Resolution Minerals (ASX:RML) has highlighted the latest grab samples from on-site its United States-based Antimony Ridge asset with grades up to 49% antimony and 890g/t silver clocked within surface-lying visually identified mineralised samples associated with historical mining on-site.
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Antimony Ridge is part of the larger Horse Heaven project, which Resolution hopes to establish as a strategic U.S. critical mineral play – to that end, Resolution was at one point in 2025 in talks with a firm tied to the Trump family around whether or not RML might list in the U.S. (To date, no news there.)
“The [surface grab sample] results confirm the presence of widespread, very high-grade antimony mineralisation,” RML wrote on Wednesday.
Continuing: “Peak results include grab sample 732005: 48.7% Sb and 270 g/t Ag and grab sample 732008: 37.9% Sb and 890 g/t Ag, highlighting Antimony Ridge as a robust, high-grade polymetallic system.
This builds on the back of samples pulled back in October:

“Importantly, Antimony Ridge is emerging as a large, coherent, high-grade system within a strategically critical jurisdiction at a time when sure U.S. antimony supply has become a national priority,” RML U.S. Operations CEO Craig Lindsay said.
“Antimony grades of this magnitude are rarely reported globally, particularly exposed at surface, and the consistent association with strong silver and gold values materially enhances the project’s overall value proposition.”
RML last traded at 6cps.
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