Green360 Signs $1-2M Supply Deal with Holcim for Low-Carbon Cement Product
Green360 Technologies has secured its first binding commercial supply agreement with Holcim Australia for up to 4,800 tonnes of its proprietary MKX-CC low-carbon cement replacement, marking a significant step from development to commercial sales amid tightening supplementary cementitious material supplies.
- First binding supply contract with Holcim for MKX-CC
- Up to 4,800 tonnes supplied over 12 months in Victoria
- Contract valued between $1 million and $2 million
- Validates MKX as a scalable alternative amid SCM shortages
- Plans for further commercial deals and facility scoping
Green360 Moves from Development to Commercial Supply
Green360 Technologies Limited (ASX:GT3) has crossed a critical commercial milestone, signing its first binding supply agreement with Holcim (Australia) Pty Ltd. The deal commits Green360 to supplying up to 4,800 tonnes of MKX-CC, its proprietary low-carbon calcined clay cement replacement, over an initial 12-month period. The contract is expected to generate between $1 million and $2 million in revenue, confirming the product's market acceptance and Green360’s transition from technology development to commercial execution.
Holcim Endorses MKX Amid Industry Supply Shifts
Holcim, a global heavyweight in construction materials with a strong Australian footprint, is Green360’s inaugural commercial customer for MKX. This endorsement follows extensive technical evaluation and positions MKX as a credible alternative to traditional supplementary cementitious materials (SCMs) like fly ash and blast furnace slag, whose supplies are tightening due to decarbonisation trends. Holcim’s Chief Executive George Agriogiannis highlighted the strategic value of calcined clay in reducing reliance on declining by-products, signalling a shift in industry sourcing.
Supply Chain and Production Milestones Achieved Swiftly
Green360’s commercial journey accelerated rapidly since March 2026, when it secured a toll treatment agreement with Calix Limited (ASX:CXL) for calcination capacity. By April, the company completed its first commercial production run at Calix’s Bacchus Marsh facility, producing over 600 tonnes of MKX distributed across Victoria for concrete validation. The Holcim agreement formalises terms previously outlined in a memorandum of understanding, cementing Green360’s capability to supply at commercial scale and meeting technical compliance standards.
Addressing Structural Shortages in Australia’s Concrete Industry
The Australian concrete sector faces a structural supply challenge as traditional SCMs become scarce. Fly ash and blast furnace slag, once plentiful industrial by-products, are declining due to power station retirements and cleaner steelmaking processes. Green360’s MKX product suite, including MKX-CC and MKX Ultra Fine, is designed to fill this gap with scalable, locally produced materials. This contract with Holcim is a tangible sign that the market is ready to embrace dedicated SCMs amid these industry shifts.
Looking Ahead: Expansion and Facility Development
Green360 plans to build on this momentum with ongoing commercial discussions with other concrete producers expected to unfold through the second half of 2026. Additionally, a scoping study slated for Q4 will explore the benefits of constructing a dedicated calcination facility adjacent to its Pittong kaolin operations, potentially enhancing scale efficiencies and supply security. How this will impact Green360’s market position and cost structure remains a key point to watch.
Bottom Line?
Green360’s binding deal with Holcim marks a pivotal step in commercialising MKX amid tightening SCM supplies, but scaling production and securing further contracts will be crucial to sustaining growth.
Questions in the middle?
- Will Green360 secure additional binding supply agreements beyond Holcim to expand market share?
- How will the planned dedicated calcination facility affect production costs and capacity?
- Can MKX maintain competitive pricing and technical standards as traditional SCM supplies continue to decline?
