Joint Stock Company for Telecoms and Informatics (CTIN) is the leading company operating in the fields of telecommunications, information technology, and automation solution for smart buildings. CTIN is the first enterprise to develope projects of mobile networks in Vietnam. As the first ranked company in Vietnam with the biggest market share in services of construction and installation, integrated infrastructure of mobile network for the largest GSM developers of Vinaphone, Mobifone, the company is ranked in SI TOP by Cisco . CTIN provides products and services are flexible to meet the diverse requirements of customers. In addition the company also contributed capital to other companies such as ITTA, VNTT, NEO, VNPT 5G