| Company Name | Type | Status |
|---|---|---|
| SUMYING TRADE CO., LIMITED | Private company limited by shares | Live |
| Sumyiptea Limited | Live | |
| SUMYI.YL Company Limited | Private company limited by shares | Live |
| Sumyth Trading Company Limited | Live | |
| SUMYUN TRADING CO., LIMITED | Private company limited by shares | Live |
| SUMZI LAB LIMITED | Live | |
| Sumzoeng Limited | Private company limited by shares | Live |