| Company Name | Type | Status |
|---|---|---|
| OUMAO CHEMICAL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Oumao International Co., Limited | Private company limited by shares | Live |
| HONG KONG OUMAO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG OUMAO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |