ITEC CORP.
TianJin Urban Construction (Group) Co. Ltd.
Parker Drilling Co.Texas, United States
Hokuriku Gas Co., Ltd.Niigata, Japan
Single Well Industrial Corp.T'ai-pei, Taiwan
Seven Industries Co., Ltd.Gifu, Japan
YOSHIDA-GUMI, Inc.Hyogo, Japan
Heijmans NVNoord-Brabant, The Netherlands
Jujiang Construction Group Co., Ltd.