
China Construction Science & Technology Group Co. Ltd.

STARCON International, Inc.Texas, United States

MENCK GmbHSchleswig-Holstein, Germany

Poppin, Inc.New York, United States

Locinox NVWest-Vlaanderen, Belgium

Duo-Fast Corp.Illinois, United States

Robusta-Gaukel GmbH & Co. KGGermany

Daekwang Construction Co., Ltd.

The Roberts Co.North Carolina, United States

Western Mechanical, Inc.

Zhongneng United Digital Technology Co., Ltd.Jiangsu, China

Jiangsu Zhongchao Environmental Technology Co., Ltd.Jiangsu Sheng, China