Transtech Optelecom Science Holdings Limited
- Homepage
- Investor Relations
Phone ：（852）2665 7799
Fax ：（852）2665 7881 
E-mail ： enquiry@transtechoptel.com 
Address (Hongkong): No.3 Dai Kwai Street, Address (Thailand): No. 7/324 Moo 6, Marbyangporn Sub-district, Plaukdaeng