| SIAO LIM LIMITED | Private company limited by shares | Dissolved |
| SIAO ADVISORY LIMITED | Private company limited by shares | Live |
| Siao Trade Development Co., Limited | Private company limited by shares | Live |
| SIAO (HK) INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Siao Trade Limited | | Live |
| SIAO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Dan Er Siao International Food Trading Limited | Private company limited by shares | Live |
| SIAO INT'L INDUSTRIAL AND TRADING LIMITED | Private company limited by shares | Live |
| SIAO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Wu Bao Siao Health Training Centre Limited | Private company limited by shares | Dissolved |