Huajian Group East China Architectural Design and Research Institute Co., Ltd. (ECADI) is one of the first state-owned major architectural design consulting companies in New China. As the vanguard of urban and rural construction in the country, the East China Institute is actively involved in the main areas of national strategic development, headquartered in Shanghai and Shenzhen, as well as key regions and important cities throughout the country, such as the Yangtze River Delta, the Great Bay, District, Beijing-Tianjin-Hebei, Central China, Southwest and Northwest.