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Maiden drilling completed: Nine diamond drill holes totalling 906 metres across the Davis, Stewart and May prospects at the Gillham Antimony-Silver Project in Arkansas.
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First modern exploration: The program represents the first known modern subsurface test of the Gillham mineralised system beneath historic mine workings.
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Assay results expected November 2026: Samples have been dispatched for analysis of antimony, silver, gold, copper, lead and zinc, with results expected in late November 2026.
27 October 2026 – Perth, WA | Pantera Minerals (ASX: PFE | OTCQB: PTMLF) has completed its maiden diamond drilling program at the Gillham Antimony-Silver Project in southwest Arkansas, marking the first known modern subsurface exploration of the historic mineralised system as the company moves towards its first set of drilling assay results.
The program comprised nine diamond drill holes totalling 906 metres across the Davis, Stewart and May prospects, targeting potential extensions of previously identified high-grade antimony, silver and polymetallic mineralisation beneath historic mine workings.
Core samples have been dispatched for laboratory analysis, with results expected in late November 2026. The assays will provide Pantera with its first modern drilling data to evaluate the mineralised system at depth and help determine future exploration priorities across the broader project.
Gillham forms part of Pantera's strategy to apply modern exploration techniques to historically mineralised and underexplored districts in the United States, with a particular focus on critical minerals.
Antimony is designated as a critical mineral in the US because of its importance across industrial, defence and energy supply chains, placing projects such as Gillham within the country's broader focus on critical minerals supply security.
The drilling program, completed on 16 October 2026, represents the first known modern test of the Gillham system beneath the historic Davis, Stewart and May mines.
All nine holes have been logged, surveyed and cemented, with the drilling rig demobilised following completion of the program. No recordable safety incidents occurred.
Samples have been sent to ALS USA in Nevada for multi-element analysis covering antimony, silver, gold, copper, lead and zinc.
While no assay results have yet been received, the drilling and structural data collected during the program will help Pantera assess the geological features controlling mineralisation and evaluate the effectiveness of the drilling orientations tested.
The results will also inform exploration priorities across Gillham's broader pipeline of more than 18 historical antimony and silver workings.
Pantera will now focus on receiving, validating and interpreting the assay results, expected in late November 2026, alongside completing a drilling close-out report and updating its geological model.
The findings will guide the ranking of additional exploration targets and inform the company's allocation of exploration capital across Gillham and its other US critical minerals opportunities.
About us:
ABOUT PANTERA MINERALS
ASX: PFE | OTCQB: PTMLF
Pantera Minerals Limited (ASX: PFE | OTCQB: PTMLF) is an exploration company focused on critical minerals and gold projects in the United States and Australia.
Its U.S. portfolio includes the 100%-owned Gillham Antimony-Silver Project in southwest Arkansas, where maiden drilling is underway.
Pantera has also entered into binding agreements to acquire a 100% interest in the 470km² Corona Gold Project in Western Australia’s Albany Fraser Orogen. The Project hosts an approximately 8km-long historical aircore gold anomaly and multiple historical auger gold anomalies that remain to be followed up. Completion of the acquisition remains subject to conditions precedent.
Pantera also holds 2.34 million shares in Energy Exploration Technologies Inc. (EnergyX), a privately held U.S. lithium and Direct Lithium Extraction technology company.
Contact details:
For further information, please contact:
Barnaby Egerton-Warburton
Executive Chairman and CEO
E: [email protected]
P: +61 (0) 437 291 155
Jane Morgan
Investor Relations
E: [email protected]
P: +61 (0) 405 555 618