Take context from the input text and decide on the accurate relationship between 'Roy Hill' and 'iron ore' from the options provided.
Options: position held, product/material produced, developer, founded by

A dispute emerging between two parties typically triggers claims further up and down the chain as all parties seek to claw back money, with potentially scores of subcontractors involved on a project such as Gorgon, or Gina Rinehart's Roy Hill iron ore venture in WA.
product/material produced