Separation Technique Needs To Cost Effective and Viable Coremet looks like an interesting company. They make a variety of semi automated industrial separators. Many seem to be based on gravimetric shaking and things like that.
https://coremet.co.za/
I see no evidence that the have deveoloped a lithium separation device suitable for extraction from a soil matrix. So, this would be an in development sort of technology. To extract the remaining minerals my guess is the complexity of the device would be incremental
Gimme, is it going to a chemical processs? Or it based on molecular weight and shaking for separation? I'll assume you have no idea if you don't answer. Which is fine.
If a workable large scale technology has been developed for lithium separation technology I would be happy to take a closer look at it. I might even invest in TTX if it seems verifiable.
Full disclosure. I have an engineering background. Lots of experience with industrial processes and automation. It comes in handy at times when evaluating technical approaches to mining and mineral extraction.