
Oyo Corp.Tokyo-to, Japan

Development Research Center of China Geological Survey

Taiheiyo Engineering Co., Ltd.

Nichireki Co., Ltd.Tokyo-to, Japan

China Nonferrous Metal Guilin Geology & Mining Co. Ltd.

JAPAN FOUNDATION ENGINEERING CO., LTD.Hyogo-ken, Japan

Murao Giken Corp.Niigata-ken, Japan

Japan Home Shield Corp.Tokyo-to, Japan

Tokyo Soil Research Co. Ltd.Tokyo-to, Japan

Wuhan Linkedo Engineering Design Co., Ltd.Hubei Sheng, China

Aquatic Informatics, Inc.British Columbia, Canada

Geologian Tutkimuskeskus GtkSouthern Finland, Finland