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 18 August 2026 Kentucky Kiln and NewCarbon Investment HIGHLIGHTS • All replacement parts for the Kentucky kiln have arrived on-site and are being individually re-tested prior to installation • The kiln manufacturer will be on-site the week of 24 August 2026 to finalise the kiln electrical works with Kentucky Carbon Processing (KCP); all associated wiring is being replaced as a precaution • KCP expect the kiln construction to be completed in the current quarter • A second US$250,000 has been invested in NewCarbon Processing, LLC since 30 June 2026, taking Carbonxt's ownership interest to 49.4% and total investment to US$9.75 million Carbonxt Group Limited (ASX: CG1) (Carbonxt or the Company) provides the following update on the construction of its Kentucky activated carbon facility,an additional investment in NewCarbon Processing, LLC (NewCarbon). Kentucky Kiln Construction Update All replacement parts required for the kiln at the Company's Kentucky facility have now arrived on-site, as previously advised in the Company’s June 2026 Quarterly Activities Report released on 31 July 2026. Each part is individually retested at a dedicated on-site testing station before installation. The kiln manufacturer will be on-site the week of 24 August 2026 to finalise the kiln electrical works with KCP and confirm they function as intended. All wiring associated with these parts is also being replaced as a precaution. The Company expects kiln construction to be completed in the September 2026 quarter. Additional Investment in NewCarbon Processing, LLC Subsequent to 30 June 2026, the Company has made a further investment of US$250,000 in NewCarbon, its jointly owned Kentucky entity established with KCP. This is in addition to the US$250,000 investment disclosed in the Company’s quarterly activities report of 31 July 2026. This investment increases Carbonxt's ownership interest in NewCarbon to 49.4%, bringing the Company's total investment to date to US$9.75 million. This announcement has been authorised for release by the Board of Directors. - ENDS - Enquiries Warren Murphy Mark Flynn Managing Director | Carbonxt 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 CARBONXT.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.