| PROTOP COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROTOP CORPORATION LIMITED | Private company limited by shares | Live |
| PROTOP GOLF CORPORATION LIMITED | Private company limited by shares | Dissolved |
| PROTOP TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| PROTOP DEVELOPMENT LIMITED | Private company limited by shares | Live |
| PROTOP TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PROTOP HOLDING LIMITED | | Live |
| PROTOP IMPORT & EXPORT CO., LIMITED | Private company limited by shares | Dissolved |
| PROTOP INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| ProTop (International) Consulting Groups Limited | Private company limited by shares | Live |
| Protop International Group Co., Limited | Private company limited by shares | Live |
| PROTOP INVESTMENT LIMITED | Private company limited by shares | Live |
| PROTOP PHOTO-GRAPHIC-ARTS LIMITED | Private company limited by shares | Dissolved |
| Protop Financial Press Limited | Private company limited by shares | Live |
| PRO-TOP TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Pro-top Trading Co. Limited | Private company limited by shares | Live |
| Protopia International Company Limited | | Live |
| QINGDAO JINGNIANG PROTOPLASM BEER LIMITED | | Live |
| Protoporos Enterprises Limited | | Live |