USG Umweltservice GmbH & Co. KG
Anhui Shengyun Environment-Protection Group Co., Ltd.Anhui Sheng, China
Daekwang Construction Co., Ltd.
Solios Carbone SA
Bladena ApSSjelland, Denmark
IHI Construction Materials Co., Ltd.
Fuji Furukawa Engineering & Construction Co. Ltd.Kanagawa, Japan
Tokushu Tokai Paper Co., Ltd.Shizuoka-ken, Japan
Daemyung Construction Co., Ltd.
OHBA Co., Ltd.Tokyo, Japan
Toyo Engineering Works, Ltd.
San Nopco Ltd.