Antimony Resources Pushes Into New Frontier as Bald Hill Drilling Expands Southward

Junior miner Antimony Resources launches new exploration at Bald Hill, Canada, as antimony prices surge and China tightens export controls on the critical mineral.

The scramble for antimony outside China is intensifying, and Antimony Resources is positioning itself at the center of that race. The junior miner has kicked off a fresh exploration campaign at its Bald Hill project in New Brunswick, Canada, aiming to transform the property into a major North American source of the critical mineral.

The move comes at a time when global antimony markets are under severe strain. Prices have more than quintupled over the past two years, driven by a deepening supply deficit. China, which accounted for nearly half of global production in 2023, recently tightened its export controls on the metal, sending industrial buyers scrambling for alternatives. Antimony is essential for flame retardants, ammunition, and next-generation energy storage systems.

Yet despite the bullish macro backdrop, Antimony Resources saw its shares slide 9.21% on May 6, even as rival United States Antimony Corporation rallied 10%. The US-based competitor has been aggressively expanding, acquiring a tungsten deposit in Ontario and planning to restart the Stibnite Hill mine in Montana. Other juniors are also advancing: NevGold expects initial resource estimates for its Limousine Butte project in the second quarter, with production targeted for 2027, while Rua Gold reported a positive preliminary economic assessment for its Auld Creek project in New Zealand, valuing it at over $100 million at current gold prices.

Antimony Resources, however, is focused squarely on Bald Hill, where recent drilling has delivered compelling grades. A hole from last year returned 4.38% antimony over 7 meters, with one interval hitting 9.76%. A technical report estimates the known deposit at roughly 2.7 million tonnes, with average grades between 3% and 4%.

The company is now turning its attention southward. Soil sampling on the Second Run Claim Block, located about three kilometers from the main deposit, has revealed anomalous antimony concentrations. In two areas, readings reached up to 40 times the background level, exceeding 450 ppm. These results point to potential new mineralized zones that have yet to be drill-tested.

The new exploration phase will focus on defining the extent of these southern anomalies. If follow-up drilling confirms high-grade mineralization, Antimony Resources could significantly expand its resource base at Bald Hill.

The challenge for the company — and for the broader cohort of Western antimony developers — is the sheer cost of bringing new mines online. The high price environment provides a powerful incentive, but the capital required to build new production capacity remains a formidable barrier. For Antimony Resources, the coming months will determine whether it can turn geological promise into a deliverable project that helps break China's grip on the antimony supply chain.