| Company Name | Type | Status |
|---|---|---|
| S.N.D. LIMITED | Private company limited by shares | Dissolved |
| SNDC Co. Limited | Private company limited by shares | Dissolved |
| SNDE LIMITED | Private company limited by shares | Dissolved |
| SNDO COMMUNICATION SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Hongkong sndway Instrument Company Limited | Private company limited by shares | Live |