| GEMCO LIMITED | Private company limited by shares | Dissolved |
| GEMCO LIMITED | Private company limited by shares | Dissolved |
| RS GEMCO LIMITED | Private company limited by shares | Live |
| GEMCOAST LIMITED | Private company limited by shares | Live |
| GEMCODE LIMITED | Private company limited by shares | Dissolved |
| Gemcohub CO., Limited | | Live |
| GEMCOLOR LIMITED | Private company limited by shares | Dissolved |
| GEMCOLORZ LIMITED | Private company limited by shares | Live |
| Gemcon International Trading Co., Limited | | Live |
| Gemcoo Co., Limited | Private company limited by shares | Live |
| GEMCORD LIMITED | Private company limited by shares | Dissolved |
| GEMCO-RICH LIMITED | Private company limited by shares | Dissolved |
| GEMCOSMOS COMPANY LIMITED | Private company limited by shares | Live |
| GEMCOTEC LIMITED | Private company limited by shares | Live |