Cost of extraction.......................?
I have asked Terry Plummer if he thought that the cost of extraction at El Colmillo would be $200 per oz. or less. He felt that would probably be the case but further said that it's only an educated guess pending the accomplishment of testing to determine the optimal approach to processing methodology (which, I guess, deals with the sulphide vs. oxide issue and the presence of other economic metals).
Personally, I feel fairly comfortable with Terry's educated guess but testing will nail it down and provide much more surety for economic calculations. Tao requires money for that so we come back to the need for financing. I think we're close...fingers crossed.