Announcement PDF ABx Group Limited Suite 2 Level 11, 385 Bourke Street, Melbourne, VIC 3000 ABN 14 139 494 885 P: +61 3 9692 7222 F: +61 2 9956 7355 Australian Aluminium Council Site Visit Presentation ABx Group Limited (ASX: ABX) (“ABx” or “the Company”) provides the attached presentation from the Australian Aluminium Council site visit to the ALCORE Technology Centre. This announcement is approved for release by the Managing Director. For further information please contact: Dr Mark Cooksey MD & CEO ABx Group +61 447 201 536 mcooksey@abxgroup.com.au www.abxgroup.com.au Media Chapter One Advisors David Tasker / Alex Baker +61 433 112 936 / +61 432 801 745 dtasker@chapteroneadvisors.com.au abaker@chapteroneadvisors.com.au About ABx Group Limited ABx Group Limited (ABx) is a uniquely positioned Australian company delivering materials for a safer, cleaner future. The three priority projects are: • Heavy rare earths: Supplying light and heavy rare earths from Tasmania into Western supply chains o Maiden mixed rare earth carbonate produced and positive customer feedback received o Processing Options Analysis conducted in partnership with external experts • Clean fluorine chemical production: Producing industrial chemicals from aluminium smelter by-product (ALCORE) o Continuous pilot plant under construction in Bell Bay, Tasmania • Near-term bauxite production: Mining bauxite resources for the aluminium, cement and fertiliser industries o Agreements executed with Good Importing International for bauxite projects in Queensland and New South Wales, and $2.7 million initial payment has been received o Approvals well advanced for DL130 bauxite project in northern Tasmania ABx endorses best practices on agricultural land and strives to leave land and environment better than we find it. We only operate where welcomed. ASX Announcement 25 May 2026 ASX: ABX ASX:ABX Clean fluorine chemical production: producing industrial chemicals from aluminium smelter by-product AUSTRALIAN ALUMINIUM COUNCIL VISIT MAY 2026 2 ASX:ABX Heavy Rare Earths Supplying light and heavy rare earths from Tasmania into Western supply chains Clean fluorine chemical production Producing industrial chemicals from aluminium smelter by-product Near-term bauxite production Mining bauxite resources for the aluminium, cement and fertiliser industries Delivering materials for a safer, cleaner future 2 ASX:ABX 3 INVESTMENT PROPOSITION Low-cost hydrogen fluoride production using aluminium smelter bath by-product  Will enable hydrogen fluoride production in Australia, to reduce 100% reliance on imports Team Experienced and capable Strongly increasing demand for fluorine Batteries Supply shortage No hydrogen fluoride produced in Australia. Limited global fluorspar resources New fluorine source available at low cost Aluminium smelter by-product Chemical process is low risk Adaptation of existing commercial process Pathway to production First mover globally: at pilot plant stage ASX:ABX 4 HIGHLY EXPERIENCED TEAM DR MARK COOKSEY JOYCELYN MORTON IAN LEVY XIAO LIANG Managing Director Non-Executive Chair Non-Executive Director Principal Engineer  More than 20 years with Rio Tinto and CSIRO  Significant experience in developing and commercialising new processes in minerals and metals industry  PhD in Chemical & Materials Engineering  Over 30 years’ experience as an executive and director with Australian and international listed companies, including Argo Investments, ASC and Snowy Hydro  Chair of the Audit, Risk and Compliance Committee for multiple boards  Fellow and Life Member of CPA Australia, and former National President  30 years of senior management and geological experience with multiple commodities, including at WMC  Previously CEO of Allegiance Mining and Director of Gloucester Coal  Member of JORC for 11 years (4 years as Vice Chairman) and Federal President, Australian Institute of Geoscientists  Over 15 years of expertise in chemical process innovation and intensification, including conceptual design, fundamental research, and process scale-up.  