Ann: Mulga Rock Project - Early Works Program Update, page-11

I interpret it as follows:
- VMY plans to commence early works from early October based on previous approvals obtained for Princess deposit. Hence, they will be able to complete substantive early works before 16-Dec-2021. Much of the "infrastructure" required is the same no matter the development scope. They do not have to wait for the last two remaining secondary approvals to commence early works on Mulga.

- But VMY still needs the remaining two secondary approvals before 16-Dec-2021 in order to develop the full scope of the 2018 DFS (all deposits).

I might read it wrong. The announcement is not 100% clear.