| POLYSOUND COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSOUND LIMITED | Private company limited by shares | Live |
| POLYSOURCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSOURCE CAPITAL ASSETS LIMITED | Private company limited by shares | Live |
| POLYSOURCE INVESTMENTS LIMITED | Private company limited by shares | Live |
| POLYSOURCE TRADING LIMITED | Private company limited by shares | Dissolved |
| POLYSOURCES LIMITED | Private company limited by shares | Live |
| Polysources Design Limited | Private company limited by shares | Live |
| POLYSOURCES PROPERTIES LIMITED | Private company limited by shares | Live |
| POLYSPARK LIMITED | Private company limited by shares | Dissolved |
| POLYSPARK LIMITED | Private company limited by shares | Live |
| POLYSPARK DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| POLYSPARK INVESTMENTS LIMITED | Private company limited by shares | Live |
| POLYSPHERE LIMITED | Private company limited by shares | Live |
| POLYSPRING COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSPRING LIMITED | Private company limited by shares | Dissolved |
| POLYSPRING ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| POLYSPRING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| POLYSPRING PUBLICATION LIMITED | Private company limited by shares | Dissolved |
| POLYSPRINT NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| POLYSQUARE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Polyss (Hong Kong) Limited | Private company limited by shares | Live |
| POLYSTAND LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ART COMPANY LIMITED | Private company limited by shares | Live |
| POLYSTAR AGENTS LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ASIA LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ASIA LIMITED | Private company limited by shares | Live |
| PolyStar Chemicals Limited | Private company limited by shares | Live |
| POLYSTAR CHINA LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR COMPUTER LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR ENTERPRISES LIMITED | Private company limited by shares | Live |
| POLYSTAR GLOBAL LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| POLYSTAR INVESTMENT LIMITED | Private company limited by shares | Live |
| POLYSTAR LASER LIMITED | Private company limited by shares | Dissolved |
| Polystar Supply Chain Management Limited | Private company limited by shares | Live |
| POLYSTAR OVERSEAS LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR PACIFIC LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR PLASTIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR PROPERTIES LIMITED | Private company limited by shares | Live |
| POLYSTAR SHIPPING LIMITED | Private company limited by shares | Live |
| POLYSTAR TALENT LIMITED | Private company limited by shares | Live |
| POLYSTAR TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR TRADING LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR TRADING LIMITED | Private company limited by shares | Dissolved |
| POLYSTAR UNIVERSAL LIMITED | Private company limited by shares | Live |
| PolyStar Valley Network Technology Limited | Private company limited by shares | Live |
| POLYSTART INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| POLYSTATE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| POLYSTATE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| POLYSTEADY LIMITED | Private company limited by shares | Dissolved |
| POLYSTEN LIMITED | Private company limited by shares | Dissolved |
| HONGKONG POLYSTONE INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Polystone Solutions Limited | | Live |
| POLYSTRONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSTRONG INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSTRONG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| POLYSTRONG INVESTMENTS LIMITED | Private company limited by shares | Live |
| POLY-STYLE LIMITED | Private company limited by shares | Live |
| POLYSTYLE TRADING LIMITED | Private company limited by shares | Dissolved |
| MAINFOAM POLYSTYRENE LIMITED | Private company limited by shares | Dissolved |
| POLYSTYRENE FOAM PRODUCTS FACTORY LIMITED | Private company limited by shares | Live |
| SUNNY POLYSTYRENE FOAM COMPANY LIMITED | Private company limited by shares | Live |
| GENERAL WELLY POLYSTYRENE CO. LIMITED | Private company limited by shares | Dissolved |
| Poly-Success (International) Chemical Holdings Limited | Private company limited by shares | Dissolved |
| POLYSUCCESS TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| POLYSUM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| POLYSUN COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLY-SUPREME TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| POLYSURE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| POLYSURE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| POLYSYS LIMITED | Private company limited by shares | Dissolved |
| POLY-SYSTEM LIMITED | Private company limited by shares | Live Ceased dormancy on 04-Aug-2014 |