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Strong US market debut for Red Mountain

19th November 2025

By: Creamer Media Reporter

     

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ASX-listed Red Mountain Mining has made a strong entrance into the US capital markets, with its RMXFF ticker on the OTCQB jumping as much as 36% on debut to A$0.054 ($0.035).

The company said on Wednesday that the first day of trading delivered robust volumes and strong engagement from US-based investors, reflecting growing interest in North American critical minerals plays.

Red Mountain’s listing forms part of a strategy to deepen its US footprint and position its expanding antimony and critical minerals portfolio for US government support. CEO-level discussions with strategic partners remain ongoing, aimed at accelerating project development and navigating US funding frameworks.

The company will present at the Australian Rare Earths and Critical Minerals Investor Conference on Wednesday, with distribution across major US capital markets networks expected to further broaden investor visibility.

Red Mountain highlighted the strategic potential of its US antimony assets in Idaho and Utah, which lie adjacent to known deposits. The metals are considered critical to US supply chains and have become a priority for domestic sourcing.

In Australia, the company continues to explore its 400 km2 Armidale antimony/gold project in New South Wales, located near Larvotto Resources’ Hillgrove project, which is Australia’s largest and the world’s eighth-largest known antimony deposit.

Since acquisition, Red Mountain has accelerated fieldwork across multiple prospects. At the Oaky Creek prospect, soil sampling returned up to 333 parts per million antimony, with rock chips delivering values up to 39.3% antimony and 1.09 g/t gold. Early sampling at East Hills returned up to 9.9% antimony, while rock chips from the Horsley Station prospect yielded up to 0.25 g/t gold.

Further results from Armidale are expected by the end of November.

Edited by Mariaan Webb
Creamer Media Senior Deputy Editor Online

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