PILBARA COMPLETES KEY METALLURGICAL TESTWORK PROGRAM

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Key Points: Comprehensive Phase 2 metallurgical testwork program now completed, allowing the process flowsheet to be finalised for inclusion in the Definitive Feasibility Study (DFS).

Overall recoveries range between 76% to 78.1% Li2O and significant Ta2O5 recovery improvements in the range of 51% to 59.3%.

The proposed three stages of Heavy Media Separation (HMS) outlined in the March PFS has now been reduced to just two stages as a result of the Phase 2 Heavy Liquid Separation (HLS) testwork, which will simplify operability.

Comprehensive spodumene flotation testwork has been completed with further optimisation work underway.

A Pilot Plant testwork program has commenced on the HMS phase – flotation program to follow.

A 4Mtpa Primary Crusher will be installed upfront to facilitate early expansion capability of the project.

The DFS encompassing a 2Mtpa base case development of the Pilgangoora Project, together with a PFS on a 4Mtpa expansion in Year 3, is now in its final stages and will be announced to the market towards the end of September following review by the Pilbara Minerals Board.

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