Business · Companies · 7 hrs ago
GT3’s MKX offers a partial replacement for cement clinker
Green360 Technologies is selling MKX, a product intended to replace some of the clinker used in cement.
Clinker is the main ingredient in conventional cement, and making it uses large amounts of energy and produces carbon emissions.
MKX is made from processed kaolin clay and can replace up to 40% of traditional clinker, according to the company.
GT3 says the product can cut associated emissions by up to 30% without reducing concrete strength or durability.
Australia’s building costs are rising, while supplies of fly ash and steelmaking slag—materials often used to replace clinker—are under pressure.
GT3 has secured deals with Holcim and Eifers, but the available information does not give details of their terms or say what happens next.
Green360 Technologies says its MKX product can replace up to 40% of the clinker used in cement.
The company says MKX can reduce associated carbon emissions by up to 30% without compromising concrete strength or durability.
MKX is made by processing kaolin clay into metakaolin.
Traditional supplies of fly ash and blast-furnace slag are under pressure as coal-fired power stations close and steelmaking changes.
GT3 has landed deals with Holcim and Eifers as it expands MKX’s commercial presence.
- Who
- Green360 Technologies (GT3), which makes the MKX cement replacement product.
- What
- MKX can replace up to 40% of clinker, according to GT3. The company says it can cut associated emissions by up to 30%.
- When
- The article was published on 28 October 2026. The timing of the deals is not stated.
- Where
- Australia; the article highlights a supply challenge in Victoria.
- Why
- Traditional supplies of fly ash and blast-furnace slag are becoming harder to get, while demand for concrete remains high. MKX is presented as an alternative that can reduce clinker use and associated emissions.
This story does not have two clearly opposing sides.
This story does not have a timeline yet.
- Clinker replacement
- Up to 40%
- Associated emissions reduction
- Up to 30%
- MKX feedstock
- Kaolin clay, processed into metakaolin
- Victoria SCM requirement
- Around a million tonne
- GT3 deals
- Holcim and Eifers
What people are saying
Victoria needs somewhere around a million tonne of SCMs to produce concrete for the Victorian market, which is the second largest market, only slightly behind New South Wales
There’s no in-state solution.