| Company Name | Type | Status |
|---|---|---|
| ProAir Conditioning (Asia) Limited | Private company limited by shares | Live |
| DELPHIN PROAIR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PROAIR INT'L FREIGHT FORWARDER LIMITED | Private company limited by shares | Live |
| PRO-AIR (HONG KONG) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PRO-AIR INDUSTRIAL (HK) LIMITED | Private company limited by shares | Dissolved |