| Yuqi Biotechnology Limited | Private company limited by shares | Live |
| YUQIAO BIOTECHNOLOGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HK YU'S BIO-TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| YUXIN BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK YUYAN BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK YUYANSHIJIA BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK YUYI BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK YUYUANSHANG BIOTECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK YUZHIJIE BIOTECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| ZAPP BIOTECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| ZEMING HK BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| Zenith Biotechnology Limited | | Live |
| ZEXON BIO-TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHEJIANG TAINENG BIOTECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ZHENG DUO BIOTECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| France Zhenhongliya Biotechnology Co., Limited | Private company limited by shares | Live |
| HK ZHENYAN BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZHENYIMEI BIOTECHNOLOGY LIMITED | | Live |
| HK ZHIBEN BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZHIJIE BIOTECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK ZHIXIANG BIO-TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK ZHIYUAN BIOTECHNOLOGY INT'L GROUP CO., LIMITED | Private company limited by shares | Live |
| HK ZHIZHENTANG BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZHONGHUI BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGKEKUIHUA BIOTECHNOLOGY LIMITED | | Live |
| ZhongTai Biotechnology Pharmaceutical Group Co., Limited | Private company limited by shares | Live |
| ZhongYan Biotechnology (HK) Co., Limited | Private company limited by shares | Live |
| HK ZHONGYANG (ASIA) BIOTECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| KOREA ZHONGYANG BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZHONGYUAN HEALTH BIOTECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| France Yao Zhuang Biotechnology Group Co., Limited | Private company limited by shares | Live |
| ZHUOMEI BIOTECHNOLOGY CO., LIMITED | | Live |
| ZIBOSHI BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZiShan Biotechnology (Asia) Limited | Private company limited by shares | Live |
| HK ZIWUNIU BIOTECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ZiXi Bio-Technology Group Co., Limited | Private company limited by shares | Live |
| ZKJMW BIO-TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| ALL ZONE BIOTECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ZUODY BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK ZUZHUANGTANG BIOTECHNOLOGY LIMITED | Private company limited by shares | Live |
| XINSHA AGRICULTURE (HONG KONG) BIO-TECHNOLOGY.COM LIMITED | Private company limited by shares | Dissolved |
| MERMAID BIOTECHNOLOGY(HK) CO., LIMITED | Private company limited by shares | Live |
| Deok-ao Biotechnology(Hong Kong) Limited | Private company limited by shares | Live |