
China Nonferrous Metal Guilin Geology & Mining Co. Ltd.

Nichireki Co., Ltd.Tokyo-to, Japan

Ichikawa Koumuten Co., Ltd.

Taiheiyo Engineering Co., Ltd.

NCS Subsea, Inc.Texas, United States

Development Research Center of China Geological Survey

Geologian Tutkimuskeskus GtkSouthern Finland, Finland

Meiji Consultant Co., Ltd.

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

IDEEMATEC Deutschland GmbHBayern, Germany

Oyo Corp.Tokyo-to, Japan

YAMAU HOLDINGS CO., LTD.Fukuoka-ken, Japan