On March 27th, 2019, Sino-German Eco-Cities Expert Review Meeting organized by CSUS and DENA was held in Beijing. Huancui District of Weihai, Rencheng District of Jining, Guigang, Sino-German Ecological Park in Qingdao and "Sino-German Eco City Demonstration and Pilot Area" in Taicang participated in the Review Meeting. Wolf Zahn, Chief Planner of Albert Planning and Design Institute of Germany, Design Director of ARCHILAND, was invited to the Review Meeting as the judge.

Wolf Zahn introduced German experience in eco-cities. The construction of ecological city is a social behavior that requires the joint efforts of the entire society.