| KARTRON LIMITED | Private company limited by shares | Live |
| KARTRON TRADING (CHINA) LIMITED | Private company limited by shares | Live |
| KARTRON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KARTRON INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| KARTRON TRADING LIMITED | Private company limited by shares | Live |
| K-ARTS DECORATION CO., LIMITED | Private company limited by shares | Live |
| KARTS ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| LE MANS RACING KARTS LIMITED | Private company limited by shares | Dissolved |
| Penguin Karts Limited | | Live |
| KARTS SPORTING LIMITED | Private company limited by shares | Dissolved |
| Karts Studio Limited | Private company limited by shares | Live |
| KARTS2 LIMITED | | Live |
| KARTS3 LIMITED | | Live |
| KARTUN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| KARTUO CO., LIMITED | Private company limited by shares | Live |
| KARTURN COMPANY LIMITED | Private company limited by shares | Dissolved |