| SINO REALITY INVESTMENTS LIMITED | Private company limited by shares | Live |
| UPBRIGHT SINO HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SINO GRAND INDUSTRY LIMITED | Private company limited by shares | Live |
| SINCLAIR LIMITED | Private company limited by shares | Live |
| SINBADA CO., LIMITED | Private company limited by shares | Dissolved |
| SINO EQUIPMENT AND TRADING LIMITED | Private company limited by shares | Dissolved |
| Launch Sinter Technology Co., Limited | Private company limited by shares | Dissolved |
| SINO TRANSOCEAN SHIPPING LIMITED | Private company limited by shares | Live |
| SINO FORTUNE CORPORATION LIMITED | Private company limited by shares | Dissolved |
| QINGDAO SINCERE TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINOMA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINO WING TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SINO GROUP TRADING LIMITED | Private company limited by shares | Dissolved |
| HANG SING SHOES COMPANY LIMITED | Private company limited by shares | Live |
| SINITRA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| GREAT SINO GLOBAL LIMITED | Private company limited by shares | Dissolved |
| SINO CENTURY GROUP LIMITED | Private company limited by shares | Dissolved |
| HONG KONG (FIRST SINO) SHIPPING LIMITED | Private company limited by shares | Dissolved |
| Good Hope Singers Limited | Company limited by guarantee | Live |
| HONG KONG MAN WING SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO EAST MINERALS LIMITED | Private company limited by shares | Live |
| SINO INS (HONG KONG) INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| TUNG SING CHEUK NGAI TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO LEGEND INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINO LEGEND ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO HARBOUR INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO KNIGHT LIMITED | Private company limited by shares | Dissolved |
| SINO FORTUNE INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Live |
| SINTEX WEALTH CREATION LIMITED | Private company limited by shares | Dissolved |
| SINSYA GROUP LIMITED | Private company limited by shares | Live |
| SINO VANTAGE INVESTMENT LIMITED | Private company limited by shares | Live |
| TAK SING INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| Sino Insurance Brokers Limited | Private company limited by shares | Live |
| SINO FUHAIDUO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOLINK ASIA GROUP LIMITED | Private company limited by shares | Live |
| IU SING CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO-OCEAN LAND (HAINAN) INVESTMENT LIMITED | Private company limited by shares | Live |
| SINCERE PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO TACT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO TOP Engineering Tech. Limited | Private company limited by shares | Live |
| SINO ELITE GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO OASIS LIMITED | Private company limited by shares | Dissolved |
| SINOWEST SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| SINONORTH SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| SINO-GERMAN INVESTMENT INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| Sino European Luxury Group Limited | Private company limited by shares | Live |
| SINO GLOBAL PROPERTIES LIMITED | Private company limited by shares | Live |
| WEALTHY SINO (HK) LIMITED | Private company limited by shares | Live |
| SINO-HK BT COMPANY LIMITED | Private company limited by shares | Live |
| SINO PEACE CORPORATION LIMITED | Private company limited by shares | Live |
| FORTUNE SINO LIMITED | Private company limited by shares | Live |
| SINO CHANNEL LIMITED | Private company limited by shares | Live |
| SING TAI ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SINO CHAMPION ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO GOLD INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO LONGTEAM TECH BUSINESS LIMITED | Private company limited by shares | Live |
| HOI SING (HONG KONG) LIMITED | Private company limited by shares | Live |
| WAH SING CONSTRUCTION ENG. LIMITED | Private company limited by shares | Live |
| LUCKY SINO UNIVERSAL LIMITED | Private company limited by shares | Dissolved |
| SINONIX TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TOP SINCERE PLASTIC MATERIAL LIMITED | Private company limited by shares | Dissolved |
| SINO WEDDING CONSULTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO PHONE COMMUNICATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINOWING INTERNATIONAL TRADING (HK) LIMITED | Private company limited by shares | Live |
| NAM SING INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| HIP SING MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINO ASSET INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO TOP INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINCERE ENERGY TRADING PTE LIMITED | Private company limited by shares | Dissolved |
| SINO WORLD INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| HARVEST SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINAE LIMITED | Private company limited by shares | Dissolved |
| SINO GATEWAY LIMITED | Private company limited by shares | Live |
| SINO EAST TRADING LIMITED | Private company limited by shares | Dissolved |
| SINOLINK HONG KONG INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINARAL HOLDING LIMITED | Private company limited by shares | Live |
| SINTEX INVESTMENT (GROUP) LIMITED | Private company limited by shares | Live |
| SINO EFFORT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO GATHER LIMITED | Private company limited by shares | Live |
| SINO NOVA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINO GREAT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINOWAY DIGITAL HK LIMITED | Private company limited by shares | Live |
| SINO GLOBAL CORPORATION LIMITED | Private company limited by shares | Live |
| SINO WAY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO TOBACCO (HK) LIMITED | Private company limited by shares | Dissolved |
| GREAT SINO (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Shenzhen Sinovel Electronic Co., Limited | Private company limited by shares | Dissolved |
| AMPLE SINO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO VISA INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SINOVO INDUSTRIAL CO. LIMITED | Private company limited by shares | Live |
| SING TRAVEL LIMITED | Private company limited by shares | Live |
| Rankam Sino Industrial Co., Limited | Private company limited by shares | Live |
| SINO GROW LIMITED | Private company limited by shares | Live |
| HONGKONG SINOTRADE CO., LIMITED | Private company limited by shares | Live |
| SINO EAGLE LIMITED | Private company limited by shares | Dissolved |
| SINO BRIGHT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO FAREAST LIMITED | Private company limited by shares | Live |
| SINO LEGEND ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| LOK SING ELECTRICAL (CHINA) LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL (H.K.) INDUSTRY LIMITED | Private company limited by shares | Live |