| HONG SING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WING SING COMPANY LIMITED | Private company limited by shares | Live |
| Sino Asset Financial Leasing (HK) Limited | Private company limited by shares | Live |
| Great Sino Capital Management Limited | Private company limited by shares | Live |
| ISO SINO LIMITED | Private company limited by shares | Live |
| SINO PIONEER INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO-GLORY INTERNATIONAL SHIPPING LIMITED | Private company limited by shares | Live |
| SINO LINKAGE (HONG KONG) LIMITED | Private company limited by shares | Live |
| Sino-Shiny Group Limited | Private company limited by shares | Live |
| SINOS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| NINE SINO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO ANSON INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Sinox Industrial Co., Limited | Private company limited by shares | Live |
| Singleway Electronic Co., Limited | Private company limited by shares | Live |
| SINO HORIZON INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| Sino Sky Energy Limited | Private company limited by shares | Dissolved |
| GOOD SINO (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO INTERNATIONAL HEALTH INDUSTRY GROUP LIMITED | Private company limited by shares | Live |
| SINO FAME PROPERTIES LIMITED | Private company limited by shares | Live |
| EAST SINO TRADING LIMITED | Private company limited by shares | Live |
| Sino-Europe Industry and Business Association Limited | Private company limited by shares | Live |
| SINO DELIGHTS LIMITED | Private company limited by shares | Dissolved |
| SINO CONSMINING MACHINERY INDUSTRIAL INC LIMITED | Private company limited by shares | Live |
| SINO ASIA GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG SINGSHJAY GROUP GARMENTS LIMITED | Private company limited by shares | Dissolved |
| SINOCORP LIMITED | Private company limited by shares | Live |
| CHAMPION SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO SYSTEM INVESTMENTS LIMITED | Private company limited by shares | Live |
| Sinomeridian International Holding (HK) Co., Limited | Private company limited by shares | Dissolved |
| SINO SPRING CORPORATION LIMITED | Private company limited by shares | Live |
| SINTEX (H K) LIMITED | Private company limited by shares | Live |
| HIN SING LIMITED | Private company limited by shares | Live |
| SINO BRIDGES LIMITED | Private company limited by shares | Dissolved |
| SINO FX CO., LIMITED | Private company limited by shares | Live |
| Sino Audio (HongKong) Co., Limited | Private company limited by shares | Live |
| SINO ASSET CORPORATION LIMITED | Private company limited by shares | Dissolved |
| ZK SINOCHIP LIMITED | Private company limited by shares | Live |
| BETA SING LIMITED | Private company limited by shares | Dissolved |
| SINO ECOMMERCE LIMITED | Private company limited by shares | Live |
| SINCERE REALTY LIMITED | Private company limited by shares | Dissolved |
| NAC SINOMIX LIMITED | Private company limited by shares | Dissolved |
| SINNY TEXTILE CO., LIMITED | Private company limited by shares | Live |
| SINO TRUELY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO BRIGHT INC. LIMITED | Private company limited by shares | Live |
| SINWON MICRON (HONG KONG) CO., LIMITED | Private company limited by shares | Dissolved |
| YUNG SING ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINO SUCCESS ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINO CHAMPION CORPORATION LIMITED | Private company limited by shares | Live |
| SINGULARITY SOFTWARE LIMITED | Private company limited by shares | Live |
| HOI SING DEVELOP ENTERPRISE LIMITED | Private company limited by shares | Live |
| HK SINSUN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Ngai Sing Properties Limited | Private company limited by shares | Live |
| SINORON LIMITED | Private company limited by shares | Dissolved |
| TAIWAN SINO STAR TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO MACHINERY INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| SINO PROSPER (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Sino Sky Energy Group Limited | Private company limited by shares | Live |
| SING TUNG WAH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINGMA LIMITED | Private company limited by shares | Live |
| WAI SING ENIERPRISES HK LIMITED | Private company limited by shares | Dissolved |
| SINO HEALTH SHARE LIMITED | Private company limited by shares | Dissolved |
| SINCERE LINK ENTERPRISES LIMITED | Private company limited by shares | Live |
| ZHEJIANG SINO IMPORT AND EXPORT CO., LIMITED | Private company limited by shares | Live |
| SINLONGSIN (HK) INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Sing Wai Tour's Bus Co. Limited | Private company limited by shares | Live |
| SINO WHOLESALE LIMITED | Private company limited by shares | Live |
| AMPLE SINO CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINOWOOD ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO PROSPER CREDIT LIMITED | Private company limited by shares | Live |
| SINO LOGIKOS HOLDING LIMITED | Private company limited by shares | Live |
| SINO LINKAGE LIMITED | Private company limited by shares | Live |
| HONG KONG WAH SING ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| KAI SING FAN ENGINEERING LIMITED | Private company limited by shares | Live |
| SINOHONGKONG HUITONG INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| SINO EXPRESS CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Sinotrans Air Hong Kong Transportation Development Company Limited | Private company limited by shares | Live |
| CHI SING TRANSPORTATION LIMITED | Private company limited by shares | Live |
| SING YEE LIMITED | Private company limited by shares | Dissolved |
| YUE SING (H.K.) TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SINO FRONTIER INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINCO INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINO BUSINESS GROUP LIMITED | Private company limited by shares | Dissolved |
| Sino Technology Investment (Hong Kong) Limited | Private company limited by shares | Dissolved |
| SinoLogic Pharmaceuticals (Hong Kong) Limited | Private company limited by shares | Dissolved |
| Sinocre Company Limited | Private company limited by shares | Live |
| SINGYU ELECTRONICS (HK) LIMITED | Private company limited by shares | Live |
| Sino-German United Automotive Technology Co., Limited | Private company limited by shares | Live |
| SINO WEST ENERGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINOTONE TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| SINO GAIN TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO ORIENT ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO BRIDGE(HK) LIMITED | Private company limited by shares | Live |
| ZHUHAI SINOR ELECTRONICS DEVICES CO., LIMITED | Private company limited by shares | Live |
| SINO-TRANS INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINO JINSHU RESOURCES LIMITED | Private company limited by shares | Live |
| UNO DRAGON SINO LIMITED | Private company limited by shares | Live |
| TOP SINO SB LIMITED | Private company limited by shares | Live |
| SINO OCEAN STONE HONGKONG CO., LIMITED | Private company limited by shares | Dissolved |
| MEGA SINO INT'L GROUP LIMITED | Private company limited by shares | Live |
| SINO RAINBOW CORPORATION LIMITED | Private company limited by shares | Live |