With extensive leadership experience, he drives cutting-edge technology development and oversees successful planning and implementation of new technologies at ALCORE ASX:ABX 5 FLUORINE VALUE CHAIN Fluorspar Hydrogen Fluoride Feedstock Fluorine Chemicals High purity quartz, natural graphite, semiconductor manufacture Direct Use Feedstock Direct Use Steelmaking, cement production Batteries, fluorocarbons, aluminium fluoride (metspar) (acidspar)  Hydrogen fluoride used directly, and as feedstock to produce fluorine chemicals 6 ASX:ABX 6 Rapidly growing demand for renewable energy Significant traditional markets Aluminium fluoride Aluminium smelting HCFC Refrigerants Hydrogen fluoride Semiconductor manufacture Solar cell manufacture Metal treatment PTFE Wire insulation, bearings Fluorine Chemical Applications PVDF Li-ion batteries (separators and electrodes) Lithium hexafluorophosphate Li-ion batteries (electrolytes) Hydrogen fluoride Graphite purification STRONGLY INCREASING DEMAND FOR FLUORINE “From 2025 to 2035, fluorine demand for energy applications will increase from 5% to 22% of total fluorine demand” US DOE Critical Minerals Assessment, 2023 ASX:ABX 7 SUPPLY SHORTAGE: LIMITED SUPPLIES OF FLUORSPAR Increasing fluorspar prices Source: Asian Metal Government recognition Critical Minerals Lists Fluorspar USA Europe Japan Canada Fluorine Australia “In 2035, fluorspar demand will exceed current supply by 40-70%” US DOE Critical Minerals Assessment, 2023 ASX:ABX 8 ALUMINIUM SMELTER BATH Mechanism of surplus bath formation Alumina contains sodium oxide (Na2O) impurity  Na2O reacts with aluminium fluoride (AlF3) in the bath to produce sodium fluoride (NaF) and alumina (Al2O3)  AlF3 additions required to maintain AlF3 content  Production of NaF and addition of AlF3 means that bath (Na3AlF6) is produced Main reaction: 2Al2O3 + 3C  4Al + 3CO2 Side reactions: 3Na2O + 2AlF3  6NaF + Al2O3 3NaF + AlF3  Na3AlF6 Compound Chemical Formula Content (%) Cryolite Na3AlF6 (3NaF.AlF3) 88-94 Calcium Fluoride CaF2 4-6 Alumina Al2O3 2-6 Iron Oxide Fe2O3 <0.08 Silica SiO2 <0.08 Carbon C <0.4 Alumina Bath Aluminium metal CO2 Carbon Electricity  Used as electrolyte in aluminium smelting, because it dissolves alumina (Al2O3) and is electrically conductive Typical bath composition Aluminium smelting ASX:ABX 9 NEW FLUORINE SOURCE AVAILABLE: ALUMINIUM SMELTER BY-PRODUCT Aluminium fluoride (AIF3) Aluminium Smelter Aluminium smelter bath (50%) Waste refractories (50%) Fluorine process flow in aluminium smelters  Aluminium fluoride is an essential chemical for aluminium smelting  50% of fluorine leaves aluminium smelting process as aluminium smelter bath by-product Source: S.J. Lindsay, Bath generation and management, 10th Australasian Aluminium Smelting Technology Conference, 2011 Increasing global surplus of aluminium smelter bath  New smelter requires bath to commence operations  So new smelter creates short term bath demand, but contributes to long term bath surplus Clean fluorine chemical production: producing industrial chemicals from aluminium smelter by-product ASX:ABX Exemplary demonstration of circular economy 11 ALCORE PROCESS Low technical risk  Process is adaptation of existing commercial process to produce hydrogen fluoride from