Toho Zinc Co., Ltd.Tokyo-to, Japan
Wienerberger GmbH
Huazhijie Plastic Building Material Co. Ltd.
L&L Products, Inc.Michigan, United States
Knauf GmbH
The Chicago Faucet Co.Illinois, United States
Carmeuse SAVlaams-Brabant, Belgium
Shanxi Lanhua Sci-Tech Venture Co., Ltd.Shanxi Sheng, China
Miyama Co., Ltd.Nagano-ken, Japan
LIXIL International Pte Ltd.
Rautaruukki OyjSouthern Finland, Finland
Northern Heavy Industries Group Co., Ltd.Liaoning, China