分类: 钴金属

Pengxin International Mining Co., Ltd.

Xiamen Tungsten Co., Ltd.

Chengtun Mining Group Co., Ltd.

BGRIMM Technology Co., Ltd.

China Railway Group Limited

Metallurgical Corporation of China Ltd.

Power Construction Corporation of China, Ltd.

Zijin Mining Group Co., Ltd.

Hainan Mining Co., Ltd.

China Nerin Engineering Co., Ltd.

Zhejiang Huayou Cobalt Co., Ltd.

CMOC Group Limited

Ningbo Ronbay New Energy Technology Co., Ltd.

Earth-Panda Advanced Magnetic Material Co., Ltd.