| SINCERELY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO AMERICA PETROLEUM GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 25-Aug-2014 |
| CHUEN SING STAGE WORKS LIMITED | Private company limited by shares | Live |
| SING WA ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO RICH PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SINO RELIANCE LIMITED | Private company limited by shares | Dissolved |
| JET SINO LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Nov-2001 |
| GROUP SINO LIMITED | Private company limited by shares | Dissolved |
| TOP SINO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINCERE INSURANCE AGENT LIMITED | Private company limited by shares | Dissolved |
| SINO FORTUNE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SING FAI CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINCERE TALENT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ROYAL SINCERE LIMITED | Private company limited by shares | Dissolved |
| SINGULUS VIKA CHINA LIMITED | Private company limited by shares | Dissolved |
| SINCERE HILL LIMITED | Private company limited by shares | Live |
| SINO ETERNAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINCERE LINK LIMITED | Private company limited by shares | Dissolved |
| SINO EXPERT (HK) LIMITED | Private company limited by shares | Dissolved |
| SINCERE EDUCATIONAL ORGANISATION LIMITED | Company limited by guarantee | Dissolved |
| SINO SPINK GEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAI SING WOOD MODEL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO WOODLAND LIMITED | Private company limited by shares | Dissolved |
| SINO ELECTRONIC TOLLING HK LIMITED | Private company limited by shares | Dissolved |
| SUMMIT SINO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO KENT ASIA LIMITED | Private company limited by shares | Dissolved |
| FRENCH HUA SING GROUP (H.K.) LIMITED | Private company limited by shares | Dissolved |
| YIU SING ENGINEERING (HK) COMPANY LIMITED | Private company limited by shares | Live |
| SINO VICTORY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO FAME SHOES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO ELEGANT LIMITED | Private company limited by shares | Dissolved |
| LAI SING INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO HONEST TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO SYSTEM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO SCORE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO SCORE LIMITED | Private company limited by shares | Live |
| SINO PONY LIMITED | Private company limited by shares | Dissolved |
| SINO FORCE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| YEE SING ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO MASTER IMPORT & EXPORT LIMITED | Private company limited by shares | Dissolved |
| SINO ASSET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINGMALAY COMPANY LIMITED | Private company limited by shares | Live |
| GRAND SINCERE INVESTMENT LIMITED | Private company limited by shares | Live |
| GRAND SINCERE TRADING LIMITED | Private company limited by shares | Live |
| SINO LINK (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINCERE RANK LIMITED | Private company limited by shares | Dissolved |
| SINO TOP LIMITED | Private company limited by shares | Dissolved |
| SINO RANK LIMITED | Private company limited by shares | Dissolved |
| SINO GROWTH LIMITED | Private company limited by shares | Live |
| SINO SPIRIT TRADING LIMITED | Private company limited by shares | Live |
| SINEN LIMITED | Private company limited by shares | Dissolved |
| SINOLINK LIMITED | Private company limited by shares | Dissolved |
| SINERY LIMITED | Private company limited by shares | Dissolved |
| SINEX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINEX INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINCERE ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO EXPRESS INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ALLIED SINO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SING FUNG ELECTRICAL WORKS LIMITED | Private company limited by shares | Live |
| SINCO METALS LIMITED | Private company limited by shares | Live |
| SINO EPOCH LIMITED | Private company limited by shares | Dissolved |
| SINO ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ROYAL SINCERE ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINOSONIC LIMITED | Private company limited by shares | Dissolved |
| SINO PREMIER LIMITED | Private company limited by shares | Dissolved |
| SINO CHANCE LIMITED | Private company limited by shares | Dissolved |
| SINO TREASURE LIMITED | Private company limited by shares | Dissolved |
| YET SING TYRE & ELECTRIC MOTORS CO. LIMITED | Private company limited by shares | Dissolved |
| SHIN HO SING OCEAN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS PROPERTIES (HK) LIMITED | Private company limited by shares | Live |
| SINCERE ELECTRICAL & ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO-FUTURE HITECH INVESTMENTS LIMITED | Private company limited by shares | Live |
| PACIFIC SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO FIELD (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO BASE SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SINO EARTH LIMITED | Private company limited by shares | Live |
| SINO SILVER LIMITED | Private company limited by shares | Dissolved |
| CHINA SINO LIMITED | Private company limited by shares | Live |
| FIRST SINCERE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO CURRENCY CAPITAL INVESTMENT CO. LIMITED | Private company limited by shares | Dissolved |
| SINODRAGON MARITIME LIMITED | Private company limited by shares | Live |
| SINO IST SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SINO STRONG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Sino Concept Limited | Private company limited by shares | Dissolved |
| SINO MODERN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| STANDARD SINO (HK) LIMITED | Private company limited by shares | Live |
| SING FU INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO LAND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINCERE LANE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS (HK) SHIPPING LIMITED | Private company limited by shares | Live |
| SINO LEGEND INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SINOPLUS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO CROWN TRANSPORTATION LIMITED | Private company limited by shares | Live |
| SINCERE LUCK LIMITED | Private company limited by shares | Live |
| SINO ADVANCE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO-AMERICA (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SINO BRIGHT INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOWEALTH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RICH SINO (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SINO CHARM INVESTMENT LIMITED | Private company limited by shares | Live |