Ann: Outstanding PFS Results Support HPA Development, page-12

in my eyes the question is the final production line. didnt find any information what they further like to do with the sapphire crystal. i understand it so, that they want to sell the crystal to other costumers for further processing.
so it seems to be hard to compare fyi with heg or atc. atc have a 2 stream processing line.
1. jet mill for powdered hpa and
2. pelletiser!
this two different production lines obviously have a huge impact on the capex.

did someone find a statement within the fps wich discribes the target product and what FYI likes to do with the sapphire crystal?