Green360 Technologies Limited (ASX:GT3) has reported significant progress across its low-carbon cement and concrete initiatives for the quarter ended September 30, 2025. The company strengthened its financial position, advanced metakaolin production capabilities, achieved a key milestone in low-carbon concrete performance, and enhanced its board with an appointment aligned to its sustainability strategy.
Highlights
- Cash: $3 million at September 30, 2025; a further $0.768 million (before costs) received in October from the August 2025 placement following shareholder approval.
- R&D tax incentive: FY25 application lodged, with an estimated $0.441 million refund expected in the December 2025 quarter.
- Metakaolin output: More than 500 tonnes produced across multiple kaolin feedstocks and calcining methods; samples prepared for major industry partners evaluating low-carbon cement and concrete mixes.
- Low-carbon concrete trial: A noise-wall panel was produced using GT3’s first proprietary low-carbon cement blend, incorporating 35% industrial by-product substitution for Portland cement. The mix achieved a 28-day compressive strength of 64 MPa, exceeding the 40 MPa design target.
- Board changes: Darren Hedley appointed non-executive director. Hedley is CEO of Permacast, Western Australia’s largest precast concrete manufacturer, supporting GT3’s low-carbon cement and concrete strategy.
Developing and commercialising low-carbon cement technology
During the September quarter, Green360 Technologies made strong progress in the development and commercialisation of its proprietary low-carbon cement technology. The company produced more than 500 tonnes of metakaolin using a range of kaolin feedstocks and calcining methods, enabling sample preparation for industry partners currently testing the material in low-carbon cement and concrete formulations.
Independent testing confirmed that Green360’s metakaolin ranks at the upper end of Australian quality benchmarks, while access to cost-efficient kaolin from existing settlement ponds places the company at the lower end of the global cost curve, enhancing competitiveness in the rapidly expanding low-carbon construction sector.
A major breakthrough was also achieved with the successful manufacture of a noise-wall panel using Green360’s first proprietary low-carbon cement blend. The formulation incorporated a 35% industrial by-product replacement for Portland cement and achieved a 28-day compressive strength of 64 MPa — well above the 40 MPa design target — while being demoulded within 24 hours. The demonstration, attended by major civil contractors, confirmed the blend’s suitability for commercial-scale production.
Over the past year, more than 9,000 data points and 200 laboratory tests have been compiled through evaluation at Permacast’s facilities, leading to the joint venture’s second commercial-scale product. Noise-wall panels, which are standardised and high-volume products used along highways to reduce residential noise, offer an ideal early commercial application for Green360’s low-carbon cement technology.
In parallel, the company continued advancing product development, market engagement, and offtake expansion from its Pittong operations. The introduction of metakaolin adds a valuable new revenue stream from by-products, complementing Green360’s existing kaolin production while supporting higher sales volumes, improved margins, and full utilisation of the Pittong plant’s capacity.
Together, these efforts strengthen the company’s position as a leading Australian producer of kaolin-based materials for the growing low-carbon construction market.