multibagger-why i reckon it maybe, page-3

JUK

Mali operation is REFRACTORY ORE as well and has produced over 1 milion oz/yr in the past.

The reason APEX are looking for the gold ,is because they had just finished mining an area of freemilling gold,for no increase in yield.(read one of the last reports for that comment on freemilling ore-Queen anne?load)Around the same time they said they were re-conditioning the concentrator.

The latest look-up of the Knelsen site indicates Mali are now getting 45% yield 2011,by their gravity circuit.

Technology has moved on.Mali yield change was from reconditioning the concentrator and running it with NEW OPERATIONAL PRACTICES/CRITERIA valid at 2008 for 40% gravity.
If now 45%,then no doubt further improvements have been made.
Certainly beats the 5-10% they were getting before,at the beginning of that year.

They're getting 92% from refractory ore and were getting 87-88% prior,just like APEX and at 3-4g/ton.
Remember,it wasn't so long ago APEX was at 83% recovery.

anyway,best of luck with your research-connect the dots certainly proves profitable,it is worth trying if you can be bothered.