| YAT SING PRINTING MACHINERY LIMITED | Private company limited by shares | Dissolved |
| SINO LINK (ASIA) LIMITED | Private company limited by shares | Live |
| SINO WAY ELECTRONICS LIMITED | Private company limited by shares | Live |
| MEI SING (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SINOTEC INTERNATIONAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO BRIGHTER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LI FUNG (LAP SING) PLASTIC PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| CHINA SINGING ENGLISH GROUP LIMITED | Private company limited by shares | Dissolved |
| SINOWILL GARMENT LIMITED | Private company limited by shares | Dissolved |
| Sino Asia Minerals Limited | Private company limited by shares | Dissolved |
| SINO RESOURCES AND MINING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| VAST SINO LIMITED | Private company limited by shares | Dissolved |
| SINO RESOURCES INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINTABOND LIMITED | Private company limited by shares | Dissolved |
| SINO-HK LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| SING HING CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO CREST LIMITED | Private company limited by shares | Dissolved |
| SINO HORSE LIMITED | Private company limited by shares | Live |
| EVER SING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| GIC SING TRADING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SINO LNT CO. LIMITED | Private company limited by shares | Dissolved |
| WAH SING MANAGEMENT LIMITED | Private company limited by shares | Live |
| SMARTEN SINO LIMITED | Private company limited by shares | Live |
| SINO FORTUNE INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO INT'L ENTERPRISES GROUP LIMITED | Private company limited by shares | Dissolved |
| SINKO BRIGHT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOEXPRESS INTERNATIONAL LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| SINO CHAMPION TRADING LIMITED | Private company limited by shares | Dissolved |
| GREAT SINO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO PROSPER MINERALS INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO PROSPER MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINOGREEN INVESTRADE LIMITED | Private company limited by shares | Live |
| SINOGATE INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HONGKONG SINOPEAK PETROLEUM EQUIPMENT TRADING LIMITED | Private company limited by shares | Live |
| SINO LINKER CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO DIGITAL SATELLITE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO DRAGON (H.K.) LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Oct-2010 |
| WAH SING INTERNATIONAL FINANCE RESEARCH CENTRE LIMITED | Private company limited by shares | Live |
| HONG KONG KIN SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SINO MEGA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO FAITHFUL LIMITED | Private company limited by shares | Dissolved |
| SINO FAITH LIMITED | Private company limited by shares | Live |
| SINFA INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| TAI SING ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO HOPE INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINO GALAXY GROUP LIMITED | Private company limited by shares | Live |
| SINOUX SYSTEMS LIMITED | Private company limited by shares | Live |
| HONG KONG SING TIN YEE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO KING ( H. K. ) RESOURCES LIMITED | Private company limited by shares | Live |
| SINOWORKS FAR EAST LIMITED | Private company limited by shares | Dissolved |
| SINO MIRACLE INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINBAD TRADING (HK) LIMITED | Private company limited by shares | Live |
| SINCE ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SINO-POWER GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| SINO WORLD PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SINOCORP REALTY (H.K.) LIMITED | Private company limited by shares | Live |
| SINOPROCUR LIMITED | Private company limited by shares | Live |
| CHEUK SING GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO WAGON SHIPPING (HONG KONG) LIMITED | Private company limited by shares | Live |
| GLOBAL SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO YIELD TRADING GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO SOLAR LIMITED | Private company limited by shares | Live |
| SINNET GLOBAL TRADING LIMITED | Private company limited by shares | Live |
| MEGA SINO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ALLIED SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO FUTURE TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO MILLION INVESTMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOSTAR (HONG KONG) GROUP COMPANY LIMITED | Private company limited by shares | Live |
| SINOTEX ENTERPRISE GROUP LIMITED | Private company limited by shares | Dissolved |
| Sino NetCom (Hong Kong) Limited | Private company limited by shares | Live |
| SINWA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO DYNASTY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| MARTARELLO LI PYROTECHNIC SINO ITALIAN CO., LIMITED | Private company limited by shares | Live |
| PACIFIC SINO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINOMED SCIENTIFIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| SinoTec Engineering and Trading Limited | Private company limited by shares | Live |
| SINOSTATE COMMERCE LIMITED | Private company limited by shares | Live |
| TAT SING TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Live |
| SINO WKK.HK LIMITED | Private company limited by shares | Dissolved |
| SINODEX TRADING CO. LIMITED | Private company limited by shares | Live |
| GREAT SINO INTERNATIONAL GROUP INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO SPRING INVESTMENT LIMITED | Private company limited by shares | Live |
| SMART SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| CHINA SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINTRONIC (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SINO LIAN BANG INTERNATIONAL INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| SINO QC INVESTMENT CONSULTANT LIMITED | Private company limited by shares | Live Ceased dormancy on 15-Jul-2015 |
| SINOLUCK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WISON (SINCERE) PRODUCTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SACRED SINGERS HONG KONG COMPANY LIMITED -THE- | Company limited by guarantee | Live |
| FRANCE SINCO INT'L COSMETIC GROUP LIMITED | Private company limited by shares | Live |
| SINO REGENT ENTERPRISES LIMITED | Private company limited by shares | Live |
| TIN SING METAL MANUFACTORY CO LIMITED | Private company limited by shares | Live |
| MILLION SINO LIMITED | Private company limited by shares | Dissolved |
| SINOPOWER HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SINO REGION LIMITED | Private company limited by shares | Dissolved |
| SINO CHANNEL LIMITED | Private company limited by shares | Dissolved |
| SINO RICH PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO ROYAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO TIMES GROUP LIMITED | Private company limited by shares | Live |