-
Time：October 9th – October 26th, 2018
Location: Beijing, China
-
Time：May 1st – May 20th, 2019
Location: Beijing, China
-
Time：9 Nov-11 Nov, 2020
Location: Beijing, China (On-line)
-
Time：28–31 Oct., 2021
On-line (Zoom)
-
Time：20-24 Nov, 2022
On-line (Zoom)
-
Time：November 4th-18th,2023
Beijing, China
