The company was officially established in 1982. It is one of the longest professional development, the earliest market-based operation, the highest degree of integration, and the largest investment and construction group in the world. The company's main business includes housing construction, infrastructure construction and investment, real estate development and investment, survey and design, overseas business, first-level development of operating land, machinery and equipment leasing, and project supervision. Corporate honors: As the world's largest engineering contractor, China Construction ranked 21st in the “Fortune Global 500” 2019 list; it has been ranked in the top 3 for 7 consecutive years in the “Fortune” “China Top 500” rankings. China Construction received grade A in the annual assessment of the State Council's State-owned Assets Administration Commission 14 times. The three major international rating agencies S&P, Moody's, and Fitch rated Chinese construction as A/A2/A. The outlook is to maintain “stability” and maintain the highest credit rating in the world in the industry.