Before I answer that, if I could just make one brief comment about the stockpile, which is something that, in a paper I wrote on critical minerals for defence last year, I also recommended. This was back in February of last year.
There's another interesting angle to stockpiles that could be considered. Maintaining large government stockpiles is expensive and can be very static. Another thing that can be considered is the case of defence companies that have stockpiles for their own production. Let's say at the end of a given year, they have some minerals that they haven't used. Tax breaks could be given to them to encourage private companies to stockpile.