Red Mountain Mining Limited has announced exceptional antimony assay results from its Oaky Creek prospect, part of the company’s 100% owned Armidale antimony-gold project located in northeast New South Wales. The findings, reported on January 15, 2026, indicate rock chip samples with antimony concentrations reaching as high as 34.3%, reinforcing the site’s potential as a significant mineral resource.
Outstanding Geochemical Results
The latest results highlight a remarkable concentration of antimony (Sb) mineralization at the Oaky Creek prospect. Among the standout samples, one recorded 34.3% Sb (sample AAR239), while others showed 23.1% Sb (AAR237) and 19.1% Sb (AAR240). Out of the 13 samples collected from the Oaky Creek North soil anomaly, 11 returned antimony values exceeding 1.9% tungsten, showcasing the area’s mineral richness.
This area demonstrates a 1.6 km NNW-strike extent, suggesting the presence of a large-scale orogenic antimony-gold vein system. This geological feature is comparable to the Hillgrove project operated by Larvotto Resources, which is recognized as Australia’s largest antimony deposit.
Upcoming Exploration Plans
Following the recent success, Red Mountain Mining is preparing for more extensive exploration activities. The results from the December 2025 auger program for both Oaky Creek North and South are anticipated to arrive this month. Further fieldwork is planned to finalize this auger sampling program, with the aim of identifying multiple drill targets for orogenic antimony-gold exploration in the first half of 2026.
Additionally, the company intends to conduct a high-resolution airborne magnetic-radiometric survey. This survey will enhance data quality and help delineate additional antimony and gold targets, aligning with the Australian Government’s focus on critical minerals, which includes an investment of A$1.2 billion in its strategic reserve.
As part of its exploration strategy, Red Mountain Mining has executed three field campaigns at Oaky Creek since acquiring the project in December 2024. The initial soil sampling revealed a coherent, approximately 1.5 km long antimony anomaly that extends north and south of historical mining sites. This signifies a significant mineral system with a total strike length of approximately 3 km.
The company has observed promising geological features, including quartz-carbonate-stibnite veins within folded and faulted metamorphosed Carboniferous sediments. Historical mining activities in the area, dating back to the late 19th century, indicate prior interest in the mineral potential of the site.
In summary, with its latest geochemical findings and upcoming exploration plans, Red Mountain Mining is positioning itself as a key player in the critical minerals sector, particularly in the burgeoning antimony market. The company’s proactive approach and strategic planning are expected to yield further insights into the viability of the Oaky Creek prospect as a significant source of antimony and gold in the coming months.
