Aug 31 (Reuters) - Rio Tinto (LON:RIO) Ltd RIO.AX :
* RIO TINTO NOTES TRQ UPDATE ON OYU TOLGOI-RIO.AX
* RIO TINTO - CONTINUES TO TARGET FIRST SUSTAINABLE PRODUCTION FROM OT UNDERGROUND PROJECT BETWEEN OCTOBER 2022 & JUNE 2023
* RIO TINTO LTD - NOTES TURQUOISE HILL RESOURCES' PUBLICATION OF ITS '2020 OYU TOLGOI TECHNICAL REPORT' IN RELATION TO OYU TOLGOI
* RIO TINTO LTD - ON OYU TOLGOI, CO CONTINUES TO TARGET DEVELOPMENT CAPITAL OF $6.6 TO $7.1 BILLION, BASED ON UPDATED MINE DESIGN