Announcement PDF Andromeda RIU Sydney Investor Roadshow 27 August 2026 ASX:ADN andromet.com.au Level 10, 431 King William Street, Adelaide, South Australia 5000 +61 8 7089 9800 Authorised for release by the Board of Directors of Andromeda Metals Ltd This presentation contains summary information about Andromeda, and its activities current only at the date of this presentation. This presentation is for information purposes only. The information in the presentation is of a general nature only and does not purport to be complete. This presentation should be read in conjunction with Andromeda’s most recent financial report and other periodic and continuous disclosure announcements lodged with the Australian Securities Exchange (ASX) which are available at www.asx.com.au and also available on Andromeda’s website at www.andromet.com.au. No investment or financial product advice The information contained in this presentation does not constitute investment advice or financial product advice (nor taxation or legal advice) and is not intended to be used as the basis for making an investment decision or as a recommendation to acquire securities in Andromeda. The information contained in this presentation should not be relied upon as a recommendation or forecast by Andromeda (including as to the performance of Andromeda or its share price). Readers should obtain their own professional advice and carry out their own independent investigations and assessment of the information in this presentation (including any assumptions) before acting. This presentation has been prepared without taking into account any particular person’s objectives, financial situation or needs; does not purport to identify the nature of specific market or other risks associated with any investment in the Company and does not constitute any legal, taxation, investment or accounting advice. An investment in Andromeda's securities is subject to investment and other known and unknown risks, some of which are beyond the control of Andromeda, including loss of income and principal invested. The Company does not guarantee any particular rate of return or the performance of the Company nor does it guarantee any particular tax treatment. Any investment decision should be based only on a person's own due diligence, inquiry, assessment and professional advice. Forward-looking statements This presentation contains or may contain certain forward-looking statements and comments about future events, that are based on Andromeda's beliefs, assumptions and expectations and on information currently available to management as at the date of this presentation. Often, but not always, forward-looking statements can generally be identified by the use of forward-looking words such as "may", "will", "expect", "plan", "believes", "estimate", "anticipate", "outlook", and "guidance", or similar expressions, and may include, without limitation, statements regarding plans, strategies and objectives of management, anticipated production and production potential, financial forecasts, product quality estimates of future Mineral Resources and Ore Reserves. Such statements are only expectations or beliefs and are subject to inherent risks and uncertainties which could cause actual values, results or performance achievements to differ materially from those expressed or implied in this presentation. Where Andromeda expresses or implies an expectation or belief as to future events or results, such expectation or belief is expressed in good faith and on a reasonable basis. No representation or warranty, express or implied, is made by Andromeda that the matters stated in this presentation will in fact be achieved or prove to be correct. Except as required by law, Andromeda undertakes no obligation to provide any additional or updated information or update any forward-looking statements, whether on a result of new information, future events, results or otherwise. Readers are cautioned against placing undue reliance on forward-looking statements. These forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties, assumptions and other important factors, many of which are beyond the control of Andromeda, the directors, and management of Andromeda. These factors include, but are not limited to difficulties in forecasting expected production quantities, the potential that any of Andromeda’s projects may experience technical, geological, metallurgical and mechanical problems, changes in market prices and other risks not anticipated by Andromeda, changes in exchange rate assumptions, changes in product pricing assumptions, major changes in mine plans and/or resources, changes in equipment life or capability, emergence of previously underestimated technical challenges, increased costs, and demand for