| SINO DIGIT TRADING LIMITED | Private company limited by shares | Live |
| SINO CHAMPION INC LIMITED | Private company limited by shares | Live |
| SINO OCEAN ENERGY GROUP CO., LIMITED | Private company limited by shares | Live |
| SINO AUTO PARTS GROUP COMPANY LIMITED | Private company limited by shares | Live |
| SINO-CON MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| SINO ASIA MING FAT GROUP LIMITED | Private company limited by shares | Live |
| SINO HARMONY CHINA LIMITED | Private company limited by shares | Dissolved |
| GOLD SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Hong Kong Sino Health Care Limited | Private company limited by shares | Live |
| SINO METAL IMPORT&EXPORT LIMITED | Private company limited by shares | Live |
| KONG SING (HONG KONG) TRADING CO., LIMITED | Private company limited by shares | Live |
| YAT SING RESTAURANT LIMITED | Private company limited by shares | Live |
| Wah Fu Sing Yip Limited | Private company limited by shares | Live |
| SINO RISE PROPERTIES LIMITED | Private company limited by shares | Live |
| Sing Fai Hong Trading Limited | Private company limited by shares | Live |
| SING HO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sino-European Aegean Sea Tourism Limited | Private company limited by shares | Live |
| ASIA SINSUN TRADE CO., LIMITED | Private company limited by shares | Live |
| HANG SING HONG KONG COMPANY LIMITED | Private company limited by shares | Live |
| SINO HONOUR FAR EAST LIMITED | Private company limited by shares | Live |
| SINGLE STUDIOS LIMITED | Private company limited by shares | Live |
| SINO-US GLORY INDUSTRIA LIMITED | Private company limited by shares | Live |
| Sintec Industrial Co., Limited | Private company limited by shares | Live |
| Sinotide Technology (Hongkong) Limited | Private company limited by shares | Live |
| YAU SING LIMITED | Private company limited by shares | Live |
| SINLOK COMPANY LIMITED | Private company limited by shares | Live |
| TAT SING CHEONG GROUP LIMITED | Private company limited by shares | Live |
| SinoFirst Universal Company Limited | Private company limited by shares | Live |
| Since Group Limited | Private company limited by shares | Live |
| SINO STAR GROUP (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO-HK FINANCE COMPANY LIMITED | Private company limited by shares | Live |
| SINAER CO., LIMITED | Private company limited by shares | Live |
| Sinma International Group Co., Limited | Private company limited by shares | Live |
| SINO UNITY INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO JOINER LIMITED | Private company limited by shares | Live |
| SINMA (HK) CO., LIMITED | Private company limited by shares | Live |
| SINCERE WISDOM LIMITED | Private company limited by shares | Live |
| SINO RICHFIELD LIMITED | Private company limited by shares | Live |
| SINO UNIVERSAL INC LIMITED | Private company limited by shares | Live |
| SINO PACIFIC CORPORATION LIMITED | Private company limited by shares | Live |
| SINO PANDA LIMITED | Private company limited by shares | Live |
| SINO EDGE ENERGY GROUP CO., LIMITED | Private company limited by shares | Live |
| SINO GOLD INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| SINO AFRICA INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO GAS (HK) LIMITED | Private company limited by shares | Dissolved |
| SINO LINKER INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO WIN HONG KONG LIMITED | Private company limited by shares | Live |
| SINO COPPER HONG KONG LIMITED | Private company limited by shares | Live |
| SINO COPPER LIMITED | Private company limited by shares | Live |
| Hong Kong Sinpower International Engineering Consulting Co., Limited | Private company limited by shares | Live |
| ON SINO LIMITED | Private company limited by shares | Live |
| SINO INDUSTRIAL SUPPLIES CO., LIMITED | Private company limited by shares | Live |
| SINO MEIR INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| TUNG SING STRUCTURAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Sinostar Global Management Co., Limited | Private company limited by shares | Live |
| SMART SINO INC LIMITED | Private company limited by shares | Live |
| SINO SANAK LIMITED | Private company limited by shares | Live |
| SINO MARK PROPERTIES LIMITED | Private company limited by shares | Live |
| HONG KONG HOP SING INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| Sino Precision Machining Co., Limited | Private company limited by shares | Live |
| Sing Yeahoo Limited | Private company limited by shares | Live |
| SINO NORTH FINANCIAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO BASE CONTRACTORS LIMITED | Private company limited by shares | Live |
| ASSOCIATION OF SINO ENTERPRISES PROMOTION LIMITED | Company limited by guarantee | Live |
| HANG FOOK SING INVESTMENT LIMITED | Private company limited by shares | Live |
| YU SING ENGINEERING LIMITED | Private company limited by shares | Live |
| SINOMATERIAL LIMITED | Private company limited by shares | Live |
| SINO SKYLAND LIMITED | Private company limited by shares | Live |
| SINCERE GOLD PROPERTIES LIMITED | Private company limited by shares | Live |
| SINO METAL INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| YAT SING SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| Sino-Turk HK Technology Limited | Private company limited by shares | Live |
| Fung Sing Seafood Wholesale Limited | Private company limited by shares | Live |
| SINO NEW ECONOMIC INDUSTRY INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SINO FORTUNE HOLDING GROUP LIMITED | Private company limited by shares | Live |
| PAK SING DYNASTY ENTERPRISE LIMITED | Private company limited by shares | Live |
| Sing Hill Limited | Private company limited by shares | Live |
| OL SINGER PRODUCTIONS HK LIMITED | Private company limited by shares | Live |
| SINO BROTHERS TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| FUNG SING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SUNNY SINO TRADING LIMITED | Private company limited by shares | Live |
| SINO GLOBAL PARTNERS LIMITED | Private company limited by shares | Live |
| SINO SEA TRADING LIMITED | Private company limited by shares | Live |
| SINO FORTUNE TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SINO WEALTH MANAGEMENT CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| SINO VIEW TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SUN SING MEDICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| SING YU (HK) TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINO KING BUSINESS CO., LIMITED | Private company limited by shares | Dissolved |
| SINO IMP & EXP CO., LIMITED | Private company limited by shares | Live |
| SINO PROFESSIONAL LIMITED | Private company limited by shares | Live |
| Sino Private Group Limited | Private company limited by shares | Live |
| CHIU SING ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO FOCUS CONSULTANTS LIMITED | Private company limited by shares | Live |
| CENTURY SINO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO TIME INC LIMITED | Private company limited by shares | Live |
| SINCERE H.K ELECTRONIC TECHONOLOGY CO LIMITED | Private company limited by shares | Live |
| HK Sino Joy International Investments Limited | Private company limited by shares | Live |
| YUK SING INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| YAT SING PROPERTIES LIMITED | Private company limited by shares | Live |