| KEYTECH LIMITED | Private company limited by shares | Dissolved |
| KEYTECH LIMITED | Private company limited by shares | Live |
| KEYTECH ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| KEYTECH SYSTEMS ASIA CO., LIMITED | Private company limited by shares | Live |
| KEYTECH DATA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| KEYTECH ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| KEYTECH INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| KEYTECH INDUSTRIAL LIMITED | Private company limited by shares | Live |
| KEYTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KEYTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD KEYTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KEYTECH MANUFACTURING LIMITED | Private company limited by shares | Live |
| KML Keytech Manufacturing Limited | Private company limited by shares | Live |
| KEY-TECH MICROELECTRONICS LIMITED | Private company limited by shares | Live |
| KEYTECH PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| Keytech System (Asia) Limited | Private company limited by shares | Live |
| KEYTECH AUTOMATION TECHNOLOGY LIMITED | | Live |
| KEY-TECH TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KEYTECH ENGINEERING & TRADING LIMITED | Private company limited by shares | Dissolved |
| KEY-TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |