RE:RE:RE:RE:RE:RE:RE:Metalology is not a concern for TUOYou are not understanding what I'm saying......When an ore is not refractory, the metals are either free or oxides.....both of which are leachable. When you roast a sulfide ore it converts the metals to metal oxides and burns off any carbon which may be occluding them...they are now apples and apples, able to be concentrated or leached in EXACTLY the same way as SEA ore would be (in fact likely even better to work with)
Do some research. There are studies from say 10 years ago that show at the time you could build a Roasing complex for about $350 million and operate it for under $100 million annually for an average cost per Oz of under $600.....
Things have come up since then so let's Double those numbers,
$700 million to build an ~$150 Million/Year to operate which equates to a average cost of $1200 per oz.
We'd still make $600 per ounce profit. Now multiply that by 50 million ounces and you have made $30 Billion......PROFIT....not gross.......