| Company Name | Type | Status |
|---|---|---|
| Kooka Holding Limited | Private company limited by shares | Live |
| KOOKA (HONG KONG) OPTRONICS CO., LIMITED | Private company limited by shares | Live |
| KOOKAI BOOKSTORE LIMITED | Private company limited by shares | Live |
| Koo-Kai International CO., LIMITED | Private company limited by shares | Live |
| KOOKAN LIMITED | Private company limited by shares | Dissolved |