OK, I now see the discrepancy in this reporting.

Perhaps a conversion error on the part or the author?

Lots of jumping about from OZ to KG/tonnage.

You're sharp to have caught that though I don't buy into anything of a conspiratory nature.

Until the amounts are clarified by BGM I would reserve making any predictions of calculations regarding fineness based on these conflicting totals.

Perhaps IR could jump in on this one?