Hanjia Digital Intelligence Science and Technology Group Co., Ltd., together with its subsidiaries, provides urban governance, design and consulting services, and EPC general contracting services in China. The company offers urban operation management service platforms, urban lifeline engineering, and smart water management and water conservancy solutions; and technical support services, such as AI middleware, large model platform, and data infrastructure, as well as solutions for multi-source data acquisition, data governance, data application, and data assetization. It also provides urban governance robot solutions for waste sorting, sanitation and cleaning, urban inspection, and solid waste sorting robot scenarios; and urban sanitation and waste sorting services. In addition, the company offers design services comprising planning, architecture, municipal utilities, environmental sanitation, landscape architecture, gas and heating systems, interior and exterior decoration, geotechnical engineering, river management, intelligent systems, curtain walls, and floodlighting; and development plans for various professional industries, project feasibility studies, application reports, project evaluations, post- evaluations, full-process consulting, and construction drawing review, etc. Further, it undertakes EPC turnkey projects, including construction, municipal engineering, environmental sanitation, decoration, and landscape engineering. The company was formerly known as Hanjia Design Group Co., Ltd. and changed its name to Hanjia Digital Intelligence Science and Technology Group Co., Ltd. in January 2026. The company was incorporated in 1998 and is based in Hangzhou, China. Hanjia Digital Intelligence Science and Technology Group Co., Ltd. operates as a subsidiary of Zhejiang Chengjian Construction Group Co., Ltd.