1 Harbin Hagang Jewelry Co., Ltd. Address: the north side of the west side of the intersection of Changchun Street and Beishierdao Street, Daowai District, Harbin.

Huarui Gem Company Address: Innovation Street 137, nangang district, Harbin.

3 Longhua Gold and Silver Jewelry Processing Factory Address: No.70, Duokou Street, Daoli District, Harbin Tel: 045 1-8469995 1

4 Oriental Gold and Silver Jewelry Processing Factory Address: No.76-2 Gongcheng Street, Daoli District, Harbin Tel: 045 1-84285287