Feb 17 (Reuters) - Rio Tinto (LON:) Ltd :
* RIO TINTO LTD - ANNOUNCES CHANGES IN MINERAL RESOURCES AND ORE RESERVES FOR PILBARA IRON ORE DEPOSITS
* RIO TINTO-MINERAL RESOURCES (ALL INFERRED) FOR ARROWHEAD & RHODES RIDGE MAIN HAS INCREASED BY 418 MT OF BROCKMAN ORE, AMONG OTHERS