Impact Minerals Advances HPA Strategy and Revives Broken Hill Exploration

Impact Minerals (ASX: IPT) reported progress across its high purity alumina (HPA) strategy and exploration portfolio during the December 2025 quarter, with development work advancing at Lake Hope and downstream commercialisation initiatives gaining momentum.

Work under a grant from the Cooperative Research Centres progressed the Lake Hope project, with successful bench-scale membrane crystallisation of potash by-product generated from Stage 1 of Impact’s patented HPA process.

Initial test work also commenced on solid residue from Stage 1 as a potential feedstock for the HiPurA process, expanding integration options between upstream ore processing and downstream HPA production.

Impact continued to assess the integration of Lake Hope with HiPurA assets acquired through its 50% interest in Alluminous, which the company believes could materially accelerate entry into the HPA market.

Alluminous-C4V Collaboration

Alluminous signed a technology collaboration agreement during the quarter with US-based battery innovator C4V to jointly develop and qualify HiPurA high purity alumina for advanced battery applications.

The collaboration provides independent cell testing and performance validation across battery components, with the objective of shortening development timelines and accelerating commercial qualification.

The agreement is non-exclusive and positions Alluminous, and by extension Impact, to access emerging battery-grade HPA markets in the US and other jurisdictions seeking secure non-Chinese supply.

Impact also agreed on terms with Kuniko to form a joint venture over the Commonwealth gold-silver-copper project in the Lachlan Fold Belt of New South Wales.

Under the agreement, Kuniko can earn up to a 70% interest by spending $3 million over four years, while Impact will be free-carried to a decision to mine—allowing it to retain long-term exposure to the project while prioritising capital allocation toward its HPA strategy.

Broken Hill Exploration Restarted

Impact announced the resumption of exploration at its 100%-owned Broken Hill project in response to higher metal prices, new internal exploration concepts, and renewed regional interest.

The company controls approximately 1,700 square kilometres of tenure surrounding the Broken Hill Line of Lode and considers the ground prospective for copper, magmatic nickel-copper-PGM sulphides, and silver-lead-zinc mineralisation.

A progressive review of historical data and drilling results continued during the quarter, including reassessment of high-grade PGM intercepts and identification of new channel-style targets to guide future work programs.

Impact ended the quarter with $3.37m in cash on hand to support its continued advancement of priority projects.