| HK SAVE ENERGY INVESTMENT HOLDING LIMITED | Private company limited by shares | Dissolved |
| ENERGETIC ASIA LIMITED | Private company limited by shares | Live |
| YANS ENTERPRISE LIMITED | Private company limited by shares | Live |
| HANG WING ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SUN WELL ENGINEERING LIMITED | Private company limited by shares | Live |
| UNI-LINK ENGINEERING LIMITED | Private company limited by shares | Live |
| OCEAN WAY ENTERPRISES LIMITED | Private company limited by shares | Live |
| GREEN ENVIROTECH LIMITED | Private company limited by shares | Live |
| YEE NGAI ENGINEERING LIMITED | Private company limited by shares | Live |
| TAI FU NEW ENERGY HOLDING LIMITED | Private company limited by shares | Live |
| FODAK TRADING & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| T & W ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| VICENT ENGINEERING LIMITED | Private company limited by shares | Live |
| TSE HAM KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SHELLY INDUSTRIAL AUTOMATION ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| LUCK FANCY ENTERPRISE LIMITED | Private company limited by shares | Live |
| SUNNY LUCK ENTERPRISE LIMITED | Private company limited by shares | Live |
| ART HONEST ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| MANLY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LUCK HILL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SKY NEW ENTERPRISE LIMITED | Private company limited by shares | Live |
| KAT YUE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| YAN TECH CONSTRUCTION & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUNLUX ENTERPRISES LIMITED | Private company limited by shares | Live |
| JIANG SU ELECTRIC POWER ENGINEERING LIMITED | Private company limited by shares | Live |
| HING WAI MACHINERY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SINOTECH ENVIRONMENTAL TECHNOLOGIES CO., LIMITED | Private company limited by shares | Live |
| GLOBAL GROUP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL VIEW ENTERPRISES LIMITED | Private company limited by shares | Live |
| FORTUNE DRAGON ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HAPPY SKY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ABS ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN DYNAMIC ENGINEERING LIMITED | Private company limited by shares | Live |
| ABS ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| CN ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| WHY ENGINEERING AND CONSTRUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| e-New Media Company Limited | Private company limited by shares | Dissolved |
| ASIA ENERGY STOCKS LIMITED | Private company limited by shares | Live |
| CAMELL ENGINEERING LIMITED | Private company limited by shares | Live |
| VAK ENTERPRISES LIMITED | Private company limited by shares | Live |
| LEADEX ENTERPRISES LIMITED | Private company limited by shares | Live |
| STAR MARK ENTERPRISES LIMITED | Private company limited by shares | Live |
| Citygrow Engineering Company Limited | Private company limited by shares | Live |
| SMART VICTOR ENTERPRISES LIMITED | Private company limited by shares | Live |
| SPEEDY FORD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WING TAI ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ELEMENT ENTERTAINMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| TOP ABLE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CENTURY HONEST ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| COMFORT ENGINEERING & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| BF ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| YUN HO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENGTANUN ASIA LIMITED | Private company limited by shares | Live |
| CHINA VICTORY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| DRAGON ENTERPRISE LIMITED | Private company limited by shares | Live |
| LIFE ENHANCE LIMITED | Private company limited by shares | Dissolved |
| CHIU KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| EXCEL ENGINEERING & CONSULTING LIMITED | Private company limited by shares | Dissolved |
| MY ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| MOBILITY ENGINEERING LIMITED | Private company limited by shares | Live |
| SUM IN ENTERPRISE LIMITED | Private company limited by shares | Live |
| SILVER GAIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HOP KEE (KAM FAI) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BROADNET ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENRICH LIMITED | Private company limited by shares | Dissolved |
| DRAGON SKY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ETERNAL MAX ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FAR SMART ENGINEERING LIMITED | Private company limited by shares | Live |
| FINE SMART ENGINEERING LIMITED | Private company limited by shares | Live |
| GAIN LUCK ENGINEERING LIMITED | Private company limited by shares | Live |
| GOLD JOY ENGINEERING LIMITED | Private company limited by shares | Live |
| GROUP DRAGON ENGINEERING LIMITED | Private company limited by shares | Live |
| JAPAN WHITE CLOUD ENGINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SURPLUS CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| RICH HONEST CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SURE FINE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| STAND FINE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SILVER BASE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NEW LUCK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLD FINE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MAX JOY ENGINEERING LIMITED | Private company limited by shares | Live |
| MORAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA ON CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GS Valve Engineering (Hong Kong) Company Limited | Private company limited by shares | Live |
| FORTUNE TIME ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ELP ENGINEERING LIMITED | Private company limited by shares | Live |
| ALL TEAM ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| USA VEHICLE INTERNAL FIRED ENGINEER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| LUMI ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| MEGA AIR ENGINEERING (CHINA) LIMITED | Private company limited by shares | Live |
| CHONG YAU ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| GOLD SHINY ENGINEERING LIMITED | Private company limited by shares | Live |
| CHOW ENTERPRISE LIMITED | Private company limited by shares | Live |
| AMERICA NEW ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ENERGEAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FUITON ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENERGYLAND LIMITED | Private company limited by shares | Dissolved |
| CONCORD GRAND ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WANG FU CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| YAU MING ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |