| TECHMASTER DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| TECHMASTER HOLDING LIMITED | Private company limited by shares | Dissolved |
| TECHMASTER (HONG KONG) PTE LIMITED | Private company limited by shares | Dissolved |
| Techmaster Industrial Co., Limited | Private company limited by shares | Dissolved |
| TECHMASTER INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| Techmaster International Limited | Private company limited by shares | Live |
| TECHMASTER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TECHMASTER WELL SERVICES (HK) LIMITED | Private company limited by shares | Dissolved |