On Oct. 18th, Prof. Niu Dawen from Sichuan University came to the PKU for academic report. Guided by Prof. Zhang, he toured the various instruments and display boards of our group. He is currently working at the National Key Laboratory of Biotherapy, West China Hospital, Sichuan University, where he has long been engaged in developing new methods to solve the problem of sugar synthesis. Thank Prof. Niu Dawen for his visit!