Deep Yellow Limited provided a progress update on the evaluation program undertaken on the Mulga Rock Project (MRP or Project), located in the Great Victoria Desert in Western Australia, 290km by road ENE of Kalgoorlie. As advised on 25 November 2022, Deep Yellow initiated an evaluation program, following on from its pre-merger work, after identifying an opportunity for a significant potential uplift in Project value by increasing the focus on recovery of critical minerals located within the existing Mulga Rock resource shells. This work and the possible future recovery of critical minerals will be completed within the existing approvals framework for the Project, seeking to better utilise the resource base of the MRP.

The evaluation program is assessing the potential value of metals such as copper, nickel, cobalt, zinc, and rare earths (particularly neodymium and praseodymium), known to be present in these deposits. Preliminary work already completed by the Company demonstrated that optimising the process flow sheet and mining schedules, within approved pit boundaries, by considering the full economic mineral endowment of these polymetallic deposits, rather than focusing solely on uranium, may add substantial value to the Project. Drilling completed to date by Deep Yellow, associated with this program, has been restricted to the Mulga Rock East deposits (Ambassador and Princess).

These deposits are richer in critical minerals and uranium, represent the majority of the known mineral resources and consequently will be mined before the lower grade deposits to the west in MRP's mining schedule, providing up to 20-years operating life. To help better define the assessment for value uplift at the MRP, a 63-hole, 4,099m geo-metallurgical aircore drill program was completed on 8 of December 2022. The program aimed to provide sample material for metallurgical analysis to determine ore variability and estimated process recoveries for critical minerals with 1,552 individual samples collected for metallurgical testing.

Additionally, 1,862 samples will be submitted for multi-element geochemical analysis to support the metallurgical test work and re-assessment. Results will be reported once they become available. In support of the revised MRP DFS, a 600 to 800-hole aircore drill program is planned for completion in first half calendar year 2023 to better define reserve/resource variability, upgrade the resource classification for uranium and critical minerals and provide additional material for metallurgical analysis.