I was trying to find the announcement from Pilbara where they...

I was trying to find the announcement from Pilbara where they said this but there's one dated 17-Sep-2018 that stated they had concentrate over 6% lithium but wih <1.4% Fe2O3 ready to ship. I think this figure relates to the concentrate iron content vs ore resource iron which was at 0.69% on their May 2018 JORC.

This implies that the magnetic separation will have a tremendous impact on final concentrate iron given composite 2 for AZS is starting at 0.19%. Wonder what Iron content Pilbara would be getting without any treatment of ore, >5%?