| MERRO INTERNATIONAL BIOLOGY GROUP (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Merro International Biology Technology (HK) Group Limited | Private company limited by shares | Live |
| MERRO INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Live |
| Merro International Technology Biology Group Limited | Private company limited by shares | Live |
| Merro International (Hong Kong) Economic Company Limited | Private company limited by shares | Live |
| PHALA MERRO (CHINA) LIMITED | Private company limited by shares | Live |
| MERRO PHARMACEUTICAL (HONG KONG) LIMITED | Private company limited by shares | Live |