| TUNAS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WAH HING LAND INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG CHINESE PATENT MEDICINE MANUFACTURERS' ASSOCIATION LIMITED | Company limited by guarantee | Live |
| TECK CHEONG ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| CHUNG HING INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| CHAN MING AND COMPANY LIMITED | Private company limited by shares | Dissolved |
| CROMWELL INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |