| SINO ELECTRONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| SING FAI ASIA PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| SISCO SUCCESS LIMITED | Private company limited by shares | Dissolved |
| LUNG SING ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO LINK LIMITED | Private company limited by shares | Live |
| SID'S LIMITED | Private company limited by shares | Live |
| SICHUAN LESHAN DONGFENG ELECTROMECHANICAL LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA ENERGY GROUP COMPANY LIMITED | Private company limited by shares | Live |
| SILVERBOB CHINA LIMITED | Private company limited by shares | Live |
| SILVERBOB HONG KONG LIMITED | Private company limited by shares | Live |
| Singelistas Limited | Private company limited by shares | Dissolved |
| SINO BRIGHT CENTURY LIMITED | Private company limited by shares | Dissolved |
| SINO CHOICE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SIMPLE LINK (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINODRILLS MACHINERY CO., LIMITED | Private company limited by shares | Dissolved |
| SINO BASE HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOPAK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO YUKI INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SINOPORT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINOTREL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO FIELD TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| PACIFIC SINO LIMITED | Private company limited by shares | Live |
| SINOUNION SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| BEST SINCERELY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ZHEJIANG SINZE INVESTMENT CO., LIMITED | Private company limited by shares | Dissolved |
| SINO TALENT CORPORATION LIMITED | Private company limited by shares | Live |
| SINO STEP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BEAUTY SIGHT INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO FILIPINO CULTURE AND ECONOMICS ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| SINO EMPIRE PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SINO BRAND INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING FAI DISPENSARY LIMITED | Private company limited by shares | Live |
| SINOONE (HK) LIMITED | Private company limited by shares | Live |
| JOY SIGHTSEEING CO LIMITED | Private company limited by shares | Dissolved |
| AMPLE SINO LIMITED | Private company limited by shares | Live |
| SINO TRADER INVESTMENT LIMITED | Private company limited by shares | Live |
| SINGON HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SAN BOU SING (HK) LIMITED | Private company limited by shares | Live |
| SINOSOFT TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SINO SANYI CO., LIMITED | Private company limited by shares | Dissolved |
| SILVERWIND INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO POLY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO KING ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SINO DRAGON TRADING LIMITED | Private company limited by shares | Live |
| SINO COSMOS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINCERE ESTATE LIMITED | Private company limited by shares | Live |
| Sinotrans Energetic Investments Limited | Private company limited by shares | Live |
| SINOVEST LIMITED | Private company limited by shares | Dissolved |
| SINO OCEAN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ZAN SILVER INVESTMENTS LIMITED | Private company limited by shares | Live |
| Sinopath Technology Limited | Private company limited by shares | Dissolved |
| Sinox Group Limited | Private company limited by shares | Live |
| SINO-CHIC RESOURCES LIMITED | Private company limited by shares | Dissolved |
| SINO RESOURCES ELECTRONICS LIMITED | Private company limited by shares | Live |
| Sino Storage Solutions Limited | Private company limited by shares | Live |
| SINRUI INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| YAT SING TRAVEL COMPANY LIMITED | Private company limited by shares | Live |
| SINOWIDE (H.K.) CHEMICAL & PLASTICS LIMITED | Private company limited by shares | Live |
| PLUS SINO LIMITED | Private company limited by shares | Dissolved |
| SINOTEX (P&D) COMPANY LIMITED | Private company limited by shares | Live |
| SISTER T LIMITED | Private company limited by shares | Dissolved |
| WAY SINO (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO STATE INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| SING CHEONG MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| SICON ENTERPRISE (HONGKONG) LIMITED | Private company limited by shares | Live |
| SHEEN SINCERE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINBAD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO YOHO LIMITED | Private company limited by shares | Dissolved |
| SINO EMIRATES CHEMICALS LIMITED | Private company limited by shares | Live |
| CROWN SINO (H.K.) LIMITED | Private company limited by shares | Live |
| SIMPLE ART INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SILVER FORTRESS LIMITED | Private company limited by shares | Live |
| SINOJEWELS LIMITED | Private company limited by shares | Live |
| SINOBRIGHT CAPITAL LIMITED | Private company limited by shares | Live |
| Silicon Lab Company Limited | Private company limited by shares | Live |
| SINO ART LIMITED | Private company limited by shares | Dissolved |
| SINO HARBOUR LIMITED | Private company limited by shares | Live |
| FIRST SINO TRADING LIMITED | Private company limited by shares | Live |
| SILVER OCEAN SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SICHUAN NOODLE (SHAMSHUIPO) LIMITED | Private company limited by shares | Live |
| GERMANY SIEMENS ELECTRIC APPLIANCE (GROUP) LIMITED | Private company limited by shares | Dissolved |
| Silkroad Books Limited | Private company limited by shares | Dissolved |
| SINO YUAN LIMITED | Private company limited by shares | Dissolved |
| SIMIAN PLAY LIMITED | Private company limited by shares | Live |
| JOY SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO METRO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SILICONE DRAGON INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SICHUAN GUANSHENGYUAN FOOD LIMITED | Private company limited by shares | Dissolved |
| SILVERTONE LIMITED | Private company limited by shares | Live |
| SinoSolar Group (Hong Kong) Limited | Private company limited by shares | Dissolved |
| SINO RICH DEVELOP LIMITED | Private company limited by shares | Dissolved |
| CHARMING SINO LIMITED | Private company limited by shares | Live |
| SINO OCEAN INVESTMENT LIMITED | Private company limited by shares | Live |
| SIN WU SING INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SIMPLE GRAMMAR LIMITED | Private company limited by shares | Dissolved |
| SINO-LINK EXPRESS LIMITED | Private company limited by shares | Dissolved |
| CHUNG SING SCHOOL ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| SILVER LOONG LIMITED | Private company limited by shares | Dissolved |
| SINO LEVEL LIMITED | Private company limited by shares | Dissolved |
| SILICONE SERVICES LIMITED | Private company limited by shares | Live |