China Railway Eighth Bureau Group Co., Ltd. is a key member of China Railway, one of the top 500 enterprises in the world. Tracing back to the development process, it was founded in chengdu-chongqing railway, started construction, and rose with the increasing access of high-speed rail network. With a history of more than 70 years, it has been paving the way for the construction of Socialism with Chinese characteristics in the new era. Headquartered in Chengdu, Sichuan Province, the Group is a state-owned super-large enterprise group integrating construction, engineering survey and design, investment and management, industrial equipment manufacturing, real estate development, warehousing and logistics, and concrete products, with a registered capital of 5.9 billion yuan. The Group holds the qualification of 124 construction enterprise. Among them, railways, highways and buildings are the third-level general contracting special qualifications; 55 first-class qualifications such as general contracting of water conservancy and hydropower engineering construction, general contracting of municipal public works construction, professional contracting of bridge engineering and professional contracting of tunnel engineering. The Group has 9 wholly-owned subsidiaries, 3 branches (including survey and design institutes), 5 regional headquarters and 1 national recognized enterprise technology centers. There are nearly 1. 1 10,000 employees, including more than 900 first-class builders, more than 70 senior engineers, senior economists and senior accountants, and more than 7,000 senior and middle-level professional technicians and managers. The Group owns more than 6,000 sets of various construction equipment, with an annual construction capacity of more than 80 billion yuan. It is in a leading position in the fields of high-speed railway, urban rail transit, long tunnels, high-grade highways, high-rise buildings, new bridges, deep-water foundation, water conservancy and hydropower.