Cobra Resources Expands Rare Earths and Copper Footprint in South Australia

Cobra Resources has detailed first-half 2026 progress on its dual critical minerals strategy in South Australia. The company advanced drilling and metallurgical testing at both its Wudinna rare earths and Manna Hill copper-gold projects, while simultaneously refreshing its board leadership. This period marked a shift from initial exploration toward resource definition and early-stage development planning for both assets.

At the Wudinna site, the firm expanded its land position to over 3,200 square kilometers, significantly increasing its ionic rare earths exposure. Concurrently, at Manna Hill, reverse circulation drilling at the Blue Rose discovery yielded broad, shallow high-grade copper-gold sulphide intersections. These results triggered the formal exercise of the option to acquire the project, with subsequent diamond drilling aimed at testing depth extensions within a potential porphyry system.

Wudinna Land Expansion Supports ISR Development

The expansion of the Wudinna exploration license to more than 3,200 square kilometers provides a broader geological footprint for ionic rare earths extraction. Sonic core drilling at the Boland and Head prospects generated data supporting the continuity and scale required for a maiden mineral resource estimate. This data is critical for validating the site's potential as a low-cost controlled-aquifer in-situ recovery (ISR) operation.

Metallurgical and permeability results have strengthened the technical case for the proposed ISR method, which aims to minimize environmental disturbance by utilizing permeable palaeochannel sediments confined by impermeable clays. The company has engaged ERM to deliver the maiden mineral resource estimate, a necessary step before advancing permitting and engineering for a small-scale ISR production demonstration targeted for 2027.

Manna Hill Drilling Reveals Porphyry Potential

Drilling at the Blue Rose discovery at Manna Hill produced high-grade copper-gold sulphide intersections that are both broad and shallow. These initial findings prompted the company to exercise its option to acquire the project fully. Subsequent diamond drilling holes have extended the known sulphide mineralisation, revealing geological features indicative of a fertile porphyry system, although assays for these deeper extensions are still pending.

The identification of potential porphyry characteristics suggests a larger-scale copper-gold system within the Nackara Arc, supporting the target of shallow skarn and deeper porphyry mineralisation. This technical progress is supported by ongoing geophysics and drilling campaigns, which aim to define the vertical and lateral extent of the resource to support future development decisions.

Leadership Changes and Technical Partnerships

Cobra Resources replaced founding chair Greg Hancock with Andrew Michelmore, an experienced industry figure, as non-executive chairman. This leadership change coincides with the appointment of new senior staff in finance, technical, and exploration roles. These hires are intended to de-risk both projects and position the company as a differentiated critical-minerals player with exposure to rare earths and copper-gold.

The company has also advanced metallurgical programs with ANSTO to further refine processing methods for the Wudinna project. According to GN auto stocks/materials: rare earths, these technical advancements are part of a broader strategy to establish Cobra as a key supplier in the Western market for critical minerals, leveraging its low-cost ISR approach and diversified portfolio.