| HOLD SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SINCERE SHOES TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO MARINE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HOI SING (HK) ENGINEERING LIMITED | Private company limited by shares | Live |
| Sino Global Resources Company Limited | Private company limited by shares | Live |
| SINTO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sino Vast Holding Group Limited | Private company limited by shares | Live |
| SING KEE (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO RAY IMPORT & EXPORT TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Sino-wide International (Asia) Limited | Private company limited by shares | Live |
| SINOSWISS ADVISOR LIMITED | Private company limited by shares | Live |
| SINOSPA LIMITED | Private company limited by shares | Dissolved |
| MING SING WEALTH LIMITED | Private company limited by shares | Dissolved |
| Sinotex Asia Limited | Private company limited by shares | Live |
| SINO LEAD INVESTMENT LIMITED | Private company limited by shares | Live |
| Sinolucky Line Limited | Private company limited by shares | Live |
| SINCERE INDUSTRIAL TRADE CO., LIMITED | Private company limited by shares | Live |
| SINO-ZIM MINING CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO MEGA CORPORATION LIMITED | Private company limited by shares | Live |
| SINO DEVELOP CORPORATION LIMITED | Private company limited by shares | Live |
| SINOSOFT (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Live |
| SINO CONSTRUCTION SHIPPING (HK) LIMITED | Private company limited by shares | Live |
| ZHI XIN SINO-CONSULTING LIMITED | Private company limited by shares | Dissolved |
| SOUTH KOREA SINO-GERMAN FAIRY TALE (HK) CO., LIMITED | Private company limited by shares | Live |
| SINTEC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Hong Sing Electronics (Hong Kong) Limited | Private company limited by shares | Live |
| SINO STAR CREATION LIMITED | Private company limited by shares | Live |
| SINOWIZS LIMITED | Private company limited by shares | Live |
| CONVERGE SINO TEXTILES LIMITED | Private company limited by shares | Live |
| SINO STOCK LIMITED | Private company limited by shares | Live |
| YIU SING INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| ACAE SINO-AUSTRALIA PTY LIMITED | Private company limited by shares | Live |
| BRIGHT SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| CAPITAL SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO ELITE ASSETS MANAGEMENT LIMITED | Private company limited by shares | Live |
| PINE SING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO PETROCHEMICALS CO., LIMITED | Private company limited by shares | Dissolved |
| SINO OCEAN MEDIA (HK) LIMITED | Private company limited by shares | Dissolved |
| SINOCITY ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO ADVANTAGE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ASIA SINO ENGINEERING LIMITED | Private company limited by shares | Live |
| SINOPAC MOTORS TRADING CO. LIMITED | Private company limited by shares | Live |
| SINO WEALTH ENGINEERING LIMITED | Private company limited by shares | Live |
| Solar Sino Technologies Limited | Private company limited by shares | Live |
| SINO LOI AND CONSULTING (HK) LIMITED | Private company limited by shares | Live |
| LEUNG SING DEVELOP LIMITED | Private company limited by shares | Live |
| SINO MOUNTAIN LIMITED | Private company limited by shares | Live |
| HONG KONG CHI SING LIMITED | Private company limited by shares | Live |
| SINO GREAT (H.K.) LIMITED | Private company limited by shares | Live |
| SHENZHEN SINCO ELECTRON CO., LIMITED | Private company limited by shares | Dissolved |
| SINO BASE LIMITED | Private company limited by shares | Live |
| SINGALONG ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| SINO PETRO PIPELINE CO., LIMITED | Private company limited by shares | Live |
| SINO-HK HUAQIANG GROUP INT'L CO., LIMITED | Private company limited by shares | Dissolved |
| SINO CATALYST CO LIMITED | Private company limited by shares | Live |
| SINOCEAN INTERNATIONAL TRADE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SinoSinc International (HK) Co., Limited | Private company limited by shares | Live |
| SINO STAR INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SINO TECHNOLOGY (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Dissolved |
| SINO ASSURANCE LIMITED | Private company limited by shares | Live |
| SINO FARFLY TRADING LIMITED | Private company limited by shares | Live |
| SINOTEX INVESTMENT LIMITED | Private company limited by shares | Live |
| YAU SING TRADE (HONG KONG) LIMITED | Private company limited by shares | Live |
| WAN SING HOUSEHOLD APPLIANCES (H.K.) LIMITED | Private company limited by shares | Live |
| SINO WAY MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINO UNITED ENTERPRISES LIMITED | Private company limited by shares | Live |
| Sino Lube International Industry Limited | Private company limited by shares | Live |
| Lok Sing Gas Products Limited | Private company limited by shares | Dissolved |
| SINODRILLS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINO TECHNOLOGY INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| SHIJIAZHUANG SINOPETER TRADE CO., LIMITED | Private company limited by shares | Live |
| SINO LANE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Sino Interiors Limited | Private company limited by shares | Live |
| SINO-ANGOLA INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SING FOO GEARS (HK) CO., LIMITED | Private company limited by shares | Live |
| Sino Renewable Trading Limited | Private company limited by shares | Live |
| SINOBRAS CONSULTANT & TRADE CO., LIMITED | Private company limited by shares | Live |
| SINO KING INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO WORLD DEVELOP LIMITED | Private company limited by shares | Live |
| SINO WEALTH (CHINA) LIMITED | Private company limited by shares | Live |
| Sino Pharm Limited | Private company limited by shares | Live |
| SINO FAMOUS CORPORATION LIMITED | Private company limited by shares | Live |
| GOLDEN WOOD CITY SINO-HK TRADING LIMITED | Private company limited by shares | Live |
| SINO STRONG DEVELOP LIMITED | Private company limited by shares | Live |
| SINO ASIA DEVELOP LIMITED | Private company limited by shares | Dissolved |
| SING YAM INTERNATIONAL LIMITED | Private company limited by shares | Live |
| PAN SING ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINEUCOM LIMITED | Private company limited by shares | Live |
| SINO KINGKEY HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| EAST SINO ENTERPRISES LIMITED | Private company limited by shares | Live |
| ASIA SINO CONSULTANTS LIMITED | Private company limited by shares | Live |
| WAI SING TRANSPORATION LIMITED | Private company limited by shares | Dissolved |
| SINOCEAN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINOSTAR INDUSTRIAL (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SINO ORIENT LIMITED | Private company limited by shares | Dissolved |
| SINO ORIENT INVESTMENT LIMITED | Private company limited by shares | Live |
| TSUN SING ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO ACT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| AMPLE SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| China Sino Stone Group Co., Limited | Private company limited by shares | Live |