could be silly question but....

I read that Sandfire state they have some material near surface that could give me fast cashflow until they get to the good stuff (in youtube presentation ). I forget the material they are talking about but I was wondering if PEK come back with great phosphate, is there a possibility they could do something like the same?

Perhaps mostly phosphate in a certain area that they can attack in the first instance. I don't know the process but hopefully someone on this site may have some indication.

Or is it too much of a mix that it has to be separated first and in turn take longer to obtain some cashflow in the shorter term?

Just putting it out there guys.