| KOOK LIMITED | Private company limited by shares | Dissolved |
| Kook Company Limited | Private company limited by shares | Live |
| KOOK RETAIL CONSULTING LIMITED | Private company limited by shares | Live |
| KO.OK Design Limited | Private company limited by shares | Live |
| Kook Global Limited | Private company limited by shares | Live |
| KOOK GROUP LIMITED -THE- | Private company limited by shares | Live |
| HAN KOOK HOLDINGS LIMITED | Private company limited by shares | Live |
| KOOK Wines and Spirits (Hong Kong) Limited | Private company limited by shares | Live |
| KOOK Digital (Hongkong) Co., Limited | Private company limited by shares | Live |
| KYEONG KOOK HONGKONG LIMITED | Private company limited by shares | Live |
| KOOK (HONGKONG) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DONG KOOK INDUSTRIAL DEVELOPE (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| KOOK INTERIORS LIMITED | Private company limited by shares | Live |
| KOOK KIK TRADE LIMITED | | Live |
| Han Kook Trading Limited | Private company limited by shares | Dissolved |
| UNIVERSAL HON KOOK TOURS LIMITED | Private company limited by shares | Dissolved |
| KAM KOOK YUEN LIMITED | Private company limited by shares | Dissolved |
| Kam Kook Yuen Limited | | Live |
| 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 |
| KOOKE LIMITED | Private company limited by shares | Live |
| KOOKEE LIMITED | Private company limited by shares | Dissolved |
| KOOKEEN PRECISION MACHINERY CO., LIMITED | Private company limited by shares | Live |
| HONGKONG KOOKI COMPANY LIMITED | Private company limited by shares | Live |
| Kookie Dookie Limited | | Live |
| Kookii Limited | Private company limited by shares | Live |
| KOOKII INTERNATIONAL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| KOOKIY TECHNOLOGY COOPERATION LIMITED | Private company limited by shares | Live |
| KOOKJIN LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| KOOKNIE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOOK'S JEWELLERS LIMITED | Private company limited by shares | Dissolved |
| Kooky Entertainment Limited | Private company limited by shares | Live |