| H.K.K INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| LAUSANNE (HKK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK.KENERTEC LIMITED | Private company limited by shares | Dissolved |
| HK&KH Limited | | Live |
| HKKH INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| ORIENTAL (HK-KOREA) LIMITED | Private company limited by shares | Dissolved |
| HKKPM. HealthCare Limited | Private company limited by shares | Live |
| HKKS LIMITED | Private company limited by shares | Live |
| HKKS COMPANY SERVICE LIMITED | Private company limited by shares | Live |