Catalina Resources set to kick off drilling at Breakaway Dam copper project

• 2,400m RC drilling program scheduled to commence by end of month
• Program to test highest-priority DHEM conductor plates
• Also examining interpreted extensions to known copper mineralisation
• Interpreted mineralised strike expanded by approximately 70%

Catalina Resources (ASX:CTN) is on target to commence the next phase of exploration at its Breakaway Dam copper project south of Perth in WA by the end of this month.

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The approximately 2,400m reverse circulation (RC) drilling program has been designed following interpretation of geological observations, assay results and downhole electromagnetic (DHEM) surveys completed during Catalina’s March 2026 exploration campaign.

That work returned copper intersections of up to 1.9m at 2.17% copper, further confirming that the Breakaway Dam volcanogenic massive sulphide (VMS) system is copper-rich.

ED, Ross Cotton, said the DHEM surveys identified strong conductor responses in every drill hole, with subsequent modelling defining multiple on-hole and off-hole conductive plates that now represent high-priority drill targets.

“Catalina’s strategy is to build multiple pathways for shareholder value, and Breakaway Dam is rapidly emerging as one of them. The project broadens our exposure beyond gold, providing shareholders with a compelling copper opportunity that complements our broader portfolio,” he said.

“Each phase of exploration has expanded the mineralised system, refined our geological model and delivered increasingly compelling drill targets.

“This next phase of drilling is designed to build on that momentum by expanding the known mineralised system and progressing Breakaway Dam towards resource definition.”

Copper mineralisation has now been delineated over an interpreted strike length of approximately 1.2 kilometres, while historical drilling indicates mineralisation extends over up to 1.8 kilometres.

“Together, these results reinforce the interpretation of a broad VMS system and provide a strong technical basis for the next phase of drilling,” Mr Cotton told shareholders.

Breakaway Dam is interpreted to host a VMS system, supported by historical exploration and significantly advanced through Catalina’s recent drilling, geological interpretation and DHEM surveys.

Previous drilling confirmed copper sulphide mineralisation across the project, including historical intersections of 6.0m at 1.19% copper from 185m, including 1.0m at 3.86% copper from 186m, 8.7m at 0.48% copper from 181m, including 0.95m at 1.18% copper from 181m and 1.7m at 1.05% copper from 189m.

The 2026 drilling program represents the next stage in evaluating whether the known mineralisation has sufficient grade and volume to progress towards an Inferred JORC mineral resource.

CTN was steady at 4.7¢. Mkt cap $8.621M.

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