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Highlights
- $1.165B NPV outlined in Lake Hope pre-feasibility study
- 10,000tpa HPA production target after 2-year ramp-up
- Potential among lowest-cost global HPA producers
Impact Minerals (ASX:IPT) has unveiled a compelling pre-feasibility study (PFS) for its $259 million Lake Hope high-purity alumina (HPA) project in Western Australia, setting the stage for long-term value creation and scalability in the clean tech supply chain.
The study reveals a projected steady-state production of 10,000 tonnes per annum (tpa) of 4N HPA after a two-year ramp-up period. Notably, the operation spans an initial 33-year mine life, positioning Impact as a potential global leader in low-cost, low-carbon HPA output via a vertically integrated extraction and refining model.
According to the PFS, the project carries a forecast net present value (NPV) of $1.165 billion, underpinned by a maiden ore reserve of 1.7 million tonnes (Mt) grading 26% aluminium oxide—amounting to 450,000 tonnes of contained alumina. The operating expenditure stands at US$5,860/t, with further reductions possible through by-product revenue from sulphate of potash (SOP), potentially bringing costs below US$4,500/t.
This strong economic profile is amplified by the project's environmental and process efficiencies. Lake Hope’s natural feedstock and simplified process flow allow for the production of 4N-grade HPA without relying on complex reagents or emissions-intensive techniques. These advantages are expected to provide a substantial margin cushion and competitive edge amid a rapidly expanding HPA market.
Managing Director Dr Mike Jones commented on the significance of the findings, emphasizing Lake Hope's potential to become one of the most cost-efficient HPA producers globally—by a margin of at least 30%.
With the PFS complete, Impact will now progress to a definitive feasibility study (DFS). This next phase includes constructing a pilot plant to generate bulk HPA samples that will support commercial discussions on future offtake partnerships.
The company is also deepening its strategic positioning through an increased stake (80%) in Playa One, which owns the Lake Hope assets, and integrating proprietary HiPurA processing technology via a joint venture with Alluminous. This integration could enhance efficiencies and accelerate timelines by up to two years.
Notably, the project is supported by a $2.87 million grant from the Australian federal government, in collaboration with CPC Engineering and Edith Cowan University’s Mineral Recovery Research Centre.
While Impact Minerals does not currently feature in the ASX300 stocks, its developments at Lake Hope may place it on the radar for inclusion should the HPA strategy continue to deliver economic and technological breakthroughs.
