COB Demonstration Plant Update: High Grade Concentrate Results

The Concentrator Circuit has now completed operations, with a total of 4,200 t of ore processed to produce 680 t of wet concentrate. The combined recovery for the concentrator circuit was typically 95%, exceeding the recoveries obtained in the 2020 Project Update (PFS level study) of 90%. First large-scale Mixed Hydroxide Precipitate (MHP) is expected in December 2022, with continuous operation of the leach and MHP circuits planned from January 2023. The Demonstration Plant operations are on track to deliver the initial ‘process plant design criteria’ for the Definitive Feasibility Study by the end of Q1 2023.