| WING SING TRANSPORTATION LIMITED | Private company limited by shares | Live |
| SINO STRONG LIMITED | Private company limited by shares | Live |
| SINO ACE INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO PACIFIC INTERNATIONAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| PROSPER SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| Sino KAMCO Hong Kong, Limited | Private company limited by shares | Dissolved |
| SINOTOP PROPERTIES LIMITED | Private company limited by shares | Live |
| SINCERE LINK LIMITED | Private company limited by shares | Live |
| SINO CONSULTING & TRADING LIMITED | Private company limited by shares | Dissolved |
| PRECISION SINO LIMITED | Private company limited by shares | Dissolved |
| SINOLINK INT'L SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| SINOPAK INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SUN SING MOTORS LIMITED | Private company limited by shares | Dissolved |
| Sinfachem Limited | Private company limited by shares | Live |
| SINCERE EFFORT (ASIA) LIMITED | Private company limited by shares | Live |
| SINO PROMISE CULTURE & MEDIA LIMITED | Private company limited by shares | Dissolved |
| HARBOUR SINO LIMITED | Private company limited by shares | Live |
| SINO ENERGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| KWAN SING (HK) LIMITED | Private company limited by shares | Live |
| Sino Prosper State Gold HK Limited | Private company limited by shares | Live |
| SINOMET MINING CO. LIMITED | Private company limited by shares | Dissolved |
| SINO BEST CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO - US MEDICAL SPECIALTIES LIMITED | Private company limited by shares | Live |
| HONG SING DISPENSARY LIMITED | Private company limited by shares | Live |
| Sinolinks Resources Limited | Private company limited by shares | Live |
| SINO GRANDEUR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Xiamen Sinolees International Trade Limited | Private company limited by shares | Dissolved |
| SINGER INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Wang Sing Asia Company Limited | Private company limited by shares | Dissolved |
| Sino Tech International Trade Co., Limited | Private company limited by shares | Live |
| HUASHANG (SINO) INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SINO EUROPEAN BUSINESS AGENCY LIMITED | Private company limited by shares | Dissolved |
| SINCERE PROPERTY INVESTMENTS LIMITED | Private company limited by shares | Live |
| SingBoom (H.K.) Technology Industrial Limited | Private company limited by shares | Live |
| WEALTHY SINO LIMITED | Private company limited by shares | Dissolved |
| SINO HILL LIMITED | Private company limited by shares | Dissolved |
| SINA LIB LIMITED | Private company limited by shares | Dissolved |
| SINO LUCK ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| SING YUI INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINO LIFE CORPORATION LIMITED | Private company limited by shares | Live |
| SINGAL INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| SINO NET SOLUTION LIMITED | Private company limited by shares | Dissolved |
| SING TAK LI WATCH LIMITED | Private company limited by shares | Dissolved |
| SINO EASTERN SHIPPING LIMITED | Private company limited by shares | Live |
| SINO SOURCE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINAM LIMITED | Private company limited by shares | Live |
| SINO QUALITY CONSULT LIMITED | Private company limited by shares | Dissolved |
| SINO LINKAGE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO SPIRIT GROUP LIMITED | Private company limited by shares | Live |
| MERIT SINO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO GAINER TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO ELECTRONIC&TELECOMMUNICATION CO., LIMITED | Private company limited by shares | Live |
| SINOTEK INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| TOP SINCERE LIMITED | Private company limited by shares | Dissolved |
| SING FAI TRADING (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| SINO MOTORS TECH CO., LIMITED | Private company limited by shares | Live |
| SINO-SHANDONG PHARMA CO., LIMITED | Private company limited by shares | Live |
| YING SING TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HOI SING INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINO-ENERGY-CONSULTING LIMITED | Private company limited by shares | Dissolved |
| SINO HYDRAULIC DRIVES & TRANSMISSIONS LIMITED | Private company limited by shares | Dissolved |
| SINO PACIFIC TRADING COMPANY LIMITED | Private company limited by shares | Live |
| WUI SING MOLDING LIMITED | Private company limited by shares | Live |
| SINO FUND TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO MAP INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO TECH PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO STAR MINERALS LIMITED | Private company limited by shares | Live |
| SINO PAPER MACHINERY LIMITED | Private company limited by shares | Dissolved |
| HANG SING ENTERPRISES (HOLDING) LIMITED | Private company limited by shares | Live |
| SINO SUCCESS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO WORLD ASIA GROUP LIMITED | Private company limited by shares | Dissolved |
| SINAGRO HK LIMITED | Private company limited by shares | Dissolved |
| SINO ASIA SHIPPING LIMITED | Private company limited by shares | Live |
| SINGYUAN TECH SERVICE LIMITED | Private company limited by shares | Dissolved |
| SinoWealth Capital Limited | Private company limited by shares | Live |
| Singcent Technology Limited | Private company limited by shares | Dissolved |
| SINO INTERNATIONAL STUDIO CO. LIMITED | Private company limited by shares | Live |
| GREAT SINO CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO PROMOTION (H.K.) LIMITED | Private company limited by shares | Live |
| Sino Glory International Investment Limited | Private company limited by shares | Live |
| SINKNA CO., LIMITED | Private company limited by shares | Dissolved |
| SINO UP LIMITED | Private company limited by shares | Live |
| Sino State Group Limited | Private company limited by shares | Live |
| SINO RESOURCES CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SINO WISH LIMITED | Private company limited by shares | Live |
| SINO TOP ENGINEERING LIMITED | Private company limited by shares | Live |
| HONG KONG SINO SHADOW STUDIO LIMITED | Private company limited by shares | Dissolved |
| SINO TRADE PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO STONE AND TOOLS INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| MAH SING INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SINO LIFE SCIENCE LIMITED | Private company limited by shares | Dissolved |
| SINOTENG INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| SINO-MAPLE RESOURCES LIMITED | Private company limited by shares | Live |
| Sino-Milano Limited | Private company limited by shares | Live |
| SINOPOWER INTERNATIONAL CORPORATION LIMITED | Private company limited by shares | Live |
| SINO MALL LIMITED | Private company limited by shares | Live |
| SINO WINNING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO SUPERB LIMITED | Private company limited by shares | Live |
| Sinosia Investment Limited | Private company limited by shares | Live |
| SINO CHARTER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |