KOCKS Technik GmbH & Co. KG
Helix Enterprises, Inc.
Schwrer Haus KGBrandenburg, Germany
Zhengzhou Water Conservancy Construction Project Co., Ltd.
Control Concepts Corp.Georgia, United States
Entecho Pty Ltd.
China United Engineering Corp.
Allied Mineral Products, Inc.Ohio, United States
Yunnan Construction & Investment Holding Group Co., Ltd.
Anhui Huizhou Geology Security Institute Co., Ltd.
Beijing Jianghe Curtain Wall System Engineering Co., Ltd.
Baas BVZuid-Holland, The Netherlands