| SAMPADA SEJAHTERA ASIA LIMITED | Private company limited by shares | Live |
| SEJAL GEMS HONG KONG COMPANY LIMITED | Private company limited by shares | Live |
| SEJAL DIAM (HK) LIMITED | | Live |
| SEJAL INDUSTRIES CO., LIMITED | Private company limited by shares | Dissolved |
| PT SUMBER URIP SEJATI CO., LIMITED | Private company limited by shares | Live |
| SEJATI INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEJEGY CIRCUIT CO., LIMITED | Private company limited by shares | Live |
| SEJES HOLDING CO., LIMITED | | Live |
| SEJIN ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| SEJIN MBM ENGINEERING LIMITED | Private company limited by shares | Live |
| SEJIN GLOBAL LIMITED | Private company limited by shares | Live |
| SEJO INTERNATIONAL LIGHTING (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Sejong CPA Alliance Limited | Private company limited by shares | Live |
| SEJONG FN (HONG KONG) CO., LIMITED | Private company limited by shares | Dissolved |
| Sejong Consulting Limited | Private company limited by shares | Live Ceased dormancy on 21-Dec-2015 |
| SEJONG KOREAN EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| SEJOS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEJU LIMITED | Private company limited by shares | Dissolved |
| SEJUK LIMITED | Private company limited by shares | Dissolved |
| SEJUNG SHIPPING (H.K.) CO., LIMITED | Private company limited by shares | Live |
| SEJUNG GROUP HOLDINGS CO., LIMITED | Private company limited by shares | Live |
| SEJUNG HONG KONG LIMITED | Private company limited by shares | Live |
| SEJUNG IND. CO., LIMITED | Private company limited by shares | Live |
| SE-JUNG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEJUNG STEEL COMPANY LIMITED | Private company limited by shares | Dissolved |