Hong Kong office 

HOSN International (Hong Kong) Limited

Flat/Rm A25 9/F Silvercorp International Tower, 707-713 Nathan Road,

Mongkok,Kowloon,Hong Kong

TEL. ：(852)23747154

FAX：(852)27549128

Tianjin office 

Tianjin Osborn Technologies Co., Ltd.

Room 437-439, Wuhe Building,NO.487 Huanghe Road,Nankai District, Tianjin, China

TEL. ：(8622)27614897

FAX：(8622)27624897

E-MAIL: osenbo@163.com