| SYNTHASIA INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| Synthax Holding Limited | Private company limited by shares | Live |
| Synthax Hong Kong Limited | Private company limited by shares | Live |
| Synthbox Limited | | Live |
| Synthder Incorporation Limited | Private company limited by shares | Live |
| Synthebot Limited | | Live |
| SYNTHECO LIMITED | Private company limited by shares | Dissolved |
| Synthect Polska Limited | Private company limited by shares | Live |
| Synthelab Limited | Private company limited by shares | Live |
| SYNTHESIS COMPANY LIMITED | Private company limited by shares | Dissolved |
| BHD SYNTHESIS LIMITED | Private company limited by shares | Live |
| Synthesis Limited | Private company limited by shares | Live |
| NEXT SYNTHESIS LIMITED | Private company limited by shares | Dissolved |
| Synthesit HK Limited | | Live |
| SYNTHESIT ASIA LIMITED | | Live |
| Fine Crystal (HongKong) Synthesizes Industry Limited | Private company limited by shares | Dissolved |
| KOREA HYUNDAI SYNTHESIZES TRADING LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC LIMITED | Private company limited by shares | Dissolved |
| HKCHE Laboratory for Synthetic Chemistry and Chemical Biology Limited | Company limited by guarantee | Live |
| BORNTEX SYNTHETIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIE CHANCE SYNTHETIC INDUSTRIAL COMPANY, LIMITED | Private company limited by shares | Dissolved |
| POLIDER SYNTHETIC CHEMICALS COMPANY LIMITED | Private company limited by shares | Live |
| CHING MEI SYNTHETIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| Chemax Synthetic Technology Co., Limited | | Live |
| HONGKONG RUNKEDA SYNTHETIC ESTER LUBRICANT CO., LIMITED | Private company limited by shares | Live |
| Germany Cognis Synthetic Oil Chemical Industry Co., Limited | Private company limited by shares | Live |
| TEXAS SYNTHETIC CO., LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC SYSTEMS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC (CONTRACTING SPECIALISTS) ENGINEERING LIMITED | Private company limited by shares | Live |
| SYNTHETIC CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC CORPORATION LIMITED | Private company limited by shares | Live |
| K. & M. SYNTHETIC CRYSTALS MARKETING CO., LIMITED | Private company limited by shares | Dissolved |
| RELIANCE SYNTHETIC WIG DYEING LIMITED | Private company limited by shares | Dissolved |
| Synthetic Lubricant (China) New Energy Environmental Protection Technology Research Limited | Private company limited by shares | Live |
| SYNTHETIC ENGINEERING LIMITED | Private company limited by shares | Live |
| SYNTHETIC ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KAM TAT SYNTHETIC BLEACHING FACTORY LIMITED | Private company limited by shares | Dissolved |
| LEE LOY SYNTHETIC NETTING FACTORY LIMITED | Private company limited by shares | Dissolved |
| XINDA SYNTHETIC FIBER LIMITED | Private company limited by shares | Live |
| WANG CHEONG SYNTHETIC FIBRE PRODUCTS LIMITED | Private company limited by shares | Live |
| YUE HING SYNTHETIC FIBRE COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG SUPER SPECIAL SYNTHETIC FIBRE CO., LIMITED | Private company limited by shares | Dissolved |
| GUANGDONG EAST SYNTHETIC FIBRE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SYNTHETIC FIBRE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA COTTON, WOOL & SYNTHETIC FIBRE MILLS (F.E.) LIMITED | Private company limited by shares | Dissolved |
| STAR SYNTHETIC FLOWER FACTORY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN RESOURCES SYNTHETIC MATERIALS LIMITED | Private company limited by shares | Dissolved |
| CLARA SYNTHETIC HAIR PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| CUBIC SYNTHETIC (HK) COMPANY LIMITED | Private company limited by shares | Live |
| NEW YUE HING (H.K.) SYNTHETIC FIBRE COMPANY LIMITED | Private company limited by shares | Live |
