| Company Name | Type | Status |
|---|---|---|
| S.D.M Diamonds Limited | Private company limited by shares | Live |
| SDMC TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SDME HK LIMITED | Private company limited by shares | Dissolved |
| SDMK INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| HK SDMS CO., LIMITED | Live | |
| SDMY LIMITED | Live |