| TOP SINO TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO WELL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SINO ENERGY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO EXPRESS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| NGAI SING FINANCE COMPANY LIMITED | Private company limited by shares | Live |
| SKY SINO GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO ENERGY INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO GRAND INVESTMENT LIMITED | Private company limited by shares | Live |
| POSH SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CHI SING DEVELOP LIMITED | Private company limited by shares | Dissolved |
| SINOMODEL LIMITED | Private company limited by shares | Live |
| SINO GROUP CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO FULL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO POINT INVESTMENT LIMITED | Private company limited by shares | Live |
| SING FUNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SING (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| VICTORY SINO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINO VISTA LIMITED | Private company limited by shares | Dissolved |
| SINO LIFECARE TECHNOLOGY (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ITALY SINBO SHOES & GARMENTS INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| TUNG SING (HONG KONG) ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| SINO ASIA LINK LIMITED | Private company limited by shares | Dissolved |
| SINCERELY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FRENCH SING YAU (INT'L) FINERY LIMITED | Private company limited by shares | Dissolved |
| SINO TOP TRADING LIMITED | Private company limited by shares | Live |
| SINO-AMERICA CAPITAL MARKET RESEARCH & CONSULTANT LIMITED | Private company limited by shares | Live |
| SINOPAC INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| SINO TRADER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING HONG LIMITED | Private company limited by shares | Dissolved |
| SINO EFFORT LIMITED | Private company limited by shares | Dissolved |
| SUN SINCERE LIMITED | Private company limited by shares | Dissolved |
| SINO ADVANCE INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOPHI HEALTHCARE PARTNERS LIMITED | Private company limited by shares | Live |
| SINO RISE INVESTMENT LIMITED | Private company limited by shares | Live |
| WAH SING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO LIGHT HONG KONG LIMITED | Private company limited by shares | Live |
| SINOMETALS SHIPPING LIMITED | Private company limited by shares | Live |
| SING HONG & ASSOCIATES LIMITED | Private company limited by shares | Live |
| DIGIT SINO LIMITED | Private company limited by shares | Live |
| SINOWAY OIL & GAS LIMITED | Private company limited by shares | Dissolved |
| YUK SING (LO'S) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOCON HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SINOSALE LIMITED | Private company limited by shares | Dissolved |
| SINOPEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO EQUITY LIMITED | Private company limited by shares | Dissolved |
| SINO LEADER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINOFORD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO RIVER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINOPAC (HONG KONG) NOMINEES LIMITED | Private company limited by shares | Dissolved |
| SINO COUNTRY LIMITED | Private company limited by shares | Dissolved |
| WAH SING CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SinoConnect Group Limited | Private company limited by shares | Live |
| SINO-AMERICAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SING LEE METAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINOSUN CREATION LIMITED | Private company limited by shares | Dissolved |
| SINO SPARK LIMITED | Private company limited by shares | Dissolved |
| WAH SING ADVERTISING (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO LINKS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SING YIU ELECTRONICS (HONG KONG) CO. LIMITED | Private company limited by shares | Dissolved |
| TUNG SING CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| SINO MED PUBLISHING COMPANY LIMITED | Private company limited by shares | Live |
| TRIUMPH SINO (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINOSUN ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SINOTRANS (HONGKONG) AIR TRANSPORTATION DEVELOPMENT CO. LIMITED | Private company limited by shares | Live |
| TAIPEI SING MOU EXPRESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SKY SINCERE LIMITED | Private company limited by shares | Dissolved |
| SINO ELITE EDUCATION LIMITED | Private company limited by shares | Dissolved |
| SINOGAIN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINOTOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO SHEEN PROPERTIES LIMITED | Private company limited by shares | Live |
| SINOTRONICS LIMITED | Private company limited by shares | Dissolved |
| SINO GLOBAL HEALTHCARE LIMITED | Private company limited by shares | Dissolved |
| BING SING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SINOEXPRESS LOGISTICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOREACH LIMITED | Private company limited by shares | Live |
| SINO CAPTAIN LIMITED | Private company limited by shares | Live |
| SINO STEP INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINKO PRODUCTS (HK) LIMITED | Private company limited by shares | Live |
| SINO EAST RESOURCES LIMITED | Private company limited by shares | Live |
| SINO TECHNOLOGIES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WAH SING (HONG KONG) INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINOGAIN TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO-BATHROOMS HOLDING CO., LIMITED | Private company limited by shares | Dissolved |
| SINO ALLIANCE (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO CHOICE LIMITED | Private company limited by shares | Dissolved |
| SINO HOOVER CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| YUK SING ELECTRICAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINONET INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINOMIX BUSINESS SOLUTION LIMITED | Private company limited by shares | Dissolved |
| SINO FIELD (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINOCITI LIMITED | Private company limited by shares | Live |
| SINOCOMM LIMITED | Private company limited by shares | Live |
| SINO FAME (HONG KONG) FILM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINOWEST INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SINOPAC WORLDWIDE TRADING LIMITED | Private company limited by shares | Dissolved |
| SINOBRIDGE PROPERTIES LIMITED | Private company limited by shares | Live |
| PO SING WINE LIMITED | Private company limited by shares | Dissolved |
| SINO HK EDUCATION LIMITED | Private company limited by shares | Dissolved |
| YUEN SING TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINCERO INTERNATIONAL CONSULTANT LIMITED | Private company limited by shares | Live |