ICEI 2021 Shining Points: 1.All accepted papers of ICEI 2021 can be published into International Conference Proceeding, which will be indexed by EI Compendex and Scopus, Thomson Reuters (WoS), Inspec,et al.2.Prof. Jan Baeyens from Beijing University of Chemical Technology, Beijing, China; Prof. Miwako Hosoda from Seisa University, Tokyo, Japan; Prof. Wallace C.H. Choy from The University of Hong Kong, Hong Kong will be our conference committee.3.One day social events will be arranged in Jeju Island, Korea on July 24, 2021. == Submission and Contact MethodsSubmission Methods: http://confsys.iconf.org/submission/icei2021