"The ramp up of Roy Hill is likely to be key to the iron ore market over the remainder of 2015 and into early 2016 as it represents the biggest increase over that period until Vale's S11D completes in late 2016, early 2017," Lawcock says.
Analyze the relationship between 'Roy Hill' and 'iron ore' within the context of the input sentence.
Options: business division, platform, product/material produced, subsidiary