Contained gol Concentration indexIn tons of contained gold per million ton of gold resource..
Keats+.................................52 tons
Goldboro..............................9 tons
V Lake..................................5 tons
SGD .....................................1.5 tons
SGD will have mine a lot of ore to recover one ounce of gold ......much larger mine crew and mill, tailings and transportaion costs.
When mining gold , grade is everything ....