• Successful metallurgical testwork on Chewy and Tabba Tabba resources
• Chewy resource expected to add value by converting waste to ore
• Viable processing methods identified for both lithium and tantalum resources

Wildcat Resources has completed Stage 1 metallurgical testwork on the Chewy and Tabba Tabba resources at its 100%-owned Tabba Tabba Project in Western Australia. The testwork has identified viable processing methods for both the lithium and tantalum resources, which are expected to add value in the Definitive Feasibility Study (DFS). For the Chewy lithium resource, the testwork demonstrated the ability to produce a separate spodumene concentrate (>5.5% Li2O) with ~62% recovery, as well as a potentially premium petalite concentrate (>4.2% Li2O) with ~53% recovery. This is expected to unlock positive economic value in the DFS by converting material previously classified as waste in the Pre-Feasibility Study into ore. For the Tabba Tabba tantalum resource, simple gravity processing delivered tantalum oxide concentrates (>5.0% Ta2O5) with 60-65% recovery, also containing valuable by-products of niobium and tin. The company is fully funded to complete the Tabba Tabba Project DFS and progress to a financial investment decision.

The Tabba Tabba Project is expected to produce an average of 295ktpa of spodumene concentrate in Stage 1 (years 1-7), increasing to 565ktpa in Stage 2 (from year 7 onwards), over an initial 17-year mine life.

Wildcat is planning additional variability testwork on the Chewy resource, process engineering and financial modelling, as well as further testwork to optimise the performance and design implications of the spodumene to petalite ratio. For the Tabba Tabba tantalum resource, the company will focus on process engineering and financial modelling, with no further metallurgical testwork planned.