| LONGCOM LIMITED | Private company limited by shares | Dissolved |
| LONGCOM CHEMISTRY LIMITED | Private company limited by shares | Live |
| LONGCOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| Longcom Industrial Limited | Private company limited by shares | Live |
| LONGCOME LIMITED | Private company limited by shares | Dissolved |
| LONGCOME INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LONGCOME PRODUCTS LIMITED | Private company limited by shares | Live |
| LONGCOMEX HK LIMITED | Private company limited by shares | Dissolved |