| SINOTEX TRADING INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO BRIGHT PROPERTIES INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO GOOD PROPERTIES LIMITED | Private company limited by shares | Live |
| SINFORD MANAGEMENT LIMITED | Private company limited by shares | Live |
| SIQIANG INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| CHINA TREASURE SINCERE TRADE LIMITED | Private company limited by shares | Live |
| SINO GLORY MACHINERY AND RESOURCES COMPANY LIMITED | Private company limited by shares | Dissolved |
| THREE SIXTY CREATIVE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sigma Capital Investment Limited | Private company limited by shares | Live |
| Sigma Sigma Capital Investment Limited | Private company limited by shares | Live |
| Sigma Equity Limited | Private company limited by shares | Live |
| Sing Li Lace International Company Limited | Private company limited by shares | Live |
| SILVER BIRD LIMITED | Private company limited by shares | Live |
| Silver Oak Limited | Private company limited by shares | Live |
| SINO INTERNATIONAL TRAVEL SERVICE CO., LIMITED | Private company limited by shares | Live |
| SIBOM GROUP LIMITED | Private company limited by shares | Live |
| Sinco Electronics Co., Limited | Private company limited by shares | Live |
| SINSANG INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINCERE PARAGON LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL SUPPORT COMPANY LIMITED | Private company limited by shares | Live |
| CURRY SING LIMITED | Private company limited by shares | Live |
| SINOSPACE BIO-TECH LIMITED | Private company limited by shares | Live Commenced dormancy on 21-Apr-2016 |
| SINOBEST PACIFIC INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOYU HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| WAH SING TAI TRADING LIMITED | Private company limited by shares | Live |
| SING CHI SING PLASTIC MATERIALS METAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| SINO ALLIANCE HONG KONG GROUP LIMITED | Private company limited by shares | Live |
| SINO ELITE INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| SINOGROUP TRADE LIMITED | Private company limited by shares | Live |
| SINO FOREST LIMITED | Private company limited by shares | Live |
| SINO KEYVIEW LIMITED | Private company limited by shares | Live |
| SINO CRYSTAL INVESTMENT LIMITED | Private company limited by shares | Live |
| CHINA SINO HOLDING GROUP LIMITED | Private company limited by shares | Live |
| SINOTEC ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| SINO-AFRICAN COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| SIDNERGY CO., LIMITED | Private company limited by shares | Live |
| SINO CREST LIMITED | Private company limited by shares | Live |
| SINO SENSE LIMITED | Private company limited by shares | Live |
| SINO METROPOLE LIMITED | Private company limited by shares | Live |
| SINOPROM LIMITED | Private company limited by shares | Live |
| SIMROC HOLDING LIMITED | Private company limited by shares | Dissolved |
| Silk Road Outlets HK Limited | Private company limited by shares | Live |
| SING CHEONG CONSTRUCTION & ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| JINGLONG SILICONE CO., LIMITED | Private company limited by shares | Dissolved |
| SINO CRAY LIMITED | Private company limited by shares | Live |
| SINO TOPS LIMITED | Private company limited by shares | Live |
| SINOTECT INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SINO WISER LIMITED | Private company limited by shares | Live |
| SIMFUL LIMITED | Private company limited by shares | Live |
| SIMPLY CLOUD LIMITED | Private company limited by shares | Live |
| SINOMACH MACHINERY LIMITED | Private company limited by shares | Live |
| TOP SINO TRADING LIMITED | Private company limited by shares | Live |
| SINO TOP CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| Sirona Limited | Private company limited by shares | Dissolved |
| SINO CONEXION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO-AUSTRALIA EDUCATIONAL EXCHANGE LIMITED | Private company limited by shares | Live |
| Joy Sincere (Hong Kong) Limited | Private company limited by shares | Live |
| SINO CAVALIER LIMITED | Private company limited by shares | Live |
| SINOR INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| GREEN SINO TECHNOLOGY HK LIMITED | Private company limited by shares | Live |
| WING FAT SINO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SIMBALAND LIMITED | Private company limited by shares | Live |
| SINOELECTRIC MANUFACTURE LIMITED | Private company limited by shares | Live |
| SINO SKY TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO BRITISH INVESTMENT LIMITED | Private company limited by shares | Live |
| Sinostar Precision Limited | Private company limited by shares | Dissolved |
| TRANSASIA SINO LIMITED | Private company limited by shares | Live |
| SINO M&S LIMITED | Private company limited by shares | Live |
| VAST SINO LIMITED | Private company limited by shares | Live |
| Sino Prime-tech Limited | Private company limited by shares | Live |
| SIRG HK LIMITED | Private company limited by shares | Live |
| SINO TOPONE MACHINERY INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| YING SING INTERNATIONAL EXCHANGE LIMITED | Private company limited by shares | Live |
| SINO COURAGE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO GOLD INC LIMITED | Private company limited by shares | Live |
| SINO TOPWORLD LIMITED | Private company limited by shares | Live |
| SINO LEAD TRADING LIMITED | Private company limited by shares | Live |
| Sino Faith Enrich Limited | Private company limited by shares | Live |
| WAI TOK SING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO CHANNEL ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO WORLD ENTERPRISES LIMITED | Private company limited by shares | Live |
| SIREN E&P LIMITED | Private company limited by shares | Live |
| GUANGDONG FOSHAN SIMEIKE CERAMIC LIMITED | Private company limited by shares | Live |
| SINGJOY TRADE LIMITED | Private company limited by shares | Live |
| SIBOL Trade Limited | Private company limited by shares | Live |
| SINIT HOLDINGS LIMITED | Private company limited by shares | Live |
| YAT SING CONCRETE DRILL CUT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SINO LINK INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| SINO LINKS LIMITED | Private company limited by shares | Live |
| SINO JOY INC LIMITED | Private company limited by shares | Live |
| Apollo Singers Company Limited | Company limited by guarantee | Live |
| Cheuk Sing International Trading Limited | Private company limited by shares | Dissolved |
| SINOTOM LIMITED | Private company limited by shares | Live |
| FUK HANG SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sino-Sud Resources Inc. Limited | Private company limited by shares | Live |
| SING WUI INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO BRIGHT TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SINORICH RESOURCES AND INVESTMENT LIMITED | Private company limited by shares | Live |
| HK JHON BANG YE SING LIMITED | Private company limited by shares | Live |
| SINO EXQUISITE SERVICE LIMITED | Private company limited by shares | Live |