On July 23, DRC President Li Wei met with Prof. Jeffrey Sachs, Director of the Earth Institute of Columbia University. President Li exchanged views with guests on topics covering sustainable development, China’s economic reform, UN sustainable development solution network, etc. Mr. Lan Weiban, Deputy Director General of International Cooperation Department, and Dr. Zhang Yongsheng, Deputy Director General of Research Department of Development Strategy and Regional Economy, were present at the meeting.