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Lake Hope Scoping Study

Impact Minerals Limited (ASX:IPT) is pleased to announce the positive results of a Scoping Study based on realistic production and capital expenditure estimates for the company’s Lake Hope High Purity Alumina (HPA) Project, located 500 km southeast of Perth in the Tier 1 jurisdiction of Western Australia.


The Lake Hope project contains a significant alumina (Al2O3) resource, which could become a major global supplier of High Purity Alumina (HPA) because of the unique nature of the deposit that allows very cost-effective mining and processing.

This Scoping Study indicates that, as far as Impact can ascertain from published data, the Lake Hope project could be one of, if not the lowest-cost producer of HPA globally, possibly by a significant margin of up to 50%.

Potential to become a significant producer of HPA with steady-state production of 10,000 tonnes per annum following a two-year ramp-up.
Low capital costs compared to peers driven by the unique nature of the clay deposit at Lake Hope.Low operating cost and high margins due to the deposit size, zero strip ratio, high- grade mineralisation at surface, no on-site beneficiation required, advantageous kinetics of the metallurgical process and by-product credits.Natural ESG benefits include probably considerably reduced CO2 emissions compared to incumbent producers.Very favourable market fundamentals with HPA deemed a Critical Mineral in Australia and many other countries.Forecast compound annual growth rate of about 20% for the HPA and related products market over the next decade driven by expansion in the battery and LED sectors.
The study of HPA is based on a conservative commodity price estimate of US$22,000 per tonne compared to recent forecasts of more than US$25,000 per tonne from 2025 onwards.

Impact Minerals’ Managing Director, Dr Mike Jones, said, “This Scoping Study demonstrates the world-class potential of the Lake Hope Project and supports what we first thought was possible when we came across it and the work already done by Roland Gotthard and the Playa One team”.

“If you are playing in the industrial minerals space, at least one of four things has to be true about your mine otherwise you will not make it through the market cycle: the deposit has to be either the biggest, have the highest grade, be the first to market or, preferably, be the lowest cost producer. The unique characteristics of the Lake Hope deposit, both in terms of mining and processing, look like they could possibly deliver HPA at the lowest cost globally by a significant margin”.

“Even though we are only at the Scoping Study stage, with all its inherent uncertainties, the financial model demonstrates the world-class economics of the project, which has an NPV of more than A$1 billion, very large operating margins and significant after-tax earnings of A$174 million per year. The ability to deliver sub-US$4,000 per tonne HPA is an extraordinary competitive advantage that Impact will continue to leverage in the current Preliminary Feasibility Study, due for completion in 2024.”



Impact Minerals Limited (ASX:IPT) is pleased to publish the results of a Scoping Study into a series of development options for the Lake Hope High Purity Alumina (HPA) Project located 500 km east of Perth in the Tier 1 jurisdiction of Western Australia. The Study comprises the results of preliminary metallurgical, engineering and logistical studies into the economic viability of the Lake Hope project.

HPA is now listed as a Critical Mineral in Australia, the US and Europe and is an essential mineral required for the ongoing decarbonisation of the world’s energy market.

The Scoping Study is reported in accordance with the JORC 2012 Code and ASX Listing Rules and with a level of accuracy of +/-30% commensurate with this level of study. The Study justifies the project progressing to a Preliminary Feasibility Study, which is well underway (ASX Release October 18th 2023).

The Study is based on work completed by Playa One Pty Ltd before Impact’s involvement in the project and work completed by Impact since acquiring the right to earn an 80% interest in the project earlier in 2023 (ASX Release March 21st 2023). Impact can earn its 80% interest by completing the PFS.

Click here for the full ASX Release

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