| GREATWALL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HING FAI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| S & B ENTERPRISES LIMITED | Private company limited by shares | Live |
| SUNSHENG ENVIRONMENTAL TECHNOLOGY GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| COSTEFECT ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERO LIMITED | Private company limited by shares | Dissolved |
| GAI SHENG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| UNITEX ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| EXCEL CREATIVE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CREATOR ENTERPRISES LIMITED | Private company limited by shares | Live |
| WING TAT ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| OCEAN ENERGY LIMITED | Private company limited by shares | Live |
| TEAMWELL ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| AGS ENTERPRISE LIMITED | Private company limited by shares | Live |
| MEGA ENERGY LIMITED | Private company limited by shares | Live |
| NANHAI ENGINEERING RESOURCES COMPANY LIMITED | Private company limited by shares | Live |
| CHIU YUE ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI YIP ELECTRICAL MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| MB ECO ENERGY LIMITED | Private company limited by shares | Live |
| ENGLAND ROYAL CROWN LAORENTOU INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| ENHANCE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KASEMAN ENVIRONMENTAL SYSTEMS (HK) LIMITED | Private company limited by shares | Dissolved |
| OWEN (HONG KONG) ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| GLOBAL LINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PO WING ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TIN MAY ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| OMA ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENNIC INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TSUEN LIK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GLOBAL STAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAH TAO CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIU NAM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MIX PRO (E & M) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CLASSIC ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| HUA YI ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TECHNIQUE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TRU-TIGHT CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| GLORRY ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| HOP LEE SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| K & K ENTERPRISE LIMITED | Private company limited by shares | Live |
| EN ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| AECL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAWIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| RHINO ENERGY LIMITED | Private company limited by shares | Dissolved |
| TAI SUN ENTERPRISES LIMITED | Private company limited by shares | Live |
| WAI LEE CATERING ENGINEERING LIMITED | Private company limited by shares | Live |
| FU LAI ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| KAM HING CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WELL PRODUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ZAKKA ENTERPRISE LIMITED | Private company limited by shares | Live |
| CHINA ENERGY RESOURCES INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHONG PUI ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| VICTORIA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAY TAI ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KA LI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NOVEL TECH ENVIRO LIMITED | Private company limited by shares | Live |
| E-NETSUPPORT BUSINESS SOLUTIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISER ENTERPRISE LIMITED | Private company limited by shares | Live |
| GOOD CHANNEL ENGINEERING LIMITED | Private company limited by shares | Live |
| YAN KEI ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| JOY GAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HIU XIG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SWIFT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| RISE POWER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCKTOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| OCEAN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| LUCKY TOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CENTURY TEAM ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUCK HERO ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| PROFICIENT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHINA LUCK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TOP ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHINA WEALTHY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MATECH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CONCORD ENERGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HOP LEE W&E ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YAU BOND ENGINEERING LIMITED | Private company limited by shares | Live |
| CHINA STANDARD ENGINEERING LIMITED | Private company limited by shares | Live |
| FRANCE OLD MAN DRESS ENTERPRISE DEV. LIMITED | Private company limited by shares | Dissolved |
| ALLIED ENVIROTECH LIMITED | Private company limited by shares | Live |
| NAMKWANG ENGINEERING & CONSTRUCTION HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SKY LEADER ENGINEERING LIMITED | Private company limited by shares | Live |
| MATRIX CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD LEGEND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KODA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FULLUCK CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FINE DRAGON CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FINE TEAM CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LF ENGINEERING LIMITED | Private company limited by shares | Live |
| MENWELL ENTERPRISES LIMITED | Private company limited by shares | Live |
| EVER WEALTHY ENGINEERING LIMITED | Private company limited by shares | Live |
| FAT KEE ENVIRONMENTAL RECYCLING COMPANY LIMITED | Private company limited by shares | Live |
| NEW SENSE MACHINERY & ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY CONSERVATION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING ON CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| POWELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA ENGINEERING SYSTEMS LIMITED | Private company limited by shares | Live |
| H&C ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| KEEHILL ENTERPRISE LIMITED | Private company limited by shares | Live |
| FAME OCEAN ENTERPRISE LIMITED | Private company limited by shares | Live |