| KOST LIMITED | Private company limited by shares | Live |
| KOST KLIP ASIA LIMITED | Private company limited by shares | Live Commenced dormancy on 30-Dec-2011 |
| KOSTA LIMITED | Private company limited by shares | Dissolved |
| HONG KONG KOSTA NETWORK TECHNOLOGY COMPANY LIMITED | | Live |
| HONG KONG KOSTA TRADING LOGISTIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOSTA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Kosta Electronic Technology Co., Limited | Private company limited by shares | Live |
| KOSTA TRADING LIMITED | Private company limited by shares | Dissolved |
| KOSTAH ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| KOSTANA COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOSTAR BATTERY CO., LIMITED | Private company limited by shares | Dissolved |
| KO-STAR DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| U.S.A KOSTAR GROUP LIMITED | Private company limited by shares | Dissolved |
| KOSTAR H.K. CO., LIMITED | Private company limited by shares | Dissolved |
| KOSTAR INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| KOSTAR INVESTMENTS LIMITED | Private company limited by shares | Live |
| KoStarter Limited | Private company limited by shares | Live |
| KCA (Kostas Chatzigiannis Architecture) Limited | Private company limited by shares | Live |
| KOSTEC LIMITED | Private company limited by shares | Dissolved |
| KOSTECH COMPANY LIMITED | Private company limited by shares | Live |
| KOSTEEL - OIL LIMITED | Private company limited by shares | Dissolved |
| KOSTEN BUILDING MATERIALS CO., LIMITED | Private company limited by shares | Live |
| KOSTEN INTERNATIONAL CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 07-Mar-2016 |
| KOSTER LIMITED | Private company limited by shares | Live |
| KOSTERWIN GROUP LIMITED | Private company limited by shares | Dissolved |
| KOSTINER LIMITED | Private company limited by shares | Live |
| KOSTKA LIMITED | Private company limited by shares | Dissolved |
| KOSTKA ASIA LIMITED | Private company limited by shares | Dissolved |
| KOSTKA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Kostolany (Hongkong) Limited | Private company limited by shares | Live |
| KOSTROMA LIMITED | Private company limited by shares | Live |