Just to reply to myself (!), if I look at Euroz report and take
Cu price 2.65 - C1 costs 1.31 = 1.34
Activities report recently and current copper price
Cu price 2.55 - C1 costs 1.51 = 1.04
which is around a 30% disparity.
I'm sure the error of my ways will be pointed out... I'm simply an amateur and I've used C1 costs (same as AISC? dunno) and Cu price as some indication of profitability.
AVB Price at posting:
11.5¢ Sentiment: Buy Disclosure: Held