| Sun Kong Luen Engineering Company Limited | Private company limited by shares | Live |
| LUEN PAK MACHINERY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHI LUEN MACHINERY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG LUEN MACHINERY ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| CHUNG LUEN MACHINERY ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN WAH ENGINEERING AND MAINTENANCE LIMITED | Private company limited by shares | Dissolved |
| LUEN WAN ENGINEERING & TRANSPORTATION MANAGEMENT LIMITED | Private company limited by shares | Live |
| LUEN FAT MARBLE ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| LUEN FAI MARBLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAI LUEN MARBLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HOI LUEN MARINE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN YAU MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN FAT MATERIALS AND ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN TAT MECHANIC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN LUEN METAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN LUEN METAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN WAI METAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SON LUEN METAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHUEN LUEN METAL MACHINERY ENGINEERING LIMITED | Private company limited by shares | Live |
| WING LUEN METAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN MING E&M ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN NGAI ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUEN FAT PAINTING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HIP LUEN (YIP PING) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| LUEN FAT PLASTIC ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUEN TAT REFRIGERATION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WUI LUEN SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUEN ON SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Luen Fat Scaffolding Engineering Limited | Private company limited by shares | Live |
| YAU LUEN SCAFFOLDING FACTORY ENGINEERING LIMITED | Private company limited by shares | Live |
| SHAN LUEN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YAU LUEN ENGINEERING SHARES LIMITED | Private company limited by shares | Dissolved |
| CHI LUEN TECHNOLOGY ENGINEERING LIMITED | Private company limited by shares | Live |
| WAH LUEN TECHNOLOGY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| LUEN MUN PRECISION TECHNOLOGY AND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAI LUEN TELECOMMUNICATION ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN TONE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN CHI ENGINEERING & TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN FAT (ASIA) ENGINEERING & TRADING COMPANY LIMITED | | Live |
| NEW CENTURY LUEN FAT TRADING & ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| LUEN HOP AIR CONDITIONING TRADING & ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN FAT AIR CONDITION (HOLDING) TRADING & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| LUEN WUN TRANSPORT AND ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN LUEN TRANSPORTATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TUNG LUEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TUNG LUEN AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN TUNG AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN WANG ENGINEERING LIMITED | Private company limited by shares | Live |
| Luen Wang E & M Engineering Limited | Private company limited by shares | Live |
| LUEN HING IRON WARE ENGINEERING LIMITED | Private company limited by shares | Live |
| Shui Luen Waterproof Engineering Limited | Private company limited by shares | Dissolved |
| KAM LUEN WATERWORKS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WING LUEN ENGINEERING LIMITED | Private company limited by shares | Live |
| WING LUEN DRAINAGE ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WING LUEN IRON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Luen Wong Engineering Limited | Private company limited by shares | Live |
| LUEN TAI IRON WORK & ENGINEERING LIMITED | Private company limited by shares | Live |
| Yeah Luen Engineering Limited | Private company limited by shares | Live |
| LUEN YING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Luen Ying Engineering Co. Limited | Private company limited by shares | Live |
| LUEN HING YING MING ENGINEERING LIMITED | Private company limited by shares | Live |
| LUEN YING MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ART LUEN METAL ENGRAVING FACTORY LIMITED | Private company limited by shares | Dissolved |
| LUEN SHING ENGRAVING & MOULDING CO., LIMITED | Private company limited by shares | Dissolved |
| CHI LUEN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIU LUEN ENTERPRISE LIMITED | Private company limited by shares | Live |
| HOI LUEN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| KAM LUEN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| LUEN FAT ENTERPRISE LIMITED | Private company limited by shares | Live |
| LUEN FAT CATERING ENTERPRISE LIMITED | Private company limited by shares | Live |
| KONG LUEN WAH HOI (ENTERPRISE) COMPANY LIMITED | Private company limited by shares | Live |
| Kong Luen Enterprise Limited | Private company limited by shares | Dissolved |
| MAI LUEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| KEE LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HOP LUEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUEN HOP ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN LEE ENTERPRISES LIMITED | Private company limited by shares | Live |
| NAN LUEN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YUE LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SAU LUEN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN LUP ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUEN TAK FAT ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN HOP FAT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PUN LUEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| KIU LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN KIN KAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN WO BIU KEE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN WAH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN WIN SUN ENTERPRISES LIMITED | Private company limited by shares | Live |
| PUI LUEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUEN AH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ON TAK LUEN HOP ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUN LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHI LUEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUEN TAI ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SUN LUEN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| LUEN YAT ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| LUEN SUN ENTERPRISES LIMITED | Private company limited by shares | Live |
| WAI LUEN ENTERPRISES LIMITED | Private company limited by shares | Live |