Catalina Resources Ltd (CTN.AX) Exploration Expanded at Beasley Creek and EIS Funding Secured

Perth, April 28, 2026 AEST (ABN Newswire) - Catalina Resources Limited (ASX:CTN) provided an updated exploration summary for its 100%-owned Beasley Creek Project where ongoing integrated geological, geochemical and geophysical interpretation has materially advanced the exploration model.

HIGHLIGHTS

- Ongoing geological review has expanded the scale and strike extent of the exploration opportunity at Beasley Creek through confirmation of Flamingo Target as part of a broader, structurally controlled Cu-Au hydrothermal corridor

- Two additional Cu-Au priority targets identified along the Mithgoondy Shear Zone - Golden Hand and King Brown - with a further silver anomalous target defined at Black Head

- Initial drill collars defined at Flamingo, with additional priority targets progressing toward drill readiness as historic soil sampling results are integrated with the current geological interpretation

- First-pass RC drilling targeted for July-August 2026, following completion of current surface exploration program

- Up to $180,000 in co-funding awarded under the West Australian State Government's Exploration Incentive Scheme (EIS) for drilling at Flamingo

The work has demonstrated that Flamingo forms part of a broader, structurally controlled multielement hydrothermal corridor, with mineralisation extending beyond the original target area into structurally and stratigraphically analogous positions along the Mithgoondy Shear Zone.

Building on this interpretation, an additional priority target - Golden Hand - has been defined by coherent geochemical anomalism and similar geological characteristics to Flamingo with supportive geophysical signatures (Figure 1, Figure 2, Figure 6, Figure 8 and Table 1*). The King Brown target is defined along a faulted unconformity contact, with linear arsenic anomalism and associated Cu-Au-Ag signatures supporting a structurally focused mineralised corridor. Collectively, establishing a growing pipeline of drill-ready opportunities.

In parallel, the Company has been awarded up to $180,000 in co-funding under the Western Australian Government's Exploration Incentive Scheme (EIS) for drilling at Flamingo, supporting planned drilling and reducing the cost of initial drill testing, with heritage clearance activities progressing.

Executive Director, Ross Cotton, commented:

"Catalina has materially expanded the exploration opportunity at Beasley Creek, with Flamingo now interpreted as part of a broader, structurally controlled Cu-Au hydrothermal corridor along the Mithgoondy Shear Zone.

The identification of additional targets Golden Hand and King Brown demonstrate the potential for multiple mineralised centres within this system and establishes a strong pipeline of targets progressing toward drill testing.

With initial drill collars defined at Flamingo and further targets advancing through ongoing soil sampling and geological assessment, the Company is progressing toward first-pass drilling in the coming months, supported by the award of up to $180,000 in EIS co-funding for drilling."

Beasley Creek Project Background

The Beasley Creek Project is located in the Pilbara region of Western Australia and is centred on the Mithgoondy Shear Zone (figure 3*), a prospective structural corridor for hydrothermal mineralisation.

A recent desktop review of the Beasley Creek Project has further refined the Company's understanding of the project geology. This follows the original independent review that confirmed the gold potential of the project area, and subsequent technical studies which expanded this interpretation to include a structurally controlled Cu-Au hydrothermal system at the Flamingo Target.

Based on this evolving geological understanding, Catalina has progressed a systematic exploration program integrating geological, geochemical and geophysical datasets. This work has advanced from initial target generation to further refinement, resulting in the delineation of multiple priority targets and the commencement of a soil sampling program focussed on two priority targets Flamingo and Golden Hand.

In parallel, the Company has been successful in its application for the Western Australian Government's Exploration Incentive Scheme (EIS) with $180,000 in co-funding being granted to support planned drilling and is progressing heritage clearance.

The current program represents the next phase of exploration, with initial drill collars defined at Flamingo and additional targets Golden Hand, King Brown and Black Head to be progressed toward drill readiness.

Flamingo Target - Refined Geological Interpretation

The Flamingo Target is located within the Mithgoondy Shear Zone, coincident with a well-defined east west trending zone of shearing and faulting (Figure 3*).

Key technical features include:

- A lens-shaped arsenic anomaly with an approximate 1.6 km strike length, developed within a broader zinc halo, consistent with zoned hydrothermal alteration systems (Figure 4*).

- Discrete copper, gold and silver geochemical cores occur within the zinc-arsenic halo, suggesting metal zonation and potential proximal fluid pathways (Figure 4*).

- A NW-SE trending dolerite dyke traverses the target area, intersecting the dominant east-west structural grain, with sub-parallel NW-SE oriented faults mapped in association with the dyke.

- RTP-TMI aeromagnetics indicates the Flamingo Target area lies within a relatively low magnetic domain bounded by sub parallel east-west trending magnetic ridges. Within the target area, subdued to moderate magnetic features display internal complexity and divergence relative to the adjacent high magnetic units (Figure 5*).

- Comparable magnetic signatures interpreted to be the same prospective unit occur approximately 900m east and 1.3 km west of the main Flamingo target, indicating potential strike continuity.

- Aerial photographic interpretation highlights a strong east-west trending structural grain and good outcrop, with sandy (arenaceous) and shaly (argillaceous) schists overlying the target and ferruginous units exposed immediately to the north (Figure 6*).

The copper-gold-silver core of mineralisation at Flamingo appears to coincide with a lens of arenaceous schist, developed near the contact with ferruginous units. Historical rock chip sampling

identified ironstone and quartz veining, interpreted ex-sulphide textures and local malachite staining which provides further evidence for hydrothermal mineralisation.

