Contact Us
| Tel: | (852) 2647 2976 |
| Enquiry : | enquiry@opensys.com.hk |
| Support : | support@opensys.com.hk |
| Address : | 22/F, 9 Chong Yip Street, Kwun Tong, Kowloon, Hong Kong. |
| Tel: | (852) 2647 2976 |
| Enquiry : | enquiry@opensys.com.hk |
| Support : | support@opensys.com.hk |
| Address : | 22/F, 9 Chong Yip Street, Kwun Tong, Kowloon, Hong Kong. |
