| Sing Yu Design & Engineering Co. Limited | Private company limited by shares | Live |
| WING SINO INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| SINOWAY CHESTER LIMITED | Private company limited by shares | Live |
| Sing Mei Engineering Limited | Private company limited by shares | Live |
| Sing Yu International Limited | Private company limited by shares | Live |
| SINO WELL 88 LIMITED | Private company limited by shares | Live |
| SINO SKYFORD LIMITED | Private company limited by shares | Live |
| Sino Developer (Hong Kong) Limited | Private company limited by shares | Live |
| SINO WELLNESS LIMITED | Private company limited by shares | Live |
| SINONUT COMPANY LIMITED | Private company limited by shares | Live |
| WAH SING FAI TRADING CO., LIMITED | Private company limited by shares | Live |
| HongKong Sintek Electronic Co., Limited | Private company limited by shares | Live |
| Sinotex Limited | Private company limited by shares | Live |
| Sing Tung Industrial Limited | Private company limited by shares | Live |
| SINO BRIGHT SUNNY LIMITED | Private company limited by shares | Live |
| FITAL SINO LIMITED | Private company limited by shares | Live |
| SINO INTERNATIONAL COOPERATION LIMITED | Private company limited by shares | Live |
| SINO WEALTH INC. LIMITED | Private company limited by shares | Live |
| Hin Yeung Sing (HK) Limited | Private company limited by shares | Live |
| SINROC LIMITED | Private company limited by shares | Live |
| Sing Cube Company Limited | Private company limited by shares | Live |
| SINO BRIGHT TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| PROSPER SINO TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| SINO DRAGON TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| LIHK SING INNOVATION LIMITED | Private company limited by shares | Live |
| SINO MARITIME GROUP LIMITED | Private company limited by shares | Live |
| SINGAPORE KIM TAE LIMITED | Private company limited by shares | Live |
| Sino Renewable Energy Industrial Company Limited | Private company limited by shares | Live |
| SINO BRIGHT 88 LIMITED | Private company limited by shares | Live |
| SINO YIELD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO YORK INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Sinco Manufacturing Limited | Private company limited by shares | Live Commenced dormancy on 21-Sep-2018 |
| KWAN SING ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| SINO SMART INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| SINO MINING HOLDING GROUP PTY LIMITED | Private company limited by shares | Live |
| SINO VIRTUE INVESTMENT MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| SMART SINO INC LIMITED | Private company limited by shares | Live |
| SINO CHARM CORPORATE LIMITED | Private company limited by shares | Live |
| SINO TECH GROUP HONGKONG LIMITED | Private company limited by shares | Live |
| Sino Brother International Limited | Private company limited by shares | Live |
| Singto Technology (HK) Co., Limited | Private company limited by shares | Live |
| SINOSTAR TRADE LIMITED | Private company limited by shares | Live |
| HK SING JYUN LIMITED | Private company limited by shares | Live |
| Sing San Trading Limited | Private company limited by shares | Live |
| Sing Woon Limited | Private company limited by shares | Live |
| Yuen Sing Construction Limited | Private company limited by shares | Live |
| Sinowatt Dongguan Limited | Private company limited by shares | Live |
| Sino West Limited | Private company limited by shares | Live |
| BO SING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| WAN SING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SING KWAN MANPOWER LIMITED | Private company limited by shares | Live |
| SINWA TRADING LIMITED | Private company limited by shares | Live |
| BRAND SINO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINO GROUP LIMITED | Private company limited by shares | Live |
| Sinocap Cultural Tourism Consultancy Limited | Private company limited by shares | Live |
| Sinocap Cultural Tourism Design Limited | Private company limited by shares | Live |
| SING HO TRADING CO., LIMITED | Private company limited by shares | Live |
| SINDO INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| HK SING KEI INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SINGHWA TRADING (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO-SPLENDOR TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Sing Yuet Construction Engineering Limited | Private company limited by shares | Live |
| Sintronic E&M Engineering Limited | Private company limited by shares | Live |
| SINCERE HONEST EMPLOYMENT CENTRE LIMITED | Private company limited by shares | Live |
| SINCERELY YOURS TECHNO POINT LIMITED | Private company limited by shares | Live |
| SING WIN TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| LONG SING TRADING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HING SING TRADING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SING MING SECURITY SERVICE CO LIMITED | Private company limited by shares | Live |
| YUE SING ASIA HK LIMITED | Private company limited by shares | Live |
| SINOTEK CROSS LIMITED | Private company limited by shares | Live |
| SINO MARK INC LIMITED | Private company limited by shares | Live |
| Full Sing PE International Limited | Private company limited by shares | Live |
| SINO TRANS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINFON TECHNOLOGY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SINO CITY TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| Sino US Entrepreneurship Group Limited | Private company limited by shares | Live |
| SINO RICH CREATION GROUP LIMITED | Private company limited by shares | Live |
| SINO SHARP CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| Wang Sing Engineering Company Limited | Private company limited by shares | Dissolved |
| TIN LEI BOU SING LIMITED | Private company limited by shares | Live |
| Kam Sing Engineering Limited | Private company limited by shares | Live |
| SINO STAPLE CO., LIMITED | Private company limited by shares | Live |
| Yeu Sing Construction Consultancy Limited | Private company limited by shares | Live |
| GROWTH SING INVESTMENT LIMITED | Private company limited by shares | Live |
| Man Sing Engineering HK Limited | Private company limited by shares | Live |
| SUPERB SINO LIMITED | Private company limited by shares | Live |
| Sing Kan Investment Limited | Private company limited by shares | Live |
| SINOTONE LIMITED | Private company limited by shares | Live |
| NEW SING (HONG KONG) ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO RESOURCE BUSINESS SERVICE LIMITED | Private company limited by shares | Live |
| Sino Innovation Fair Limited | Private company limited by shares | Live |
| Sino Science Fair Limited | Private company limited by shares | Live |
| Sino STEM Fair Limited | Private company limited by shares | Live |
| Sino STEAM Fair Limited | Private company limited by shares | Live |
| MAN SING INVESTMENT LIMITED | Private company limited by shares | Live |
| Sing Sing Trading Limited | Private company limited by shares | Live |
| Lin Sing Enterprise Limited | Private company limited by shares | Live |
| Jo Sing Limited | Private company limited by shares | Live |
| Sino-Nigeria Shipping Limited | Private company limited by shares | Live |