| LONG KE XIN ENVIRONMENTAL INVESTMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SHAN HO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CARPARK SOLUTION ENTERPRISE LIMITED | Private company limited by shares | Live |
| CHUEN KEE ENGINEERING WORK LIMITED | Private company limited by shares | Dissolved |
| UNITED ENGINEERING LIMITED | Private company limited by shares | Live |
| JHEN VEI ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| EXL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ON TAT SCAFFOLDING & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MAXFUL ENGINEERING LIMITED | Private company limited by shares | Live |
| VPOWER ENGINEERING (CHINA) LIMITED | Private company limited by shares | Live |
| GOLD RIVER ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRO LINK INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SKY REGENT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ONJET CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| GLOBALINK CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| NEW TECH ENGINEERING (ASIA) LIMITED | Private company limited by shares | Dissolved |
| LAI MING CONTAINER ENGINEERING LIMITED | Private company limited by shares | Live |
| HONG KONG HOLLYWOOD CAFE & ENTERTAINMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAI SHIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHAN YIU PIPEWORKS ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| GREATER CHINA MINERALS & ENERGY LIMITED | Private company limited by shares | Dissolved |
| TAI LEE MACHINERY ENGINEERING LIMITED | Private company limited by shares | Live |
| HOP LEE ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND BRILLIANCE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHASE MACHINERY ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| SUN HOI WAH ENTERPRISES CO. LIMITED | Private company limited by shares | Dissolved |
| SIGN-TECH ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Victor Enterprises Limited | Private company limited by shares | Live |
| HOLDER ENGINEERING AND SUPPLY LIMITED | Private company limited by shares | Dissolved |
| HOP HING CLEANING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL FARMS LIMITED | Private company limited by shares | Dissolved |
| ACEWELL ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| IWS ENVIRONMENTAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| GRAND SMART ENTERPRISE LIMITED | Private company limited by shares | Live |
| EXTREME ENGINEERING LIMITED | Private company limited by shares | Live |
| BEST CREATIVE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHI KEUNG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| TAK GRAND ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAKMEI ENGINEERING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HANG SENG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TRINITY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WING SHUEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CARTELLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ON KEE ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| NICE RICH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HOI KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TRICON ENERGY (CHINA) LIMITED | Private company limited by shares | Live |
| PACIFIC TEAM ENTERPRISES LIMITED | Private company limited by shares | Live |
| LEE YU KEE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL EXPERTS CHINA GROUP LIMITED | Private company limited by shares | Live |
| ADVANCED ENVIROTECH (CHINA) LIMITED | Private company limited by shares | Dissolved |
| PROTECH MACHINERY & ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TALENT RICH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EAST OCEAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENTRE LIMITED | Private company limited by shares | Live |
| SIK WAH ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WING WANG ENGINEERING LIMITED | Private company limited by shares | Live |
| JETTS ENGINEERING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| CHINA BASE ENGINEERING LIMITED | Private company limited by shares | Live |
| HANG DA ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND PARKSON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YIP KEE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| UNIFAITH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MAN PO ENVIRONMENT TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| KOO KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| FAR EAST ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN CHI LEE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MINGTIN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| KEY ENVIRONMENTALS LIMITED | Private company limited by shares | Dissolved |
| CAPITAL LEGEND ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TAO KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHARMING PRODUCTS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EVER LEGEND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FULL CAPITAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| REVIVO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LUBIN ENVIRONMENTAL PROTECTION EQUIPMENT (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| EBO E & M ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN FAI CONSTRUCTION ENGINEERING ENTERPRISE LIMITED | Private company limited by shares | Live |
| KLEAN-TECH ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| YUEN TAT ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FU PUI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| KAM MING STRUCTURE (CONSOLIDATION) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HUNGSON ENTERPRISE LIMITED | Private company limited by shares | Live |
| NEWIN SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EVERBRIGHT CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LEGO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FARENE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENLIGHT LIMITED | Private company limited by shares | Dissolved |
| TH ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHI FU CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| YOKE ENGINEERING & CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| DRAGON WINNER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KAI PANG CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HIP WING AIR CONDITION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TEAM HARVEST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LONG TEAM ENGINEERING LIMITED | Private company limited by shares | Live |
| KEY SKY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOY HONEST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOOD SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |