Shipping rates for GBG

Interesting shipping rates for GBG since June quarter in 2013. Rates before this were during the ramp up period and a bit meaningless.

You can see the effect of the maintenance shut down in 2016.

The best quarter was in Dec 2014 when the time between ships was 2.12 days per ship.

However the best turnaround in a ship that I have recorded is 23.5hours.

So the question is whether the limiting factor is the loading at Karara or shipping of material by rail to Geraldton.

As loading at Karara is done by front end loaders, I am unsure whether this is most efficient method.