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China Railway Electrification Engineering Group Co., Ltd. was born in 1958 with the construction of China's first electrified railway. It has now developed into a large enterprise group integrating engineering construction, survey and design, scientific research and development, industrial manufacturing, testing and inspection, engineering supervision, materials trade and logistics, operation and maintenance management, real estate development, and investment and financing - a 'ten-in-one' conglomerate. It is an important member of China Railway Construction Corporation Limited, a Fortune Global 500 and World's Most Valuable Brands company.

It is the national team and main force in the construction of China's electrified railways and urban rail transit. Headquartered in Beijing, its business scope covers over 20 countries and regions nationwide and overseas, with a workforce of more than 12,000. It has participated in the construction of over 70% of domestic electrified railways, over 60% of high-speed railways, and over 70% of urban rail transit projects. It boasts the world's largest production base for railway electrification and metro overhead contact line systems, with its suspension products accounting for over 70% of the country's operating rail transit lines. It holds two special-grade qualifications for general contracting in railway engineering and building engineering, 38 general contracting qualifications including mechanical and electrical engineering, communication engineering, municipal public works, and power engineering, as well as 54 professional contracting qualifications, 4 Class A design qualifications, and various qualifications for transportation, surveying and mapping, testing and inspection.

As a leading and professional electrification technology innovation enterprise group, it has established a technical system covering three modes: heavy-haul, long-distance trunk lines, and high-speed railways. It has fully mastered the technology for high-speed electrified railway design and construction, system integration management, and the R&D and production of key products for high-speed railway traction power supply systems. It has built a Chinese high-speed railway traction power supply technology platform with fully independent intellectual property rights.

It is the designated unit for the harmonization of traction power supply technical standards in the railway industry and the supporting unit of the Electrification Committee of the China Railway Society. It has 2 national-level R&D platforms, 17 provincial and ministerial-level R&D platforms, 1 national-level skill master studio, and 9 national metrology accreditation laboratories. It has won 19 national science and technology awards, 252 provincial and ministerial-level science and technology awards, developed 713 construction methods, and obtained 842 national authorized patents. It boasts numerous provincial and ministerial-level experts with outstanding contributions.

It is a promoter and pacesetter in intelligent construction of rail transit. It possesses internationally advanced professional construction equipment such as constant-tension wire-laying vehicles, dynamic inspection vehicles for overhead contact lines, and shield tunneling machines, as well as a large number of self-developed engineering equipment including intelligent assembly lines, intelligent pole-erecting vehicles, and inspection robots. It conducts in-depth R&D and application of new technologies based on big data, the Internet, 5G, and Beidou navigation, promotes intelligent construction practices and smart site construction, and has created a new benchmark for intelligent construction of high-speed railway 'four-electric' systems.

It is a pioneer in taking China's advanced railway technology abroad. From specialized subcontracting to system general contracting and then to EPC turnkey projects, and from industrial product output to technical standard output, it is an important force in the 'going global' of China's rail transit industry and the implementation of the 'Belt and Road' initiative. It has successively participated in the construction of the Tanzania-Zambia Railway, China's first aid-exported cross-border railway, and has undertaken more than 20 projects in countries and regions such as Iran, Uzbekistan, Belarus, Sri Lanka, Pakistan, Indonesia, and Israel, forming a new pattern of international market development supported by five regional markets: the Middle East, Central Asia, South Asia, Southeast Asia, and Central and Eastern Europe.