| SINO ENERGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO POWER INFORMATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO WELL MANAGEMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 04-Mar-2009 |
| SINO ALLIANCE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MING SING TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| SIKO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WING SING PRODUCT LIMITED | Private company limited by shares | Live |
| SINO LAND (HK) CO. LIMITED | Private company limited by shares | Live |
| SIAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FUNG SING MARKETING LIMITED | Private company limited by shares | Live |
| FINE SINCERE LIMITED | Private company limited by shares | Live |
| HONG KONG CHILDREN'S SINGERS LIMITED | Company limited by guarantee | Dissolved |
| SINOLINK CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO CHANNEL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GLOBAL SINO TRADING LIMITED | Private company limited by shares | Live |
| SINONET TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO LEGEND INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO ARTS & CRAFTS LIMITED | Private company limited by shares | Dissolved |
| SING TAO DAILY NEWSPAPERS PUBLISHING LIMITED | Private company limited by shares | Live Ceased dormancy on 02-Jul-2002 |
| SING MAN PUBLISHING LIMITED | Private company limited by shares | Live Commenced dormancy on 08-Apr-2014 |
| SIMPLY STONED LIMITED | Private company limited by shares | Dissolved |
| LIP SING ENGINEERING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HK SICHUAN YINGLONG LUTIE DEV. LIMITED | Private company limited by shares | Dissolved |
| SILVER DAY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SINOHOME.COM LIMITED | Private company limited by shares | Dissolved |
| SING WAU H.K. CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Jun-2016 |
| SINOLINK NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TUNG SING ELECTROPLATE FACTORY LIMITED | Private company limited by shares | Live |
| SILICON LAKE HI-TECH GROUP LIMITED | Private company limited by shares | Dissolved |
| SINOGAIN TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SICYON SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| GOLD SIMCO LIMITED | Private company limited by shares | Live |
| SINOGAIN HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SINOGAIN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SIGMA ASIA LIMITED | Private company limited by shares | Dissolved |
| SINCERE SUCCESS LIMITED | Private company limited by shares | Dissolved |
| SINO LOGIC (HK) LIMITED | Private company limited by shares | Dissolved |
| EVER SINCERE INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO DRAGON INVESTMENTS LIMITED | Private company limited by shares | Live |
| SIXES COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAI SING CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SILICON VALLEY CYBER REPUBLIC LIMITED | Private company limited by shares | Dissolved |
| SINCLAIR LIMITED | Private company limited by shares | Dissolved |
| MILLION SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| SINOSTAR INTERNATIONAL FORWARDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOK SING INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO ACT LIMITED | Private company limited by shares | Dissolved |
| SING YUEN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINORON INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO PROFITS LIMITED | Private company limited by shares | Live |
| SINO CITIES LIMITED | Private company limited by shares | Dissolved |
| SISTERS NETWORK LIMITED | Private company limited by shares | Dissolved |
| WING SING ELECTRO-PLATING LIMITED | Private company limited by shares | Live |
| CITY (SINO-HK) TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SICA LIMITED | Private company limited by shares | Live Commenced dormancy on 28-Jun-2016 |
| SINO-H.K. CYBER HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SINO CAPITAL JEWELLERY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINO GEM (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO GOOD TRADING LIMITED | Private company limited by shares | Dissolved |
| SILVER TRIUMPH ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SING LEE TRADING (2000) COMPANY LIMITED | Private company limited by shares | Live |
| SINO-I.COM (BEIJING) LIMITED | Private company limited by shares | Dissolved |
| SING SING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TRUE SINO LIMITED | Private company limited by shares | Dissolved |
| SINO GLORY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO HONEST INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO PROSPER LIMITED | Private company limited by shares | Dissolved |
| KA & SING TOURS LIMITED | Private company limited by shares | Dissolved |
| SINO CHANNEL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO HILL TRADING LIMITED | Private company limited by shares | Dissolved |
| HANG SING MOTORS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOP SING (PACIFIC) LIMITED | Private company limited by shares | Dissolved |
| SINOGATE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SING FUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO CAPITAL RESOURCES LIMITED | Private company limited by shares | Dissolved |
| SINOPAC SECURITIES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINO YIELD ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINO EXPRESS INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINCERE TEAM LIMITED | Private company limited by shares | Dissolved |
| SINO INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO-FINANCE ASSET MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SINOWEALTH TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GLORY SINCERE (HONG KONG) LIMITED | Private company limited by shares | Live |
| GOOD SINCERE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SING KEE METAL WORKS FACTORY LIMITED | Private company limited by shares | Dissolved |
| SING YUN INDUSTRIAL INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO LAND CO. (HK) LIMITED | Private company limited by shares | Live |
| SINOFACTURE LIMITED | Private company limited by shares | Live |
| SINO FOREIGN INVESTMENTS ASSET MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINOSKY INTERNET SERVICE LIMITED | Private company limited by shares | Dissolved |
| SINO WAY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SING LONG TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINOB2B LIMITED | Private company limited by shares | Dissolved |
| ALLIANCE SINOTRANS EXPRESS LIMITED | Private company limited by shares | Dissolved |
| SIGAS FINANCE LIMITED | Private company limited by shares | Dissolved |
| SIDA INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DRAGON SIGHT LIMITED | Private company limited by shares | Dissolved |
| HING SING ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| AURORAE SINTER METALS COMPANY LIMITED | Private company limited by shares | Dissolved |