| PTH PETROCHEMICALS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SG PETRO-CHEMICALS LIMITED | Private company limited by shares | Dissolved |
| MAX KINA PETROCHEMICALS CO., LIMITED | Private company limited by shares | Dissolved |
| PU ZHEN PETROCHEMICALS CO., LIMITED | Private company limited by shares | Live |
| ENRON PETROCHEMICALS LIMITED | Private company limited by shares | Dissolved |
| YIU KONG PETROCHEMICALS COMPANY LIMITED | Private company limited by shares | Live |
| TRUSGAIN PETROCHEMICALS LIMITED | Private company limited by shares | Live |
| VIBEN PETROCHEMICALS LIMITED | Private company limited by shares | Dissolved |