GSI Enterprises Ltd
Room 2402, Nan Fung Tower, 173 Des Voeux Road C., Hong Kong
Tel: 2815 3165
Fax: 2543 9210
E-mail: info@gsienterprises.com

Telen International Limited
Room 1522, Star House, 3 Salisbury Road, TST, Kowloon
Tel: 2376 3118
Fax: 2351 3041
E-mail: telen@netvigator.com