| CHI SING INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| GREAT SINO GROUP LIMITED | Private company limited by shares | Dissolved |
| KIN SING ELECTRONIC (HK) LIMITED | Private company limited by shares | Dissolved |
| WING SING TECHNOLOGY (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING CHEER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINCO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO STAR EMPIRE LIMITED | Private company limited by shares | Live |
| SINO CHEMTECH LIMITED | Private company limited by shares | Live |
| WAH SING ASIA LIMITED | Private company limited by shares | Dissolved |
| SINODEC INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| GRAND SINO ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| SINOTEC HOLDINGS LIMITED | Private company limited by shares | Live |
| KAH SING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINODRAGON HOLDING LIMITED | Private company limited by shares | Dissolved |
| SINO-FRANCO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINOMEN LIMITED | Private company limited by shares | Dissolved |
| SINO PORT (HK) LIMITED | Private company limited by shares | Live |
| SINO EAGLE INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOLIGHT (GUANGDONG) LIMITED | Private company limited by shares | Dissolved |
| SINO SMART TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO VISION UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SINO OCEAN ENTERPRISES (HK) LIMITED | Private company limited by shares | Live |
| SINO VISION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO TARGET LIMITED | Private company limited by shares | Dissolved |
| SINO RICH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINKO ELECTRONIC (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGLE MADE LIMITED | Private company limited by shares | Live |
| SINO CONCEPT CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO ASIA PACIFIC (HK) LIMITED | Private company limited by shares | Live |
| SINO SMART CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINODO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING HO CATERING COMPANY LIMITED | Private company limited by shares | Live |
| SINO HILL INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| YUEN SING LIMITED | Private company limited by shares | Live |
| Sino Industrial Minerals Trading Co., Limited | Private company limited by shares | Dissolved |
| SINOMAC LIMITED | Private company limited by shares | Dissolved |
| ELITE SINO TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINRONG MANAGEMENT GROUP (CHINA) LIMITED | Private company limited by shares | Live |
| TOP SINO DEVELOP LIMITED | Private company limited by shares | Dissolved |
| Sino Weaving International Limited | Private company limited by shares | Dissolved |
| SINO FIELD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO HK INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO TRADE INDUSTRIAL (H.K.) LIMITED | Private company limited by shares | Live |
| SING CHI SING PLASTIC METAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| TSUN SING LOGISTIC CO LIMITED | Private company limited by shares | Dissolved |
| SINCERE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO GARMENT LIMITED | Private company limited by shares | Live |
| SINO WINNER (H.K.) LIMITED | Private company limited by shares | Live |
| SINORISE LIMITED | Private company limited by shares | Dissolved |
| SINO CONCEPT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO HORIZON INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINRICO HOUSEHOLD TEXTILE (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO DRAGON CORPORATION LIMITED | Private company limited by shares | Live |
| SINO CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO EVER (H.K.) LIMITED | Private company limited by shares | Live |
| HUA SINCERE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO GAS GROUP INVESTMENTS LIMITED | Private company limited by shares | Live |
| HANG SING CAR TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SHANGHAI SINMED CO., LIMITED | Private company limited by shares | Live |
| HK SINCANO TECHNOLOGY HOLDING CO., LIMITED | Private company limited by shares | Dissolved |
| SHIU SING JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| SINO SKYLINE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO - GLOBAL INFORMATION TECHNOLOGY CO. LIMITED | Private company limited by shares | Dissolved |
| SINO MINERAL INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SINOETHICS-UNITED LIMITED | Private company limited by shares | Dissolved |
| SINO ETERNAL TRADING LIMITED | Private company limited by shares | Live |
| CHAN SING LUNG GROUP LIMITED | Private company limited by shares | Live |
| SINOTILE INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SINO ETONE (HK) ELECTRONICS LIMITED | Private company limited by shares | Live |
| EASTERN SINO PRIDE COMPANY LIMITED | Private company limited by shares | Live |
| SINO STAR INTERNATIONAL SERVICE LIMITED | Private company limited by shares | Live |
| TWIN SINO LIMITED | Private company limited by shares | Dissolved |
| SINO CAPITAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINOMAX CREATION LIMITED | Private company limited by shares | Dissolved |
| WAH SING BUTTON FACTORY LIMITED | Private company limited by shares | Dissolved |
| GLORY SINO (HK) LIMITED | Private company limited by shares | Live |
| SINO DECADE (HK) LIMITED | Private company limited by shares | Live |
| SINO-AMERICA NEW ENERGY INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO TEAM (H.K.) LIMITED | Private company limited by shares | Live |
| SINO-VIRTUE INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KAM SING ELECTRONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO DYNAMIC LIMITED | Private company limited by shares | Dissolved |
| SINO JOYCE LIMITED | Private company limited by shares | Live |
| SINO (HK) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO FULLERTON COMPANY LIMITED | Private company limited by shares | Live |
| SINOMAX AUTOMATION LIMITED | Private company limited by shares | Dissolved |
| LOYAL SINO INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| SINO-SOURCE SOLUTIONS LIMITED | Private company limited by shares | Live |
| Sintex Asia Limited | Private company limited by shares | Live |
| SINO-HK GROUP LIMITED | Private company limited by shares | Live |
| HERMANOS SINDO LIMITED | Private company limited by shares | Live |
| KAR SING TRADING LIMITED | Private company limited by shares | Dissolved |
| SUN SING CORPORATION LIMITED | Private company limited by shares | Live |
| SINO CARE LIMITED | Private company limited by shares | Dissolved |
| SING FUNG INDUSTRIAL LIMITED | Private company limited by shares | Live |
| NEW SINO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| LUCKY SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO CENTURY INVESTMENT LIMITED | Private company limited by shares | Live |
| SINDEX LIMITED | Private company limited by shares | Dissolved |
| SINO CYBER TRADING LIMITED | Private company limited by shares | Dissolved |