| LIK SUN ENGINEERING CO & LIMITED | Private company limited by shares | Live |
| RMA Energy Group Limited | Private company limited by shares | Live Commenced dormancy on 14-Dec-2015 |
| Joyful Engineering Limited | Private company limited by shares | Live |
| Enecore Carbon International Limited | Private company limited by shares | Live |
| Best Century Enterprise Co., Limited | Private company limited by shares | Live |
| SUN RISE ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENLIGHTENMENT INVESTMENT LIMITED | Private company limited by shares | Live |
| GLOBAL ENGINEERING SUPPLY COMPANY LIMITED | Private company limited by shares | Live |
| Soul Design & Engineering Company Limited | Private company limited by shares | Live |
| RICHTOP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| LEGEND CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| X-GREENPOWER NEW ENERGY CO., LIMITED | Private company limited by shares | Live |
| Mega Engineering & Technology Limited | Private company limited by shares | Live |
| Indigo Energy Asia Limited | Private company limited by shares | Dissolved |
| ETERNAL ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SINO-ITALIAN JOINT VENTURE JDF ENVIRONMENT EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| DHS ENGINEERING LIMITED | Private company limited by shares | Live |
| ENOSIS ASIA LIMITED | Private company limited by shares | Live |
| CHONG WAI ENGINEERING LIMITED | Private company limited by shares | Live |
| SW Energy Resources Company Limited | Private company limited by shares | Dissolved |
| DRAGON ENTERPRISES LIMITED | Private company limited by shares | Live |
| Tsin Chiu Engineering Company Limited | Private company limited by shares | Dissolved |
| FABLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WINNER ENERGY LIMITED | Private company limited by shares | Live Commenced dormancy on 28-Mar-2011 |
| Chung Wo Energy Limited | Private company limited by shares | Live |
| TP Engineering Company Limited | Private company limited by shares | Live |
| ENERGY LINK INVESTMENTS LIMITED | Private company limited by shares | Live |
| Solar Energy (India) Limited | Private company limited by shares | Live |
| FOOK LOI ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| JB Entertainment Limited | Private company limited by shares | Live |
| HK MSD Environmental Protection Material Limited | Private company limited by shares | Dissolved |
| Radiance Energy (India) Limited | Private company limited by shares | Dissolved |
| Yiu Hing Engineering Limited | Private company limited by shares | Live |
| Zonzou New Energy Technology Limited | Private company limited by shares | Live |
| VOWS ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| HULK ENERGY MACHINERY CO., LIMITED | Private company limited by shares | Live |
| C-Room Audio & Lighting Engineering Limited | Private company limited by shares | Live |
| RIG ENGINEERING LIMITED | Private company limited by shares | Live |
| FRIENDSHIP ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| CHINA NEW ENERGY MODERN HI-TECH INVESTMENT LIMITED | Private company limited by shares | Live |
| RUI SUN ENTERPRISE LIMITED | Private company limited by shares | Live |
| LEADER ENERGY LIMITED | Private company limited by shares | Dissolved |
| Enzynomics (H.K.) Limited | Private company limited by shares | Live |
| KONGWELL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Pusheng Energy Limited | Private company limited by shares | Live |
| HUAXIN ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| ENGADA LIMITED | Private company limited by shares | Dissolved |
| PACIFIC SENSE ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| SKY FORTUNE ENGINEERING LIMITED | Private company limited by shares | Live |
| JIAN CHENG ENGINEERING LIMITED | Private company limited by shares | Live |
| PQ ENTERPRISES LIMITED | Private company limited by shares | Live |
| ASIA CLEAN TECH ENERGY INVESTMENTS COMPANY LIMITED | Private company limited by shares | Live |
| WAY ONE ENGINEERING LIMITED | Private company limited by shares | Live |
| ENOKO LIMITED | Private company limited by shares | Live |
| Boya Engineering Limited | Private company limited by shares | Dissolved |
| SUNPARK ECO ENERGY SYSTEMS CO., LIMITED | Private company limited by shares | Live |
| WAH TON AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Live |
| JINHUA LONGXIANG ENTRANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SKT ENTERPRISE LIMITED | Private company limited by shares | Live |
| GRAND ENERGETIC LIMITED | Private company limited by shares | Dissolved |
| Lufeng Environment Protection Engineering Co., Limited | Private company limited by shares | Live |
| AVANTGARDE ENGINEERING LIMITED | Private company limited by shares | Live |
| HING WAH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| GENERAL ENGINEERING (HONG KONG) CO. LIMITED | Private company limited by shares | Dissolved |
| ENEN CO., LIMITED | Private company limited by shares | Live |
| ENSOL LIMITED | Private company limited by shares | Dissolved |
| JinMuTu Environmental Materials (H.K.) Limited | Private company limited by shares | Dissolved |
| WAY IN ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ENYA LIMITED | Private company limited by shares | Dissolved |
| MANABLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JAPAN MITSUBISHI GENERAL GASOLINE ENGINE JW (HK) LIMITED | Private company limited by shares | Live |
| LM Engineering Trading Limited | Private company limited by shares | Dissolved |
| DASTAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCKY GOAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| OCEAN LUCK ENTERPRISES LIMITED | Private company limited by shares | Live |
| Chiu Lam Design Engineering Company Limited | Private company limited by shares | Live |
| ALEX ENERGY LIMITED | Private company limited by shares | Dissolved |
| MAX CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENJOY HOMEWORD (H.K.) DECORATION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENTIFIC LIMITED | Private company limited by shares | Live |
| SUNSHINE NEW ENERGY CO., LIMITED | Private company limited by shares | Dissolved |
| Sunnypower New Energy Co., Limited | Private company limited by shares | Live |
| RELICON NEW ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SHEUK YU ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Goldfield Design & Engineering Company Limited | Private company limited by shares | Dissolved |
| ON MEI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Shilat Enterprises Company Limited | Private company limited by shares | Live |
| KIN LOK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HOP SIK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HAI WAN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG ENVIRONMENTAL ART ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Energy Strategy Consulting Limited | Private company limited by shares | Live |
| MFL Engineering and Machinery (Hong Kong) Limited | Private company limited by shares | Live |
| SK Energy Hong Kong Limited | Private company limited by shares | Live |
| WAI LAP ENGINEERING LIMITED | Private company limited by shares | Live |
| BOLAN ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| GRAND EVER ENTERPRISE LIMITED | Private company limited by shares | Live |
| HT ENTERPRISES HK LIMITED | Private company limited by shares | Live |
| AMPLE ENERGY LIMITED | Private company limited by shares | Live |