| SEMIR BUSINESS LIMITED | Private company limited by shares | Live |
| SEMIR COMPONENTS CO., LIMITED | Private company limited by shares | Live |
| SEMIR INTERNATIONAL GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| SEMIR INTERNATIONAL GROUP (HK) LIMITED | Private company limited by shares | Live |
| Semir Group Holding (HK) Limited | Private company limited by shares | Live |
| SEMIR HOLDING (HONGKONG) LIMITED | Private company limited by shares | Live |
| Semir (Hongkong) Investment Limited | Private company limited by shares | Live |
| FINLAND SEMIRA INT'L CHEMURGY LIMITED | Private company limited by shares | Dissolved |
| SEMIRA TRADING LIMITED | Private company limited by shares | Live |
| SEMIRAY ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| Semird Limited | Private company limited by shares | Live |
| SEMIRECYCLING HK LIMITED | Private company limited by shares | Live |
| SEMIRIM LIMITED | Private company limited by shares | Live |