| ACE PACIFIC SYNTHETIC INDUSTRY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| RASTAR SYNTHETIC MATERIAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG NEW SYNTHETIC INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Acosta Synthetic Leather (Hong Kong) Co., Limited | Private company limited by shares | Live |
| NEW BRIGHT SYNTHETIC LEATHER (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| FORMOSA SYNTHETIC RUBBER (HONG KONG) CORPORATION LIMITED | Private company limited by shares | Live |
| HONG KONG SYNTHETIC GROUP TRADE SHARES LIMITED | Private company limited by shares | Live |
| HONG KONG WOOLLEN & SYNTHETIC KNITTING MANUFACTURERS' ASSOCIATION, LIMITED | Company limited by guarantee | Live |
| JIANGYIN CRABEC SYNTHETIC CHEMICAL (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUH JUNG SYNTHETIC LEATHER PRODUCTS (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SYNTHETIC LEATHER & METAL MATERIAL SUPPLIERS' ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Synthetic Phonics Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG SYNTHETIC PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| SAM-HAN SYNTHETIC (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Motif Synthetic Biology (HongKong) Co., Limited | | Live |
| HONGKONG SYNTHETIC HAIR PROCESSING FACTORY, LIMITED | Private company limited by shares | Dissolved |
| HUAHONG SYNTHETIC MATERIAL (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG SYNTHETIC TEXTURIZERS AND PROCESSORS ASSOCIATION | Company limited by guarantee | Dissolved |
| HONGKONG WOOL AND SYNTHETIC SPINNERS ASSOCIATION LIMITED -THE- | Company limited by guarantee | Dissolved |
| Huasheng Synthetic Leather Company Limited | | Live |
| NINGBO HUISHENG SYNTHETIC MATERIAL CO., LIMITED | Private company limited by shares | Live |
| Synthetic Idea Limited | Private company limited by shares | Live |
| SUNRISE SYNTHETIC INDUSTRIAL COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC INDUSTRIES CO., LIMITED | | Live |
| SYNTHETIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SYNTHETIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EUROPEAN-ASIAN SYNTHETIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SYNTHETIC IVORY ARTS LIMITED | Private company limited by shares | Dissolved |
| JAPAN FAW TOYOTA SYNTHETIC LUBRICATING LIMITED | Private company limited by shares | Live |
| JIBSEN SYNTHETIC FABRICS MANUFACTORY LIMITED | Private company limited by shares | Live |
| LABTEK SYNTHETIC & DOWN CORPORATION LIMITED | Private company limited by shares | Live |
| LAFE SYNTHETIC PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| LEADER SYNTHETIC BLEACHING FACTORY LIMITED | Private company limited by shares | Dissolved |
| A1 SYNTHETIC LEATHER CO. LIMITED | Private company limited by shares | Live |
| A&B SYNTHETIC LEATHER CO. LIMITED | Private company limited by shares | Dissolved |
| ABLE SYNTHETIC LEATHER LIMITED | Private company limited by shares | Live |
| NEW BRIGHT SYNTHETIC LEATHER COMPANY LIMITED | Private company limited by shares | Live |
| GUANGZHOU SYNTHETIC LEATHER CHEMICALS CO., LIMITED | Private company limited by shares | Live |
| SOON CHEONG SYNTHETIC LEATHER LIMITED | Private company limited by shares | Dissolved |
| CHUANGYAN SYNTHETIC LEATHER CO. LIMITED | Private company limited by shares | Dissolved |
| SUNRISE SYNTHETIC LEATHER CO., LIMITED | Private company limited by shares | Live |
| MEI DENG SYNTHETIC LEATHER CO., LIMITED | Private company limited by shares | Live |
| GUANGZHOU AC SYNTHETIC LEATHER & BAGS CO., LIMITED | Private company limited by shares | Live |
| KEY SYNTHETIC LEATHER (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG HAO MING SYNTHETIC LEATHER COMPANY LIMITED | Private company limited by shares | Live |
| KEY SYNTHETIC LEATHER (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Live |
| KEMCOAT SYNTHETIC LEATHER COMPANY LIMITED | Private company limited by shares | Live |
| FIRST SYNTHETIC LEATHER MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITED OVERSEAS SYNTHETIC LEATHER COMPANY LIMITED | Private company limited by shares | Live |
| WENZHOU QIANGLI SYNTHETIC LEATHER CO., LIMITED | Private company limited by shares | Live |