| TONYA LIMITED | Private company limited by shares | Dissolved |
| TonYa Limited | Private company limited by shares | Live |
| Tonya Bioscience Co., Limited | | Live |
| TONYA DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Tonya Display Limited | Private company limited by shares | Live |
| Tonya Aluminum Material (HK) Trading Limited | Private company limited by shares | Live |
| HongKong Tonya Limited | | Live |
| TONYA ICHIBAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| TONYA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Tonya International Limited | | Live |
| TONYA LIGHTING TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TONYAER COMPANY LIMITED | Private company limited by shares | Live |