According to enterprise data, China Railway Communication Signal Group Co., Ltd. (abbreviated as China Unicom, stock code: 688009. SH, 03969.HK) is a large-scale central enterprise directly supervised by the State-owned Assets Supervision and Administration Commission of the State Council, a high-tech industrial group featuring rail transit control technology, and a leading global rail transit control system provider. Hao Tong, China has a complete industrial chain of investment and financing, design and development, system integration, equipment manufacturing, engineering services, operation and maintenance, and is the centralized unit for equipment standards, technical standards and product standards of China rail transit control system.

China Hao Tong was rated as Grade A in the performance appraisal of central enterprises for four consecutive years, and successfully landed on the Hong Kong Stock Exchange in 20 15, and landed on the science and technology innovation board Stock Exchange as the first central enterprise and the first A+H company in 20 19. At present, there are 14 important secondary enterprises with more than 20,000 employees.

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