| YAU LI TUGBOAT LIMITED | Private company limited by shares | Live |
| HONG KONG CHUN HING (TUGBOAT) SHIPPING LIMITED | Private company limited by shares | Dissolved |
| Tugboat International Limited | Private company limited by shares | Live |
| MODERN SKY TUGBOAT DEVELOPMENTS LIMITED | Private company limited by shares | Live |
| NANYANG TUGBOAT LIMITED | Private company limited by shares | Dissolved |
| NANYANG TUGBOAT LIMITED | Private company limited by shares | Live |
| SUN ON (TUGBOAT) SHIPPING COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 30-Jun-2003 |
| STARWAY TUGBOAT CO. LIMITED | Private company limited by shares | Live |
| KAM WING TUGBOATS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SHING HEI TUGBOATS LIMITED | Private company limited by shares | Dissolved |