| PUTONGHUA ARTS INNOVATION LIMITED | Private company limited by shares | Dissolved |
| Greater Bay Area Putonghua Center Limited | Private company limited by shares | Live |
| HAN LIN PUTONGHUA LANGUAGE EDUCATION CENTER LIMITED | Private company limited by shares | Live |
| PINJIA PUTONGHUA EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| HAI YI PUTONGHUA EDUCATIONAL CENTRE LIMITED | Private company limited by shares | Live |
| TYPING TO LEARN PUTONGHUA CENTRE LIMITED | Private company limited by shares | Dissolved |
| Hai Yi Putonghua Educational Centre (North Point) Limited | Private company limited by shares | Live |
| EASY PUTONGHUA TRAINING LIMITED | Private company limited by shares | Live |
| Xianggang Putonghua Yanxishe | Company limited by guarantee | Live |
| Putongwhat Limited | Private company limited by shares | Dissolved |