Ann: Analyst Presentation , page-3

Looks like we lose another 21 holes from the maiden JORC.

By my calcs, that means a maximum total of 534 holes will be included (with 44 of these still to be released). At 18.47m avg depth so far, an SG of 2.25, and virtually no cut-off grade, that would give approximately 421Mt.

I presume a cut-off grade will be used by Coffee (my guess would be 20%), so 400Mt could be a stretch first-up. A shame cos those assumptions would have provided as much as 623Mt from the whole 15sq km drill area.