EI2E 2020 will be held in Novotel Guiyang Downtown(贵阳诺富特酒店), Guiyang, China during October 15-17, 2020! The conference is organized by Asia Pacific Institute of Science and Engineering(APISE). The conference is an international forum for the presentation of technological advances and research results in the fields of Environmental, Industrial and Energy Engineering. The conference will bring together leading researchers, engineers and scientists in the domain of interest from around the world. We warmly welcome prospected authors submit new research papers to EI2E 2020, and share the valuable experiences with the scientist and scholars around the world.