| Guangzhou RKS Environmental Protection Science&Technology Co., Limited | Private company limited by shares | Live |
| HERCULES ENGINEERING (CHINA) LIMITED | Private company limited by shares | Live |
| Daria Star Energy Limited | Private company limited by shares | Live |
| EXCELLENT SPLENDID ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ER ZHOU ENERGY LIMITED | Private company limited by shares | Live |
| ENV-TECH HONG KONG LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Jan-2016 |
| Junen Engineering Limited | Private company limited by shares | Live |
| Enjoy Yu Industrial Co., Limited | Private company limited by shares | Live |
| S&R ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| OI WAH ENTERPRISES LIMITED | Private company limited by shares | Live |
| Yat Kin Engineering Company Limited | Private company limited by shares | Live |
| Enrobe Exports Limited | Private company limited by shares | Live |
| TUNG TAT ENVIRONMENTAL LIGHTING EQUIPMENT LIMITED | Private company limited by shares | Live |
| EASY COME CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TECHNIQUES ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Engineering, Trade & Investment Limited | Private company limited by shares | Live |
| ART&STONE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HK BAO RUN ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Live Ceased dormancy on 31-Mar-2016 |
| JIAHENG ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Supply Tech Enterprises Limited | Private company limited by shares | Live |
| LIB ENERGY TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| KONG WING CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Live |
| HONOR EVER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| QUEENTA PRECISION ENGINEERING LIMITED | Private company limited by shares | Live |
| LANTEC ENGINEERING SOLUTIONS CO., LIMITED | Private company limited by shares | Live |
| China Solar Engineering Alliance Limited | Private company limited by shares | Live |
| PRETTY SUN ENGINEERING LIMITED | Private company limited by shares | Live |
| Caribbean General Engineering Company Limited | Private company limited by shares | Live |
| Wahxinping Enterprise Limited | Private company limited by shares | Dissolved |
| DA ENERGY LIMITED | Private company limited by shares | Live |
| Yongxinlong Enterprise Limited | Private company limited by shares | Dissolved |
| ENYA ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| EnviTec Biogas China Limited | Private company limited by shares | Live |
| EntroAuction Limited | Private company limited by shares | Live |
| HUANG HE NEW ENERGY LIMITED | Private company limited by shares | Live |
| YIK CHONG CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| TLP Enterprise Company Limited | Private company limited by shares | Live |
| Newphase Energy Co., Limited | Private company limited by shares | Live |
| BEST CROWN CONSTRUCTION & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GDF Suez Energy Hong Kong Limited | Private company limited by shares | Live |
| SUN KIU ENGINEERING LIMITED | Private company limited by shares | Live |
| MARKMORE ENERGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| United Envirotech (Hong Kong) Company Limited | Private company limited by shares | Live |
| GALAXY ENGINEERING (B.S.) LIMITED | Private company limited by shares | Live |
| Nice Talent Enterprise Limited | Private company limited by shares | Live |
| RAILTEC ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Enusion Technology Limited | Private company limited by shares | Live |
| VPLUS ENERGY CO., LIMITED | Private company limited by shares | Live |
| ORIENT HONGDA ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| HUARON NEW ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| BLAZE ENERGY RESOURCES LIMITED | Private company limited by shares | Live |
| CH Engineering Limited | Private company limited by shares | Live |
| ENARLUX LIGHTING LIMITED | Private company limited by shares | Live |
| Industrial Engineering Limited | Private company limited by shares | Live |
| HUNTSON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Enrich Fortune Pte Limited | Private company limited by shares | Live |
| H Enterprises Limited | Private company limited by shares | Live |
| ELEPHANT ENGINEERING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| B.K. ENGINEERING CONSULTANCY LIMITED | Private company limited by shares | Live |
| China Outstanding Female Entrepreneurs Association Limited | Private company limited by shares | Live |
| Cherry-Apple Energy Group Limited | Private company limited by shares | Live |
| LEGEND PAINTING ART ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| PARAMOUNT ENERGY LIMITED | Private company limited by shares | Live |
| BAK ASIA NEW ENERGY HOLDING LIMITED | Private company limited by shares | Live |
| HANDI ENERGY INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| HK YOSON ENERGY STAR COMPANY LIMITED | Private company limited by shares | Live |
| PMAX Engineering Limited | Private company limited by shares | Live |
| Jupiter Energy Limited | Private company limited by shares | Live |
| ENJOY YOUR SOUP LIMITED | Private company limited by shares | Live |
| SALUD NATURAL ENTREPRENEURS ASIA LIMITED | Private company limited by shares | Live |
| WING WA ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| GERMANY AOMAN ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Honest Air-Con Engineering Limited | Private company limited by shares | Live |
| Best 5 Energy Limited | Private company limited by shares | Live |
| HUSN ENERGY SOLUTIONS CO., LIMITED | Private company limited by shares | Live |
| Skytech Network Engineering Limited | Private company limited by shares | Live |
| HONG KONG WAI YIP INTERNATIONAL ENVIRONMENT INVESTMENT LIMITED | Private company limited by shares | Live |
| YUAN WUI ENGINEERING LIMITED | Private company limited by shares | Live |
| YUAN HING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| P&L METAL SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| MAN SEN ENGINEERING LIMITED | Private company limited by shares | Live |
| HSS Enterprises Limited | Private company limited by shares | Live |
| Cheuk Tat Engineering Limited | Private company limited by shares | Live |
| JOIN WINE ENTERPRISE LIMITED | Private company limited by shares | Live |
| San Yee Engineering Company Limited | Private company limited by shares | Live |
| HONG KONG ENJOY CULTURE COMMUNICATION CO., LIMITED | Private company limited by shares | Live |
| SGS Energy Co., Limited | Private company limited by shares | Live |
| TAI YEON MARBLE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| GoldenLand Energy (Hong Kong) Limited | Private company limited by shares | Live |
| HE'S ENTERPRISE HOLDING LIMITED | Private company limited by shares | Live |
| GRAND GOAL ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| CY ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENDOS INTERNATIONAL HOLDINGS (HK) CO., LIMITED | Private company limited by shares | Live |
| HONG KONG STANDARD ENVIRONMENTAL INVESTMENT CO. LIMITED | Private company limited by shares | Dissolved |
| GRAND ORIENTAL ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| K.E. Engineering Company Limited | Private company limited by shares | Live |
| CLEAN ENERGY LIMITED | Private company limited by shares | Live |
| Vastsources Environmental Limited | Private company limited by shares | Live |
| VISION ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| IWS OK Environmental Recycling Limited | Private company limited by shares | Dissolved |