Rio Tinto Identifies Additional 2 Billion Tons of Iron Ore in Western Australia

BANGALORE, INDIA--December 1, 2010--Researched by Industrial Info Resources (Sugar Land, Texas)--Rio Tinto plc's (NYSE:RIO) (London, England) program to reinterpret and re-estimate its iron ore resources at 14 deposits in the Pilbara region of Western Australia has resulted in the announcement of a 2 billion-ton increase in the company's mineral resource base.