On May 24, 2015, President Chen Gaozhi, together with Li Mingyuan, mayor of Weinan City, Yao Hongjuan, deputy director of Foreign Affairs Office of Shaanxi Provincial People's government, and other leaders received German Cologne mayor Eugen Rotes and his party to visit Shaanxi and hold talks. The main leaders and guests of Cologne, Germany include: Mr. Eugen rothes and his wife Angela rothes, mayor of Cologne, Mr. josebovich, director of the Economic Promotion Bureau of Cologne, Ms. Willet, Chinese ambassador of Cologne Economic Promotion Bureau, Ms. Meng Zhou, consultant to the mayor of Cologne, and Mr. Bush, general manager of Cologne waste treatment and utilization Co., Ltd. During the meeting and dinner, Chen Gaozhi, chairman of Shaanxi Belt and Road Enterprise Development Promotion Association, introduced the specific situation of the association to the leaders of Cologne. The mayor of Cologne, Mr. rothes, sincerely invited the association to visit Cologne, Germany at an appropriate time to seek business opportunities for cooperation.