| TUNG SING TOUR AND TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG SING PRINTING COMPANY LIMITED | Private company limited by shares | Live |
| THIEN SING TRADING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINO-OCCIDENTAL TRADE PROMOTION LIMITED | Private company limited by shares | Dissolved |
| HOI WING & TUNG SING WO TANNERY LIMITED | Private company limited by shares | Dissolved |
| SUN YEUNG SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING SENG GENERAL MERCHANDISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG SING GYMNASIUM ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| HOK SING WAH TRADING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| DAH SING INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINCOMSPEC LIMITED | Private company limited by shares | Dissolved |
| SINOCONTINENTAL LIMITED | Private company limited by shares | Dissolved |
| SINGKEL INVESTMENT LIMITED | Private company limited by shares | Live |
| LUK HOP SING SHUT LIMITED | Company limited by guarantee | Live |
| SING SHIUN LOCK COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SINGMASTATE (H.K.) LIMITED | Private company limited by shares | Dissolved |
| NAN SING CLOTHING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOTECH ASIA LIMITED | Private company limited by shares | Live |
| WAH SING POLY-BAGS MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| HOI SING EQUIPMENTS COMPANY LIMITED | Private company limited by shares | Live |
| KUM SING DISPENSARY LIMITED | Private company limited by shares | Dissolved |
| SINDERING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG SINTER METALS LIMITED | Private company limited by shares | Dissolved |
| KIN LAG SING PLASTIC MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINPHLEX LIMITED | Private company limited by shares | Dissolved |
| SUN SING PING ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINGORA LIMITED | Private company limited by shares | Dissolved |
| SING CHAI TAN LIMITED | Company limited by guarantee | Live |
| SINIGALIA COMPANY LIMITED | Private company limited by shares | Live |
| SING TAT LEE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING TUNG LEE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING KWONG KAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING KWONG LEE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YUK SING GARMENT MANUFACTORY (H.K.) LIMITED | Private company limited by shares | Live |
| KIN SING (EI CORE) COMPANY LIMITED | Private company limited by shares | Dissolved |
| KIU SING PLASTIC FACTORY, LIMITED | Private company limited by shares | Dissolved |
| HIM SING INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| WINTER SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGARCH CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| SINGARCH CONSORTIUM LIMITED | Private company limited by shares | Dissolved |
| SINO AMERICA DELIGHTS LIMITED | Private company limited by shares | Dissolved |
| PAK SING CHEONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINDUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| YUT SING (CLOCKS) LIMITED | Private company limited by shares | Dissolved |
| BON SING INVESTMENT COMPANY, LIMITED | Private company limited by shares | Dissolved |
| TAK SING AIR SYSTEM & EQUIPMENT, LIMITED | Private company limited by shares | Dissolved |
| SING LEE FAT INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINGLETON COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING TUNG REALTY COMPANY LIMITED | Private company limited by shares | Live |
| KENT SING LIMITED | Private company limited by shares | Dissolved |
| SINWAY INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO MERCHANTRY INTERNATIONAL (AGENCIES) LIMITED | Private company limited by shares | Dissolved |
| SING FAIR INDUSTRIAL (ELECTRONICS) LIMITED | Private company limited by shares | Dissolved |
| PAK WAN TUNG TAI SING FAT CHO CO., LIMITED | Company limited by guarantee | Dissolved |
| SINO-STATES TOURISM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TACK SING PRINTING AND CAN MANUFACTORY LIMITED | Private company limited by shares | Dissolved |
| WAH SING SHOES FACTORY LIMITED | Private company limited by shares | Dissolved |
| SINO ADVERTISING AND PUBLICATION LIMITED | Private company limited by shares | Dissolved |
| SINO-ASIAN PUBLICATIONS LIMITED | Private company limited by shares | Dissolved |
| CHAT SING KUNG SIN SOI CO. LIMITED | Company limited by guarantee | Live |
| SINOREX LIMITED | Private company limited by shares | Live |
| KEEP SING LIMITED | Private company limited by shares | Dissolved |
| FURNITURE PEOPLE (SINO AMERICAN) LIMITED -THE- | Private company limited by shares | Dissolved |
| SINO ESTATES MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINGSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINKO AIR CONDITIONING (HONG KONG) LIMITED | Private company limited by shares | Live |
| KOR SING ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| SINCERE TOURS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| DAO SING INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| SINO STUDIO (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| PEAK D. SING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO MASTER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SING-HO FINANCE COMPANY LIMITED | Private company limited by shares | Live |
| SHING SING ELECTRIC APPLIANCES COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIN SING WATCH LIMITED | Private company limited by shares | Dissolved |
| SINGCOSMOS SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO EXPORTERS (AFRICA) LIMITED | Private company limited by shares | Dissolved |
| HOP SING CONTAINER SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO CAN ENGINEERING CONSULTANTS COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNG SING TOYS MANUFACTORY LIMITED | Private company limited by shares | Live |
| SING FAI GARMENT MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINKO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINKY LIMITED | Private company limited by shares | Dissolved |
| SINGER TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO CATERING ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KO SING MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| KONG SING INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| NEW SINO GASES COMPANY LIMITED | Private company limited by shares | Live |
| SINO MASTER CHINA TRADE LIMITED | Private company limited by shares | Dissolved |
| YU'S TIN SING ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO-UNION TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO OILTOOLS INT'L LIMITED | Private company limited by shares | Dissolved |
| SINOSIN LIMITED | Private company limited by shares | Dissolved |
| SINOLINK OVERSEAS LIMITED | Private company limited by shares | Dissolved |
| SINIKKA COMPANY LIMITED | Private company limited by shares | Live |
| SINO AQUACULTURE LIMITED | Private company limited by shares | Dissolved |
| SINO EDIBLE OIL MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO WATCH & COMPONENTS LIMITED | Private company limited by shares | Live |
| CHENG SING COMPANY LIMITED | Private company limited by shares | Live |