Ann: Planning application to establish RE processing facility, page-5

"Detailed discussions with local councils and experienced planning agents have
confirmed that subject to a final investment decision and funding being
available, the necessary planning permission for the proposed UK facility can
potentially be obtained with sufficient time for it to be constructed
contemporaneously with the Longonjo mine development".

This was from the saltend announcement on 7th Dec.
I believe they will aim for building the refinery at similar time to Longonjo and have both operational at same time.