The China State Construction Engineering Corporation (CSCEC) is the largest construction company in the world by revenue and the 14th largest general contractor in terms of overseas sales, as of 2016.
The CSCEC was founded in 1957 as a state company. The CSCEC has numerous branches or subsidiaries.
It is divided into five main divisions and twelve traditional core business areas, including eight Group's engineering offices and four Design Institutes, as well as its own national research laboratory.
The main business units of the group are planning and design, project development, equipment leasing, trade, construction and facilities management.
According to en.wikipedia