On November 15, the High Tech Expo-2022 China Environment Expo (Shenzhen) opened at the Baoan New Hall of Shenzhen International Convention and Exhibition Centre. Nearly 800 companies with over 1,000 environmental management technologies and solutions made a grand appearance, showcasing iterative technologies and innovative achievements in environmental protection segments such as water, solid waste, air and soil for visitors in a display area of nearly 80,000 square meters.