"THe Copper is acting as a collector of the gold , it is...

"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"

With no loss of copper and silver at all? And with cost-free electricity and consumables I assume?

I have a mate who is a real metallurgist with mine site and commercial assay lab experience - I will ask him about this met test work, whenever he comes over to my place sometime, I will be interested to hear what he has to say.