OUR PROJECTS
Regional resources.
National possibilities.
A platform for integrated biorefineries across Australia.
OUR FLAGSHIP PROJECT
STX Prime
Stage 1 of the Grainstone Australia Biorefinery
Transforming wheat and barley agricultural residues into sustainable aviation fuel and valuable co-products.
100 million litres / year
Target SAF nameplate capacity
Ethanol-to-jet
Conversion pathway
2029–2030
Completion target, subject to approvals
Feedstock Wheat and barley agricultural residues
Products Sustainable aviation fuel, HVO renewable diesel blendstock and carbon dioxide
Location Horsham, Victoria, Australia
Collaboration Growers, scientists, government, airlines and international partners
Phase FEED
Ownership Australian-majority owned and led
Project scope, capacity and timing remain subject to feasibility, approvals, financing and final investment decisions.
One platform. Possibilities across Australia.
Our flagship in Horsham leads a broader program of feasibility assessments across Australia’s grain-growing regions.
Indicative regions only. Markers are deliberately generalised and do not identify proposed sites or property boundaries. Future developments remain subject to feasibility assessment.
AN AUSTRALIAN DEVELOPMENT PIPELINE
An Australian platform.
A growing pipeline.
Our Horsham flagship leads a broader program of feasibility assessments across Australia’s grain-growing regions.
Indicative regions only. Markers do not identify proposed sites.
Energy security
Decarbonisation
Regional manufacturing
Grower value
Working co-operatively with growers to improve farm sustainability, profitability and resilience.
DEVELOPMENT PIPELINE
An Australian platform.
A growing pipeline.
STX Prime leads a broader program of feasibility assessments across Australia’s grain-growing regions.
Flagship development
Future potential projects
Flagship · STX Prime
Energy security
Decarbonisation
Regional manufacturing
Grower value
Working co-operatively with growers to improve farm sustainability, profitability and resilience.
Help shape Australia’s biorefinery future.
Grower expression of interest →
Introducing STX Prime