Catalina Resources (ASX:CTN) Confirms Gold Intersections in Central Yilgarn’s Viper Drilling

3 min read | February 18, 2026 12:14 PM AEDT | By Sonal Goyal

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Catalina Resources (ASX:CTN) Confirms Gold Intersections in Central Yilgarn’s Viper Drilling — Image source: Company Update

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Highlights

Phase 1 RC drilling at Viper intersected gold mineralisation hosted in mafic and BIF lithologies.

Assays returned intersections including 1m @ 2.45 g/t Au from 77m and 2m @ 1.16 g/t Au from 28m.

Geological interpretation indicates a north-west dipping mineralised sequence, guiding follow-up drill targeting.

Catalina Resources continues to advance exploration with further assays pending.

Catalina Resources Limited (ASX:CTN) has announced results from the Phase 1 reverse circulation (RC) drilling at the Viper Prospects, located within its Evanston Project in the Central Yilgarn Gold District in Western Australia. The program forms part of a broader ~10,000-metre RC and aircore (AC) campaign underway across the company’s Central Yilgarn tenure.

Initial assays from Viper North and Viper South indicate the presence of gold mineralisation associated with mafic rocks and banded iron formation (BIF).

Phase 1 Program Targets Viper North and South

At Viper, RC drilling campaign included 17 RC drill holes spanning 2,694m. Of these, three holes for 463m were drilled at Viper North, while 14 holes for 2,231m were completed at Viper South.

The campaign was designed to follow up on gold mineralisation identified in earlier aircore programs. Historical intercepts included

2m @ 0.95g/t Au
15m @ 1.5 g/t Au, incorporating 3m @ 6.7 g/t Au,
33m @ 0.3 g/t Au incorporating 3m @ 0.9 g/t Au

Current drilling is focused on testing the projected south-west strike extension of this mineralisation, which aligns with regional structural trends observed in nearby mines.

At Viper North, drilling focused on a broad soil anomaly that had seen limited testing. Assays for this area have now been received.

At Viper South, previous shallow AC and deeper rotary air blast drilling recorded anomalous gold values, with some holes ending in mineralisation. These results informed the design of the RC program, with partial assay results received and further results pending.

Significant Gold Intersections Confirmed

Drilling returned multiple intersections above 0.5 g/t Au. Notable results include:

1m @ 2.45 g/t Au from 77m (25EVRC002)
1m @ 1.60 g/t Au from 7m (26EVRC019)
2m @ 1.16 g/t Au from 28m (26EVRC020)
1m @ 1.43 g/t Au from 84m (26EVRC021)
1m @ 0.67 g/t Au from 9m (26EVRC023)

Drilling intersected a mafic lithological sequence comprising basalt, amphibolite and BIF units.

Geological Observations Inform Ongoing Targeting

Interpretation of drilling data indicates the mineralised sequence dips nearly 40 degrees to the north-west. This structural understanding forms a foundation for ongoing targeting and future drilling program.

The company highlighted that drilling results continue to validate the prospectivity of the Evanston Project, highlighting the potential for a structurally controlled, cohesive gold system within the Central Yilgarn tenure.

Assay results from other Phase 1 areas are pending and will be reported progressively following laboratory validation and geological interpretation.

The Phase 1 RC drilling program at the Viper Prospects has delivered gold intersections within a mafic and BIF sequence, contributing to the geological framework for the Evanston Project area. With additional assays pending from across the broader campaign, Catalina Resources continues to advance exploration across its Central Yilgarn tenure.

CTN shares were trading 1.19% higher at AUD 0.085 per share at the time of writing on 18 February 2026.

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