Room 1606/Financial Square
333 Jiu Jian Road
Shanghai
P.R. China

Phone: +86 21 6350 6874
Phone: +86 21 6302 2160
Fax: +86 21 3304 0702
info(at)gtec.com.hk

Unit 1603, Eton Tower
8 Hysan Avenue
Causeway Bay, Hong Kong HK
P.R. China

Phone: +852 2722 7702
Phone: +852 2368 6282
Fax: +852 2722 7726
info(at)gtec.com.hk

see map