| KOSS JEWELRY LIMITED | Private company limited by shares | Live |
| Kosse Technology Company Limited | Private company limited by shares | Live |
| KOSSEL LIMITED | Private company limited by shares | Dissolved |
| KOSSEL LIMITED | | Live |
| KOSSIE LIMITED | Private company limited by shares | Live |
| Kossilon Accounting Services Limited | Private company limited by shares | Live |
| Kossilon Business Consultants Limited | Private company limited by shares | Live |
| Kossilon Legal Limited | Private company limited by shares | Dissolved |
| Kossilon Corporate Services Limited | Private company limited by shares | Live |
| Kossilon Links Services Limited | Private company limited by shares | Live |
| Kossilon Secretarial Services Limited | Private company limited by shares | Live |
| KOSSINI LIMITED | Private company limited by shares | Dissolved |
| Kossini Foundation Limited | Private company limited by shares | Live |
| KOSSO CO., LIMITED | Private company limited by shares | Live |
| KOSSOFF COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOSS-RITZ & CO. ( HONG KONG ) LIMITED | Private company limited by shares | Dissolved |
| KOSSU COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOSSUN LIMITED | Private company limited by shares | Dissolved |
| KOSSWAY LIMITED | Private company limited by shares | Dissolved |
| KOSSY INVESTMENT LIMITED | Private company limited by shares | Dissolved |