| ASF CASING LIMITED | Private company limited by shares | Dissolved |
| CITADEL CASING LIMITED | Private company limited by shares | Live |
| H.K DAHONGTU TRADEMARK SUPPLEMENTARY MATERIALS PRESENT CASING CO., LIMITED | Private company limited by shares | Live |
| H.K DAHONGTU TRADEMARK SUPPLEMENTARY MATERIALS PRESENT CASING INT'L LIMITED | Private company limited by shares | Dissolved |
| DALIAN DALONG PLASTIC CASING CO., LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL CASING LIMITED | Private company limited by shares | Live |
| CN PRECISION CASING COMPANY LIMITED | Private company limited by shares | Live |
| CASING REALTY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CASING TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CASING MONITOR KEYBOARD TECHNOLOGY LIMITED | Private company limited by shares | Live |
| JASON CASINGS LIMITED | | Live |
| PACIFIC CASINGS LIMITED | Private company limited by shares | Dissolved |