I think Gina is more concerned that RIO will help get the...

I think Gina is more concerned that RIO will help get the Simandou project up and running, and flood the market with high-grade West African iron ore. Below is a cut and paste - note the 62% Fe, because this is what the steel mills want.

The iron ore body of Simandou is located in the southern part of the Simandou Mountain in south-eastern Guinea. The mine contains friable haematite and goethite haematite.

Pic de Fon and Ouéléba are the two main deposits at Simandou. The deposits are approximately six to eight kilometres in length, one to 1.5km wide, and extend to 300m in depth, while being up to 500m deep in some places.

Pic de Fon contains high grade haematite containing more than 62% iron, while Ouéléba has haematite-goethite.
The two deposits together hold more than 2.4 billion tonnes of high grade iron ore.