On September 12-13, Yi Xin （怡欣）came back with her colleagues in China Academy of Meteorological Sciences (CAMS) visited our group.   We had a meeting on environmental radiocarbon and 14C-AMS facility. Sanyuan (三元）gave a talk introducing the technical settlement of ¹⁴C-AMS, and Gan complementarily gave a brief talk on the applications of ¹⁴C. A new MICADAS ¹⁴C facility is to be setup in CAMS, and the two bodies are to collaborate in the future, to which Yi Xin  will be the strong tie.   It is really nice to see Yi Xin back in the group.