The CEE has established strong collaborative relationships with more than 30 high-level universities and research institutes from the United States of America (U.S.A.), the United Kingdom (UK), Denmark, Netherlands, Finland, Australia, New Zealand, Sweden, Japan and Korea. Undergraduate Exchange Program, Joint Education Programs of graduate students, and scientific collaborations advanced smoothly with University of Cambridge, University of Reading, University College London, Rutgers University, Lawrence Berkeley National Laboratory, University of Melbourne, University of Sydney, and University of Hong Kong.