While the precise style of mineralisation remains under evaluation, Flamingo is considered a high priority drill target under investigation for volcanic-hydrothermal and structurally remobilised mineralisation models.

Golden Hand Target - Structurally Displaced Extension

The Golden Hand Target is located approximately 2.2 km southeast of Flamingo, within the same Mithgoondy Shear Zone. The target shares comparable structural/stratigraphic architecture and geochemical signatures and is interpreted to be a possible structurally displaced segment of the Flamingo mineralised system produced by folding and left-lateral shearing, highlighting the potential for repetition along the corridor.

Key technical features include:

- A broad arsenic halo enclosing zinc and copper cores, with a more extensive gold footprint relative to Flamingo (Figure 7*).

- Gold and silver anomalies extend westward from the core anomaly, following a linear trend that may reflect structural or stratigraphic controls on hydrothermal activity during later remobilisation of minerals during Proterozoic orogenesis.

- RTP-TMI aeromagnetic image shows the Golden Hand Target, positioned adjacent to a prominent east-west trending magnetic ridge. Within the target area, the magnetic response is subdued to moderate and locally disrupted, contrasting with the more continuous magnetic fabric to the south (Figure 5*).

- Aerial photographic interpretation shows an iron formation and associated arenaceous schist unit like those observed at the Flamingo. The geological setting suggests Golden Hand may represent a structurally offset segment along the same prospective corridor (Figure 8*).
Field mapping is planned to identify lithologies, alteration assemblages, and potential gossanous outcrops in advance of drill planning.

King Brown Target - Unconformity Related Mineralisation

The King Brown Target is defined along the unconformity contact between rocks of the Mithgoondy Shear Zone and adjacent Archean granites.

Key technical features include:

- A linear arsenic anomaly following the unconformity. The halo contains cores with elevated values of copper, gold, zinc and silver in the historic soil samples (Figure 9).

- RTP-TMI aeromagnetic imagery indicates that the King Brown Target area coincides with a linear moderate to high magnetic feature marking the unconformity contact. The magnetic ridge displays local faulted offset patterns which are expressed along the outcrop of the contact (Figure 5*).

- The unconformity is interpreted to represent a favourable rheological and chemical boundary for hydrothermal fluid flow and mineral deposition.
Field work will involve traversing and rock chip sampling focused on the targets identified from the mapping and the magnetic data.

Black Head Target - Silver Anomalism

The Black Head Target is defined by isolated silver anomalies located approximately 500 m north of a trend of historic gold nugget discoveries in the northern part of EL 47/3490 (Figure 10*).

These anomalies are spatially associated with a gossanous and manganiferous coarse-clastic unit outcropping near the upper contact of the Hardy Sandstone. The unit is interpreted to be a potential hydrothermal fluid conduit, which hosts remobilised silver from an unknown primary source.

RTP-TMI aeromagnetics highlights the Black Head Target area as being located within a broad, relatively low to moderate magnetic domain between laterally continuous east-west-trending magnetic ridges (Figure 5*).

Notably, previous GSWA studies2 identified silver within gold nuggets collected from the broader area, supporting a genetic link between silver and gold mineralisation.

The silver anomalism at Black Head will be followed-up using mapping from aerial photographs, field traversing and rock chip sampling.

Strategic Implications

The updated interpretation at Beasley Creek reflects a progression from a single target focus at Flamingo to a broader structurally controlled system along the Mithgoondy Shear Zone.

The identification of additional targets at Golden Hand, King Brown and Black Head provides multiple areas for further evaluation within this framework, supported by consistent geological, geochemical and geophysical characteristics.

The current program is structured to progress these targets through staged surface exploration and drill testing, with Flamingo representing the most advanced target and additional targets to be refined through ongoing soil sampling and geological interpretation.

NEXT STEPS

Beasley Creek Project

The Company has advanced a staged exploration program aimed at refining targets and prioritising drilling:

- Analysis of approximately 300 recently collected soil samples across the Flamingo and Golden Hand targets to refine geochemical footprints.

- Reconnaissance field geological mapping across Flamingo, Golden Hand, King Brown and Black Head to validate interpretations and refine drill collar positioning at priority targets.

- Finalise Heritage Clearances

- Planned first-pass RC drilling at identified targets (July / August 2026)

ADDITIONAL UPDATES

Breakaway Dam and Central Yilgarn Projects

In addition to the Beasley Creek Project the Company continues to advance its Breakaway Dam and Central Yilgarn Projects.

- Central Yilgarn - Gold Project

Between December 2025 and February 2026 extensive RC drilling was conducted across the Evanston and Yerilgee project areas. Analysis and interpretation of the results is underway, with a further update to be provided once this process is complete.

- Breakaway Dam - Copper-rich VMS

In March the company executed a drilling program designed to test conductor thickness and continuity within priority DHEM targets. The program resulted in approximately 1,600 metres drilling being completed along with further DHEM. Analysis and interpretation of the results is underway, with a further update to be provided once this process is complete.

*To view tables and figures, please visit:
https://abnnewswire.net/lnk/QRJ161U9

About Catalina Resources Ltd

Catalina Resources Ltd (ASX:CTN) is a mineral exploration company focused on discovering and advancing gold and multi-commodity projects in tier-one jurisdictions. Backed by a technically experienced team with deep industry knowledge, Catalina is committed to creating value through focused exploration across highly prospective and underexplored regions in Western Australia.

The company's core assets are located in the Central Yilgarn and Laverton regions, two of the most historically productive and geologically endowed gold provinces in the country. Both projects have demonstrated the potential to host significant mineralisation, with early-stage drilling already delivering promising results.

  

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