production inputs. Not an offer This presentation is for information purposes and is not, and does not purport to be, a prospectus, product disclosure statement or any other offering document under Australian law or the law of any other jurisdiction. The information does not and will not constitute or form part of an offer, invitation, solicitation or recommendation in relation to the subscription, purchase or sale of securities in any jurisdiction. The distribution of this presentation in jurisdictions outside Australia may be restricted by law and you should observe any such restrictions. No warranty While care has been taken in preparing the information in this presentation, no representation or warranty, express or implied, is made as to the currency, accuracy, reliability, completeness or fairness of the information, opinions and conclusions contained in this presentation. The information in this presentation has been obtained from or based on sources believed by Andromeda to be reliable. This includes references to test results and reports completed by external parties. Information in this presentation which is attributed to, or derived from, a third-party source has not been independently checked or verified by Andromeda. No representation or warranty is made as to the accuracy, completeness or reliability of such information. This includes information relating to market data for kaolin or HPA, including forecast pricing, forecast supply and demand and market segments and end markets. To the maximum extent permitted by law, neither Andromeda nor its related corporations, Directors, officers, employees, advisers or agents, nor any other person, accepts any liability, including, without limitation, any liability arising from the use of this presentation or its contents or otherwise arising in connection with them, nor guarantees or makes any representations or warranties, express or implied, as to or takes responsibility for, the currency, accuracy, reliability, completeness or fairness of this presentation nor the information, opinions and conclusions contained in this presentation. Assumptions and Notes for Financial Information on 2023 DFS and Stage 1A+ in this presentation: Further details on the 2023 DFS and the assumptions and notes for the 2023 DFS (and risk factors applicable to the Company)can be found in the Company’s ASX Announcement ‘2023 Definitive Feasibility Study Results’ released on 24 August 2023. This should be read together with ASX Announcement dated 6 May 2024 “Andromeda expansion plans for The Great White Project” and “Clarification of expansion plans for The Great White Project” and the ore reserve estimate previously announced to ASX on 6 April 2022, "Great White Kaolin Project –Definitive Feasibility Study and Updated Ore Reserve". Andromeda confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the estimates and financial information continue to apply and have not materially changed. Assumptions and Notes for Financial Information on the HPA Scoping Study in this presentation: Further details on the HPA Scoping Study and the material assumptions, modifying factors and Cautionary Statement for the HPA Scoping Study (and risk factors applicable to the HPA Project) can be found in the Company’s ASX Announcement ‘Results of HPA Scoping Study’ released on 18 September 2025. Andromeda confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the estimates and financial information continue to apply and have not materially changed. Currency Unless otherwise stated, all cashflows in this presentation are in Australian dollars, are undiscounted and are in real terms (not subject to inflation/escalation factors). Mineral Resources and Ore Reserve Estimates Information that relates to Ore Reserve Estimate has been previously announced to ASX on 6 April 2022, "Great White Kaolin Project – Definitive Feasibility Study and Updated Ore Reserve. Andromeda confirms that it is not aware of any new information or data that materially affects the information included in the original market announcement and that all material assumptions and technical parameters underpinning the estimates continue to apply and have not materially changed. Andromeda confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and that all material assumptions and technical parameters underpinning the estimates continue to apply and have not materially changed. Competent Person's Statements The data in the HPA Scoping Study that relates to Ore Reserve Estimates for the Great White Deposit is based on, and fairly represent, information and supporting documentation fully reviewed and understood by Mr Joseph Ranford who is a Fellow of the Australasian Institute of Mining and Metallurgy (FAusIMM). Mr Ranford approves the Ore