Felix Gold Limited confirms strong continuity and high-grade antimony mineralisation at its NW Array project in Alaska, positioning for near-term production to address critical US supply shortages amid China's export ban.
- Confirmed 150m strike continuity of mineralised breccia with grades up to 5.3% Sb
- High-grade veins extending 100m with grades up to 18.11% Sb
- Potential near-term US production pending permits and feasibility study
- Strategic positioning amid US supply chain vulnerabilities due to China export ban
- Ongoing drilling and bulk sampling to support maiden Mineral Resource estimate
Drilling Success at NW Array
Felix Gold Limited (ASX, FXG) has delivered compelling drilling results from its NW Array antimony project in Alaska, confirming both the scale and continuity of mineralisation critical for advancing towards production. Multiple drill holes have intersected a mineralised breccia structure extending approximately 150 metres along strike, with high-grade veins demonstrating consistent mineralisation over 100 metres. These findings underscore a robust system with potential for both bulk tonnage and selective mining.
The standout intersection includes 17.78 metres grading 3.17% antimony (Sb), including a higher-grade 6.7 metres at 5.3% Sb within the breccia zone. Additionally, veins have returned 2.66 metres at 6.11% Sb, including a remarkable 0.85 metres at 18.11% Sb. These grades rank among the highest globally and are particularly significant given the project's surface accessibility and proximity to infrastructure.
Strategic US Supply Chain Implications
Felix Gold’s Executive Director, Joe Webb, emphasised the broader strategic importance of these results. With China controlling 85% of global antimony processing and having imposed an export ban to the US, Felix Gold is poised to become a leading non-Chinese source of this critical mineral. The company is targeting near-term production of high-grade antimony concentrate suitable for military-grade metal processing, aligning with US government priorities for supply chain security.
The Treasure Creek Project benefits from excellent infrastructure, located just 20 minutes from Fairbanks, Alaska, with established roads, power, and a skilled workforce. This proximity significantly de-risks development and supports Felix Gold’s low-capital, modular approach to production, focusing initially on surface mining and bulk sampling to accelerate timelines.
Advancing Towards Production and Resource Definition
Felix Gold has mobilised multiple rigs and is conducting extensive drilling and trenching programs, with over 97 holes completed in 2025 alone. The company has lodged a bulk sampling permit to extract 1,600 tonnes of high-grade ore, with feasibility studies and permitting targeted for completion by Q1 2026. The operational plan includes hand-sorting and shipping ultra-high-purity stibnite concentrate to a planned US smelter, aiming to establish the first fully integrated domestic antimony supply chain in modern history.
Ongoing work includes refining geological models to understand structural controls on mineralisation and preparing for a maiden Mineral Resource estimate. Metallurgical testwork has demonstrated promising recoveries of 85% Sb, producing concentrates grading 69% Sb, further supporting the project's economic potential.
Geopolitical and Market Context
The timing of Felix Gold’s development is critical. The US government has declared antimony a strategic mineral with critical supply shortfalls, mobilising funding and fast-track permitting under recent executive orders. With antimony prices surging from US$11,000 to over US$60,000 per tonne in the past year, Felix Gold’s project is well-positioned to capitalize on urgent demand from defense, clean energy, and industrial sectors.
Felix Gold’s progress also highlights the growing collaboration between allied capital and American resources, underscored by high-level diplomatic engagement between Australia and the US. This project exemplifies a practical response to geopolitical supply chain challenges, moving beyond concepts to tangible development.
Bottom Line?
Felix Gold’s NW Array project is rapidly evolving from exploration to potential production, offering a timely domestic solution to critical antimony supply risks.
Questions in the middle?
- When will the pending gold assay results be released and how might they impact resource estimates?
- What are the key permitting hurdles remaining before near-term production can commence?
- How will Felix Gold finance the transition from bulk sampling to full-scale production and smelter operations?