|i|i|i day, page-61

Ok so......................

"From the numbers published in the technical reports for the two projects used as templates, the
spodumene circuit appears to have a lower capital cost than the clay circuit because the clay circuit
has a sulphuric acid plant that the spodumene circuit does not. A simple IRR calculation indicates
that the acid plant is a highly beneficial addition to the clay circuit."

Now Elon did not mention in the presentation today the cost of extraction from clay........wonder why ?

So from a technical aspect here is a study between spondumene and clay extraction.................

http://arithmetek.com/publications/Lithium%20from%20Clay%20Versus%20Lithium%20from%20Spodumene.pdf