
Xiamen Yangde Co., Ltd.

Shanghai Biofit Environmental Technology Co., Ltd.

Chien Kuo Construction Co., Ltd.Taiwan Province, China

Doosan Engineering & Construction Co., Ltd.

Paul Becker GmbhBaden-Wurttemberg, Germany

Fairfield Engineering Co.United States

Jiangsu South&East Geotechnical Technology Co., Ltd.Jiangsu Sheng, China

Yahagi Construction Co., Ltd.Aichi-ken, Japan

DO-A Industrial Co., Ltd.South Korea

Erfis GmbH

Meiji Consultant Co., Ltd.Hokkaido, Japan

Caverion Deutschland GmbHGermany