Beijing Information Infrastructure Construction Co. Ltd.
Conrad Industries, Inc.Louisiana, United States
Fenix Group, Inc.Minnesota, United States
Caverion Suomi Oy
friedrich GmbHGermany
Stingl GmbHBayern, Germany
China Coal Mine Construction Group Co. Ltd.Anhui Sheng, China
Brothers, Inc.Pennsylvania, United States
Haneda Concrete Industrial Co., Ltd.
Beijing Oriental Yuhong Waterproof Technology Co., Ltd.
HBIS Resources Co., Ltd.Hebei, China
Forterra Pipe & Precast LLC