| SINO HOPE TRADING (HK) LIMITED | Private company limited by shares | Live |
| Sino Handel Group Company Limited | Private company limited by shares | Dissolved |
| Sino Unilink Technology (HK) Limited | Private company limited by shares | Dissolved |
| Sino Inn Limited | Private company limited by shares | Live |
| SINOWEST EDUCATIONAL SUPPORT CO., LIMITED | Private company limited by shares | Dissolved |
| PO SING CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO WAVE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINCERE HK INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CAPITAL SINO LIMITED | Private company limited by shares | Live |
| LEGEND SINCERE LIMITED | Private company limited by shares | Live |
| SINAXIA INVESTMENTS LIMITED | Private company limited by shares | Live |
| HK SINCERE STAR LIMITED | Private company limited by shares | Dissolved |
| HONG KONG KIN SING EVER GROUP LIMITED | Private company limited by shares | Dissolved |
| SINO EXISTENCE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Sino Hi-Tech Industry Co., Limited | Private company limited by shares | Live |
| SINOTEC INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Live |
| SINO CULTURE LIMITED | Private company limited by shares | Live |
| SINO FAME ENTERPRISE LIMITED | Private company limited by shares | Live |
| SINO WEALTHY CORPORATION LIMITED | Private company limited by shares | Live |
| SINO JOINTER LIMITED | Private company limited by shares | Dissolved |
| Sino Heritage Limited | Private company limited by shares | Live |
| SINO PACIFIC INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINOTEK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO KAY INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA SINOPEC VALVE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO RISING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Singlelife-DS.(H.K.) Limited | Private company limited by shares | Dissolved |
| SINO IMMIGRATION CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| ALLIED SINO LIMITED | Private company limited by shares | Live |
| SINO FAME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINO WISDOM CORPORATION LIMITED | Private company limited by shares | Live |
| SINO FASHION CO., LIMITED | Private company limited by shares | Live |
| PAK SI SING LIMITED | Private company limited by shares | Dissolved |
| WAH SING JEWELLERY CO. LIMITED | Private company limited by shares | Live |
| SINO-POWER (H.K.) INT'L INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINOVEN INVESTMENT LIMITED | Private company limited by shares | Live |
| SINOMAG LIMITED | Private company limited by shares | Live |
| SINO CENTURY (ASIA) LIMITED | Private company limited by shares | Live |
| SINO OASIS INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINO-QUIP LIMITED | Private company limited by shares | Live |
| SINAWEI TRADE CO. LIMITED | Private company limited by shares | Live |
| SINOLINK GLOBAL CONSULTANTS LIMITED | Private company limited by shares | Live |
| SinoAztec Trading Limited | Private company limited by shares | Live |
| SINO WINNER (ASIA) LIMITED | Private company limited by shares | Live |
| SINO POWER CONSTRUCTION GROUP LIMITED | Private company limited by shares | Live |
| SINO FRENCH RESOURCES CORPORATION LIMITED | Private company limited by shares | Live |
| SINO FUSHENG INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| FU SING BANQUET MANAGEMENT LIMITED | Private company limited by shares | Live |
| WANG SING TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| SINO ASIA TRAVEL LIMITED | Private company limited by shares | Live |
| KUNG SING INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Live |
| SINOCORP GLOBAL LIMITED | Private company limited by shares | Live |
| SINO YORK INVESTMENT LIMITED | Private company limited by shares | Live |
| GRAND SINCERE LIMITED | Private company limited by shares | Live |
| SUN SING HONG LIMITED | Private company limited by shares | Live |
| CHINA SINOTRANS INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SINO GAIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SING MAN 3D PRINTING LIMITED | Private company limited by shares | Dissolved |
| SING FO INTERNATIONAL (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SINO TIFFANY GROUP LIMITED | Private company limited by shares | Live |
| SINYE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| NEW SINO CREATION INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| SINO FAR EAST MARINE CO., LIMITED | Private company limited by shares | Live |
| Sing Hong Biotech (HK) Limited | Private company limited by shares | Dissolved |
| HONG KONG SINO DRAGON TRADING LIMITED | Private company limited by shares | Live |
| SINO TECH (CHINA) LIMITED | Private company limited by shares | Live |
| SINO OCEAN INC. LIMITED | Private company limited by shares | Live |
| SINO DYNAMIC (ASIA) LIMITED | Private company limited by shares | Dissolved |
| SINO BASIC CHEMICALS (HK) CO., LIMITED | Private company limited by shares | Live |
| SINOSTAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Super Sino Group Limited | Private company limited by shares | Dissolved |
| SINO SMART INDUSTRIAL LIMITED | Private company limited by shares | Live |
| GOLD SING (HK) PROPERTY LIMITED | Private company limited by shares | Live |
| SINO CONNECTION INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| SINMAYA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SING YU GROUP LIMITED | Private company limited by shares | Live |
| SINOFILM GROUP LIMITED | Private company limited by shares | Live |
| SINOCEAN INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Live |
| SINO TYCOON GROUP LIMITED | Private company limited by shares | Live |
| SPEED SINO LIMITED | Private company limited by shares | Live |
| SINO ENERGY GROUP LIMITED | Private company limited by shares | Live |
| SINO OPTIC COMMUNICATION LIMITED | Private company limited by shares | Live |
| ZHE JIANG SINGING SNOW KNITTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sinnovations International Limited | Private company limited by shares | Live |
| SINOMARINE SHIPPING CO., LIMITED | Private company limited by shares | Live |
| HONG KONG SINO LUCK SHIPPING LIMITED | Private company limited by shares | Live |
| Sino-Europe (HongKong) Group Limited | Private company limited by shares | Live |
| SINO INFRASTRUCTURE INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| SINOPLUS HONG KONG LIMITED | Private company limited by shares | Live |
| SINEX SOLUTIONS LIMITED | Private company limited by shares | Live |
| Sino Integrity International Limited | Private company limited by shares | Live |
| SINO MEGA (HK) GROUP LIMITED | Private company limited by shares | Live |
| Sino Mining Cross Border Solutions Limited | Private company limited by shares | Dissolved |
| Sino-plus Business Consulting Limited | Private company limited by shares | Live |
| HANG SING INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| Sino Material Technologies Limited | Private company limited by shares | Live |
| Sino Paper Limited | Private company limited by shares | Live |
| SINO GLOBAL ON LINE CO., LIMITED | Private company limited by shares | Live |
| EXCEL SINO CHINA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HOI SING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |