Announcement PDF ASX RELEASE 1 September 2025 Non-renounceable pro-rata entitlement offer Despatch of letter to ineligible shareholders Carbonxt Group Ltd (ASX: CG1) (Carbonxt or the Company) on 22 August 2025 announced a nonrenounceable pro-rata entitlement offer. The Entitlement Offer is a non-renounceable pro-rata entitlement offer on the basis of one (1) Loyalty Option for every six (6) Shares held and will be made to shareholders recorded on the Company’s share register as holding Shares at 7.00pm (Sydney time) on Wednesday, 27 August 2025 (Record Date) and have a registered address in Australia or New Zealand (Eligible Shareholders). Eligible Shareholders will be able to subscribe to Loyalty Options at an issue price of $0.01 each, with each option exercisable at $0.07 per share three (3) years from date of issue. Attached is a letter despatched by Carbonxt today to all shareholders in the Company who are ineligible to participate in the Offer. This announcement has been authorised for release by the Board of Directors. Enquiries Warren Murphy Mark Flynn Managing Director | Carbonxt Limited P +61 413 841 216 Investor Relations | irX Advisors P +61 416 068 733 E w.murphy@carbonxt.com E mark.flynn@irxadvisors.com About Carbonxt Carbonxt (ASX:CG1) is a cleantech company that develops, and markets specialised Activated Carbon products, focused on the capture of contaminants in industrial processes that emit substantial amounts of harmful pollutants. The Company produces and manufactures Powdered Activated Carbon and Activated Carbon pellets for use in industrial air purification, wastewater treatment and other liquid and gas phase markets. Carbonxt Group Limited | Level 37, 180 George Street, Sydney NSW 2000 ASX: CG1 | E info@cglimited.com.au | P +61(0) 413 841 216 CARBONXT.COM 1 September 2025 Dear Shareholder Non-Renounceable Entitlement Offer - Notification to Ineligible Shareholders I refer to the fully underwritten non-renounceable pro-rata entitlement offer (Entitlement Offer) announced by Carbonxt Group Limited ACN 097 247 464 (ASX: CG1) (the Company or Carbonxt) on 22 August 2025, The prospectus for the Offer has been lodged with the ASX and is available on the ASX website (www.asx.com.au) and the Company’s website (http://www.cglimited.com/). The Entitlement Offer is a non-renounceable pro-rata entitlement offer on the basis of one (1) Loyalty Option for every six (6) Shares held and will be made to shareholders recorded on the Company’s share register as holding Shares at 7.00pm (Sydney time) on Wednesday, 27 August 2025 (Record Date) and have a registered address in Australia or New Zealand (Eligible Shareholders). Eligible Shareholders will be able to subscribe to Loyalty Options at an issue price of $0.01 each, with each option exercisable at $0.07 per share three (3) years from date of issue. This letter is to inform you about the Entitlement Offer and to explain why you will not be able to subscribe for New Shares under the Entitlement Offer. This letter is not an offer to issue New Shares to you, nor an invitation for you to apply for New Shares. You are not required to do anything in response to this letter. The Company has decided that it is unreasonable to make offers under the Entitlement Offer to shareholders recorded on the Company's share register on the Record Date with a registered address outside Australia or New Zealand (Ineligible Shareholders), having regard to the number of Ineligible Shareholders, their holdings and the compliance costs required to offer the shares under the Offer to Ineligible Shareholders. Accordingly, in compliance with ASX Listing Rule 7.7.1(b) and section 9A(3) of the Corporations Act 2001 (Cth), the Company wishes to advise that you are an Ineligible Shareholder and that it will not be extending the Offer to you. If you have any additional questions regarding the Offer, please contact Laura Newell, Company Secretary by email at cosec@sourceservices.com.au or your professional advisor. Otherwise, on behalf of the board of directors and management of the Company, we thank you for your continued support of the Company. Yours sincerely Carbonxt Group Limited Matthew Driscoll Chairman CARBONXT.COM