| CHINA SANNONG CORRESPONDENCE CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA INTERNATIONAL CORRESPONDENCE UNIVERSITY OF CHINESE MEDICINE CO., LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Correspondence Technology Co., Limited | | Live |
| ROCKY CORRESPONDENCE SCIENCE TECHNOLOGY DEVELOPMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| H.K. KUNHUA WEIYE CORRESPONDENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DI KA TAI KE CORRESPONDENCE TECHNOLOGIES (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG KUNHUA WEIYE CORRESPONDENCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| H.K INT'L WIND CORRESPONDENCE LIMITED | Private company limited by shares | Live |
| CHUNG HWA CORRESPONDENCE SCHOOL HONG KONG ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| CHUNG HWA CORRESPONDENCE SCHOOL WORLD STUDENT'S ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| CELLTEL CORRESPONDENCE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| CORRESTONE LIMITED | Private company limited by shares | Live |