If it’s all about purity we should try to find pricing for 99.9% Sc2O3 since that’s the only purity they’ve committed to.
The FS talks only of 99.9% scandium oxide. Do you think EXIM will base any decisions on possible scandium metal production?
If so, did you account for the fact that scandium oxide can at most be reduced to 65% scandium? So even if you want to assume they process it all into scandium metal, go ahead and cut that 100 tonnes down to 65.
But what did that process cost you? Keep in mind processing to scandium oxide is an intermediate step in producing scandium metal.
Your research shows a higher purity of scandium oxide at a much lower cost than the FS. The reduction of scandium oxide to scandium metal isn’t particularly complicated, but it does appear to be expensive.
Of course this also ignores that the largest use for scandium today is in solid oxide fuel cells, where they need (as the name implies) yttrium or scandium oxide.
In the end, nothing NB proposes is unique. Literally every potential scandium producer is talking the same story, but at much lower prices.