| FIBREDOWN GLOBAL LIMITED | Private company limited by shares | Dissolved |
| FIBREDOWN (HONG KONG) LIMITED | Private company limited by shares | Live |
| FIBREFLEX LIMITED | Private company limited by shares | Dissolved |
| FIBREFORCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ESSAR FIBREGLASS LIMITED | Private company limited by shares | Dissolved |
| EXPRESS MELIM FIBRE-GLASS PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| FIRSTDONE FIBRE-GLASS COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYTECH FIBREGLASS MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAI PING FIBREGLASS COMPANY LIMITED | Private company limited by shares | Live |
| POLYWELL FIBREGLASS LIMITED | Private company limited by shares | Dissolved |
| FIBREOPTICA LIMITED | Private company limited by shares | Live |
| A & B FIBRES LIMITED | Private company limited by shares | Dissolved |
| ADVANCED FIBRES LIMITED | Private company limited by shares | Dissolved |
| AUSTRALASIAN FIBRES LIMITED | Private company limited by shares | Dissolved |
| BLUESTAR FIBRES INVESTMENT CO. LIMITED | Private company limited by shares | Live |
| FIBRES CENTRE LIMITED | Private company limited by shares | Live |
| NATURAL FIBRES FAR EAST LIMITED | Private company limited by shares | Dissolved |
| EXPERT FIBRES (HK) LIMITED | Private company limited by shares | Live |
| FIBRES IMPORT AND EXPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG FIBRES INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| LOOP FIBRES PROCESSING LIMITED | Private company limited by shares | Live |
| SUN SHING FIBRES LIMITED | Private company limited by shares | Dissolved |
| SUN SHING FIBRES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SEAL SPECIALITY FIBRES LIMITED | Private company limited by shares | Dissolved |
| TECHNIC FIBRES LIMITED | Private company limited by shares | Dissolved |
| FIBRETEX LIMITED | Private company limited by shares | Live |
| FIBRETRONIC LIMITED | Private company limited by shares | Live |
| FibrGrid Limited | Private company limited by shares | Live |
| Fibring Limited | Private company limited by shares | Live |
| Fibring (Engineering) Limited | Private company limited by shares | Live |
| Fibring (Network) Limited | Private company limited by shares | Live |
| FIBRLINK LIMITED | Private company limited by shares | Live |
| Fibro-gel Limited | | Live |
| FibroGen International (Hong Kong) Limited | Private company limited by shares | Live |
| FIBRONIX LIMITED | | Live |
| Fibrum HK Limited | Private company limited by shares | Live |