Reserve Estimates for the Great White Deposit. Mr Ranford is the Chief Operating Officer of Andromeda Metals Limited and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to the activity which he is undertaking, to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (the “JORC Code”). Mr Ranford consents to the information contained in this report being used in the form and context in which it appears. Mr Ranford holds Shares and Performance Rights in the Company and is entitled to participate in Andromeda’s employee incentive plan. Disclaimers and Important Information ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 2 ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 3 Andromeda is advancing two high-value projects, leveraging its high-quality kaolin resource Development ready industrial minerals platform with pathway into critical minerals The Great White Project: development ready 1 2 High Purity Alumina Project Australia’s Next Leading Industrial & Critical Minerals Company ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 4 Andromeda’s Competitive Advantages One high-quality resource | Two significant value opportunities The Great White Project Delivering premium kaolin products for use in high-end ceramics High Purity Alumina (HPA) Project Unlocking Critical Minerals from a High–Quality Kaolin Resource Development Ready All key permits in place for construction to commence Early Works completed & key long lead equipment items built and in storage in Australia Binding Offtakes 100% of Stage 1A+ planned production covered by binding offtakes by year 3 Robust Economics A$763M post-tax NPV8; 43% IRR; A$140M p.a. average EBITDA over LOM1 Clear execution pathway Defined route from funding to FID, construction and commercialisation for 28-year mine life A$75M debt facility credit approved, with balance of equity funding being sought for potential near-term cashflow2 High-quality feedstock Great White kaolin is naturally high in alumina and has low levels of deleterious impurities Proprietary process 8+ years spent developing innovative process which can produce HPA and Smelter Grade Alumina Testwork underway To produce commercial samples of 4N HPA for potential customers and assessment of by-product value-add potential Tier 1 mining jurisdiction: Located in South Australia which is ranked #4 globally in Investment Attractiveness Index4 Notes:(1) Refer to ASX ADN 24 August 2023 2023 Definitive Feasibility Study Results. All material assumptions and technical parameters underpinning the estimates and forecast financial information continue to apply and have not materially changed. (2) Subject to securing project development funding and a final investment decision. (3) Refer ASX ADN 24 August 2026 Andromeda Achieves 4N HPA at Continuous Pilot Scale. (4) Annual Survey of Mining Companies for 2025, Fraser Institute (February 2026) Proprietary HPA process Flexible flowsheet can produce HPA in a wide range of product forms and proven at pilot-scale to 99.9986% purity3 ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 5 High-quality kaolin products for premium ceramics Premium Quality Positioning in the Global Kaolin Market Notes (1) FeTi index: (% Fe2O3 + TiO2) / % Al2O3 x 1000; Source: Galesk Consultancy SLU, from proprietary database compiled from public data. (2) As determined by testing conducted on Great White CRM by Instituto de Tecnología Cerámica (ITC), located at the University of Castellón in Spain, and IberoClays. Low Iron/Alumina ratio (Fe2O3/Al2O3) vs global kaolin samples High dry mechanical strength is highly valued in large format porcelain tiles High whiteness is retained which is valued in high-quality porcelainware and ceramic tiles IDEAL FOR WHITE AND SUPER- WHITE PORCELAIN TILES GREAT WHITE CRM T A refined, high-quality ceramic product for the high-end ceramic tile and porcelain slab market Alumina min. 36.5% Iron max. 0.55% Whiteness min. ISO B 83% IDEAL FOR PREMIUM CERAMIC BODIES GREAT WHITE KCM 90 A semi-refined, high-quality kaolin for direct use, further refinement, or upgrading of inferior kaolins Alumina min. 35% Iron max. 0.7% IDEAL FOR PORCELAIN SLABS AND TABLEWARE GREAT WHITE CRM P A refined, high-quality ceramic product for the high-end porcelain tableware market Alumina min. 35% Iron max. 0.6% Whiteness / translucency min. ISO B 82% ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 6 Overview of Offtakers Notes (1) Refer ADN ASX dated 8 June 2023 titled Binding Offtake Agreement signed for Japanese market. (2) Refer ADN ASX dated 18 October 2023 titled Binding Offtake Agreement signed for Chinese market, adjusted per Seller’s volume option for Year 3. (3) Refer ADN ASX dated 19 January 2024 titled Binding Sales and Distribution Agreement Signed with IberoClays. (4) Refer