| SUPERTEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX, LIMITED | Private company limited by shares | Live |
| SUPERTEX IMP & EXP LIMITED | Private company limited by shares | Live |
| ALPHA SUPERTEX LIMITED | Private company limited by shares | Dissolved |
| SUPER-TEX TRADING CO., LIMITED | Private company limited by shares | Live |
| SUPERTEX DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SUPERTEX DEVELOPMENT LIMITED | | Live |
| SUPERTEX (H.K.) LIMITED | | Live |
| L & L SUPERTEX ENTERPRISE (HK) LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX INDUSTRY (HK) LIMITED | Private company limited by shares | Live |
| SUPERTEX (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX INDUSTRIAL CO. LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX INTERNATIONAL LIMITED | | Live |
| SUPERTEX INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 12-Jul-1999 |
| SUPERTEX KNITTING FACTORY LIMITED | Private company limited by shares | Live |
| SUPERTEX NOMINEES LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX PAINT & SANITARY WARE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUPERTEX (HONG KONG) TEXTILE CO., LIMITED | Private company limited by shares | Live |
| SUPERTEX TRADING LIMITED | Private company limited by shares | Dissolved |