Green360 Technologies has landed its first named commercial customer for Eco-Clay, signing a non-binding MOU with Holcim Australia to supply up to 4,800 tonnes over 12 months, marking a key step in commercialising its low-carbon cement replacement.
- Non-binding MOU with Holcim for Eco-Clay supply
- Up to 4,800 tonnes over 12 months targeted
- First commercial production completed at Bacchus Marsh
- Binding supply agreement expected within 90 days
- Milestones reached include tolling deal and market validation
Holcim Partnership Validates Eco-Clay Commercial Potential
Green360 Technologies (ASX:GT3) has taken a significant stride towards commercialising its Eco-Clay product by securing a non-binding Memorandum of Understanding (MOU) with Holcim (Australia), a subsidiary of one of the world’s largest building materials groups. The agreement targets the supply of up to 4,800 tonnes of Eco-Clay over the next year to Holcim’s concrete operations in Victoria, making Holcim Green360’s first named commercial customer following the completion of initial production runs.
This deal is a notable endorsement from a major industry player actively pursuing low-carbon construction solutions, as Holcim has committed to net-zero emissions by 2050 and is expanding its ECOPact low-carbon concrete range. The partnership reflects both the quality of Eco-Clay and the robustness of the supply chain Green360 has established with Calix Limited’s Bacchus Marsh facility, which began commercial production in April 2026.
Rapid Commercialisation Milestones Achieved
Green360’s progress in recent months has been swift and methodical. The company signed a binding Toll Treatment Agreement with Calix in March 2026, providing a capital-light production pathway with capacity for up to 30,000 tonnes annually. Within weeks, Green360 completed its first commercial production run of 150 tonnes and has now produced over 600 tonnes for field validation with concrete suppliers across Victoria.
The MOU with Holcim follows these developments and is expected to transition into a binding supply agreement within 90 days. The initial 12-month supply period under the MOU is based on fixed pricing and includes technical compliance standards, underscoring the product’s readiness for commercial deployment. This sequence of milestones highlights Green360’s ability to move from development to market supply rapidly, an uncommon feat in the building materials sector.
Eco-Clay’s Market and Environmental Credentials
Eco-Clay is a calcined kaolinite (metakaolin) material derived from Green360’s proprietary kaolin by-products, transformed through calcination at approximately 750°C. This process requires significantly less energy than traditional Portland cement manufacture, which heats raw materials to around 1,450°C, resulting in a substantially lower carbon footprint. Eco-Clay can replace up to 40% of Portland cement in concrete mixes while maintaining performance, offering a scalable and sustainable alternative aligned with circular economy principles.
The product’s potential has been independently verified by the University of Melbourne, and its application in shotcrete mixes with up to 50% cement replacement has been demonstrated in recent trials, bolstering its credentials in infrastructure and civil construction markets. This technical validation complements the commercial momentum Green360 is building, positioning Eco-Clay as a credible competitor in the growing low-carbon cement sector.
Next Steps and Commercial Outlook
With Holcim’s MOU in place, Green360 is poised to convert this into a binding supply agreement, which would solidify a stable revenue stream and enhance market confidence. The company’s capital-light model via Calix’s tolling arrangement reduces upfront investment risk, allowing Green360 to scale production in line with demand. The Victorian market, where Holcim operates extensively, serves as a strategic launchpad for broader national adoption.
As Green360 advances, the industry will be watching how Holcim integrates Eco-Clay into its product range and the extent to which this partnership catalyses further commercial agreements. The low-carbon cement market remains competitive and evolving, with regulatory pressures and sustainability targets driving demand for innovative materials.
Green360’s recent commercial production run and the earlier tolling deal with Calix underpin this latest development, illustrating a clear trajectory from product validation to market entry. How quickly Green360 can expand beyond Victoria and scale up production will be critical to watch in the coming months.
Bottom Line?
Green360’s MOU with Holcim marks a crucial commercial validation, but the transition to a binding agreement and broader market adoption will determine Eco-Clay’s impact on Australia’s low-carbon cement landscape.
Questions in the middle?
- Will Green360 secure binding supply agreements beyond Holcim soon?
- How will Holcim’s adoption of Eco-Clay influence competitor strategies?
- Can Green360 scale production efficiently to meet growing demand?