Rizhao Sigma Metals Inc.
Rizhao Economic Development Zone 300 Chengdu Road
Changchun Sigma Metals Inc.
FAW Pinion Industrail Park,Automotive Economic Development Area Changchun,Jilin 130011,china
Global Metal Industrial Corp.
Fujisoft Building 9F, 2-26 Nakacho, Omiya-ku, Saitama-shi, Saitama, Japan