Impact (ASX:IPT) shows world-class CO2 credentials for Lake Hope HPA

Impact (ASX:IPT) shows world-class CO2 credentials for Lake Hope HPA

June 19, 2024 Off By Jack Baker

Impact Minerals’ preliminary study into carbon dioxide emissions has shown world-class credentials for high-purity alumina production from its Lake Hope project in the Western Australian South West region.

Direct Scope 1 and power-based Scope 2 CO2 emissions per tonne of HPA were similarly low for either a sulphate or low-temperature leach process, at significantly lower figures than incumbent processes and either on par or lower than emerging ones.

And in a future-looking 100 per cent-renewable energy scenario, Impact has defined its ability to create a zero-carbon product.

Most global production of CO2 currently comes from energy-heavy means producing significant waste products, but advancing technology is showing capability to produce a more emissions-friendly asset.

Impact purchased its stake in Lake Hope off Playa One, a company whose proprietary and patented sulphate process has produced HPA exceeding a 99.99% quality from the clays of Lake Hope at potentially cheaper costs than its global competitors.

Differing production scenarios are all being taken into consideration as Impact works on completing its prefeasibility study, as the company remains on track to be finished its PFS before year’s end.

Impact has appointed David English to help it finish off the study as it continues to optimise its processes, noting his achievement of near-record discovery-to-production times at De Grussa and Nova-Bollinger.

Baseline environmental surveys have shown Lake Hope’s alumina-rich clays are otherwise barren, with Impact saying mining would only leave a hole at most a couple of metres deep, for minimal environmental risk and post-mine rehabilitation.

Heritage approval has also been cleared, and while there is a lot of work to do and technical barriers to achieving a net-zero product, Impact is looking at a long stay in the South West after acquiring what it considers a transformational asset.

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