Catalina Resources (ASX:CTN) mobilises for Phase 1 drilling across Evanston and Yerilgee

Catalina Resources has moved into the final stages of preparation for its Phase 1 drilling program across the Evanston and Yerilgee gold projects, with activities progressing in line with the operational schedule.

The company has confirmed that drilling will commence on 1 December 2025 following the establishment of site infrastructure, completion of earthworks, and execution of a drilling services agreement.

Highlights

• Phase 1 drilling to commence 1 December 2025, totalling approximately 7,500 metres of reverse circulation and aircore drilling across priority targets.

• Heritage assessments completed, allowing the program to proceed in full regulatory compliance.

• Deployment of operational facilities, field support contingents and oversight personnel completed.

• Earthworks and access routes nearing completion at initial drill locations.

• McKay Drilling contracted, with mobilisation underway.

• Program designed to test structural corridors, surface geochemical anomalies and extensions to previously identified mineralised zones.

Catalina’s operational update outlines significant progress in advancing its dual-project strategy in the Central Yilgarn, reflected in the steady transition from preparatory works to imminent drilling across key prospects.

The company has completed the infrastructure required to support the first phase of drilling and has progressed access preparation around the initial drill pads to ensure operational readiness.

The completion of heritage assessments, which cover all proposed drill positions, has enabled the program to move forward in accordance with regulatory requirements.

The Phase 1 program comprises approximately 7,500 metres of reverse circulation and aircore drilling, with the work plan structured to assess priority structural settings and coherent surface anomalies identified through earlier exploration.

The operational maps on pages 2 to 6 of the ASX release detail drill positions across the Leghorn, Viper South and T1B prospects at Evanston, along with T8, Chicken Little and Snowflake at Yerilgee.

These areas contain a series of previously reported intersections, including 48 metres at 0.67 grams per tonne gold from 27 metres at Evanston and 17 metres at 4.1 grams per tonne gold from 53 metres at Yerilgee, which provide the technical rationale for further evaluation.

Catalina Resources notes that the program is designed to test lateral and vertical continuity of mineralisation, with geological mapping and soil geochemistry defining several prospects as immediate targets.

Operational sequencing will follow a structured progression informed by logistics, access, environmental considerations and heritage outcomes.

The company’s Executive Director, Ross Cotton, states:

“Phase 1 builds on a strong body of results that have already demonstrated the prospectivity of the Central Yilgarn. We are now moving into the highest priority structural and geochemical targets defined to date, and the alignment of datasets gives us confidence in the potential for meaningful advancement. This is an important stage for Catalina as we look to convert early success into a clearer view of the system’s scale and continuity.”

Catalina’s upcoming drilling marks a material shift from preparatory field activity to systematic subsurface testing across two project areas with established near surface gold intersections.

With drilling scheduled to begin within days and sample dispatch planned on a progressive basis, results from the program will provide a clearer indication of the continuity and scale of mineralised systems within these tenements.

The integration of heritage compliance, contractor mobilisation and defined drill targets positions the company for a data rich period as exploration advances across the Evanston and Yerilgee projects.

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