I'm not sure where this BS about tin-tungsten extraction...

I'm not sure where this BS about tin-tungsten extraction originated, but it's patently incorrect. In some of your posts you state how much you value research...well, it's time to do some so you have a better understanding of the proposed Cinovec process route.

As juk pointed out, tin and tungsten will be extracted first using traditional (for tin) gravity methods. Tails (waste) from the tin plant will then be fed to the lithium plant. A mica concentrate will be generated and Li extracted and precipitated via the chosen method.

This is the primary reason why Cinovec, an Li mica deposit (low grade source of Li), will be able to compete with Li pyroxene (high grade source of Li) deposits; recovery of tin and tungsten by simple and well understood methods will cover much of the cost of Li production.