RE: Use of existing assay results with lower cutoffs3 Jun 2021 11:19
Ideally, all the core is still kept in a locked shed on the property, or in a warehouse of sorts elsewhere, and so all can be accessed and re-assayed. The original drilling wasn't that long ago by the standards of these things. But for your question - of redoing a resource estimate based on a lower "modern" cut-off grade...they should be able to do that just from the numbers already derived, without having to crush more rocks in a lab.