Last week, consulting firm Russell Reynolds delivered a list of 15 potential successors for Eduardo Bartolomeo.
Simandou has faced delays due to legal disputes, political changes, and the challenges of building out 600 km rail and port infrastructure.
IGO has been undertaking a strategic review in an attempt to revaluate its resources.
The world's largest producer of iron ore shipped 80.3 million tons of the steel-making commodity in the quarter.
