
Center Rock, Inc.Pennsylvania, United States

Gakunan Construction Co., Ltd.Tokyo-to, Japan

China Petroleum Engineering & Construction Corp.Beijing Shi, China

Inductotherm Industries, Inc.

Xinjiang Beixin Road & Bridge Group Co., Ltd.

Rolls-Royce Controls & Data Services Ltd.Derby, United Kingdom

Fahrzeugbau Heinz Böse GmbHNordrhein-Westfalen, Germany

Miller Quarries, Inc.

MG Industries, Inc.California, United States

Oyo Corp.Tokyo-to, Japan

Jiangxi Qixin Group Co., Ltd.Jiangxi Sheng, China

Shanghai Shenjie Environment Protection Sci & Tech Co., Ltd.Shanghai, China