| SOUTH SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINBO LIMITED | Private company limited by shares | Live |
| SINODAR LIMITED | Private company limited by shares | Dissolved |
| TOP SINCERE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Sino International Capital Group Limited | Private company limited by shares | Live |
| SINO-USA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO FOCUS GROUP LIMITED | Private company limited by shares | Live |
| SINOLIZING LIMITED | Private company limited by shares | Live |
| SINCERE DRAGON LIMITED | Private company limited by shares | Live |
| SINO (HK) CHEMPHARMA CO., LIMITED | Private company limited by shares | Live |
| SINO (HK) JOINTER LIMITED | Private company limited by shares | Live |
| SING KEE CONSTRUCTION LIMITED | Private company limited by shares | Live |
| SINO-ARAB INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| YUK SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HK HO SING ESTATE (GROUP) LIMITED | Private company limited by shares | Dissolved |
| SINO BASE INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| SINOBLUE OPTOELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| SINO AMERICAN GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO BASIC ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINOFLAG LIMITED | Private company limited by shares | Live |
| Hong Kong Sing Dai Yan Investment Management Limited | Private company limited by shares | Live |
| SINO FUTURE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SINOWAY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HOLY SINO LIMITED | Private company limited by shares | Live |
| SINO GLOBAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| ASIA SINO EMPEROR (HK) LIMITED | Private company limited by shares | Live |
| SINO PASS LIMITED | Private company limited by shares | Live |
| SINO HAPPY INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO PLATFORM LIMITED | Private company limited by shares | Dissolved |
| Sino Fame Education Centre Limited | Private company limited by shares | Live |
| SINUOGE (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO MINING (HK) INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| SINO CHARTER LIMITED | Private company limited by shares | Live |
| SINO NETWORK LIMITED | Private company limited by shares | Dissolved |
| SINO PREMIUM INTERNATIONAL EXPORTING CO., LIMITED | Private company limited by shares | Dissolved |
| SINOGLOBE ASIA LIMITED | Private company limited by shares | Live |
| SINO BEST INVESTMENTS LIMITED | Private company limited by shares | Live |
| COEK SING ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SINO EXPLORER INVESTMENTS LIMITED | Private company limited by shares | Live Commenced dormancy on 09-Jul-2013 |
| SINO OPTRONIX CO., LIMITED | Private company limited by shares | Dissolved |
| SINO TECH MOLD LIMITED | Private company limited by shares | Live |
| SinoFlooring Company Limited | Private company limited by shares | Live |
| SINO ACE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Sinoteck HK Company Limited | Private company limited by shares | Live |
| WAI SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SINOMED ASSISTANCE LIMITED | Private company limited by shares | Dissolved |
| SINO SILA SPIRIT LIMITED | Private company limited by shares | Live |
| SINO NETWORK CARGO EXPRESS LIMITED | Private company limited by shares | Live |
| SINO SOUTH ENGINEERING CONSULTING (HK) LIMITED | Private company limited by shares | Live |
| SINOCEAN FUEL SERVICES CO., LIMITED | Private company limited by shares | Dissolved |
| SINOGO INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| WAH SING INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| Sino Electronic Technology Co., Limited | Private company limited by shares | Live |
| SINO TRANS (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| SINO FIELD (ASIA) LIMITED | Private company limited by shares | Live |
| SINO LINK TRADING LIMITED | Private company limited by shares | Live |
| SINO GENIUS GROUP LIMITED | Private company limited by shares | Live |
| SINO PETROLEUM EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO SEMI TRAILER COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO CREDIT LIMITED | Private company limited by shares | Live |
| Sinoluxury International Co., Limited | Private company limited by shares | Live |
| SINCERE DEVELOP LIMITED | Private company limited by shares | Dissolved |
| Sino Global Trading Group Limited | Private company limited by shares | Live |
| SINCEREST EXPRESS COMPANY LIMITED | Private company limited by shares | Live |
| SINO-SHINWOO HK LIMITED | Private company limited by shares | Live |
| SINO STAR (HK) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sino Light Enterprise Limited | Private company limited by shares | Live |
| Lok Sing Electronic Limited | Private company limited by shares | Dissolved |
| SINO STEEL&IRON GROUP CO., LIMITED | Private company limited by shares | Live |
| SINCERELY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINCO INTERNATIONAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HO SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO MAX (HK) ENERGY & RESOURCES LIMITED | Private company limited by shares | Live |
| SINOLITE LIMITED | Private company limited by shares | Live |
| SINARES INDUSTRY & TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS FUHAI SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS WANGHAI SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS GUANHAI SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO VICTORY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HONG XIANG SINO-HK LOGISTICS CO., LIMITED | Private company limited by shares | Live |
| HO SING METAL WORKS LIMITED | Private company limited by shares | Live Commenced dormancy on 20-Aug-2012 |
| SINOGET LIMITED | Private company limited by shares | Dissolved |
| SINOSILK ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO 2P LIMITED | Private company limited by shares | Live |
| SINYICO TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SINO HONESTY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINCERELY TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINO TECH (CHINA) SMART TECHNOLOGY HOLDING LIMITED | Private company limited by shares | Live |
| SINO CHAMPION INTERNATIONAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINCO IMPORT&EXPORT HONGKONG CO., LIMITED | Private company limited by shares | Live |
| MIGHTY SINO RESOURCES LIMITED | Private company limited by shares | Dissolved |
| HANG SING GARMENTS TRADING LIMITED | Private company limited by shares | Dissolved |
| HANG SING HONG GROUP LIMITED | Private company limited by shares | Live |
| SINO FAITH (H.K.) LIMITED | Private company limited by shares | Live |
| SINO WELL GENERAL (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINTELOM (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Sinofloral Trading Co., Limited | Private company limited by shares | Live |
| SINO CARE ENTERPRISE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG SINTEK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO GLOBAL (CHINA) LIMITED | Private company limited by shares | Dissolved |