Pantera Minerals has commenced maiden diamond drilling at its 100%-owned Gillham Project in southwest Arkansas, marking the first modern subsurface test across the district.

Dycus 3D Drilling mobilised to site, with drilling getting underway on 18 August 2026. The 10-hole campaign totals approximately 1,500 metres and is scheduled for completion within six to eight weeks.

The program targets high-grade antimony and silver mineralisation at depth beneath the historic Davis, Stewart and May mines. Previous surface sampling across the 5,000-acre project returned rock chips grading up to 19.2% antimony and 63.8g/t silver, alongside soil anomalies extending over 400 and 500 metres along strike.

Pantera funded its acquisition of the Gillham ground following the A$40 million divestment of its Smackover Lithium Project to Energy Exploration Technologies in January 2026.

“With the rig now turning, Gillham has moved from surface exploration into the first direct modern test of the mineralised system at depth. Our 2026 sampling programs identified a compelling combination of high grade rock chip results, coherent soil anomalies and historical mine workings, including rock chips grading up to 19.2% antimony and 63.8g/t silver, and soils peaking at 2,660ppm Sb.”

— Barnaby Egerton-Warburton, Executive Chairman and CEO

Assay results from the core will be reported as they are received and validated, and will be incorporated into Pantera's geological model to rank potential follow-up targets across the broader exploration pipeline.

Read the full announcement: Maiden Drilling Commences at Silver Project At Gillham