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| SMART SUCCESS CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY MATE LIMITED | Private company limited by shares | Live |
| Shangheng Engineering Group Company Limited | Private company limited by shares | Live |
| FULL KAN ENGINEERING LIMITED | Private company limited by shares | Live |
| AC LASSICFIELD LIGHT ENVIRONMENT DESIGN CO., LIMITED | Private company limited by shares | Live |
| INNOVATION ENERGY INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
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| Wellian Enviro & Safety Products Limited | Private company limited by shares | Live |
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| Ever Success Engineering Company Limited | Private company limited by shares | Live |
| JL ENVIRONMENT (HK) INTERNATIONAL LIMITED | Private company limited by shares | Live |
| LAI CHI ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| Shuen Hing Engineering Limited | Private company limited by shares | Live |
| CHEUK WUI GROUP ENGINEERING LIMITED | Private company limited by shares | Live |
| Entrepreneur Co. Limited | Private company limited by shares | Live |
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| BOCODOL ENTERPRISES LIMITED | Private company limited by shares | Live |
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| LAB Entertainment Limited | Private company limited by shares | Live |
| TIN DI (CABLE) ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
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| Full Power Geotechnical Engineering Limited | Private company limited by shares | Live |
| LEEDA ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SHARP-LION NEW ENERGY CO., LIMITED | Private company limited by shares | Live |
| Standard Energy Management Limited | Private company limited by shares | Live |
| Standard Energy Global Co., Limited | Private company limited by shares | Live |
| Standard Energy Technologies Limited | Private company limited by shares | Live |
| WIN POWER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| POWER LINK ENGINEERING LIMITED | Private company limited by shares | Live |
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| HK DEQI ENERGY GROUP LIMITED | Private company limited by shares | Live |
| Renoright Engineering Company Limited | Private company limited by shares | Live |
| Ali Engineering Company Limited | Private company limited by shares | Live |
| ONE EIGHT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
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| MILLION LAND ENTERPRISES LIMITED | Private company limited by shares | Live |
| Liu Kee Engineering Company Limited | Private company limited by shares | Live |
| Wang Yuan Engineering Company Limited | Private company limited by shares | Live |
| CHI MAN PUMPING SYSTEM ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ABLE ART ENGINEERING LIMITED | Private company limited by shares | Live |
| ALL WELL ENGINEERING LIMITED | Private company limited by shares | Live |
| RICH JOY ENGINEERING LIMITED | Private company limited by shares | Live |
| SUNNY EXPRESS ENGINEERING LIMITED | Private company limited by shares | Live |
| Kai Yuen (Asia) Engineering Limited | Private company limited by shares | Live |
| DYNASTY SERVICE ENTERPRISE LIMITED | Private company limited by shares | Live |
| Tak Lun Enterprise Limited | Private company limited by shares | Live |
| Kai Ying Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| ENDLESS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
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