Found this useful table searching on the web and was hoping for...

Found this useful table searching on the web and was hoping for some feedback on whether these grades definitions sound about right.



Based on the above table the results KOR released yesterday puts their Co results (up to 1.46%)  in the low-med grade; their Ag results (up to 3.45%) in the low range......but their Cu results ( up to 16.9%) well into the high range!
Cheers