| SINOCDN LIMITED | Private company limited by shares | Live |
| SITECH SA LIMITED | Private company limited by shares | Dissolved |
| SITARA NETWORKS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HAI SING LOONG INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SILVER & GOLD COMPANY LIMITED | Private company limited by shares | Live |
| BIG SINCERE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SING TAT EMBROIDERY FACTORY LIMITED | Private company limited by shares | Live |
| SINO HARVEST ASIA LIMITED | Private company limited by shares | Live |
| SINOWORKS MANAGEMENT ADVISORY LIMITED | Private company limited by shares | Dissolved |
| SIMthru Limited | Private company limited by shares | Dissolved |
| SINO INSTRUMENTS & MATERIALS GROUP LIMITED | Private company limited by shares | Live |
| TRIUMPH SINO LIMITED | Private company limited by shares | Dissolved |
| SINO MINMETALS CO., LIMITED | Private company limited by shares | Dissolved |
| SILICON CREATION LIMITED | Private company limited by shares | Live |
| SICALCO S. A. LIMITED | Private company limited by shares | Dissolved |
| SINO - ITALIAN LIGHTING CO. (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SING PO TIMER COMPANY LIMITED | Private company limited by shares | Live |
| CHINA SINO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO POWER ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINCERE DEMOLITION CONTRACTORS LIMITED | Private company limited by shares | Dissolved |
| GIP SING INDUSTRIAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SISTEMALUX LIMITED | Private company limited by shares | Live |
| SINO STAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINOSTAR H.K. INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Silicon Development International Co. Limited | Private company limited by shares | Live |
| SINO CONCEPT FINANCE LIMITED | Private company limited by shares | Dissolved |
| SINOFAITH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINOTEK INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO FORTUNE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SIDEE LIMITED | Private company limited by shares | Dissolved |
| SINOTECH SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| SINO EXCEL MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SILK DE DOMAINE DESIGN & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| SILICON MAGIC (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO-BRIDGE CAPITAL PROJECT MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SINOLINK INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINO-EUROPE (INTERNATIONAL) TRADING CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO ORIENT LIMITED | Private company limited by shares | Dissolved |
| SIMONCHEE ARCHITECTS LIMITED | Private company limited by shares | Live |
| SIMPLICITY LIMITED | Private company limited by shares | Dissolved |
| SINO TAKE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WIN SINO LIMITED | Private company limited by shares | Live |
| SINO RANK (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO GOLD (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| POLYCROWN (SICHUAN) ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| SIENNA CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SILANE SERVICES LIMITED | Private company limited by shares | Dissolved |
| SIMPLE WORKSHOP (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG (SICHUAN) JIASHAN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOSTAR INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SILICON FORTUNE LIMITED | Private company limited by shares | Dissolved |
| SIMPLICITY SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| SINO FAIR ASIA LIMITED | Private company limited by shares | Live |
| SINO LEADER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO-QUELL LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA ENTERPRISES LIMITED | Private company limited by shares | Live |
| TOP SINO TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GRAND SINO (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO JET LIMITED | Private company limited by shares | Dissolved |
| SILVER NET LIMITED | Private company limited by shares | Live |
| GOLD SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MAX SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| TUNG SING CLEANING TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA TRADING LIMITED | Private company limited by shares | Live |
| SINO GROWTH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HARVEST SINO LIMITED | Private company limited by shares | Dissolved |
| SINOVISA COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING YEE HONG LIMITED | Private company limited by shares | Live |
| SINO DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| GREAT SINO MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SINO YIELD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SILK ROAD FINANCE LIMITED | Private company limited by shares | Dissolved |
| WUI HAM GOLD SILVER LIMITED | Private company limited by shares | Dissolved |
| SINOLINK PLASTIC & METAL PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| YUE SING LIMITED | Private company limited by shares | Dissolved |
| SINOSTAR NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO ELITE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HANG SING (LPGTG) ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| SINO TECH MACHINERY (HK) LIMITED | Private company limited by shares | Live |
| SINOLINK CORPORATION LIMITED | Private company limited by shares | Live |
| SINO-HONGKONG INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD SINO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINOTEC (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOLINK INTERNET MARKETING LIMITED | Private company limited by shares | Dissolved |
| SINO POWER MERCANTILE LIMITED | Private company limited by shares | Dissolved |
| SINO CHAMPION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO POWER LIMITED | Private company limited by shares | Dissolved |
| SINO BEST LIMITED | Private company limited by shares | Dissolved |
| SINO PEACE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| YAT SING FURNITURE COMPANY LIMITED | Private company limited by shares | Live |
| SINO FAME (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO HONOUR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINOFAIR LIMITED | Private company limited by shares | Live |
| SINO LINE INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO FIDELITY LIMITED | Private company limited by shares | Dissolved |
| SINO GLISTER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO GALLERY LIMITED | Private company limited by shares | Live |
| SINO GLISTER LIMITED | Private company limited by shares | Live |
| SINO EXPERT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO GLISTER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |