In August 2020, Shenzhen-Shenzhen Expressway Infrastructure Environmental Development Co., Ltd., a wholly-owned subsidiary of Shenzhen-Shenzhen Expressway, held a 50% stake in Shenzhen-Shenzhen Special Cooperation Zone Qiantai Technology Co., Ltd. (Qiantai Technology) through acquisition and capital increase. Qiantai Technology has the "Qualification for Recycling and Dismantling Scrap Vehicles". In 2020, it was selected as an enterprise that meets the "Industry Specifications for Comprehensive Utilization of Waste Power Batteries for New Energy Vehicles" by the Ministry of Industry and Information Technology of the People's Republic of China, and has been recognized as a national high-tech enterprise. It is a power battery aftermarket Recycling application, a company dedicated to the integration of upstream and downstream multi-faceted industries of industrial solid waste energy and resource utilization. Based on the comprehensive utilization technology of batteries and the development of intelligent equipment, Qiantai Technology has built a flexible dismantling line with an annual dismantling capacity of 40,000 scrapped vehicles and a flexible and intelligent dismantling production line with an annual dismantling capacity of 30,000 tons of retired power batteries. , The PACK intelligent production line of cascade utilization battery products with an annual production capacity of 20,000 sets and the physical and environmental protection separation production line of scrapped power batteries with an annual dismantling capacity of 7,200 tons, etc., have formed an innovative and industrialized pilot demonstration operation. The equipment production line in the park has industry-leading advantages, and has been included in the national 13th Five-Year major construction projects, major projects in Guangdong Province, and major projects in Shenzhen.