| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| SINOJEWELS LIMITED | Private company limited by shares | Live |
| SINOBRIGHT CAPITAL 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 |
| SINO YUAN LIMITED | Private company limited by shares | Dissolved |
| JOY SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO METRO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| 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 |
| SINO-LINK EXPRESS LIMITED | Private company limited by shares | Dissolved |
| CHUNG SING SCHOOL ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| SINO LEVEL LIMITED | Private company limited by shares | Dissolved |
| NEW SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| ASIA SINO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| TAI SING (HK) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINOWAY CAPITAL RESOURCES LIMITED | Private company limited by shares | Dissolved |
| ON SINO INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Live |
| SINO BASE METAL CO., LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL CAPITAL LIMITED | Private company limited by shares | Live |
| SINO HOPE LIMITED | Private company limited by shares | Dissolved |
| SINO BEST METAL HONG KONG LIMITED | Private company limited by shares | Dissolved |
| WAI SING (INTERNATIONAL) TRADING LIMITED | Private company limited by shares | Live |
| SINOPARS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOKAM Limited | Private company limited by shares | Dissolved |
| MAN SING GARMENT FACTORY LIMITED | Private company limited by shares | Live |
| SINO METAL MINING INT'L LIMITED | Private company limited by shares | Dissolved |
| SINOLINK INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SINO LUCKY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING FAI NON-WOVEN ENTERPRISE CO. LIMITED | Private company limited by shares | Dissolved |
| Sino American Energy (HK) Limited | Private company limited by shares | Dissolved |
| GREAT SINO (H.K.) LIMITED | Private company limited by shares | Live |
| SINOTAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO TRUMP LIMITED | Private company limited by shares | Live |
| SINO HOME LIMITED | Private company limited by shares | Live |
| SINO ASIA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO VISION ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO 08 LIMITED | Private company limited by shares | Dissolved |
| SINOSKY SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SING YU (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO TRIFONE LIMITED | Private company limited by shares | Live |
| SINO FLAIR LIMITED | Private company limited by shares | Live |
| SINO LION LIMITED | Private company limited by shares | Dissolved |
| KA TA SING COMPANY LIMITED | Private company limited by shares | Live |
| YI SING ELECTRONICS CO., LIMITED | Private company limited by shares | Dissolved |
| CANADIAN SINOSUN ENERGY LIMITED | Private company limited by shares | Live |
| EXCEL SINCERE LIMITED | Private company limited by shares | Live |
| SINO AHEAD LIMITED | Private company limited by shares | Live Commenced dormancy on 16-Dec-2013 |
| SINO-AUSTRIA ARCHITECTURAL DESIGN (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINO PEARL LIMITED | Private company limited by shares | Live |
| SINO WEALTH CORPORATION LIMITED | Private company limited by shares | Dissolved |
| GRANT SINO LIMITED | Private company limited by shares | Live |
| SINO SUCCESS INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| SING FAI INDUSTRIAL HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO SOURCES HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SINO SOURCES ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO ACHIEVE LIMITED | Private company limited by shares | Live |
| SINO LINKER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO BOND INC. LIMITED | Private company limited by shares | Live |
| SINO VICTOR (ASIA) LIMITED | Private company limited by shares | Dissolved |