Cobar Basin Optimisation Update

On 8 August 2025, we were pleased to report that the Tertiary Ball Mill Project and the Crushing and Materials Handling Expansion Projects, which form part of Cobar Basin Optimisation, were approved by our Board of Directors.

The announcement confirms that all Cobar Basin Optimisation Projects have been approved. Collectively, the Projects will support the effective throughput capacity expansion of our Peak Processing Plant to 1.1–1.2Mtpa to enable the processing of all Federation Mine ore with the Peak South Mine and New Cobar (including Great Cobar) mined ores.

Managing Director and Chief Executive Officer, Bryan Quinn spoke about the projects and how Cobar Basin Optimisation supports the Company’s future growth programs.

“The approval of these projects is very exciting for Aurelia. They will facilitate the expansion of the Peak Processing Plant and assist our ramp up plan to deliver 40kt copper equivalent tonnes in FY28,” Bryan explained.

“Importantly, the capital required to deliver these projects will be funded through a combination of operating cash flow and existing liquidity. At just $16.4 million for a 400ktpa (50%) throughput expansion, these are highly capital-efficient projects. Their development reflects the strength of the technical work completed to uncover and harness the latent capacity of our Peak Processing Plant.

“Our disciplined focus on cost management has resulted in an approved capital investment that aligns with our FY26 guidance and is significantly lower than the $20–25 million range outlined in the original Cobar Basin Optimisation Scoping Study.

“I’d like to thank entire Aurelia projects team for their outstanding work in progressing the Cobar Basin Optimisation projects to this point. We now look forward to getting on with the job of bringing these projects to life to deliver long-term value to our shareholders and continue to grow our Company,” Bryan concluded.

The full ASX announcement is available here: Cobar Basin Optimisation Update.