Terra Critical Minerals Uncovers Significant Bismuth at Glen Eden Project

Discovery of a Critical Mineral

Terra Critical Minerals (ASX – T92) has announced the identification of significant bismuth mineralisation at its Glen Eden Project in New South Wales. This discovery is particularly noteworthy given bismuth's status as a critical mineral with limited global supply, predominantly sourced from China, which accounts for approximately 80% of world production. The rising demand for bismuth, driven by its applications in electronics, healthcare, and environmentally friendly metal alternatives, has led to notable price surges internationally.

Geological Context and Historical Data

The Glen Eden Project is already recognised as the largest undeveloped tungsten project in NSW, featuring a complex multi-phase brecciated greisen and stockwork system approximately 500 meters in diameter. Historical diamond drilling to depths of nearly 400 meters has consistently intersected strong mineralisation, with bismuth assays now confirmed alongside tungsten, molybdenum, and tin. Notably, metallurgical work from the early 1980s identified visible native bismuth and bismuthanite, although bismuth was not assayed at that time.

Exploration Target and Potential

Based on a thorough review of historical drilling data and geological modelling, Terra has defined an Exploration Target of 20 to 30 million tonnes at grades ranging from 0.05% to 0.08% tungsten trioxide, 0.02% to 0.04% tin oxide, and 0.06% to 0.10% molybdenum disulfide, to a depth of 100 to 150 meters. While bismuth is not yet included in metal equivalent calculations due to limited assay data, its consistent presence across drill holes and association with key minerals suggests it could add significant value to the project.

Next Steps in Exploration

Terra plans a comprehensive exploration program commencing in early 2026, including re-assaying historic drill core to better understand bismuth distribution, integrating geophysical data, systematic field mapping, and targeted drilling to test lateral and depth extensions of the mineralised system. The company is also progressing permitting for drilling activities, aiming to refine the geological model and potentially delineate higher-grade zones similar to world-class deposits.

Strategic Positioning in Critical Minerals

This bismuth discovery complements Terra’s broader portfolio, which includes uranium projects in Canada’s Athabasca Basin, a globally significant uranium province. The company’s diversified focus on critical minerals positions it well to benefit from evolving market dynamics and supply constraints, particularly as demand for non-toxic and high-performance metals continues to grow.