Announcement PDF 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 ASX RELEASE 13 October 2026 Carbonxt Secures Expanded Reworld Contract HIGHLIGHTS • Carbonxt has secured an expanded agreement to supply Powdered Activated Carbon (PAC) to Reworld, a leading US provider of sustainable waste solutions • Four additional Reworld facilities transition to Carbonxt from 1 January 2027, increasing annual PAC supply to Reworld by approximately 25% • FY27 revenue now expected to be at least 40% higher than FY26 • New mill to double production capacity at Black Birch to approximately 12,000 tons and add redundancy, with installation expected in Q3FY27 • Replacement of kiln parts and testing continues at Kentucky, with the final replacement parts expected to be delivered on-site by the kiln contractor this week. The Company will provide an update following the conclusion of this testing work. Carbonxt Group Limited (ASX: CG1) (Carbonxt or the Company) is pleased to announce that it has secured an expandedagreement withReworld, agloballeader in sustainable waste solutions anda long-standing Carbonxt customer, for the supply of premium Powdered Activated Carbon (PAC) from the Company’s Black Birch facility in Swainsboro, Georgia. Expanded Reworld Agreement Under the expanded agreement, four additional Reworld US waste-to-energy facilities will transition to Carbonxt from 1 January 2027, increasing its annual PAC supply to Reworld by approximately 25%. The additional volumes will run for the remaining term of the existing contract, to December 2028. The 2027 revenue contribution is expected to be approximately $1.0 million. Gross margins on the additional volume are expected to be at or around current Black Birch performance. Carbonxt’s PAC is used in Reworld’s thermomechanical treatment facilities to remove mercury, dioxins and furans from emissions. Black Birch produces its PAC from wood-based material, and the product's sustainable origins has been a key continuing factor in Reworld’s decision to expand its supply relationship with the Company. Full-scale deliveries under that contract commenced in October 2024, supplying 17 Reworld waste-to-energy plants across the US (refer ASX Announcement 17 October 2024). Carbonxt is also a member of Reworld’s Preferred Supplier Program. FY27 Revenue Outlook On 15 September 2026, Carbonxt advised that, together with increased volumes from a second pellet customer, the increased WPS order means it expects FY27 revenue to be more than 33% higher than FY26 (refer ASX Announcement 15 September 2026). With the expanded Reworld volumes and other additional customer commitments, Carbonxt now expects FY27 revenue to be at least 40% higher than FY26. CARBONXT.COM As with the 15 September outlook, this expectation comes entirely from the Company’s existing business, assumes an AUD/USD exchange rate of 0.71 and does not include any contribution from the Kentucky facility, which remains additional upside. Carbonxt Managing Director Warren Murphy commented: “Reworld’s decision to expand our supply relationship again is a strong endorsement of the performance of our sustainable PAC products and the reliability of our team at Black Birch. Together with the increased WPS order and higher volumes from a second pellet customer, this growth comes entirely from our existing business, ahead of the commissioning of our Kentucky facility. The new mill gives us the capacityto deliverthese additional volumes, adds redundancy at BlackBirch,and positions us to meet further demand from our customers.” Additional Capacity at Black Birch To support the expandedvolumes andgrowing demand for itsPAC products,Carbonxt is installing an additional mill at the Black Birch facility. Installation is expected to be completed over the next two to three months. On completion, the new mill is expected to double production capacity at Black Birch to approximately 12,000 tons and provide redundancy across the facility’s operations. Carbonxt will fund the approximately $1.1 million investment from existing cash flow. All amounts are in AUD unless otherwise stated. - ENDS - This announcement has been authorised for release by the Board of Directors. Enquiries Warren Murphy Mark Flynn Managing Director | Carbonxt Group Limited Investor Relations | Bantry Advisors P +61 413 841 216 P +61 416 068 733 E w.murphy@carbonxt.com E mark.flynn@bantryadvisors.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. About Reworld Reworld™ is a leader in sustainable waste solutions, providing innovative and environmentally responsible services to a global community. Reworld™ is committed to advancing zero waste initiatives and supporting sustainability goals through state-of-the-art technologies that reimagine, reduce, reuse, recycle, recover and renew. For more information, visit www.reworldwaste.com. This announcement contains forward-looking statements, including in relation to expected FY27 revenue. Those statements are based on the assumptions set out above and are subject to risks and uncertainties, many of which CARBONXT.COM are outside the Company’s control. Actual results may differ materially from those expressed or implied. The Company will update the market in accordance with its continuous disclosure obligations.