Catalina Resources (ASX:CTN) advances Breakaway Dam VMS case while progressing Central Yilgarn gold drilling

Catalina Resources has moved to formalise the next phase of exploration at its Breakaway Dam Project in Western Australia, following drilling and geophysical work that the company states has confirmed the presence of a copper rich Volcanogenic Massive Sulphide system.

The update also includes early results from Phase 1 drilling at the Leghorn Prospect within the Central Yilgarn Project, providing additional geological context across the company’s broader exploration portfolio.

Highlights

• Follow up drilling program finalised at Breakaway Dam, comprising approximately 3,000 m of RC drilling targeting high priority EM conductors and extensions to the Central Zone.

• Drilling and DHEM have defined approximately 700 m of sulphide bearing strike with mineralised horizons averaging about 10 m estimated true width.

• Reported copper intersections include 9.2 m at 0.48% Cu, 1.47 m at 1.97% Cu and 4.2 m at 0.32% Cu, with associated zinc in several intervals.

• Multiple strong downhole EM conductors identified, including at least one plate that remains untested.

• Phase 1 RC drilling at Leghorn returned gold intersections including 1 m at 2.93 g/t Au and 2 m at 1.01 g/t Au, confirming the interpreted mineralisation model.

The Breakaway Dam Project is located approximately 17 km east of Menzies and has become a near term focus following a 2025 drilling and geophysical campaign.

According to the company, the work confirms a well developed VMS architecture, characterised by copper dominant sulphide mineralisation, metal zoning and a compressed massive sulphide horizon influenced by later structural and metamorphic overprint.

Drilling to date has intersected mineralisation across multiple holes, ranging from narrower higher grade lenses to broader moderate grade zones, with peak grades and widths not coinciding.

Importantly for exploration planning, DHEM surveys have identified several strong conductors, one of which remains only partially tested.

Catalina has structured its next phase of drilling to prioritise these targets, while also testing for grade continuity beyond the currently defined EM plates and evaluating areas beneath shallow historical drilling.

The program is expected to proceed under existing Programme of Work approvals, with heritage clearances already completed, and the company has stated it intends to commence drilling once rigs are secured.

Land consolidation has progressed in parallel, with additional tenements acquired and further applications lodged over adjacent unpegged ground.

The stated objective is to secure a contiguous land position aligned with the interpreted VMS system, providing flexibility to evaluate the broader mineralised corridor as exploration advances.

“The discovery of a VMS system at our newly acquired Breakaway Dam Project is critically important to our exploration strategy, as it indicates the potential presence of high value, high grade, multi commodity ore deposits,”

executive director Ross Cotton said.

Away from Breakaway Dam, Catalina also reported initial results from Phase 1 RC drilling at the Leghorn Prospect, part of the Evanston Project within the Central Yilgarn Gold District.

Eight RC holes for 1,521 m tested along strike extensions of previously identified gold mineralisation within a mafic host sequence.

Intersections such as 1 m at 2.93 g/t Au from end of hole and 2 m at 1.01 g/t Au have been interpreted by the company as confirming the orientation and continuity of the mineralised system, informing ongoing targeting across Evanston and Yerilgee.

In an industry context where early stage explorers are increasingly expected to demonstrate technical discipline alongside land position scale, Catalina’s update outlines a methodical approach grounded in geophysics, staged drilling and tenure consolidation.

The coming drill results from Breakaway Dam and pending assays across Central Yilgarn are set to provide further data points as the company continues to refine its geological models and prioritise follow up work.

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