Chalice Mining's Gonneville Project Gains Momentum with Metallurgical Breakthroughs and ASX200 Ambitions

May 06, 2025 02:16 PM AEST | By Team Kalkine Media

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Chalice Mining's Gonneville Project Gains Momentum with Metallurgical Breakthroughs and ASX200 Ambitions — Image source: Shutterstock

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Highlights

Improved metal recoveries boost project viability

New iron by-product identified in latest test work

Gonneville pre-feasibility study progresses strongly

Chalice Mining (ASX:CHN) has taken another significant step forward in developing its Gonneville critical minerals project in Western Australia, unveiling new flowsheet improvements that have delivered a notable boost in metal recoveries. This latest metallurgical progress marks a key milestone in enhancing the project’s economic and operational outlook, positioning it more competitively in the global critical minerals sector.

The updated processing flowsheet, which focuses on flotation and CIL leach processes, has shown significant recovery enhancements. These technical gains are expected to further support the development of a bulk open-pit mine at Gonneville, with a notably low strip ratio and strong efficiency, even at conservative metals prices. In a project that is already considered world-class, these refinements could materially enhance margins and long-term value.

Further supporting the project’s upside is the identification of a potential new iron by-product. This discovery could pave the way for an additional revenue stream and support Chalice’s efforts to extract maximum value from its polymetallic deposit. The company is currently exploring avenues to commercialise the by-product, which would add another dimension to Gonneville’s already diverse mineral profile.

This breakthrough follows previous metallurgical advancements announced in February 2025, reinforcing confidence in the flowsheet’s design. All sulphide mine composites have now been tested, confirming improved overall recoveries across the board. Chalice believes these results strengthen the economics previously laid out in its 2023 scoping study.

The pre-feasibility study (PFS) for Gonneville is now in an advanced stage. The company is finalising plant capital and operating cost estimates while working to quantify the new iron by-product and determine related infrastructure requirements. Environmental modelling, based on a preferred staged development approach, is progressing well, with regulatory submissions expected early next year.

Strong support from various government levels has further bolstered optimism for timely approvals, underlining the project’s strategic significance within the Australian critical minerals landscape.

This positive momentum aligns Chalice Mining with broader investment themes in Australia, especially as the company strengthens its foothold in sectors drawing interest from those tracking ASX dividend stocks. Gonneville’s continued progress also bolsters Chalice’s long-term positioning within the ASX200, reflecting the growing importance of critical minerals in national and global markets.

With technical risks diminishing and economic metrics improving, the Gonneville project is fast shaping up as a standout development opportunity in Australia’s critical minerals landscape.

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