Impact Minerals (ASX:IPT) - Scoping Study Cuts High-Purity Alumina Capital Costs

Interview with Dr. Mike Jones, MD of Impact Minerals Ltd.Our previous interview: https://www.cruxinvestor.com/posts/impact-minerals-asxipt-advancing-scoping-study-with-10x-throughput-breakthrough-in-hand-10564Recording date: 11th September 2026Impact Minerals (ASX:IPT) has spent the past three years repositioning from a conventional Australian exploration company into a twin-pathway high-purity alumina (HPA) developer, and the scoping study for Alluminous, the company's 50%-owned chemical-process technology in which it holds its stake alongside two US-based institutional co-investors, is the first independent test of the economics behind that pivot.The study, prepared by NewPro Consulting & Engineering Services, compared four development cases across Perth and the Houston area. Impact's preferred pathway stages a US Gulf Coast plant from 2,000 tonnes per annum (tpa) up to 4,000 tpa as customer qualification, offtake and funding mature, rather than committing to full capacity immediately. The case models a post-tax NPV at an 8% discount rate of A$518 million ($362.4 million), a 42.3% IRR, and a capital payback of roughly 3.8 years, on total installed capital of $74 million. Net operating costs, after crediting a saleable ammonium sulphate by-product, come in just under $9,000 per tonne. Management's central claim is capital efficiency: it puts listed peers Alpha HPA and Advanced Energy Minerals at roughly four to five times Alluminous's capital intensity per tonne of installed capacity, while operating costs remain broadly comparable.Alluminous sits alongside Lake Hope, Impact's 80%-owned flagship Western Australian project, which uses a different, natural lake-sediment feedstock and completed its own Pre-Feasibility Study in June 2025 - a standalone A$1.2 billion NPV case at a 10% discount rate with a 47.5% IRR. The two projects are run and owned independently, use different feedstocks and produce different by-products (Lake Hope yields sulphate of potash; Alluminous yields ammonium sulphate), but both compete for the same downstream battery, semiconductor and sapphire-glass markets. Lake Hope's naturally low uranium and thorium content - independently confirmed below 1 part per billion without a dedicated removal step - is pitched as a specific advantage for semiconductor-grade qualification, a hurdle competitors have typically had to engineer around.Both projects remain genuinely early-stage. The Alluminous scoping study carries a wide +50%/-30% cost accuracy band typical of FEL-0 order-of-magnitude estimates, and the study's authors note they relied on Alluminous-supplied data without independently verifying the underlying technology. The integrated process has not been demonstrated continuously at scale, batch testing has produced filtration challenges, and no binding customer offtake or project debt exists for either pathway - the model assumes 100% equity funding throughout. Near-term catalysts include converting the Perth pilot plant to continuous operation, further validation work with battery-technology partner C4V, a formal Texas Gulf Coast site-selection study, and the start of Lake Hope's own Definitive Feasibility Study in 2027. Impact closed a A$4.13 million entitlement offer on September 9th 2026, underscoring that further capital will likely be required as both projects advance toward construction decisions.View Impact Minerals' company profile: https://www.cruxinvestor.com/companies/impact-mineralsSign up for Crux Investor: https://cruxinvestor.com/subscribe