AbstractIt was our great pleasure to welcome all presenters/authors to the 5th Asian Conference on Environmental, Industrial and Energy Engineering (EI2E 2021). EI2E 2021 was organized by the Asia Pacific Institute of Science and Engineering (APISE). Due to the COVID-19 pandemic, the local government issues many limitations on domestic and international travelling. Thus most of the authors chose the online presentation mode. In consideration of the authors’ safety, to enable more authors to participate, and to reach a wider audience for the conference, EI2E 2021 was finally held as a hybrid conference via Tecent Meeting Software during May 20 to 22, 2021.EI2E 2021 is the international conferences for presenting novel research progress in the fields of Energy and Environmental research. It also serves to foster communication among researchers and practitioners working in a wide variety of areas with a common interest in improving environment protection. The conference enabled many researchers, engineers, and practioners from all over the world to present their most recent achievements. The participants are from Thailand, Canada, Saudi Arabia, Indonesia, Morocco, Peru, China, etc.The conference featured 3 Keynote Speakers (40 minutes each, including Q&A). In addition, the program included 2 oral sessions and 1 poster session. The papers in the oral sessions were allotted 12 minutes each for presentation. Following the end of each session, the audience engaged in technical dialogues and discussed possible ways for future collaboration. A group photo was taken at the conference.List of Committees are available in this pdf.
