On June 20, 2021, Onis Environmental welcomed the senior environmental expert of the Norwegian Institute of Water Research and the general manager of the China Office Sun Yangzhao to visit our company. Our general manager Dong Bin, the technical center director Wang political commissar and other company leaders and Experts and teachers from Nanjing University of Science and Technology and Nanjing University of Technology gathered together with the guests to have full and enthusiastic exchanges on environmental protection technology research and development and application, environmental protection market development and co-construction.