Aug 4 (Reuters) - Rio Tinto Plc RIO.L :
* RIO TINTO TO SELL MASON RESOURCES CORP. SHAREHOLDING
* RIO TINTO HOLDINGS AND TURQUOISE HILL HAVE AGREED TO SELL, RESPECTIVELY 7.5 MLN COMMON SHARES AND 6.2 MLN COMMON SHARES OF MASON RESOURCES CORP
* SALE AT A PRICE OF $0.20 PER SHARE IN CASH FOR AN AGGREGATE PURCHASE PRICE OF $2.7 MLN
* SHARES TO BE SOLD BY RIO TINTO HOLDINGS AND TURQUOISE HILL COLLECTIVELY REPRESENTED APPROXIMATELY 17.56 PER CENT OF OUTSTANDING MASON SHARES
* AFTER GIVING EFFECT TO FOREGOING SALE, RIO TINTO WILL NO LONGER OWN (OR BE DEEMED TO BENEFICIALLY OWN) ANY MASON SHARES
* SALE OF MASON SHARES IS EXPECTED TO BE COMPLETED WITHIN NEXT SEVEN DAYS