| Sielement Technologies Limited | Private company limited by shares | Live |
| ITALY SIPES BATHROOM TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGKONG SINVA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINGTHONG (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO ORIENTAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINICTRANS GLOBAL CO LIMITED | Private company limited by shares | Live |
| SINO TREASURE CREATION LIMITED | Private company limited by shares | Live |
| Pop Sigma Limited | Private company limited by shares | Live |
| SINTAIYOU GROUP INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Live |
| SingOn Productions Limited | Private company limited by shares | Live |
| SIMENS ELECTRIC (USA) LIMITED | Private company limited by shares | Dissolved |
| SINCERITY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINO PASSION LIMITED | Private company limited by shares | Live |
| SINOTREND ENTERPRISES LIMITED | Private company limited by shares | Live |
| CROWN SINO ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO LEISURE AND HOTEL FURNITURE LIMITED | Private company limited by shares | Live |
| SICHUAN GULIN JIAOZILANG WINE INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| SINOCOMM CONSULTING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SILICON HOLDINGS LIMITED | Private company limited by shares | Live |
| SINO GLORY (GROUP) INVEST LIMITED | Private company limited by shares | Live |
| SINO DYNAMIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CENTURY SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO ACCORD INVESTMENT LIMITED | Private company limited by shares | Live |
| SIPAT Hong Kong Co., Limited | Private company limited by shares | Live |
| Sinotex Classic Limited | Private company limited by shares | Live |
| GUANGXIN SILICONE RUBBER TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| FAVOUR SINO LIMITED | Private company limited by shares | Live |
| SINGER ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SIRO LIMITED | Private company limited by shares | Dissolved |
| RICH SINO TRADING LIMITED | Private company limited by shares | Live |
| Sino-HK International Industrial (Holdings) Co., Limited | Private company limited by shares | Live |
| GRACE SINO LIMITED | Private company limited by shares | Live |
| Sino Renewable Limited | Private company limited by shares | Live |
| SICO INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| KAM SING APARTMENT LIMITED | Private company limited by shares | Live |
| SINO NUTRITION LIMITED | Private company limited by shares | Live |
| DRAGON SINO LIMITED | Private company limited by shares | Live |
| Sino Global Entertainment Limited | Private company limited by shares | Live |
| SILANGDA ELECTRONIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SINONE TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CROWN SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO HARBOUR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOWICK INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO CHOICE (H.K.) LIMITED | Private company limited by shares | Live |
| SINO AUSTRALIA INTERNATIONAL COMMERCIAL CO., LIMITED | Private company limited by shares | Live |
| Silone Company Limited | Private company limited by shares | Dissolved |
| SINO BEST INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINOHERBEX CO., LIMITED | Private company limited by shares | Live |
| HANG SING INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO-POWER (HONGKONG) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ITALY SIMAIGE CO., LIMITED | Private company limited by shares | Live |
| KEEP IT SIMPLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| BRITISH SINXLONG INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN SINTEK DIGITAL CO., LIMITED | Private company limited by shares | Live |
| KAM SING COMPANY LIMITED | Private company limited by shares | Live |
| ELITEGROUP COMPUTER SYSTEMS (SIP) CO., LIMITED | Private company limited by shares | Live |
| SILENCE LIMITED | Company limited by guarantee | Live |
| TOP SINO LIMITED | Private company limited by shares | Live |
| SINO CHINA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO NATION LIMITED | Private company limited by shares | Live |
| SINO COSMOS INVESTMENTS LIMITED | Private company limited by shares | Live |
| CHAN HO SING FOUNDATION LIMITED | Company limited by guarantee | Live |
| SIMPLE-NODE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO HERO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SILVERIN LIMITED | Private company limited by shares | Dissolved |
| SINOCORP (H.K.) LIMITED | Private company limited by shares | Live |
| SINO IMAGE (H.K.) LIMITED | Private company limited by shares | Live |
| SINO DRAGON INVESTMENT (GROUP) LIMITED | Private company limited by shares | Dissolved |
| Simaset HK Limited | Private company limited by shares | Dissolved |
| HONGKONG SIMAO CO., LIMITED | Private company limited by shares | Dissolved |
| SILVERWAY INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Silk Road Associates Limited | Private company limited by shares | Live |
| SICHUAN LUZHOU OLD WINESHOP WINE INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| CHINA SINCERE (HONG KONG) RESOURCES LIMITED | Private company limited by shares | Dissolved |
| Sino Any-Tech Co., Limited | Private company limited by shares | Live |
| Simple International Limited | Private company limited by shares | Live |
| SINO GOGING GROUP LIMITED | Private company limited by shares | Dissolved |
| KA SING TRADING LIMITED | Private company limited by shares | Dissolved |
| Silverstone Light Limited | Private company limited by shares | Dissolved |
| SINO WEST INVESTMENT & MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINO-WEALTH (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| Singaoptix Limited | Private company limited by shares | Live |
| SISA COMPANY LIMITED | Private company limited by shares | Dissolved |
| SICHUAN TUCAIZHU WINE SHARES CO., LIMITED | Private company limited by shares | Dissolved |
| SIAKO COMPANY FOR GENERAL TRADING LIMITED | Private company limited by shares | Live |
| SINO HOPE TRADING (HK) LIMITED | Private company limited by shares | Live |
| SigmaBrand Limited | Private company limited by shares | Dissolved |
| SIFUHUILIN WENYI PUBLISHING CO., LIMITED | Private company limited by shares | Live |
| Sino Handel Group Company Limited | Private company limited by shares | Dissolved |
| LEE YUEN ADVERTISING SIGN COMPANY LIMITED | Private company limited by shares | Live |
| Sino Unilink Technology (HK) Limited | Private company limited by shares | Dissolved |
| Sino Inn Limited | Private company limited by shares | Live |
| SINOWEST EDUCATIONAL SUPPORT CO., LIMITED | Private company limited by shares | Dissolved |
| PO SING CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO WAVE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINCERE HK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SIJIA INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |
| SIGEX LIMITED | Private company limited by shares | Live |
| Simplicity V8 Hong Kong Limited | Private company limited by shares | Live |
| AOPHEN SILICONE INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |