Please read and understand: AMC's report clearly states"The...

Please read and understand: AMC's report clearly states

"The revised geological model prepared by Arafura reflects the complex geometry
encompassing REE-P-U mineralisation and associated alteration guided by a 0.5% REE cutoff while minimising internal waste. Isolated narrow intervals of mineralisation have been excluded from the geological model."

Excluding "isolated narrow intervals of mineralisation" means you only deal with the massive gangue mineralisation; therefore lowering cut off grade doesn't effect the amount of extractable ore (in this case we don't deal with a porphyry copper type of mineralisation!).
On the other hand they drilled down to 400m and still in ore, but AMC calculated only down to 250m because the grid width of but a few deep holes wouldn't fit with JORC requirements.
Please guess what this means for the real size of the deposit.

GL RMINCONSULT