| TRISTEN CONCEPT COMPANY LIMITED | Private company limited by shares | Live |
| Tristeps (HK) Trading Co., Limited | Private company limited by shares | Live |
| TRISTON CONSULTING LIMITED | Private company limited by shares | Dissolved |
| TRISTONE LIMITED | Private company limited by shares | Dissolved |
| TRI-STONE LIMITED | Private company limited by shares | Dissolved |
| TRI-STONE MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| TRISTONE RESOURCES LIMITED | Private company limited by shares | Live |
| TRI-STONE TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| TRI-STRONG LIMITED | Private company limited by shares | Dissolved |
| TRI-STRONG INVESTMENT LIMITED | Private company limited by shares | Live |
| TRISTY INVESTMENTS LIMITED | Private company limited by shares | Live |
| TRISTYLE COMPANY LIMITED | Private company limited by shares | Live |
| TRISTYN & VENCHY LIMITED | Private company limited by shares | Live |
| TRISUCCESS LIMITED | Private company limited by shares | Dissolved |
| TRI-SUCCESS LIMITED | Private company limited by shares | Live |
| TRISUGAR LIMITED | Private company limited by shares | Live |
| TRISULA GREATER CHINA LIMITED | Private company limited by shares | Dissolved |
| TRISUM INVESTMENT LIMITED | Private company limited by shares | Live |
| Trisum Trading Limited | | Live |
| TRI-SUN LIMITED | Private company limited by shares | Dissolved |
| TRI-SUN LIMITED | Private company limited by shares | Live |
| TRISUN INTERNATIONAL INVESTMENTS CO., LIMITED | Private company limited by shares | Dissolved |
| TRISUN AIR CONDITIONING SYSTEM LIMITED | Private company limited by shares | Live |
| TRISUN FAR EAST LIMITED | Private company limited by shares | Live |
| TRISUN INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| TRISUN ENTERPRISES LIMITED | Private company limited by shares | Live |
| TRISUN FINANCIAL GROUP HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| Trisun Group Co., Limited | Private company limited by shares | Dissolved |
| TRI-SUN HEALTH PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| HONG KONG TRI-SUN INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| HONG KONG TRISUN INVESTMENT LIMITED | Private company limited by shares | Live |
| TRISUN INTERNATIONAL TRADING ( HONG KONG ) COMPANY LIMITED | Private company limited by shares | Live |
| TRISUN INVESTMENT LIMITED | Private company limited by shares | Live |
| TRISUN INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TRISUN PIPETECH CO., LIMITED | Private company limited by shares | Live |
| TRISUN SPORTS PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| TRISUN PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| TriSun Software Limited | Private company limited by shares | Live |
| TRISUN TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| TRISUN TRADING LIMITED | Private company limited by shares | Live |
| Shenzhen Trisungo Solar Energy Co., Limited | Private company limited by shares | Live |
| TRISUN-LAND LIMITED | Private company limited by shares | Dissolved |
| Tri-Suns Machinery Limited | Private company limited by shares | Live |
| TRI-SUPER MOTORS LIMITED | Private company limited by shares | Dissolved |
| TRISWIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRISYM LIMITED | Private company limited by shares | Dissolved |
| TRI-SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |