The Four Mile mine applies the in-situ recovery mining method. Ore is extracted by pumping leachate into the ore through a series of injection wells. The dissolved uranium is pumped to the surface from multiple wells.
Royalty revenue from Four Mile totalled $1.0m (2021: $0.3m). The Group is in dispute with Quasar over the level of charges being applied against royalty revenues. In April 2022 the Group received a favourable decision from the courts which has resulted in the Group receiving a payment of approximately A$6.0m. This judgement has been appealed by Quasar and legal proceedings around the appeal are expected to conclude in H2 2023.