Zhongtian Holdings, referred to as Zhongtian Holdings for short, is a large enterprise group focusing on three major sectors: engineering services, real estate and community services, and new material manufacturing. Its headquarters is located in Qianjiang New Town, Hangzhou City, Zhejiang Province, China. Zhongtian Holding Group grasps the development trend of urbanization, industrialization, intelligent informationization and green low-carbon industry, and is determined to build a "green Zhongtian" and become a "green building demonstration enterprise". Based on the whole life cycle of development, design, construction and operation, the Group actively defines the development path of green buildings through planning guidance and demonstration guidance, and promotes the green building industry to take root in all business sectors of the Group. At present, a technical system with zenith characteristics has been initially formed in various building life cycles such as green building development, green building design, green construction and green operation, and has been promoted in many projects across the country.