| Nikka Company Limited | Private company limited by shares | Live |
| NIKKA (CHINA) LIMITED | Private company limited by shares | Dissolved |
| HANWA NIKKA LIMITED | Private company limited by shares | Live |
| NIKKA REFORM LIMITED | Private company limited by shares | Live |
| SHANGHAI NIKKA TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| NIKKA TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Nikkan Motor Engineering Limited | Private company limited by shares | Live |
| NIKKA-SHINKOH ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |