| Sini Limited | Private company limited by shares | Live |
| SINIAN ENTERPRISE CO., LIMITED | | Live |
| HK SINIAN ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| SINIAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINIAN REALTY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINIAN SHIPPING COMPANY LIMITED | | Live |
| SINICA LIMITED | Private company limited by shares | Dissolved |
| PAX SINICA (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| SINICA SOLUTION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| SINICA INTERNATIONAL CORP., LIMITED | Private company limited by shares | Live |
| SINICA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SINICA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SINICA INVESTMENTS LIMITED | Private company limited by shares | Live |
| SINICA NATURA LIMITED | Private company limited by shares | Dissolved |
| PAX SINICA PUBLISHING LIMITED | Private company limited by shares | Live |
| Sinica Technology Limited | Private company limited by shares | Live |
| Pax Sinica Technology Limited | | Live |
| Sinicmed Group Co., Limited | Private company limited by shares | Live |
| SINICON COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINICON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SINICONE LIMITED | Private company limited by shares | Live |
| SINICTRANS GLOBAL CO LIMITED | Private company limited by shares | Live |
| SINICVISION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONG KONG SINIDA INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| HONGKONG SINIER INTERNATIONAL BEAUTY INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| TAIWAN SINIER GROUP LIMITED | Private company limited by shares | Dissolved |
| SINIGALIA COMPANY LIMITED | Private company limited by shares | Live |
| SINIKA ELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Live |
| SINIKI GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINIKI INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SINIKKA COMPANY LIMITED | Private company limited by shares | Live |
| SINIMPEX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Shiva Sinindo Film Limited | Private company limited by shares | Live |
| SINING INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Sinirehk Limited | Private company limited by shares | Live |
| Sinirio Design International Limited | Private company limited by shares | Live |
| SINIS LIMITED | Private company limited by shares | Dissolved |
| SINISTRAL MARINE LIMITED | Private company limited by shares | Dissolved |
| SINISTRO LIMITED | Private company limited by shares | Dissolved |
| SINIT HOLDINGS LIMITED | Private company limited by shares | Live |
| SINITALIA Aviation Technology Limited | | Live |
| SINITEX (HONG KONG) LIMITED | Private company limited by shares | Live |
| Sinitic Limited | Private company limited by shares | Live |
| SINITRA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SINITRON LIMITED | Private company limited by shares | Dissolved |
| SINIX ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |