Transtech Optelecom Science Holdings Limited
- Homepage
- Investor Relations
Phone ：（852）3970 2257
Fax ：（852）2598 1588 
E-mail ： tocclir@wsfg.hk 
Address (Hongkong): No.3 Dai Kwai Street, Address (Thailand): No. 7/324 Moo 6, Marbyangporn Sub-district, Plaukdaeng 