| J.S.T LIMITED | Private company limited by shares | Live |
| J.S.T. ART CONSULTANCY LIMITED | Private company limited by shares | Live |
| J.S.T. (H.K.) CO., LIMITED | Private company limited by shares | Live |
| J.S.T (INT) LIMITED | Private company limited by shares | Dissolved |
| JST7C Limited | Private company limited by shares | Dissolved |
| JSTAR COMPANY LIMITED | Private company limited by shares | Live |
| NEW JSTAR LIMITED | Private company limited by shares | Live |
| JSTAR LIMITED | Private company limited by shares | Live |
| JSTC Limited | Private company limited by shares | Dissolved |
| JSTD CO., LIMITED | Private company limited by shares | Dissolved |
| JSTECH RESOURCES TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| JSTEX WINTEX CO., LIMITED | Private company limited by shares | Live |
| JSTEX IMPORT EXPORT CO., LIMITED | Private company limited by shares | Live |
| JSTN CO., LIMITED | Private company limited by shares | Live |
| J-STONE & COMPANY LIMITED | Private company limited by shares | Live |
| J-STYLE HK LIMITED | Private company limited by shares | Live |