| Company Name | Type | Status |
|---|---|---|
| Okko HK Limited | Private company limited by shares | Live |
| OKKO SANITARY WARE (HK) HOLDING CO., LIMITED | Private company limited by shares | Dissolved |
| OKKO ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| OKKO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| OKKO PEARL LIMITED | Private company limited by shares | Live |
| OKKO Intelligent Technology Co., Limited | Private company limited by shares | Live |
| OK-KOREA FLIGHT LIMITED | Private company limited by shares | Live |