Green360 Secures 30,000 Tonnes Capacity to Produce Eco-Clay This Year

Green360 and Calix Join Forces to Commercialise Eco-Clay

Green360 Technologies Limited (ASX:GT3) has taken a significant stride in the commercialisation of its innovative low-carbon cement replacement product, Eco-Clay, by signing a binding toll treatment agreement with Calix Limited (ASX:CXL). This partnership grants Green360 access to Calix’s vertical flash calciner facility at Bacchus Marsh, Victoria, enabling the production of up to 30,000 tonnes per annum of Eco-Clay without the need for heavy capital investment.

Eco-Clay, a high-reactivity metakaolin derived from kaolin by-products, offers a compelling alternative to traditional Portland cement. By replacing up to 40% of Portland cement in concrete mixes, Eco-Clay not only enhances strength and durability but also significantly reduces carbon emissions associated with concrete production. The product’s credentials are bolstered by independent verification from the University of Melbourne, confirming its status as a Grade 1 pozzolan under Australian standards.

A Capital-Light Pathway to Market Entry

The agreement with Calix represents a capital-light route for Green360 to scale production rapidly and meet growing demand for sustainable construction materials. Rather than investing in a dedicated calcination facility upfront, Green360 will transport kaolin from its Pittong operations to Calix’s Bacchus Marsh plant for processing. The arrangement requires a modest capital outlay of approximately $300,000 to upgrade Calix’s facility for large-scale logistics and commercial deliveries.

Green360 Executive Chairman Aaron Banks emphasised the milestone nature of the deal, highlighting that the company has already demonstrated the ability to produce and deliver commercial quantities of Eco-Clay to a national concrete supplier. With this agreement, Green360 is poised to convert positive trial feedback into formal commercial sales, expected to commence in the first half of 2026.

Strategic Market Positioning and Future Growth

The two-year agreement includes options to extend for an additional two years and features no minimum volume commitments, offering Green360 flexibility as it builds market demand. The company is actively negotiating supply agreements with concrete manufacturers, particularly targeting the Melbourne market initially.

Looking ahead, Green360 plans to construct and operate its own calciner at the Pittong site to support future scale-up, contingent on sufficient demand. This phased approach allows the company to validate market acceptance and revenue streams before committing to larger capital expenditures.

Eco-Clay’s production process also embodies circular economy principles by utilising kaolin tailings and residues, transforming industrial by-products into valuable low-carbon construction materials. This innovation aligns with broader industry and governmental efforts to decarbonise the building materials sector.

Implications for Australia’s Concrete Industry

The partnership between Green360 and Calix signals a growing momentum in sustainable building materials within Australia. By providing a commercially viable, lower-emission alternative to traditional cement, Eco-Clay could play a pivotal role in reducing the carbon footprint of concrete, a major contributor to industrial emissions.

As Green360 moves from pilot production to commercial scale, the industry will be watching closely to see how quickly Eco-Clay gains traction among contractors, infrastructure projects, and concrete suppliers. The success of this venture could set a precedent for further innovation and adoption of low-carbon materials in construction.