ADN ASX dated 17 July 2024 titled Binding Offtake Agreement signed with Traxys. (5) Volumes exclude contracted volumes for Great White HRMTM. GWP Stage 1A+ supported by Binding Offtakes 100% of planned production committed under binding offtake contracts 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 Year 1 Year 2 Year 3 Wet metric tonnes per annum Plantan Yamada Foshan Gaoming IberoClays Traxys 1 2 3 4 Ongoing contracted volumes>> Stage 1A+ nominal production capacity Offtaker Markets Europe Southeast Asia Europe Japan Foshan Gaoming China Binding Offtake Agreements support Stage 1A+ production capacity5 ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 7 Great White Project Early Works Complete STATUS OF PLANNED ACTIVITIES Environmental compliance payments $3.79M rehabilitation bond lodged with DEM plus $670,000 SEB payment to the Native Vegetation Fund satisfies the precondition to starting site works1 Complete Site preparation, mine access Construction of the mine access road completed, with site signage erected at the mine entrance2 Complete Bulk earthworks Bulk earthworks for the Stage 1A+ processing plant, including controlled blasting, and hardstand established for road, processing facility and administration2,3 Complete Grade control drilling Drilling completed to confirm ore definition for short term mine planning3 Complete Geotechnical drilling Undertaken to better understand subsurface conditions, informing plant foundation and infrastructure design3 Complete Insurance arrangements Project insurance arrangements finalised3 Complete Transport of long-lead equipment Key long-lead items are now stored in Australia4 Complete Engineering Detailed Design Detailed design for the Stage 1A+ processing plant and supporting water infrastructure — progressed, currently paused3 Paused WHAT THIS DE-RISKS • Great White site established and construction schedule de- risked3 • Valuable operational experience gained under actual site conditions3 • Key long-lead equipment fabricated and stored in Australia4 • Balance of equity required for FID reduced to approximately $40 million, alongside the credit-approved A$75 million Merricks Capital debt facility3,5 Stage 1A+ Processing Plant A computer generated image of a plant Click the image to watch a 3D virtual walk-through of the Stage 1A+ Processing Plant design and layout References — Andromeda Metals Limited (ASX: ADN) announcements: (1) GWP Bond Lodged and Early Works Commence, 24 November 2025. (2) Progress of Early Works Activities at the Great White Project, 24 December 2025. (3) Great White Project Early Works Update, 15 April 2026. (4) Early Works Update — Transport of Long Lead Items Complete, 6 July 2026. (5) Credit Approved A$75 Million Debt Facility, 4 June 2025. ASX:ADN | andromet.com.au A De-Risked, Development-Ready Project Great White Project Progress Early Works and Site Preparation ✓ Early Works excavation ✓ Processing Plant Pad Early Works Construction Completed ✓ Grade control drilling ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 8 Great White Project Progress Equipment and Design ✓ Freehold land purchased ✓ Drum washer built ✓ Thickener built ✓ Centrifuge purchased ✓ Fluid bed dryer built ✓ Stage 1A Filter press built ✓ Cake feeder designed ✓ Engineering design ASX:ADN | andromet.com.au Andromeda Metals Ltd RIU Sydney Investor Roadshow 2026 9 ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 10 HPA Project What differentiates Andromeda’s process Kaolin-based production with low cost and low carbon2 Kaolin feedstock Secure, scalable supply Low cost Low cost of production and capital expenditure Low carbon Reduced footprint versus conventional methods Conventional Aluminium Alkoxide Process ✕ Aluminium metal feedstock Refined from aluminium metal through multiple energy intensive steps ✕ Energy and carbon intensive Extra stages add cost, energy and embedded emissions ✕ ✕ Complex plant design Reaction + solvent recovery systems Andromeda's kaolin-based process ✓ No aluminium metal inputs Refined Great White kaolin feedstock1 ✓ Market leading economics Potential to become a leading global producer of low cost low carbon HPA2 ✓ Tailored to the application Product forms from amorphous to crystalline (gamma to alpha)3 ✓ Quality Australian supply Vertically integrated from resource to refined product Notes (1) Refer to ADN ASX dated 1 May 2025 titled Andromeda Achieves HPA Breakthrough: Successful Production of 4N HPA & Validation of Novel Flowsheet (2) Refer to ADN ASX dated 18 Sept 2025 titled Results of HPA Scoping Study; all material assumptions and technical parameters underpinning the estimates and forecast financial information continue to apply and have not materially changed. (3) Refer to ADN ASX dated 7 October 2025 