Rock Tech Lithium is planning to build Europe's first lithium hydroxide converter. This converter is planned to have a nameplate capacity of 24,000 tonnes per year and will be located in the backyard of major electric vehicle and battery cell manufacturing.

In early 2021, Rock Tech commissioned Wave International Pty ("Wave") to complete basic engineering work and cost estimation to a Class 4 level, according to the Association for the Advancement of Cost Engineering ("AACE"). Wave is assisting Rock Tech with process design, defining the optimal plan configuration and finalizing site selection, including infrastructure needs.

Rock Tech has engaged ALS Metallurgy ("ALS") to conduct a pilot scale test program. The pilot program aims to confirm the lithium hydroxide flowsheet and process engineering parameters, in support of engineering development. This Phase 1 pilot plant is based on a traditional sulphation route process flowsheet provided by Wave. The feed source for the Phase 1 pilot is lithium sulphate (from various sources), demonstrating the robustness of the proposed plant to receive intermediary lithium products other than spodumene concentrate.