Who is selling? NNA has a Cu-Au porphyry. Probably the next drilling campaign has better results.
In Chile the most of the porphyry Cu-Au have over 1,000 Mt. The grades are 0.5 %Cu and 0.15 ppm Au. Like Esperanza mine A. Minerals; Andacollo mine Teck and El Morro Xstrata.
Regards and luck