Australian Potash CEO Matt Shackleton says it is a seminal step for the project.
According to the conditions Calidus must submit a species management plan before work can start.
The Pilbara Energy Generation power station will have capacity for 165 megawatts.
Klondyke Pit will be the focus, with the 2km long by 240m wide open pit dropping to a depth of 120m....
Mining will begin once final feasibility studies are completed and finance is secured.
Environmental approval on the horizon as Venturex slashes costs.
WA's environment minister expected to grant Mineral Resource' request.
Earl Grey gets the okay from WA EPA.
The Jervois base metals mine can go ahead.
McArthur River gets a clean bill of health from NT authorities.
The environmental permit is subject to seven conditions.
BHP wants another TSF to keep Olympic Dam going for longer.