The expansion could disturb some Aboriginal heritage sites and Fraser Creek.
Roy Hill also wants to develop permanent surface water structures.
The mine life at Yalyalup is expected to be four to five years.
EPA to assess the Lake Wells SoP project.
As part of the expansion new mine pits and infrastructure will be built at Western Range.
EPA approval process close to completion at Lake Wells.
Reward spells out its intentions for Lake Disappointment.
BCI wants to develop a 4Mtpa salt and 100,000tpa sulphate of potash operation at Mardie.
St Ives puts its expansionist plans to the public for review.
FMG releases Eliwana's environmental review document
Yangibana's environmental review document opens to the public.
FMG takes its environmental review documents to the public.