Tambourah Metals Ltd Uncovers High-Grade Antimony, Silver & Copper at Speewah Nth – Antimony Prices Climb to US$60,000/t
Thursday, July 3, 2025
at
8:17 am
Tambourah Metals Ltd has reported promising assay results from its Speewah Nth project, with high-grade antimony, silver, and copper confirming historic findings. The company is set to prioritize antimony exploration and further mapping, positioning itself advantageously in the expanding critical minerals portfolio.
Tambourah Metals Ltd has announced that initial rock chip sampling at its Speewah Nth project, located in the Kimberley region of Western Australia, has returned encouraging results with high-grade antimony, silver, and copper. The sampling, carried out along a 6km section of the historic Chapman – Catto corridor, indicated antimony levels up to 4.54%, silver concentrations reaching 517ppm, and copper values of 3.62%. These results corroborate earlier reports from the corridor, which had previously identified anomalous antimony and silver through surface sampling and drilling focused on copper and gold.
The Speewah Nth project spans 181 square kilometers and is situated on the northern half of the Speewah Dome, where distinctive geological features such as a composite Hart Dolerite sill and significant structural faulting create favorable conditions for mineralization. Notably, additional exploration around the project’s eastern margin is planned, with follow-up outcrop mapping and sampling aimed at defining further antimony-silver targets in preparation for a drilling program. The Company is placing a priority on antimony exploration, a move supported by the recent surge in antimony pricing from US$12,000 to US$60,000 per tonne.
The announcement includes detailed assay data from 35 rock chip samples and highlights the rigorous approach taken in sample collection, preparation, and QAQC, reflecting industry standard practices. While the reported grades are promising, this exploration stage is based on preliminary rock chip data. The Company intends to expand the program to establish geological continuity and to determine the full potential of the identified vein system.
Bullish sentiment centers on the impressive high-grade results and the strategic reorientation towards antimony, fueled by a significant price increase in this critical mineral. The presence of established infrastructure in the Speewah area and the scale of the deposit also bode well for future exploration and potential value creation. Conversely, a bearish perspective might point to the exploratory nature of this work—with current findings derived from surface sampling only—and note that the continuity of mineralization has yet to be confirmed through drilling. Investors should be mindful of the inherent risks of early-stage projects, where market volatility and the need for further drilling could impact the overall investment outcome.