fluorspar Acidspar Sulfuric acid Hydrogenfluoride Acidspar process Calcium sulfate Aluminium smelter bath Sulfuric acid Hydrogenfluoride ALCORE process Aluminium- sodium sulfate ASX:ABX 12 SIGNIFICANT COST ADVANTAGE OF REPLACING FLUORSPAR WITH SMELTER BATH  ALCORE process produces same hydrogen fluoride product using a much lower cost feed material  Aluminium smelter bath is a good quality material (low impurities) Potential for significant profit margin A rare opportunity that is financially, strategically and environmentally attractive ASX:ABX 13 PATHWAY TO PRODUCTION: PROJECT DEVELOPMENT First plant planned for Bell Bay, Tasmania $3.15m Federal Government MMI grant1 2019-22 2023-24 2024-26 Critical process steps demonstrated2  Produce saleable hydrogen fluoride for evaluation by customers  Determine design and operating parameters for commercial plant ALCORE has first mover advantage Laboratory 300g bath NSW $2m (lab) Batch Pilot 3kg bath NSW $50k Continuous Pilot 20kg/h bath Tasmania $3m Commercial Stage 1 200kg/h bath 860t/y HF Tasmania $16m Commercial Stage 2 4,400kg/h bath 20,000t/y HF Tasmania $90m Achieved target fluorine recovery3 1ABX ASX Announcement, 26 June 2025 2ABX ASX Announcement, 24 October 2022 3ABX ASX Announcement, 4 June 2024   ASX:ABX 14 ALCORE TECHNOLOGY CENTRE – BELL BAY, TASMANIA Bell Bay Aluminium Smelter  Leased from Rio Tinto at reduced rate1  $1m conditional loan from Tasmanian Government2  Pilot plant under construction3  Environmental Effects Report submitted  First equipment will be delivered in May  Commissioning expected to commence late Q3 2026 1ABX ASX Announcement, 15 January 2025 2ABX ASX Announcement, 19 December2024 3ABX ASX Announcement, 27 March 2026 3D Model Location Facility ALCORE Pilot Plant ASX:ABX 15 CONTINUOUS PILOT PLANT OVERVIEW 15  Nominal 20–40 kg/hr. bath throughput  Continuous operation mode  Modular Design  Oleum production  Bath reaction and HF production  Gas scrubbing and absorption  Utilities  Material and waste storage  High flexibility for optimisation  Products with market demand (35%HF acid & metal sulfates)  Engineered to stringent safety standards ASX:ABX ANTICIPATED PROJECT MILESTONES Project Activities 2026 2027 2028 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Laboratory Studies Continuous Pilot Plant Engineering Studies Environmental Approvals Commercial Stage 1 Plant Commercial Stage 2 Plant 16 ASX:ABX 17 COMMERCIAL SCALE – REGIONAL SIGNIFICANCE Fluoropolymer Adv. F Material Refrigerants F - organics F – waste LiPF6 HF Line F - Electrolyte Jin Tang Fluorine Industrial Park (4000 ha.) Alcore Boost Regional Growth  Creates high-skill jobs and technical training  Stimulates demands for local engineering, logistics and supply chain services  Positions Bell Bay as a long-term fluorine industrial hub BBAMZ Tasmania’s largest industrial zone, 2500 ha. ASX:ABX 18 INVESTMENT PROPOSITION Low-cost hydrogen fluoride production using aluminium smelter bath by-product  Will enable hydrogen fluoride production in Australia, to reduce 100% reliance on imports Team Experienced and capable Strongly increasing demand for fluorine Batteries Supply shortage No hydrogen fluoride produced in Australia. Limited global fluorspar resources New fluorine source available at low cost Aluminium smelter by-product Chemical process is low risk Adaptation of existing commercial process Pathway to production First mover globally: at pilot plant stage ASX:ABX 19 www.abxgroup.com.au Suite 2, Level 11, 385 Bourke St Melbourne VIC 3000 Australia Phone: +61 3 9692 7222 E: investors@abxgroup.com.au Mark Cooksey Managing Director and CEO E: mcooksey@abxgroup.com.au