Jindalee Resources Limited has completed a review of the metallurgical testwork undertaken by Jindalee at the Company's 100% owned McDermitt Lithium Project (Project). The review included an examination of various lithium extraction pathways and determined that acid leach with beneficiation is expected to produce the best economic outcome for the Project. The review recommends that metallurgical testwork commences immediately to refine the preferred flowsheet in order to support further studies on the Project, incorporating the recently updated Mineral Resource Estimate (MRE).

In its 2021 Preliminary Scoping Study, Jindalee also assessed the alkali salt roasting. Jindalee subsequently undertook whole of ore alkali salt (sulphation) roasting testwork on McDermitt ore. Alkali salt roasting is the processing route proposed for the Sonora Lithium Project, owned by Ganfeng Lithium.

The alkali salt roasting testwork successfully produced lithium phosphate (Li3PO4) assaying 5.89% Li from ore grading 0.15% Li, indicating a 40x uplift in grade, before purification. The testwork also confirmed lithium extraction of 89.5% using salts recycled from roasting and leaching, with positive implications for reduced reagent usage. Investigation of the potential to apply beneficiation in the proposed sulphation roast flow sheet confirmed that this process is not applicable.