The only thing we can go on is the JORC compliant reserves. The latest numbers we have are June 2017.
The proven 73 koz at an average of 1.4 g/t is what we have been processing for the last 12 months so should be all gone by now.
The probable 1128 Koz at an average of 2.6 g/t is what we have to work with from here.
There is some lower grade open pits 196 kHz at average 1.5 My hope is the excavators will walk past that and concentrate on better stuff which abounds.
The rest of the OP reserves are at Willunga. 669 koz at a very healthy 2.7 g/t
Of course mixed with the OP will be the UG reserves 263 Koz at 4.7
If they are hell bent on self flagellation and want to use the low grades first we would need a cocktail of OP and UG.
1.5 tonnes from UG to every 10 tonnes from op would give 1.9 g/t
BLK Price at posting:
4.1¢ Sentiment: None Disclosure: Held