Shanghai Hudong Sanzo Marine Machinery Co. Ltd.Shanghai Shi, China
KriStar Enterprises, Inc.California, United States
Nordkalk Oy AbFinland
Zongyi Stone Development Co. Ltd.
Shenzhen Zhongzhuang Garden Construction Engineering Co., Ltd.
Shanghai Municipal Engineering Design Inst (Group) Co., Ltd.
Vereinigte Schmiedewerke GmbHGermany
ROCKWOOL Ltd.United Kingdom
Failure Group, Inc.
East China Engineering Science & Technology Co., Ltd.Anhui Sheng, China
Celcore, Inc.North Carolina, United States
Sichuan Railway Construction Co. Ltd.Sichuan Sheng, China