They shouldn't need funding to expand to 950ktpa because that is all coming from the Baralaba pit.
The problem is the Baralaba pit is nearly exhausted and only has a couple of years left in it, though there could be an extension if PCI prices are strong.
The money is needed for Wonbindi (or Baralaba South as they call it now) which is a brand new development some km south of the mine.