BRIEF-Rio Tinto says to sell Mason Resources Corp stake By: Reuters: Company News August 04, 2017 at 09:08 AM EDT * 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 Read More >> Related Stocks: Mach Natural Resources LP Rio Tinto Plc ADR Turquoise Hill Resources Ltd