| 3 Sing Technology Limited | Private company limited by shares | Live |
| Chu Sing Technology Limited | Private company limited by shares | Live |
| KA SING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sing Yat Technology Limited | | Live |
| Po Sing Technology Limited | | Live |
| SING KIN TECHNOLOGY LIMITED | | Live |
| Kit Sing Technology Company Limited | | Live |
| NORTH AMERICA SIN SING TECHNOLOGY HOLDING LIMITED | Private company limited by shares | Dissolved |
| SING FAI (CHINA) TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Chong Sing Technology Company Limited | | Live |
| TAT SING TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Hua Sing Technology Co., Limited | | Live |
| SING YIP TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| YAN SING (HONGKONG) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK YUNG SING TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SING LEE ELECTRONIC TECHNOLOGY (GROUP) LIMITED | Private company limited by shares | Dissolved |
| WANG SING ELECTRONIC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MING SING TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| SUN HANG SING TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HANG SING TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| ASIA SIN SING TECHNOLOGY HOLDING LIMITED | Private company limited by shares | Dissolved |
| BAO SING ENVIRONMENTAL TECHNOLOGY (HOLDING) COMPANY LIMITED | Private company limited by shares | Dissolved |
| DON SING INNOVATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SING SUN TECHNOLOGY (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| KWUN SING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SING LONG TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| MING SING TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Sing Pao Media Network Technology (HK) Limited | Private company limited by shares | Live |
| Tung Sing Technology Co., Limited | Private company limited by shares | Live |
| WANG SING TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| WHOLE SING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WING SING ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WING SING TECHNOLOGY (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING ZOEK TECHNOLOGY INVESTMENTS LIMITED | Private company limited by shares | Live |
| KO MEI SING TECHOLOGY LIMITED | Private company limited by shares | Live |
| SING TECK HUA LIMITED | Private company limited by shares | Dissolved |
| TAI SING TEMPLE BUDDISH HALL LIMITED | Company limited by guarantee | Dissolved |
| THAI SING LIMITED | Private company limited by shares | Dissolved |
| THAI SING THAI LIMITED | Private company limited by shares | Live |
| THAI WAH SING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SING THAI LUNG LIMITED | Private company limited by shares | Dissolved |
| Thai Sing International Trading Company Limited | | Live |
| MING SING THEATRE, LIMITED | Private company limited by shares | Dissolved |
| PO SING HIGH-TECH ANTI-CORROSIVE & THERMO-INSULATION MATERIALS CO. LIMITED | Private company limited by shares | Dissolved |
| THOMAS SING CHO CHENG COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIEN SING HOLDING GROUP LIMITED | Private company limited by shares | Live |
| SING FAI Ti-I LIMITED | Private company limited by shares | Live |
| SING WAN TIMBER COMPANY LIMITED | Private company limited by shares | Live |
| SING PO TIMER COMPANY LIMITED | Private company limited by shares | Live |
| TIN TAK SING KAU TAT TAK TAO TONG LIMITED | Company limited by guarantee | Live |
| SING KEI TONG LIMITED | Private company limited by shares | Dissolved |
| Sing Fat Tong Limited | Private company limited by shares | Live |
| GAA SING JOENG SANG TONG COMPANY LIMITED | | Live |
| TAK SING TONG PHARMACEUTICAL COMPANY LIMITED | | Live |
| SING WO TOUR BUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUN SING TOUR COMPANY LIMITED | Private company limited by shares | Live |
| SING WO TOUR BUS MANAGEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG SING TOUR AND TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIN SING TOURIST BUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sing Tat Tourist Bus Company Limited | Private company limited by shares | Live |
| SING SEE TOURIST ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| SING TAO TOURS LIMITED | Private company limited by shares | Dissolved |
| KA & SING TOURS LIMITED | Private company limited by shares | Dissolved |
| Sing Wai Tour's Bus Co. Limited | Private company limited by shares | Live |
| MING SING TOURS LIMITED | Private company limited by shares | Live |
| SING MING TOURS LIMITED | Private company limited by shares | Live |
| SING TOWER LIMITED | Private company limited by shares | Dissolved |
| SING TOWER ELECTRICAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| SING TOWER ELECTRONIC CO., LIMITED | Private company limited by shares | Dissolved |
| SING TOWER METAL PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| WING SING TOWING (H.K.) LIMITED | Private company limited by shares | Live |
| SING SING TOYS LIMITED | Private company limited by shares | Dissolved |
| SING TAT TOYS COMPANY LIMITED | Private company limited by shares | Dissolved |
| PO SING TOYS COMPANY LIMITED | Private company limited by shares | Live |
| KAI SING TOYS LIMITED | Private company limited by shares | Dissolved |
| TAI SING TRADE LIMITED | Private company limited by shares | Dissolved |
| SING RUI TRADE LIMITED | Private company limited by shares | Live |
| Kit Sing Trade Company Limited | | Live |
| WIN SING TRADE LIMITED | | Live |
| FUK SING TAK (HK) TRADE CO., LIMITED | Private company limited by shares | Live |
| Sing Kong Trade and Investment Co., Limited | Private company limited by shares | Live |
| DAK SING HING INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| KONG SING TRADE LIMITED | Private company limited by shares | Live |
| TUNG SING TAI INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| TUNG SING TAI INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| SUI SING TRADING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SING KIU TRADING LIMITED | Private company limited by shares | Dissolved |
| SING WAH TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PO SING TRADING COMPANY LIMITED | Private company limited by shares | Live |
| KAM SING TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HOK SING WAH TRADING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| YUK SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GO SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING DIM TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING FAT TRADING COMPANY LIMITED | Private company limited by shares | Live |
| GIP SING TRADING LIMITED | Private company limited by shares | Dissolved |
| KA SING TRADING LIMITED | Private company limited by shares | Dissolved |
| CHI SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOI SING TRADING LIMITED | Private company limited by shares | Dissolved |
| LOK SING TRADING LIMITED | Private company limited by shares | Dissolved |