Trigg Expands Antimony Holdings to 1,026km² with High-Grade Bukkulla Mine

Strategic Expansion into High-Grade Antimony Territory

Trigg Minerals Limited (ASX: TMG) has taken a significant step in broadening its antimony exploration footprint in New South Wales by acquiring the historic Bukkulla Mine and applying for additional exploration licences in the Nundle Goldfield and Tia regions. This move increases Trigg’s regional portfolio to over 1,000 square kilometres, reinforcing its position in a mineral-rich corridor known for high-grade antimony and gold deposits.

The Bukkulla Mine, a past producer, is notable for its exceptionally high antimony grades historically exceeding 25% Sb, with recent rock chip sampling confirming values around 23% Sb. These grades are well above typical antimony deposits, highlighting the potential for economically significant mineralisation. The deposit’s geochemistry, featuring elevated arsenic, silver, and gold, aligns with the Hillgrove-type antimony systems that have proven productive in the region.

Unlocking the Nundle Goldfield’s Untapped Potential

Beyond Bukkulla, Trigg’s licence applications include the northern extension of the Nundle Goldfield, a historically important gold-producing area in NSW. While gold has been the primary focus historically, the presence of past-producing antimony mines such as Fogarty’s, Woodley’s, and Stanning’s within the goldfield suggests a strong prospectivity for high-grade antimony mineralisation. Notably, modern exploration techniques have yet to be applied in this area, presenting a compelling opportunity for discovery.

The Nundle Goldfield’s geological setting within the New England Fold Belt, particularly along the Peel Fault, is conducive to epizonal orogenic mineralisation where antimony and gold often coexist. Trigg’s exploration strategy aims to leverage this geological context through systematic geophysical surveys, geochemical sampling, and drilling to delineate new mineralised zones.

Comprehensive Exploration Roadmap and Portfolio Synergies

Trigg’s recent applications, ELA 6870 (Bukkulla), ELA 6871 (North Nundle), and ELA 6872 (Tia), complement its existing substantial portfolio, which includes the Wild Cattle Creek resource at the Achilles Project, estimated at nearly 30,000 tonnes of antimony. The Tia Project, focused along the Tia Fault, also offers underexplored opportunities with multiple deep leads and reef gold occurrences.

Executive Chairman Tim Morrison emphasised the strategic nature of this expansion, noting the company’s commitment to unlocking shareholder value by targeting regions with proven mineralisation potential. The planned exploration programs will focus on testing depth extensions of the Bukkulla workings and identifying high-priority targets within the Nundle Goldfield, potentially adding significant value to Trigg’s asset base.

Historical Data and Modern Exploration Synergy

The announcement relies on historical data sourced from the New South Wales Geological Survey, including rock chip sampling and mining records dating back to the 19th century. While these data confirm the presence of high-grade antimony mineralisation, no modern drilling or systematic exploration has been conducted on the new tenements. Trigg’s approach will integrate these historical insights with contemporary exploration technologies to refine targets and assess resource potential.

Given the high grades reported and the geological similarities to other productive antimony-gold systems in the New England Orogen, the Bukkulla and Nundle projects represent promising frontiers for Trigg Minerals. The company’s methodical exploration plans could unlock new discoveries that enhance its standing in the critical minerals sector.