I'd say never ... GWR are only dealing with peripheral players who don't have the expertise and or means to mine such remote deposits ... Doubt that this deposit will ever be mined given it's size and remote location (re transport to port etc).
https://www.abc.net.au/news/rural/2020-03-09/gold-valley-iron-put-into-voluntary-administration/12035040 ...Where does that leave GWR now?
In the words of Darryl Kerrigan ... Tell em he's dreaming. Won't happen.
