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Highlights
- High-grade antimony, silver, and copper found at Speewah Nth
- Initial rock sampling confirms historic exploration data
- Antimony prioritised amid soaring global prices
Tambourah Metals (ASX:TMB) has reported promising assay results from its maiden exploration program at the Speewah North project in Western Australia, revealing high concentrations of antimony, silver, and copper. The results mark a significant milestone for the company as it deepens its focus on critical mineral exploration in the region.
During this early-stage campaign, Tambourah collected 35 rock samples—comprising quartz veins and gossanous materials—from across a 6-kilometre stretch within the Chapman–Catto’s trend. Notably, seven of these samples delivered copper values ranging from approximately 0.1% to as high as 3.12%. These copper-rich samples were also associated with silver concentrations reaching up to 512 parts per million and antimony content peaking at 4.54%.
This recent work validates earlier surface sampling programs that were primarily focused on copper and gold. Speewah North, a 181-square-kilometre tenement, is located in the northern section of the Speewah Dome—a geologically significant structure in the region.
The current exploration program is Tambourah's first at this tenement and sets the stage for more detailed follow-up work. The company plans to conduct additional outcrop mapping and rock sampling, particularly along the eastern margin of the Speewah Dome. These activities aim to uncover new antimony-silver targets that can be incorporated into future drilling campaigns.
Strategically, the Speewah North tenement is situated just 4km from the Speewah Fluorite deposit, a project under Tivan (ASX:TVN), which recently gained major project status. The area has attracted further attention following a memorandum of understanding signed by Sumitomo Corporation to acquire a 22% interest in the adjacent fluorite development.
What’s particularly noteworthy is Tambourah’s pivot to prioritising antimony as its central focus. This shift aligns with a surge in global antimony prices, which have recently skyrocketed from around US$12,000 per tonne to approximately US$60,000 per tonne. The strong assay results, coupled with favourable market dynamics, have positioned antimony as a key target for ongoing and future exploration.
Tambourah Metals' work at Speewah North is part of a broader strategic initiative to unlock value from underexplored areas rich in critical and strategic minerals, with antimony now taking centre stage in its exploration roadmap.
