
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.