| TANCO LIMITED | Private company limited by shares | Dissolved |
| TANCO JEWELLERY ACCESSORIES LIMITED | Private company limited by shares | Dissolved |
| Tanco Holding Limited | Private company limited by shares | Live |
| TANCO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| TANCO INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| TANCO PACIFIC COMPANY LIMITED | Private company limited by shares | Live |
| HK TANCO TECH LIMITED | Private company limited by shares | Live |
| TANCO TRADING LIMITED | Private company limited by shares | Dissolved |
| TANCON LIMITED | Private company limited by shares | Dissolved |
| TANCORP LIMITED | Private company limited by shares | Dissolved |
| TANCORP INVESTMENTS LIMITED | Private company limited by shares | Dissolved |