| REACTION LIMITED | Private company limited by shares | Dissolved |
| Reaction Limited | Private company limited by shares | Live |
| Rex ReAction Limited | | Live |
| CHAIN REACTION LIMITED | Private company limited by shares | Dissolved |
| RE.ACTION CREATIVE COMPANY LIMITED | Private company limited by shares | Live |
| ELEMENTS REACTION CO., LIMITED | Private company limited by shares | Live |
| Reaction Products International (Hong Kong) Limited | Private company limited by shares | Dissolved |
| REACTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Reaction Products Limited | Private company limited by shares | Live |
| REACTION & RELUXE LIMITED | Private company limited by shares | Live |
| BUSINESS TECHNOLOGY REACTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Reaction Technology Service Limited | Private company limited by shares | Live |