ICBEM 2021 Shining Points: 1. Accepted papers can be published in International Conference Proceeding, which is indexed by EI Compendex, Scopus, Thomson Reuters (WoS), Inspec,et al.Or IJBBB(ISSN: 2010-3638) and be included in the Engineering & Technology Digital Library, and indexed by WorldCat, Google Scholar,Cross ref, ProQuest or Journal of Environmental Science and Development (IJESD, ISSN:2010-0264), all accepted papers will be indexed by Scopus (Since 2019) and included in the Chemical Abstracts Services (CAS), CABI, Ulrich Periodicals Directory, Electronic Journals Library, Crossref, ProQuest. 2. Three Outstanding Professors have joined as Speakers. They are Prof.Dr. Gerrit Schüürmann from Technical University Bergakademie Freiberg, Germany, Prof. Maria Liakopoulou-Kyriakides from Aristotle University of Thessaloniki, Greece and Prof. Roberto San Jose from Technical University of Madrid (UPM), Madrid, Spain. 3. One day visit will be organized on August 8, 2021 in Hangzhou,China. == Submission and Contact Methods:Submission System: http://confsys.iconf.org/submission/icbem2021