On November 23-24, 2020, the 4th CJPL International Advisory Committee (CJPL-IAC) Meeting was held online.

        All members of CJPL-IAC and the related experts from Tsinghua University, Yalong River Hydropower Development Company, Ltd., Shanghai Jiaotong University, China Institute of Atomic Energy, Sichuan University, Fudan University, and the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences attended the meeting. The meeting was chaired by Professor John Ellis, Chairman of CJPL-IAC.

        IAC members listened to the reports on the current status of CJPL-I and CJPL-II, the background control, progress of the DURF construction, and progress of the experiments including CDEX, PANDAX, JUNA, Jinping Neutrino Experiment, CUPID-China, NvDEX, and Rock Mechanics. Participants had a lively discussion on the construction and development of CJPL, and progress of the scientific experiments. Finally, IAC provided valuable opinions and suggestions on the operation, safety management and the future development of the experiments.