| JAMT Development Co., Limited | | Live |
| JamTai Industrial Co., Limited | Private company limited by shares | Live |
| JAMTEC LIMITED | Private company limited by shares | Dissolved |
| JAMTEK LIMITED | Private company limited by shares | Dissolved |
| JAMTEX LIMITED | Private company limited by shares | Dissolved |
| JAMTIX LIMITED | Private company limited by shares | Live |
| JAMTLAND LIMITED | Private company limited by shares | Dissolved |
| JAMTO LIMITED | Private company limited by shares | Dissolved |
| JAMTON LIMITED | Private company limited by shares | Dissolved |
| JAMTOR LIMITED | Private company limited by shares | Live |