Ann: Exploration Update, page-83

"and why they haven't done some SEM or minerological work to understand the nature of their mineralisation and why the assay numbers are non-repeatable?"

That was done way back in 2015 read the dec 2015 half yearly page 3 , SEM was done at the New Steel -CTSS laboratory outside of Rio


"If they are using a tonne of copper catalyst to produce an ounce of gold then its hardly a viable business plan is it"

THe Copper is acting as a collector of the gold , it is recycled back via electrowinning a bog standard low cost industrial procedure , so it is not going to waste .
Also its a lot less than a tonne of Cu per oz Au .
Its good that you post as you probably represent Joe average investor , and your posts verify that the average investor can not conceptualise what BBX are doing , which vindicates to me the critics lack a scientific base for their arguments .
Anyway keep posting as I find your posts bewilderingly entertaining .