HWK General Discussion, page-140

This is what I like from last announcement March 24- possibly another 1%?

The hydrometallurgical process that Hazen is evaluating involves sulphuric acid leaching, leach solution purification, and the subsequent production of 99.8% Li2CO3 used in the production of lithium-ion batteries. The process is straightforward, environmentally-superior to peer developments, and based on proven unit operations with the initial test work demonstrating that the present flowsheet is a viable approach for the development of the Big Sandy resource.

Then this as a plus
To advance the Project, Hawkstone is concluding plans for an extended bench-scale and concurrent pilot plant design program to commence at Hazen. This testing and design work will be used to develop a flowsheet and form a design basis for a full-scale operation to bring Big Sandy to commercial production. A scalable, continuous pilot plant design will be developed that will ultimately be located adjacent to the production facility enabling additional technology development, testing of different ore types, and in support of project financing requirements.