Felix Gold (ASX: FXG) has extended high-grade antimony mineralisation at the NW Array prospect within its Treasure Creek project in Alaska following further results from its 2025 drilling program.
New drilling has expanded the antimony-bearing system west and south of the main drilling area, with mineralisation remaining open in both directions.
The company reported several shallow high-grade intersections, including 8.67 metres at 12.51% antimony from 17.08m and 4.92m at 12.53% antimony from 4.21m including 1.63m at 36.65% antimony.
Other notable results were 11.28m at 2.14% antimony from 54.44m including 6.52m at 3.31% antimony, and 10.25m at 2.17% antimony from 19.1m including 3.15m at 6.09% antimony.
Gold Halo Around Antimony Zones
Drilling has also returned gold mineralisation associated with the antimony structures, interpreted as broader halo mineralisation surrounding the high-grade stibnite veins.
One standout result from hole 25TCDC022 returned 25.61 metres at 2.03 grams per tonne gold from 37.85 metres including 11.51 metres at 3.88 grams per tonne.
The company said the gold mineralisation appears linked to breccia-style structures that surround and host the high-grade antimony veins.
Results reported so far cover assays from 37 diamond drill holes and one reverse circulation hole completed during the 2025 program.
Antimony and multi-element assays remain pending for a further 14 diamond holes and one RC hole, while gold assays are still outstanding for 43 diamond holes and 18 RC holes.
Treasure Creek System Expanding
Felix Gold executive director Joseph Webb said the latest drilling continues to demonstrate the growth potential of the NW Array system.
“What makes Treasure Creek strategically different is not simply grade—it is ore quality,” he said.
“We continue to demonstrate that this system contains the type of clean, high-grade antimony mineralisation capable of producing military-grade product from ore—no other known project outside China can make this claim.”
“At a time when the US has no domestic antimony supply and is actively seeking secure long-term feedstock, every hole continues to strengthen Treasure Creek’s strategic importance.
The Treasure Creek project lies about 30 kilometres north-east of Fairbanks in Alaska’s Fairbanks Mining District and hosts the historical Scrafford Mine, which previously produced high-grade antimony ore grading up to 58% antimony.
