I will give you something else to think about and tell you why...

I will give you something else to think about and tell you why it is unlikely AMN will be the largest seaborne exporter of SOP from WA.
AMN have assumed an extraction grade of 2.82mg/l K.
Their drainable grade is 3.28. At 86% there is room for error.
RWD in their PFS assumed a SOP grade of 10Kg/m3. The infill drilling grade is 14.53. The same ratio for RWD is 69%. A much more conservative assumption was used in the RWD PFS.
If RWD used the same assumptions on grade as AMN then their 406Ktpa is elevated to 475Ktpa.
This assumes all other assumptions in the respective models remain the same.
Changing the grade assumptions in the RWD PFS isn’t going to increase capital costs.
The wild card is RWD having a stage 2 pumping brine from Officer which is less distance to LD than the length of the APC borefield. Furthermore the single hole brine at Officer has a superior profile to the AMN resource.