Runjian Co., Ltd., a communication technology service company, engages in the communication network construction and maintenance business in China. The company offers communication network engineering, design, construction, and operation and management services; and information technology and communication integration, and cloud and data center services. It also engages in the building, operation, and maintenance of the telecom infrastructure network to the development and operation of various supporting platforms and application systems for smart education, agriculture, transportation, and policing systems, as well as for training program platform. In addition, the company offers AI and big data services, high tech business solutions, smart city resource management, smart platforms, 5G and Internet of Things, and ERP integrated solutions, as well as power equipment. Further, it provides power engineering construction and installation services. The company was formerly known as Runjian Communication Co., Ltd. and changed its name to Runjian Co., Ltd. in April 2019. The company was founded in 2003 and is headquartered in Guangzhou, China.