In the last quarterly they were feeding the mill with “spent ore” and 0.65g/t oxide rock to maintain an 80% oxide feed. To get 1+ g/t head grade the 20% of sulphide feed must be 2.5+g/t, which must be the high grade stuff they claimed to mine late last year and early this year.
This fits their blustering about flexibility in the new mill to process any combination of sulphide and oxide ore.
