On March 22, 2019, as member of INVESTIGATION GROUP OF SCHOOLS & ENTERPRISES, Mr Tian visited surfactant productions enterprises in Linyi and Rizhao, and the whole team visited factories and discussed the development, production, sale and export of surfactants. The experts agreed to cooperate deeply in the field of surfactants. The team members included professor Zhang Heng, head of the Department of Light Chemical Engineering, Oceanographic College of Qingdao University of Science and Technology, Professor Yang Xiaoxia, Ren Dawei, General Manager of Nanjing Zunjin Biotechnology Co., Ltd., Mr Tian, General manager of Qingdao Easthony Inc, and Mr Li, General Manager of Linyi Lusen Chemical Industry.