Thanks parrothead. Amazing what you can find out reading it a 10th time.
Fig 2 on page 6 shows entire process including 9kg nugget manually extracted at crush/screening 40mm stage before HPGR 8mm that gave eventual recoveries at Rig Heavy and Rig Light from 92-98%.
Also noteworthy in terms of work that was going to be undertaken since this date (page 2):
"Flotation testing designed to raise the average cobalt recovery across all zones above the current average of 85%"
http://www.cudeco.com.au/pdf/879152.pdf
CDU Price at posting:
$3.22 Sentiment: ST Buy Disclosure: Held