| Zhongzhi Energy HK Co., Limited | Private company limited by shares | Live |
| COASTAL ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| COLOA ENERGY CO., LIMITED | Private company limited by shares | Dissolved |
| COLUMBIA ENERGY LIMITED | Private company limited by shares | Dissolved |
| COMBINED ENERGY LIMITED | Private company limited by shares | Dissolved |
| COMBINED ENERGY LIMITED | | Live |
| ENERGY COMM LIMITED | Private company limited by shares | Dissolved |
| ENERGY COMPONENTS ENTERPRISE LIMITED | Private company limited by shares | Live |
| EB Conal Energy Limited | Private company limited by shares | Live |
| C&P ENERGY CONCENTRATE LIMITED | | Live |
| ENERGY CONCEPT LIMITED | Private company limited by shares | Dissolved |
| GE Energy Concept Limited | Private company limited by shares | Dissolved |
| ENERGY CONCEPT LIMITED | Private company limited by shares | Live |
| GRAND CONCORD NEW ENERGY LIMITED | Private company limited by shares | Dissolved |
| CONG YU ENERGY LIMITED | | Live |
| Conjoin Minerals and Energy Limited | Private company limited by shares | Live |
| Hua Shu Energy Conservation Company Limited | Private company limited by shares | Live |
| China Energy Conservation (Hong Kong) Company Limited | Private company limited by shares | Dissolved |
| China Energy Conservation (Hong Kong) Company Limited | Private company limited by shares | Live Ceased dormancy on 27-Jun-2016 |
| CHINA ENERGY CONSERVATION INDUSTRY LIMITED | Private company limited by shares | Live |
| China Energy Conservation Investments Company Limited | Private company limited by shares | Live |
| CHINA ENERGY CONSERVATION SYSTEM LIMITED | Private company limited by shares | Dissolved |
| HK RD ENERGY CONSERVATION CO., LIMITED | | Live |
| ENVIRONTECH ENERGY CONSERVATION LIMITED | Private company limited by shares | Live |
| ENERGY CONSERVATION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| LFG ENERGY CONSERVATION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GDE SCIENTIFIC ENERGY CONSERVATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| KCK Energy Conservation System Limited | Private company limited by shares | Live |
| Energy Conservation Systems Limited | Private company limited by shares | Dissolved |
| ENERGY CONSERVATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Energy Conservation Technology Company Limited | Private company limited by shares | Dissolved |
| HK HANZHONG ENERGY CONSERVATION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK WEIDU ENERGY CONSERVATION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Energy Construction Company Limited | Private company limited by shares | Live |
| ESG Energy Construction Limited | Private company limited by shares | Live |
| CHINA ENERGY CONSTRUCTION LIMITED | Private company limited by shares | Live |
| CHINA NEW ENERGY CONSTRUCTION CO. LIMITED | Private company limited by shares | Live |
| CHINA ELECTRIC ENERGY ENGINEERING CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Zytech Energy And Construction Co., Limited | Private company limited by shares | Live |
| Encycle Energy Construction Limited | Private company limited by shares | Live |
| ENERGY ENGINEERING AND CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENERGY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JINZUO TRAFFIC ENERGY CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| Oil & Energy Consultation Limited | Private company limited by shares | Live |
| Energy Consulting Company Limited | Private company limited by shares | Live |
| NEW ENERGY CONSULTING COMPANY LIMITED | Private company limited by shares | Live |
| TW Energy Consulting Limited | Private company limited by shares | Live |
| ASIA ENERGY CONSULTING LIMITED | Private company limited by shares | Live |
| CENTURY ENERGY CONSULTING LIMITED | Private company limited by shares | Live |
| NEW ENERGY CONSULTING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NEW ENERGY FINANCING AND CONSULTING LIMITED | Private company limited by shares | Live |
| FRONTIER ENERGY CONSULTING LIMITED | Private company limited by shares | Live |
| Thaisino Energy Investment Consulting Company Limited | Private company limited by shares | Dissolved |
| LUXURY ENERGY ENGINEERING CONSULTING LIMITED | Private company limited by shares | Live |
| MAHANA ENERGY CONSULTING LIMITED | Private company limited by shares | Live |
| PACIFIC ENERGY CONSULTING LIMITED | Private company limited by shares | Live |
| JS POWER & ENERGY CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Renewable Energy Consulting Limited | Private company limited by shares | Live |
| Smart Energy Consulting Limited | Private company limited by shares | Live |
| Energy Strategy Consulting Limited | Private company limited by shares | Live |
| Zoefor Energy Consulting Limited | Private company limited by shares | Live |
| CONSULT-TECH ENERGY LIMITED | Private company limited by shares | Dissolved |
| NEW CONTINENT ENERGY LIMITED | Private company limited by shares | Live |
| CONTINENT OIL & ENERGY LIMITED | Private company limited by shares | Live |
| New Continent Energy Holding Limited -The- | Private company limited by shares | Live |
| 7 Continents Energy Limited | Private company limited by shares | Live |
| Contour Energy Limited | Private company limited by shares | Dissolved |
| Cooperate&Creat New Energy Co., Limited | | Live |
| Energy Corder Limited | Private company limited by shares | Live |
| Cornerstone Energy Limited | Private company limited by shares | Live |
| Cornerstone Renewable Energy Limited | Private company limited by shares | Live |
| RAB ENERGY CORP. (I) LIMITED | Private company limited by shares | Dissolved |
| WL Energy Corp Limited | Private company limited by shares | Live |
| Budget Energy Corp. Limited | Private company limited by shares | Live |
| Ecode Energy Corp. Limited | Private company limited by shares | Dissolved |
| Surpass Energy Corp., Limited | Private company limited by shares | Live |
| Western Grand Energy Corperation Limited | | Live |
| COSMOPOLITAN ENERGY & RESOURCES LIMITED | Private company limited by shares | Dissolved |
| COSUNG ENERGY LIMITED | Private company limited by shares | Live |
| COSUPER ENERGY LIMITED | Private company limited by shares | Live |
| COVANTA ENERGY ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| Covart Energy Limited | Private company limited by shares | Live |
| CRAIGTON ENERGY LIMITED | Private company limited by shares | Live |
| Createmax New Energy Limited | Private company limited by shares | Live |
| ENERGY CREATION LIMITED | Private company limited by shares | Dissolved |
| CREATION ENERGY LIMITED | Private company limited by shares | Dissolved |
| ENERGY CREATION LIMITED | Private company limited by shares | Live |
| CREATION ENERGY LIMITED | Private company limited by shares | Live |
| New Creation Energy Engineering Limited | Private company limited by shares | Live |
| Wealth Energy Creation Company Limited | Private company limited by shares | Live |
| CREATIVE ENERGY LIMITED | Private company limited by shares | Live |
| Crescent Energy Asia Pte Limited | Private company limited by shares | Live |
| Coastal Crescent Energy Company Limited | Private company limited by shares | Live |
| Crescent Energy Private Limited | Private company limited by shares | Live |
| CREST ENERGY LIMITED | Private company limited by shares | Live |
| Crowdtrip New Energy (China) Holding Limited | Private company limited by shares | Live |
| CROWN ENERGY LIMITED | Private company limited by shares | Live |
| Crown New Energy Limited | Private company limited by shares | Live |
| Euro Crown Energy Limited | Private company limited by shares | Live |
| CSUN Energy (Hong Kong) Co., Limited | Private company limited by shares | Live |