Announcement PDF ASX Announcement 28 September 2026 Share Purchase Plan Offer Opens ABx Group Limited (ASX: ABX) (ABx or the Company) confirms that the ABX Share Purchase Plan (SPP Offer) opens today. Attached is copy of the SPP Offer Letter sent to each holder of fully paid ordinary shares who, as at the record date of 7.00pm (AEDT) on Wednesday, 16 September 2026 had a registered address in Australia and New Zealand (and who otherwise meet certain other conditions as set out in the Prospectus) (Eligible Shareholder). A copy of the Prospectus and Target Market Determination is available for download at https://abxgroup.com.au/. Eligible Shareholders who have provided an email address will be sent an email communication. Eligible Shareholders who have not provided an email address will be sent an SPP Offer Letter via post. The SPP Offer is expected to close at 5.00 pm (AEST) on Friday, 23 October 2026 (unless extended, withdrawn or closed early by the Company). ~ ENDS ~ For more 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 This announcement was authorised by the Managing Director & CEO. About Abx Group Limited ABx Group Limited (ABx) is a uniquely positioned Australian company delivering materials for a 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. X 9999999991 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 ASX: ABx Monday, 28 September 2026 Dear Shareholder Share Purchase Plan – Letter to Eligible Shareholders On behalf of the Board of ABx Group Limited (ASX: ABX) (ABx or Company), I am pleased to invite eligible shareholders to participate in ABX's Share Purchase Plan (SPP). The SPP is available to shareholders with a registered address in Australia or New Zealand as at 7.00pm (AEST) on Wednesday, 16 September 2026 (Record Date). The SPP follows the successful placement announced on 17 September 2026, which raised approximately $2.1 million (before costs) through the issue of shares at $0.031 per share together with one attaching option for every two shares issued. Under the SPP, eligible shareholders may apply for up to $30,000 worth of new fully paid ordinary shares in the Company. The issue price of the SPP Shares will be the lower of:  $0.031 per Share; and  95% of the volume weighted average price of Shares traded on ASX over the five trading days up to and including the SPP Closing Date, rounded down to the nearest $0.001. Accordingly, shareholders will not know the final issue price at the time they submit their application. This pricing mechanism ensures Eligible Shareholders have the opportunity to participate at the same or a lower price than investors participating in the Placement. Free-Attaching Options For every two SPP Shares issued, participating shareholders will also receive one free attaching option exercisable at $0.046 per option and expiring three years from the date of issue, subject to shareholder approval at the proposed General Meeting to be held on 29 October 2026. The options will not be quoted on ASX. Directors Joycelyn Morton and Mark Cooksey have indicated their intention to participate in the SPP for up to the maximum amount permitted under the SPP. Use of Funds Funds raised from the SPP and Placement will be used to advance the Company's Deep Leads rare earths project in Tasmania, continue development of the ALCORE fluorine chemicals business and pilot plant, progress near-term bauxite opportunities and provide additional working capital. Phone: (within Australia) 1300 850 505 (outside Australia) 61 3 9415 4000 Web: www.computersharecas.com.au/ABXoffer For all enquiries: I ND T 000001 ABX MR SAM SAMPLE 123 SAMPLE STREET SAMPLETOWN VIC 3000 916CR_0_Sample_CA/000001/000001 *L000001* page 2 ABx is progressing three priority growth initiatives: the development of a heavy rare earths business supplying Western markets, the ALCORE clean fluorine chemicals project at Bell Bay, Tasmania, and near- term bauxite production opportunities supplying the aluminium, cement and fertiliser sectors. Key Features  Eligible shareholders may apply for parcels from $1,000 up to $30,000 worth of SPP Shares at the issue price.  Participation is entirely voluntary.  SPP Shares will rank equally with existing fully paid ordinary shares.  The SPP is not transferable.  Applications and payment must be received by 5.00pm (AEDT) on Friday, 23 October 2026, unless the timetable is varied by the Company. A Prospectus in relation to the SPP was lodged with ASX today (Prospectus). A copy of the Prospectus along with information about how to apply under the SPP via BPAY® is available at www.computersharecas.com.au/ABXoffer. If you have any questions in relation to how to participate in the SPP, please contact the Registry from 8.30am to 5.30pm (Sydney time) Monday to Friday on 1300 850 505 (callers within Australia) or +61 3 9415 4000 (callers outside Australia) or consult your financial or other professional adviser. Terms Summary Unless otherwise defined, capitalised terms used in this letter have the meaning given in the Prospectus. Availability of the Share Purchase Plan The SPP is available to all Shareholders registered on the Record Date whose registered address is in Australia or New Zealand, provided they are not in the United States or acting for the account or benefit of a person in the United States (Eligible Shareholders). The SPP is not being extended to any Shareholders with an address outside Australia and New Zealand. The SPP is also being offered to Eligible Shareholders who are Custodians or nominees and who wish to apply for SPP Shares on behalf of certain Eligible Beneficiaries. Custodians and nominees are not required to participate on behalf of their Eligible Beneficiaries. Custodians and nominees may choose whether or not to extend the SPP to their Eligible Beneficiaries. Key Dates Record Date 7.00pm (AEST), Wednesday 16 September 2026 Offer Opens Monday 28 September 2026 Closing Date 5.00pm (AEDT), Friday 23 October 2026 EGM Thursday 29 October 2026 SPP Results Announcement Friday 30 October 2026 Commencement of Trading of SPP Shares Monday 2 November 2026 *Dates are indicative only and subject to change page 3 Actions required by Eligible Shareholders Eligible Shareholders may participate in the SPP by applying online at www.computersharecas.com.au/ABXoffer or by completing a personalised Application Form. To obtain your personalised Application Form, please contact the Registry on 1300 850 505 (callers within Australia) or +61 3 9415 4000 (callers outside Australia). Applications for SPP Shares can only be made by Eligible Shareholders invited to make an application under the SPP Offer. ABx reserves the right to close the SPP early or extend the SPP in its discretion. Participation is entirely voluntary. Before you decide whether to participate in the SPP, ABx recommends you seek independent financial advice from your stockbroker, accountant, or other professional adviser. Your right to participate in the SPP is not transferable. As noted above, you may obtain a copy of the Prospectus along with information about how to apply under the SPP at www.computersharecas.com.au/ABXoffer. If you are unable to access the website online you can request a copy of the Prospectus and the personalised Application Form to be posted or emailed to you by contacting the Registry on 1300 850 505 (callers within Australia) or +61 3 9415 4000 (callers outside Australia). If you have any questions in relation to how to participate in the SPP, please contact the Registry. Scale back The amount that each Eligible Shareholder can apply for under the SPP is capped at $30,000. The Company is seeking to raise up to $2,000,000 under the SPP and reserves the right to accept oversubscriptions. If applications exceed the amount sought to be raised, the Directors may scale back applications in their absolute discretion. Any scale back is expected to be undertaken on a pro rata equitable basis having regard to the number of Shares held by applicants and such other factors as the Directors consider appropriate. If a scale back occurs, surplus application monies will be refunded without interest as soon as practicable. We encourage shareholders to use the online application and payment methods wherever possible. If you intend to participate, we strongly recommend submitting your application and payment online, as postal delivery times may result in applications being received after the Closing Date. Items you send by mail may not reach the Registry before the Closing Date, which will lead to your application being rejected. Yours sincerely Joycelyn Morton Chair 916CR_0_Sample_CA/000001/000002 *I00000101*