Greenvale Energy Enlists Australia’s Largest Bitumen Supplier for Alpha Road-Grade Oil Test
Key Takeaways
- Greenvale Energy has engaged SAMI Bitumen Technologies, Australia's largest bitumen supplier founded in 1978, to lead the final phase of Test Program 7 (TP7) for the Alpha Project.
- The Alpha Project holds a 28Mt Inferred Mineral Resource equivalent to 27.7 million barrels of synthetic oil equivalent, comprising Torbanite and Cannelite.
- SAMI's six-to-eight week program will assess two pathways: blending Alpha-derived material with conventional paving-grade bitumen, and additive-based modification targeting AS 2008 C-170 compliance.
- The preceding Technix phase did not achieve C-170 certification but identified resin-to-asphaltene balance as the key control variable, giving SAMI a defined technical brief rather than a blank slate.
- Material is currently in transit from New Zealand to SAMI's NSW facility, providing investors a clear near-term window for the next technical update within six to eight weeks of receipt.
Alpha Project test program enters final phase with Australia’s largest bitumen supplier
Greenvale Energy (ASX: GRV) has expanded the scope of Test Program 7 (TP7) and engaged SAMI Bitumen Technologies to lead the final development phase, commissioning Australia’s largest bitumen supplier to assess multiple commercial product opportunities from the Alpha Project’s 28Mt Inferred Mineral Resource. The resource, comprising Torbanite and Cannelite, is equivalent to 27.7 million barrels of synthetic oil equivalent. While the preceding Technix phase did not achieve C-170 bitumen certification, it generated technical data that now defines a clear foundation for SAMI’s six-to-eight week program.
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What the Technix program revealed — and why it matters for Alpha’s path forward
The Technix phase delivered methodical, scientifically grounded findings that narrow the remaining technical problem rather than leave it open-ended.
Key findings from the Technix phase
- High-shear mixing under pressure produced more uniform, consistent material, confirming the importance of this processing approach
- Viscosity increased through blending under pressure with high-speed mixing, but results did not meet C-170 specification
- An oxidation process further increased viscosity but caused excessive hardness and asphaltene clustering, ruling out this pathway
- Insufficient adhesion and elasticity were identified as the principal remaining technical challenges
- Resin-to-asphaltene balance was identified as the key control on product performance
- Crumb rubber was flagged as one potential pathway to improve adhesion and elasticity
Managing Director Alex Cheeseman
“While the Technix program has not resulted in a C-170 certification, the program has generated valuable technical information and demonstrated that Alpha-derived material responds positively to controlled distillation, compositional adjustment and high-shear processing.”
The Technix work was not wasted — it defined precisely what the next phase must address. SAMI now enters with a specific technical brief rather than a blank slate.
The Alpha Project bitumen milestone earlier in 2026 established the processing baseline that SAMI now builds on, with controlled distillation and compositional adjustment already confirmed as viable steps in the production pathway.
SAMI’s two-pathway development program explained
SAMI Bitumen Technologies was founded in 1978 and is the largest bitumen supplier in Australia, supplying the full range of bituminous products to the domestic roads industry. Its products are used in the construction of highways, bridges, runways, container terminals, and local roads. SAMI’s bitumen and asphalt laboratory is a leading facility in the region.
Two development pathways SAMI will assess
- Blending the Alpha-derived product with conventional paving-grade bitumen, with ratios adjusted based on product performance
- Modification using compatible additives and controlled laboratory blending, which may include compatibility assessment, controlled heating and mixing, rheological screening, and optimisation of formulation and processing conditions
What is AS 2008 paving-grade bitumen and why does C-170 matter?
AS 2008 is the Australian standard governing bitumen used in road construction, bridges, and runways. C-170 is the preferred viscosity grade within that standard, essentially the primary preferred benchmark targeted for the domestic road-surfacing supply chain, though alternative grades may also be viable.
Achieving C-170 certification would mean Alpha-derived material could enter an established, high-volume domestic market. SAMI will also assess alternative grades under AS 2008 if the material’s measured properties indicate a better commercial fit — a structured flexibility built into the program from the outset, not a fallback.
Australia remains dependent on international supply chains for bitumen and oil-derived products, which means a certified domestic source would carry both strategic and commercial significance.
| Stage | Activity | Objective | Target Standard | Timeline |
|---|---|---|---|---|
| 1 — Residue preparation & characterisation | Binder characterisation of Alpha-derived material | Establish baseline product properties | AS 2008 paving-grade bitumen | Commences upon receipt of material |
| 2 — Pathway A: Blending | Blend Alpha product with conventional paving-grade bitumen at adjusted ratios | Achieve compliant binder while maximising Alpha proportion | C-170 (preferred); alternate grades if indicated | Within six to eight week program |
| 3 — Pathway B: Modification | Compatible additive modification, rheological screening, formulation optimisation | Improve adhesion, elasticity, and overall compliance | C-170 (preferred); alternate grades if indicated | Within six to eight week program |
| 4 — Compliance assessment | Final testing of most promising candidate binder against selected AS 2008 specification | Formal compliance determination | C-170 or most appropriate alternate grade | Completion of six to eight week program |
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Why the Alpha Project remains strategically significant
The Alpha Project’s 28Mt Inferred Mineral Resource — equivalent to 27.7 million barrels of synthetic oil equivalent — positions it as one of the more substantive kerogen-style deposits under active development in Australia.
The broader market context supports the project’s long-term relevance. According to a Research and Markets report published in August 2026, the global market for kerogen-style deposits is projected to grow from US$3.58 billion in 2026 to US$5.51 billion by 2032, driven by energy-security priorities and demand for domestic fuels and industrial feedstocks. These figures are third-party projections and are not Greenvale’s own forecasts.
The Alpha tenement, MDL 330, covers 1,904.5 Ha in Queensland and is held by Alpha Resources Pty Ltd, a subsidiary of Greenvale. The current five-year term expires on 31 January 2027; the preceding renewal application was submitted in July 2021 and approved in July 2022, reflecting a consistent renewal history.
The near-term focus is the SAMI program. Material is currently in transit from New Zealand to SAMI’s research and development centre in New South Wales, with the program expected to take six to eight weeks once material is received — giving investors a defined near-term window for the next technical update.
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