Hu' nan investment group co., ltd
Dongguan development holding co., ltd
Hainan Expressway Company Limited
Modern investment co., ltd
North China expressway co., ltd
Guangdong province expressway development co., ltd
Northeast Expressway Company Limited
Anhui Wantong Expressway Company Limited
Henan Zhongyuan Expressway Co., Ltd.
Fujian development expressway co., ltd
Hubei Chutian Expressway Co., Ltd.
Sichuan Luqiao Construction Group Co., Ltd.
Chongqing Luqiao company limited
Jiangxi Ganyue Expressway Co., Ltd.
Shanghai Pudong Road and Bridge Construction Co., Ltd.
Xizang tianlu co., ltd
Shandong Expressway Company Limited
Jiangsu Hu Ning Expressway Co., Ltd.
Shenzhen Expressway Company Limited
These are A-share listed companies, which are classified as highway bridges. I promise this is the most complete.