Relating this to the Australian iron ore stocks in its coverage, UBS has calculated how much its forecast base net present values would increase if iron ore prices remain stronger for longer. The increases range from 11% for BHP Billiton to 14% for Mount Gibson ((MGX)), 19% for Rio Tinto, 33% for Fortescue Metals ((FMG)) and 35% for Gindalbie Metals ((GBG)). Source FNA