| SINE, LIMITED | Private company limited by shares | Dissolved |
| Sine Qua Non Limited | Private company limited by shares | Live |
| SINE ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| SINE NETWORKS E-COMMERCE LIMITED | | Live |
| LI SINE PLASTIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sine Wave Studio Limited | | Live |
| SINE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sine Software Technology Limited | Private company limited by shares | Live |
| SINE TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SINEA INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| SINEA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINEAR LIMITED | Private company limited by shares | Dissolved |
| Sineco Limited | Private company limited by shares | Live |
| SINECURE LIMITED | Private company limited by shares | Dissolved |
| SINEFROFIT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SineGlobal Resources Limited | Private company limited by shares | Live |
| SINEGY (HK) LIMITED | Private company limited by shares | Live |
| SINEI INDUSTRIAL (HK) LIMITED | Private company limited by shares | Live |
| SINEIDE TRADE CO., LIMITED | Private company limited by shares | Live |
| SINEK COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINELEC LIMITED | Private company limited by shares | Dissolved |
| SINEMA LIMITED | Private company limited by shares | Dissolved |
| SINEN LIMITED | Private company limited by shares | Dissolved |
| SINENG ASIA SHIPPING CO., LIMITED | Private company limited by shares | Live |
| SINENG ELECTRIC HK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SINENG LUBRICANTS LIMITED | Private company limited by shares | Live |
| Sinensis Company Limited | Private company limited by shares | Live |
| Sineo Limited | Private company limited by shares | Dissolved |
| QUANZHOU SINEPOWER ELECTRIC CO., LIMITED | Private company limited by shares | Live |
| SINEQUANON (CONSULTING) LIMITED | Private company limited by shares | Live |
| SINEQUANON HONG KONG LIMITED | Private company limited by shares | Live |
| SINERGIA LIMITED | Private company limited by shares | Live |
| SINERGY LIMITED | Private company limited by shares | Dissolved |
| SINERGY LIMITED | Private company limited by shares | Live |
| Sinergy China Co. Limited | Private company limited by shares | Live |
| Sinergy Industrial Group Co., Limited | Private company limited by shares | Live |
| SINERGY CORPORATION LIMITED | Private company limited by shares | Live |
| Sinergy Engineering Technology Company Limited | Private company limited by shares | Live |
| Sinergy Group Limited | | Live |
| Sinergy South Asia Investment Group Limited | Private company limited by shares | Live |
| SINERGY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Sinergy International Trading Company Limited | Private company limited by shares | Live |
| SINERTCH INTERNATIONAL (HK) CO LIMITED | Private company limited by shares | Live |
| SINERY LIMITED | Private company limited by shares | Dissolved |
| SINERY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINERY ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINERY INVESTMENT LIMITED | Private company limited by shares | Live |
| SINEST CHAIN STORE (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| SINEST INTERNATIONAL INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| SINETECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINEUCOM LIMITED | Private company limited by shares | Live |
| Sineurex Limited | Private company limited by shares | Live |
| SinEuSyn Limited | Private company limited by shares | Live |
| SINEUTRON LIMITED | Private company limited by shares | Dissolved |
| Sineva Trade Limited | | Live |
| Sineve Company Limited | Private company limited by shares | Live |
| SINEVER INTEMATIONAL TRADE LIMITED | | Live |
| Sinevo Resources Holdings Limited | Private company limited by shares | Dissolved |
| HAILIAN SINEWS LIMITED | Private company limited by shares | Live |
| SINEWY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINEX LIMITED | Private company limited by shares | Dissolved |
| Sinex Co., Limited | Private company limited by shares | Live |
| SINEX DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SINEX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINEX INDUSTRIES LIMITED | Private company limited by shares | Live |
| SINEX INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINEX INVESTMENT LIMITED | | Live |
| SINEX SOLUTIONS LIMITED | Private company limited by shares | Live |
| SINEX Trading Limited | Private company limited by shares | Live |
| Sinex Trading HK Company Limited | Private company limited by shares | Live |
| Sinexa (HK) Limited | Private company limited by shares | Live |
| SINEXIS LIMITED | Private company limited by shares | Dissolved |
| SINEY NOMINEE LIMITED | Private company limited by shares | Live |