Over the past 60 years, the company has participated in more than 80 railway trunk lines such as Chengdu-Chongqing, Sichuan-Guizhou, Cheng Kun, Guikun, Xiang Qian, Guizhou-Guangxi, Liu Zhi, Hengguang, Zhejiang-Jiangxi, Beijing-Kowloon, Nankun, Liu Zhu, Qinshen, Huai Yu, Southwest China, Qinghai-Tibet, Lan Xin, Xiangpu, Gui Xiang, Hengcha Road and Meng He. Participated in more than 0/00 expressway trunk lines such as Chengdu-Chongqing, Ji Tai, Huizhou-Hangzhou and Chongqing-Neighbourhood; Rail transit projects in Shanghai, Nanjing, Guangzhou, Shenzhen, Beijing, Shenyang, Chengdu, Xi, Kunming, Tianjin Metro, Shanghai, Dalian and other cities 10; Wuhan Tianhe Airport, Guilin Liangjiang International Airport, Guangzhou International Airport, Shanghai Yanggao Road gas storage tank and other municipal engineering construction; Water conservancy and hydropower projects such as diverting Er from Yunnan to shore, Guiyang from Shanghai, Dujiangyan from Kunming, Hongjiadu Hydropower Station and Suofengying Hydropower Station. While strengthening and expanding its main business, it has actively developed diversified businesses and invested in highway construction, real estate, hotels and other industries, and achieved gratifying results.