The project is located on the western edge of the Norseman-Wiluna Greenstone Belt, about 60 kilometres north of Leinster, and 680 kilometres north-east of Perth, Western Australia.

Kathleen Valley is one of the world’s largest and highest-grade hard rock lithium deposits and, with an initial 2.5 Mtpa production capacity, it is expected to supply ~500,000 tonnes of 6% lithium oxide concentrate per year. With first production expected in Q2 2024, the deposit will also produce Tantalum Pentoxide, a valuable material used in electronics and optics manufacturing.