| PQ (GERMANY) ENGINE CO., LIMITED | Private company limited by shares | Live |
| MODUS OPERANDI ENERGY INC. LIMITED | Private company limited by shares | Live |
| Power Creation Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| Hao Zhou Engineering Limited | Private company limited by shares | Live |
| G&M ENTERPRISE LIMITED | Private company limited by shares | Live |
| FIRSD ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENOCH CONSULTANTS (HK) LIMITED | Private company limited by shares | Live |
| Yongrui Water-Proof Construction Engineering Co. Limited | Private company limited by shares | Live |
| Global Engineering Concepts Limited | Private company limited by shares | Live |
| A1 ENGINEERING AND CONSULTANCY COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG ENOCH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Wersi Engineering Machinery Limited | Private company limited by shares | Live |
| DILIGENT (HONG KONG) ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| LEETON ENERGY CO., LIMITED | Private company limited by shares | Live |
| HENAN XINFEI SOLAR ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HUA JIN ENERGY GROUP LIMITED | Private company limited by shares | Live |
| General Eco Energy Co., Limited | Private company limited by shares | Live |
| Lotus-Wisdom Environmental Company Limited | Private company limited by shares | Live |
| Tung Hoi Engineering Limited | Private company limited by shares | Live |
| ENERGY ELITE LIMITED | Private company limited by shares | Live |
| GOOD ENVIRONMENTAL BUSINESS LIMITED | Private company limited by shares | Live |
| GLORIOUS OCEAN ADVERTISING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENNOVA LIMITED | Private company limited by shares | Live |
| BEST GLORY ENGINEERING LIMITED | Private company limited by shares | Live |
| Entersys Capital Limited | Private company limited by shares | Live |
| POWERWINGS ENERGY HONG KONG LIMITED | Private company limited by shares | Live |
| TIM TAT MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TIM TAK WAN ENGINEERING LIMITED | Private company limited by shares | Live |
| Earth-Tech Environmental Investment Limited | Private company limited by shares | Live |
| KAM LEE (SANDWICH PANEL) ENGINEERING LIMITED | Private company limited by shares | Live |
| NAM KWUN ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| PETRO ENERGY HOLDING LIMITED | Private company limited by shares | Live |
| CTK Engineering Company Limited | Private company limited by shares | Live |
| ORIGINAL DESIGN & ENGINEERING LIMITED | Private company limited by shares | Live |
| Omnico Engineering Limited | Private company limited by shares | Live |
| ZHONGKE ENVIRONMENTAL RECYCLING LIMITED | Private company limited by shares | Live |
| YINCLUN ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| HOP LEE ENGINEERING (CONSTRUCTION) COMPANY LIMITED | Private company limited by shares | Live |
| Cheuk Ngai Engineering Limited | Private company limited by shares | Live |
| FIRST ENGINEERING LIMITED | Private company limited by shares | Live |
| HONOURABLE ENGINEERING LIMITED | Private company limited by shares | Live |
| RH-PEC ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Wing On Construction & Engineering Company Limited | Private company limited by shares | Live |
| HK ENCHANTMENT CARD CO., LIMITED | Private company limited by shares | Live |
| Bio-Medical Engineering (UK) Limited | Private company limited by shares | Live |
| KINGLINE ENTERPRISES LIMITED | Private company limited by shares | Live |
| CAPA ENVIRONMENT TRADING LIMITED | Private company limited by shares | Live |
| PRINCE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| POWERWELL ENERGY CO., LIMITED | Private company limited by shares | Live |
| HONGKONG ENHUA INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Grandeur Environmental Protection Co., Limited | Private company limited by shares | Dissolved |
| RUI XIN AIR CONDITION & ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| HK SEER ENVIRONMENT PROTECTION MATERIAL CO., LIMITED | Private company limited by shares | Live |
| Global Enjoyment Clothing Limited | Private company limited by shares | Live |
| Reox Design & Engineering Limited | Private company limited by shares | Live |
| H.B.H Energy Holding Group Limited | Private company limited by shares | Live |
| United Sinoaeridge Itasol Engine Limited | Private company limited by shares | Live |
| Zhonghuang Energy Reserve Co., Limited | Private company limited by shares | Live |
| ENEZ VAZ Limited | Private company limited by shares | Live |
| MR WATERPROOF ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Aberdeen Energy & Resources Limited | Private company limited by shares | Live |
| USA English Limited | Private company limited by shares | Live |
| ENTANTI LIMITED | Private company limited by shares | Live |
| Yiu Leung Scaffolding Engineering Limited | Private company limited by shares | Live |
| Sun Moon Engineering Company Limited | Private company limited by shares | Live |
| CHI NGAI E & M ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| LUMINANCE UNITED ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| Chinese Entrepreneurs Collection Association Limited | Company limited by guarantee | Live |
| HONGKONG TAIQUAN ENVIRONMENT LIMITED | Private company limited by shares | Live |
| PRO-S ENGINEERING LIMITED | Private company limited by shares | Live |
| WAH HING CONSTRACTION ENGINEERING LIMITED | Private company limited by shares | Live |
| UJAAS ENERGY HK LIMITED | Private company limited by shares | Live |
| ViA Entertainment Limited | Private company limited by shares | Live |
| HUA FAI ENGINEERING & TRANSPORTATION LIMITED | Private company limited by shares | Live |
| EnviroTech (International) Limited | Private company limited by shares | Live |
| ACHIEVE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TSINGHUA ENTREPRENEURS ASSOCIATION LIMITED | Private company limited by shares | Live |
| ASIA ENVIRONTECH ENGINEERING LIMITED | Private company limited by shares | Live |
| HONGKONG (GUANGZHOU) HOL ENGINE FITTINGS CO., LIMITED | Private company limited by shares | Live |
| E-MAGINER ENGINEERING LIMITED | Private company limited by shares | Live |
| PURE ENERGY SPACE LIMITED | Private company limited by shares | Live |
| STAGE ENTERPRISES LIMITED | Private company limited by shares | Live |
| WING HANG ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| ENESCO FRANCE LIMITED | Private company limited by shares | Live |
| CHINA ENTREPRENEURS INVESTMENT AND FINANCING ASSOCIATION LIMITED | Private company limited by shares | Live |
| Sun Sky Enterprises Limited | Private company limited by shares | Live |
| TL ENTERPRISE HK LIMITED | Private company limited by shares | Live |
| CHAN WAH CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HOP FUNG ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ENKONN COMPANY LIMITED | Private company limited by shares | Live |
| MAHEK ENTERPRISES LIMITED | Private company limited by shares | Live |
| PARKING ENVIRONMENTAL INT'L INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| ENGLAND INC LIMITED | Private company limited by shares | Dissolved |
| ZhongCe Power Cable Enterprise (Group) Limited | Private company limited by shares | Live |
| NEW NGAI LIK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ACE TECHNOLOGY AND ENGINEERING LIMITED | Private company limited by shares | Live |
| T. P. C. ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| Lik Tung Environmental Company Limited | Private company limited by shares | Live |
| MM Entertainment Limited | Private company limited by shares | Live |
| SPAIN INVESTMENT ENERGY S.L LIMITED | Private company limited by shares | Live |