| SINO-PORT INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| Sinak Limited | Private company limited by shares | Live |
| TAK SING TRADING LIMITED | Private company limited by shares | Dissolved |
| Bok Sing International Trading (HK) Limited | Private company limited by shares | Live |
| SINCERE CARE SERVICE LIMITED | Private company limited by shares | Live |
| TIN SINCE GOLD LIMITED | Private company limited by shares | Dissolved |
| NEWLY SINO INVESTMENTS GROUP LIMITED | Private company limited by shares | Live |
| SINO BERRY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINRO (HONG KONG) LIMITED | Private company limited by shares | Live |
| SINO TEAM INC LIMITED | Private company limited by shares | Live |
| JOIN SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOLIGHTING LEDTECH ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINOWAY INC. LIMITED | Private company limited by shares | Live |
| SINO JOB TRADING LIMITED | Private company limited by shares | Live |
| SINO STRATEGY LIMITED | Private company limited by shares | Dissolved |
| SINO DINGXIN INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| Sinoapply (Hong Kong) Co., Limited | Private company limited by shares | Live |
| SINAE INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SINOVIRTUE CO., LIMITED | Private company limited by shares | Live |
| SINO CHANNEL GLOBAL RESOURCES LIMITED | Private company limited by shares | Live |
| Sincerity Optoelectronic Limited | Private company limited by shares | Dissolved |
| Sino Microtech Co., Limited | Private company limited by shares | Live |
| SINOCARE VILLAGE LIMITED | Private company limited by shares | Live |
| SINO HK LIMITED | Private company limited by shares | Live |
| SINO CHARTER TRADING LIMITED | Private company limited by shares | Dissolved |
| SINO CITY (HONG KONG) LIMITED | Private company limited by shares | Live |
| Sinovate Technology Limited | Private company limited by shares | Live |
| SINCERE INDUSTRIAL DEVELOP LIMITED | Private company limited by shares | Live |
| SINGCO LIMITED | Private company limited by shares | Dissolved |
| SINO SOLAR (HONG KONG) LIMITED | Private company limited by shares | Live Commenced dormancy on 16-Feb-2016 |
| Lai Sing Industrial Limited | Private company limited by shares | Live |
| SINWILL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| KEY SING INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| SINOSUN MULTINDUSTRIES LIMITED | Private company limited by shares | Live |
| Chuk Sing Limited | Private company limited by shares | Live |
| HK SINO TRADE IMPORT & EXPORT LIMITED | Private company limited by shares | Live |
| Sino-American Investment Group Limited | Private company limited by shares | Live |
| SINGO ELECTRIC COMPANY LIMITED | Private company limited by shares | Live |
| Sing Sing Culture & Travel in China Limited | Private company limited by shares | Live |
| HON SING STARS INVESTMENT (HK) LIMITED | Private company limited by shares | Live |
| Sino Prosper Capital (Asia) Co., Limited | Private company limited by shares | Live |
| SINOLIANG TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINO-ECHO GROUP LIMITED | Private company limited by shares | Live |
| SINO RESOURCES DEVELOP LIMITED | Private company limited by shares | Live |
| SINO YIELD (ASIA) LIMITED | Private company limited by shares | Dissolved |
| USA NAVI-UNIVERSE SINCO (H.K.) INTERNATIONAL RESEARCH CENTER LIMITED | Private company limited by shares | Live |
| EXCEL SINO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Sinoprox HK Limited | Private company limited by shares | Live |
| SINUS COMPANY LIMITED | Private company limited by shares | Live |
| Sinoparking Holding Limited | Private company limited by shares | Live |
| SINORICH SCM LIMITED | Private company limited by shares | Live |
| SINO KONG BAOFA INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| SINO ROYAL HONG KONG LIMITED | Private company limited by shares | Live Commenced dormancy on 03-Mar-2016 |
| SINO WELL CAPITAL LIMITED | Private company limited by shares | Live |
| SINOSAL SHIPPING LIMITED | Private company limited by shares | Live |
| Sino Gas New Energy Investments Limited | Private company limited by shares | Live |
| SINC-TECH ELECTROMECHANICS TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| SINOTRANS SHIPPING LNG LIMITED | Private company limited by shares | Live |
| POLY SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SHANGHAI SINOTEK TEXTILE & EMBROIDERY COMPANY LIMITED | Private company limited by shares | Live |
| SINPAK TRADE LIMITED | Private company limited by shares | Live |
| SING FAI ELECTRICAL CO. LIMITED | Private company limited by shares | Live |
| SINO SCULPTURE GROUP LIMITED | Private company limited by shares | Live |
| SINZE FINANCE CO., LIMITED | Private company limited by shares | Live |
| SING TUNG INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL ENERGY CONSULTANT (HK) LIMITED | Private company limited by shares | Live |
| SINOHERBEX INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SINNY INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SINOWEST LIMITED | Private company limited by shares | Dissolved |
| SINO-DEVELOP TRADING LIMITED | Private company limited by shares | Live |
| SINLINKS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINOCITI INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOCITI ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO LUCKY (H.K.) LIMITED | Private company limited by shares | Live |
| Sino New Energy Company Limited | Private company limited by shares | Dissolved |
| SINO STAR TRADING GROUP LIMITED | Private company limited by shares | Live |
| SINO SUCCESS MANAGEMENT LIMITED | Private company limited by shares | Live |
| YI SING CHINA LIMITED | Private company limited by shares | Live |
| SINO BEVERAGE GROUP LIMITED | Private company limited by shares | Live |
| LUCKY SINO TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SINO ORGANIC GROUP LIMITED | Private company limited by shares | Live |
| HK LUK SING BIOTECHNOLOGY HOLDING GROUP LIMITED | Private company limited by shares | Live |
| SINOBORG INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO-AMERICAN BELIEF LIMITED | Private company limited by shares | Live |
| SINSENVIDEO LIMITED | Private company limited by shares | Live |
| SINO CINDA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SINO BRIGHT PACIFIC LIMITED | Private company limited by shares | Live |
| SINCEERE (HONGKONG) TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SING WAH (HK) SUPPLY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA SINO (H.K.) LIMITED | Private company limited by shares | Live |
| SINO CENTURY ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO WEALTH ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINO FIRST MANAGEMENT LIMITED | Private company limited by shares | Live |
| SINO CRANE GROUP CO., LIMITED | Private company limited by shares | Live |
| SUN SINO INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOCITY TRADING LIMITED | Private company limited by shares | Live |
| SINO SUCCESS GROUP LIMITED | Private company limited by shares | Live |
| ALLIANCE SINO LIMITED | Private company limited by shares | Dissolved |
| SINCO-CNC LIMITED | Private company limited by shares | Live |
| SINO DRAGON TRADING DEVELOP LIMITED | Private company limited by shares | Live |