Tambourah Metals Unveils High-Grade Gold Upgrades at Beatty Park South

Context and Exploration Highlights

Tambourah Metals Limited (ASX – TMB) has released encouraging assay results from its recent aircore drilling program at Beatty Park South, part of the expansive Bryah Gold Project in Western Australia. The company’s 1m re-sampling of previously reported 4m composite samples has not only confirmed but locally upgraded gold grades within weathered ultramafic rocks, underscoring the prospectivity of this emerging gold anomaly.

The drilling campaign, completed in October 2025, comprised 88 holes totaling approximately 3,300 meters. Initial 4m composite samples identified anomalous gold mineralisation, which was then followed by detailed 1m sampling to refine the understanding of grade distribution. This approach revealed standout intercepts such as 1m at 24.2 grams per tonne (g/t) gold from 32 meters in hole BPAC059, significantly higher than the previous composite result of 1.18 g/t over 4m.

Geological Significance and Mineralisation

The gold mineralisation at Beatty Park South is hosted within supergene weathered and semi-oxidised ultramafic lithologies of the Narracoota Formation. The high-grade zones appear to form a sub-horizontal blanket near surface, with evidence suggesting potential deeper feeder structures yet to be fully tested. Notably, the high-grade core is centred around discovery holes BPAC016 and BPAC028, with the anomaly extending over 330 meters along strike.

Additional re-sampling confirmed supergene enrichment in several holes at the northern end of the anomaly, including 1m at 22.9 g/t gold from 4m in BPAC087. These results indicate a broader halo of lower-grade mineralisation (+0.1 g/t Au) surrounding the high-grade intercepts, which could represent a significant exploration target pending further drilling.

Next Steps and Strategic Outlook

Tambourah Metals is actively processing data from a recently completed high-resolution SAM geophysical survey covering a 2km by 1km area at Beatty Park. This geophysical interpretation, combined with pending soil assay results, is expected to refine structural models and guide future drilling targets. The company has secured Program of Work approvals for initial reverse circulation (RC) drilling and is progressing heritage reviews with traditional owners, reflecting a responsible approach to exploration.

With tenure consolidated through recent applications covering extensions to the prospective Narracoota Formation, Tambourah is well positioned to advance the project. The combination of upgraded assay results, geophysical insights, and planned drilling programs sets the stage for potentially defining a significant gold resource in this underexplored region.

Broader Implications

These results reinforce Tambourah Metals’ strategy of targeting gold and critical minerals in established yet underexplored districts. The Bryah Gold Project’s growing footprint of high-grade mineralisation could attract further investor interest and potentially underpin future development opportunities. However, the true geometry and continuity of mineralisation remain to be confirmed through ongoing exploration.