Resolution Minerals Reports High Recoveries From Testing of Lower-Grade Antimony Ridge Samples

Why It Matters

Demonstrating high recovery from lower‑grade ore proves the economic viability of Antimony Ridge, bolstering domestic supply of a critical metal and strengthening Resolution Minerals' growth outlook.

Key Takeaways

• 99.5% sulphur recovery from <10% antimony sample
• Near‑complete stibnite recovery achieved in rougher flotation test
• Further testing aims for >50% antimony concentrate purity
• Antimony Ridge spans 0.68 km² with antimony‑silver veins
• 13,700 m drilling starts for gold resource estimate Q1 2027

Pulse Analysis

Resolution Minerals' recent flotation test marks a pivotal step for the Antimony Ridge project, showing that even low‑grade material can deliver almost total sulphur capture and stibnite extraction. The 99.5% sulphur recovery figure, achieved on a 15 kg sample with under 10% antimony, suggests the ore can be processed efficiently without excessive dilution. By confirming that the rougher concentrate can be upgraded in subsequent cleaner stages to exceed 50% antimony, the company mitigates a key risk that often hampers the economics of antimony mining.

Antimony, a critical mineral for flame retardants, batteries, and emerging semiconductor technologies, has faced supply constraints as most production is concentrated in China. Resolution’s strategy to develop a domestic hub in central Idaho aligns with U.S. policy goals to diversify sources of strategic metals. The project's integration with the broader Horse Heaven complex—featuring existing tungsten stockpiles and processing infrastructure—creates synergies that could lower capital outlays and accelerate time to market. Successful scale‑up of the Antimony Ridge operation would not only feed the growing demand for antimony but also enhance the company’s position in the broader critical‑minerals landscape.

The upcoming 13,700 m diamond‑drilling campaign at the Golden Gate target adds another growth vector, targeting a gold resource that could be quantified by early 2027. A robust gold discovery would diversify revenue streams and improve the project's overall economics, making it more attractive to investors. Together, the high recovery rates, critical‑metal focus, and imminent drilling program position Resolution Minerals to capitalize on both commodity price upside and strategic supply‑chain incentives, potentially driving a notable uplift in its market valuation.