New Castle Refractories Co.
Seohyun Engineering Co., Ltd.
Alwitra GmbH & Co. Klaus GbelRheinland-Pfalz, Germany
ASung Industrial Development Co., Ltd.
Jiangsu Sutong Bridge Co. Ltd.
Henkels & McCoy, Inc.Pennsylvania, United States
Hitachi Power Europe GmbH
Hilong Pipeline Engineering Technology Service Co., Ltd.
Kyowa Engineering Co. Ltd.
Xin Zhongtian Environmental Protection Co., Ltd.Chongqing Shi, China
Jiangsu Huajian Construction Co. Ltd.
Novabrik International, Inc.Quebec, Canada