
HUDIGM Architects & Engineeing Co., Ltd.

Beijing Chengjianshi Construct Engineering Co., Ltd.

Wabtec Control Systems Pty Ltd.

Hangzhou Huaneng Engineering Safety Technology Co.,Ltd.

Meiko Construction Co., Ltd.Nagano-ken, Japan

Suzhou Secote Precision Electronic Co., Ltd.

Greenwall, Inc.California, United States

Nichiryoku Co., Ltd.Tokyo, Japan

Next Square Co., Ltd.

EVECO Brno sro

Third Construction Engineering Co., Ltd. of China Const

Fujian Zhangzhou Expressway Co., Ltd.