jorc trading halt bring it on, page-71

There are different grades of JORC, as I understand it (feel free to correct me; I could very easily be wrong.)

There are inferred estimates; indicated estimates; and measured estimates.

These are progressively worth more: inferred is based on relatively sparse data; indicated is based upon more detailed drilling; and measured estimates are as good as it gets short of digging the stuff up and selling it.

So if the JORC consultants "need more holes", they'll just drop the estimate back to the lower level.

Based upon the drilling map, though, I suspect that we'll have a measured estimate in the centre of the southern zone (where the drilling is densest), and possibly indicated and/or inferred estimates for areas where Peak have done a lot of drilling, but not quite so densely.

Peak will probably be looking to do infill drilling to upgrade the indicated and inferred estimates to measured, once the first estimates are in.