
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