| N.T.C Dream Limited | Private company limited by shares | Live |
| NT&C Engineering Limited | | Live |
| NTCG HOLDINGS LIMITED | Private company limited by shares | Live |
| NTCJ COMPANY LIMITED | | Live |
| NTCMACHINE LIMITED | Private company limited by shares | Live |
| NTCMACHINERY LIMITED | | Live |
| NTCN COMPANY LIMITED | Private company limited by shares | Dissolved |
| NTCN CAPITAL CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN CONSULTING CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN TECHNOLOGIES CO., LIMITED | Private company limited by shares | Dissolved |
| NTCN TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| NTC-Technologies Co., Limited | Private company limited by shares | Live |