| SINO-I TECHNOLOGY LIMITED | Public company limited by shares | Live |
| SINO-I.COM LIMITED | Private company limited by shares | Dissolved |
| SINO-I.COM (BEIJING) LIMITED | Private company limited by shares | Dissolved |
| SINO-I.COM (SHANGHAI) LIMITED | Private company limited by shares | Live |
| SINO-IDEAL LIMITED | Private company limited by shares | Dissolved |
| SINO-IDEAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINOIDEAS LIMITED | Private company limited by shares | Live |
| SINOIF TRADING LIMITED | Private company limited by shares | Live |
| SINOIL CO. LIMITED | Private company limited by shares | Dissolved |
| SINOIL ASIA LIMITED | Private company limited by shares | Dissolved |
| SINOIL ENERGY LIMITED | Private company limited by shares | Live |
| SINOIL PETROLEUM EQUIPMENT LIMITED | Private company limited by shares | Live |
| HONGKONG SINOIL CO., LIMITED | Private company limited by shares | Live |
| CHINA SINO-IMC INTERNATIONAL INVEST HOLDING LIMITED | Private company limited by shares | Live |
| SINOIMEX GROUP (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SINO-IN LIMITED | Private company limited by shares | Dissolved |
| Sinoinc International Limited | Private company limited by shares | Live |
| SINOINCO LIMITED | Private company limited by shares | Live |
| SINO-INDIA LINES LIMITED | Private company limited by shares | Live |
| SINOINDIAN HK LIMITED | Private company limited by shares | Dissolved |
| SINOINDL COMPANY LIMITED | Private company limited by shares | Live |
| SINO-INDO-AMERICAN SPINNERS LIMITED | Private company limited by shares | Dissolved |
| SINO-INDONESIA INVESTMENT CONSULTANTS LIMITED | Private company limited by shares | Live |
| SINO-INDONESIA INTERNATIONAL INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| SINOINFO TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Sinoini Innovation Hitech Co., Limited | Private company limited by shares | Live |
| SINO-INN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINO-INNO SMART CO., LIMITED | | Live |
| SINOINSTR TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SINOINSTRUMENT ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| SINOINTURE CORPORATION (HONGKONG) LIMITED | Private company limited by shares | Live |
| SINOINVEST LIMITED | Private company limited by shares | Dissolved |
| Sinoinvest Holding Co., Limited | Private company limited by shares | Live |
| SINOINVEST (HK) GROUP LIMITED | Private company limited by shares | Live |
| SINOINVEST HOLDINGS LIMITED | Private company limited by shares | Live |
| PK Sino-Invest & Trading Co. Limited | Private company limited by shares | Live |
| SINO-INVEST.COM LIMITED | Private company limited by shares | Dissolved |
| SINO-INVESTMENT PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| SINO-IRAN LIMITED | Private company limited by shares | Dissolved |
| Sino-Irish Education Association Limited | | Live |
| SINO-ISLAND AGENCIES LIMITED | Private company limited by shares | Dissolved |
| SINO-ITALIAN COSMETICS EXCHANGE ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |