Felix Gold’s Treasure Creek Ore Surpasses Military-Grade Specs, Paves Way for US Processing

Exceptional Ore Quality at Treasure Creek

Felix Gold Limited (ASX:FXG) has delivered a significant update on its Treasure Creek Antimony Project in Alaska, revealing that its ore meets and exceeds the US military-grade concentrate specification (MIL-A-22131) straight from the ground. This direct shipping ore (DSO) boasts an antimony grade of 71.9% and exceptional purity, with negligible deleterious elements such as arsenic, lead, and copper below detection thresholds. To the company's knowledge, no other Western source offers military-grade antimony concentrate directly from ore, underscoring the uniqueness of Treasure Creek’s mineralisation.

Multiple Processing Pathways Validated

Independent metallurgical programs have confirmed two viable ore-to-metal processing routes. Core Resources demonstrated successful direct smelting of untreated ore to produce antimony metal, while Blue Coast Research and the University of British Columbia validated a hydrometallurgical pathway involving alkaline sulfide leaching followed by electrowinning. Both methods achieved high extraction rates; up to 99% antimony recovery; and produced high-purity metal, confirming simplified processing without the need for fine grinding or complex pre-treatment.

Strategic US Processing Facility Progress

Complementing metallurgical success, Felix Gold has completed a site selection assessment for a US-based processing facility through Worley Group. The evaluation supports a dual strategy: toll treatment at existing facilities and development of a dedicated Felix Gold plant. This approach aligns with the US government's push for domestic critical mineral supply chains, leveraging Treasure Creek’s brownfields location, existing infrastructure, and streamlined permitting environment.

Implications for Project Development

The ore’s exceptional quality drives a cascading benefit across the project’s development profile. Selective mining of high-grade material reduces physical footprint and waste, while simplified processing lowers capital intensity and shortens timelines. Felix Gold’s Executive Director Joseph Webb emphasised the strategic advantage of delivering military-grade concentrate directly from ore, highlighting the project's potential to fill a critical supply gap in the US antimony market.

Caution and Next Steps

While these results are promising, Felix Gold cautions that no JORC-compliant mineral resources or reserves have been declared, and no economic feasibility studies are yet complete. The company is advancing bulk sampling and ongoing metallurgical testwork, alongside commercial evaluations for processing arrangements. Investors should watch for forthcoming assay confirmations, permitting progress, and potential toll treatment agreements as key milestones.