The Meeting of the RCARO Standing Advisory Committee (SAC) was held on 21 September 2023 at the iAEA Headquarters in Vienna, Austria, inviting representatives from Australia, Viet Nam, China, Republic of Korea and the IAEA. The Meeting reviewed the progress, status and the future plan of the RCARO activities, focusing on its role as a Think-tank for the RCA, launch of the RCA-US DOE partnership project and implementation of RCA cooperative research activities. The report of the Meeting will be presented to the 52nd RCA General Conference on the next day.