titled HPA Project – Next Phase of Commercialisation Underway. (4) High Purity Alumina Special Report, CRU, October 2025. ASX:ADN | andromet.com.au Concentrated supply Around 75% of global supply comes from China4 ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 11 High Purity Alumina (HPA) What is HPA used for? Light-emitting diodes (LEDs) Lithium-ion battery (LIB) separators HPA underpins the global transition to low-carbon and energy efficient technologies LEDs 50% LIB separators 40% Other semiconductors 2% Phosphor applications 2% Sapphire glass 3% Polishing & CMP slurries 3% Notes (1) High Purity Alumina Special Report, CRU, October 2025 Electronics and Semi-conductors Synthetic sapphire glass High Growth End-Use Markets1 Competing 3N-5N HPA Demand by End Use1 ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 12 Next Generation HPA applications HPA is used in next generation applications, including data centres powering AI, aerospace and defence1 Synthetic Sapphire for Defence Electronics Semi-conductors and Military Electronics Armored Vehicles and Soldier Protection Semi-conductors powering AI Optical and Surveillance Technology Aerospace Defence Notes (1) High Purity Alumina Market Assessment, FutureBridge (commissioned by Andromeda), August 2025 Defence Aerospace and Turbine Components ASX:ADN | andromet.com.au ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 13 High Purity Alumina (HPA) Unlocking a Critical Mineral from Great White Kaolin 01 THE RESOURCE • Great White kaolin is naturally high in alumina with low impurity levels • A premium, low-cost feedstock for HPA production 02 THE PROCESS • Proprietary process to produce HPA from kaolin, built on 8+ years of investigation, research and metallurgical testwork • Flexible flowsheet, product tailored to customer morphology and form 03 THE BREAKTHROUGH • Lab-scale testwork produced HPA at 99.9985% purity, validating the novel flowsheet1 • 2025 Scoping Study demonstrated market-leading economics and low-cost production potential2 • Additional value potential from silica and gallium co-products under evaluation 04 NEXT STEPS • Pilot plant commissioned, with the optimisation and testwork program underway3 • 4N (99.9986%) HPA produced at continuous pilot scale4 • Share Purchase Plan underway to support funding of the next stage of commercialisation5 PILOT PLANT TESTWORK PROGRAM — PROGRESS Commissioning of pilot plant Completed HPA testwork program Optimisation of pilot plant Underway First production of HPA samples Q3 2026 Samples available for customer evaluation 2H 2026 Silica and gallium by-products generated for value-add assessment In progress Engineering and operating data to support planned Pre-Feasibility Study Next study phase Notes (1) Refer to ADN ASX dated 1 May 2025 titled Andromeda Achieves HPA Breakthrough: Successful Production of 4N HPA & Validation of Novel Flowsheet. (2) Refer to ADN ASX dated 18 Sept 2025 titled Results of HPA Scoping Study; all material assumptions and technical parameters underpinning the estimates and forecast financial information continue to apply and have not materially changed. (3) Refer to ADN ASX dated 29 July 2026 titled HPA Pilot Plant Commissioned – Next Phase Underway. (4) Refer to ADN ASX dated 24 August 2026 titled Andromeda Achieves 4N (99.9986%) HPA at Continuous Pilot Scale, Advancing Commercialisation. (5) Refer to ADN ASX dated 12 August 2026 titled Share Purchase Plan to raise approximately $3 million. ASX:ADN | andromet.com.au THE HPA PATHWAY Underway ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 14 4N HPA Achieved at Continuous Pilot Scale Independent analysis confirms 99.9986% HPA purity produced from Great White kaolin1 99.9986% Measured HPA purity Independently verified by EAG Eurofins (GDMS) 4N achieved Above the 99.99% Al2O3 threshold Purity confirmed above the 4N threshold across test methods Co-products Amorphous silica and gallium under assessment Silica samples submitted for analysis; gallium recovery being assessed Milestone highlights ✓ 4N HPA at pilot scale Continuous pilot plant produced 4N HPA from Great White kaolin, scaling up from lab production1 ✓ Independently verified EAG Eurofins GDMS measured 14.47 ppm total metallic impurities, equal to 99.9986% purity1 ✓ Proprietary process de-risked Flowsheet proven under continuous pilot scale operating conditions ✓ Co-product upside Amorphous silica samples submitted for analysis; gallium recovery also being assessed Next steps and opportunity ✓ ✓ US HPA market entry Non-binding Heads of Agreement signed with Traxys North America to support Andromeda’s entry into the US HPA market2 ➜ Inputs to the next study phase (PFS) Engineering, design and operating data generated to support the next phase of technical studies ➜ Structural supply deficit emerging Global 4N+ supply deficit forecast to exceed 127% of demand by 2030, with ~75% of supply currently sourced from China; Notes: (1) ADN ASX 24 Aug 2026 — 4N HPA achieved at continuous pilot scale. (2) ADN ASX 19 Aug 2026 — Strategic HPA Supply HOA with Traxys. (3) ADN ASX 18 Sept 2025 — Results of HPA Scoping Study; all material assumptions and technical parameters continue to apply and have not materially changed. (4) High Purity Alumina Special Report, CRU, October 2025. (5) High Purity Alumina Market Assessment, FutureBridge (commissioned by Andromeda), August 2025. ASX:ADN | andromet.com.au Customer evaluation samples Commercial 4N HPA samples expected through 2H 2026 for prospective customer evaluation programs ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 15 Advancing Andromeda’s HPA Commercialisation Pathway STRATEGIC MILESTONE Heads of Agreement signed with Traxys North America1 5-year Potential sales agency agreement 2,000tpa of HPA targeted under the agreement ~US$40M2 Indicative annual sales potential US market Supporting US Critical Mineral Supply Chain initiative Andromeda & Traxys will work together to: ▪ Develop a targeted US go-to-market strategy ▪ Facilitate the introduction of Andromeda to Project Vault with the aim of securing sales contracts ▪ Facilitate introductions to other US-based customers and strategic partners ▪ Support HPA qualification and market entry into the US US Government’s Project Vault1 ▪ Launched in February 2026 ▪ Aims to establish a US $12 billion Strategic Critical Minerals Reserve to strengthen supply chain security and reduce reliance on China-dominated supply chains ▪ HPA designated as a Critical Mineral in the USA3 Notes (1) Refer ADN ASX announcement dated 19 August 2026 titled Andromeda Signs Strategic HPA Supply HOA with Traxys. (2) Based on indicative pricing of US$20,000 per tonne assumed under Andromeda’s HPA Scoping Study. (3) High-Purity Alumina is included under Aluminium in the United States’ Critical Minerals List: Final 2025 List of Critical Minerals | US Department of the Interior ASX:ADN | andromet.com.au Traxys is a leading global commodity trader and supply chain manager and has been appointed under the US Government’s Project Vault initiative to support critical minerals procurement in the US. ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 16 Potential to become a leading global producer of low-cost, low-carbon HPA HPA Scoping Study Results AUD USD Target Production 10,000 tpa NPV10 (pre-tax) $1,480 million US$947 million NPV10 (post-tax)1 $1,010 million US$647 million IRR2 88% (pre-tax) 69% (post-tax) Revenue $6,403 million US$4,098 million HPA Product Sale Price3 $31,250 / t US$20,000 / t Cash Operating Cost4 $4,718 / t US$3,020 / t Cash Operating Margin (%) 85% Average Annual EBITDA $247 million US$158 million Pre-production Capital Cost5 $155 million US$99 million Project Life6 24 years Notes (1) Refer to ADN ASX dated 18 Sept 2025 titled Results of HPA Scoping Study ; all material assumptions and technical parameters underpinning the estimates and forecast financial information continue to apply and have not materially changed. (2) Assumes company tax rate of 30% (3) Based on HPA market analysis, which may not reflect actual offtake agreements entered into. (4) Excludes potential sales of silicate by-products. (5) Includes ~30% contingency, excludes additional costs for PFS, marketing and other studies including ongoing test work estimated to take approximately 2 years (subject to available funding) and cost approximately $4 million. (6) Nominal Project Life of 24 years modelled, including approximately 2 years of design and construction for an HPA Production Facility with a 22-year production life. (7) High Purity Alumina Special Report, CRU, October 2025. (8) High Purity Alumina Market Assessment, FutureBridge (commissioned by Andromeda), August 2025. (9) Pre-production capital cost per tonne of annual production capacity. ASX:ADN | andromet.com.au Market-Leading Economics7,8 9 ASX:ADN | andromet.com.au Andromeda Metals Ltd | RIU Sydney Investor Roadshow 2026 17 Shares on Issue Share Price1 4.62 billion A$0.007 Notes (1) As at 25 August 2026. (2) As at 30 June 2026. Share and Cash Information Market capitalisation1 Cash-on-Hand2 A$32.4 million A$3.2 million Andromeda Metals Limited (ASX:ADN) Sue-Ann Higgins Executive Chair Jean-Dominique Sorel Non-Executive Director Mick Wilkes Independent Non- Executive Director Miguel Galindo Non-Executive Director Board of Directors Led by a highly experienced board and management team, including members who have funded, built, and delivered successful projects, as well as those with significant expertise in the sales and marketing of metals and industrial mineral