Tanaka Iron Works Co., Ltd.
Guangzhou Hanyuan Construction Eng Quality Inspection Co. Ltd.Guangdong Sheng, China
The Third Construction Engineering Co. Ltd.
Beijing Sanlian Hope Shin-Gosen Technical Service Co., Ltd.Beijing Shi, China
FORTA Corp.Pennsylvania, United States
thyssenkrupp Infrastructure GmbHNordrhein-Westfalen, Germany
Zhejiang Hydropower Construction & Installation Co., Ltd.
Peace Map Co., Ltd.Beijing Shi, China
Beijing Oriental Yuhong Waterproof Technology Co., Ltd.
Zhejiang KeFei Technology Co., Ltd.Zhejiang Sheng, China
EDAG GmbH & Co. KGaAHessen, Germany
Saint-Gobain TM KK