Ann: Parks Reef Deep Drilling Intercept Extended, page-9

not sure what tech Canada, South Africa or Russia uses - these are the major producers.

I'll be happy If we get to a stage to produce concentrate and make decent profit. Yes POD talks about going further than concentrate but I doubt they can do it alone. One needs economy of scale to compete with the traditional producers and if other miners don't join POD with this push then I am not sure how POD can do it.
I rather prefer POD to focus on the basics for now and get the resource to indicated category, release solid metallurgical study and scoping study and then progress to PFS.