS FAIRWAY WITH EXPANSION POTENTIAL 18 Extensive technical dataset underpins resource growth and future acreage opportunities A biogenic gas play fairway identified from extensive data and past ADX experience Map shows distribution of the Pliocene-Quaternary (yellow) and Tortonian-Messinian siliciclastic (orange) foredeeps  The Lippone-Mazara gas field (ENI 100%) and strong gas shows from the Terravecchia Fm. sandstone reservoirs in historical wells confirm the NE-SW play fairway  Opportunity to apply for other exploration areas in water depth of less than 100m  ADX has extensive knowledge of the play from exploration in nearby Tunisian acreage including 3D seismic and drilling OWC 1600 m TVDSS View from South-East 80 meter oil column 110 meter oil column Undrained Pool 15 mmbo (2C) Partly Drained Pool (21 mmbo) 13 mmbo (2C) remaining 5 km Nilde Oil Field – remaining oil potential Nilde Oil Field Potential - historic oil field in C.R.150.AU licence  The Italian Ministry of Environment and Energy Security (MASE) with its Hydrocarbon and Georesources department (UNMIG) published a note regarding the Nilde oil fields potential as a CO2 storage project  In conjunction with a Carbon Capture Storage project, the remaining Nilde oil could potentially be recovered C.R 150.AU ADX historic acreage in Tunisia Nilde oil field New Legislation allowing oil development being proposed by PM Meloni Corporate Presentation I 17 September 2026 19 ASX: ADX Corporate Presentation | June 2026 RESOURCE TABLES 19 Low Best Mean High P(90) P(50) P(Mean) P(10) ADX equity (BCF) (BCF) (BCF) (BCF) interest Upper Miocene 1 22 60 77 158 100% Biogenic Gas 2 26 64 80 160 100% 3 46 111 136 267 100% 4 17 41 51 101 100% 5 25 60 74 146 100% Sub-total 136 336 418 832 Upper Miocene 6 18 43 52 102 100% Biogenic Gas 7 15 37 46 90 100% 9 19 68 103 241 100% Sub-total 52 148 201 433 188 484 619 1265 2 Prospective Resources reporting date update 30.8.2022 3 Prospects / Leads included in previous reporting date 2 Additional Prospects / Leads not previously reported TOTAL (BCF) Arithmetic Sum 1 Prospective Resource Estimates are unrisked recoverable. They have been estimated using probabilistic methodology in accordance with SPE-PRMS (2018). All totals are aggregated arithmetically. ADX Sicily Channel Prospective Resources Estimates 1 C.R 150.AU Permit ASX Reporting Date: 2 December 2025 Play Type Prospect/ Lead 3 Refer to Cautionary Statement; see slide 4 UPPER AUSTRIA PROSPECT INVENTORY including Welchau 3 (last reporting date 3 March 2026) Sicily channel PROSPECT INVENTORY 3 (last reporting date 2 December 2025) Low P90 Best P50 Mean (Pmean) High P10 Low P90 Best P50 Mean (Pmean) High P10 GOLD 4.1 7.5 8.3 13.4 - - - - 100 ADX-AT-II ZAUN 1.5 2.7 3.0 4.8 - - - - 100 ADX-AT-II GRAB 1.2 1.9 2.0 2.9 - - - - 100 ADX-AT-II HOCH 1.5 5.2 8.0 17.3 - - - - 50 ADX-AT-I SCHOE 1.9 5.4 6.3 12.1 - - - - 50 ADX