The wholly-owned subsidiaries of Huanyu Group(Nanjing)limited company—Nanjing East China Electric Power Equipment Installation Limited Company has qualifications of general contract of electronic engineering construction,urban landscaping,municipal landscape architecture.Since the foundation,the company has gained Certificate of Qualification for installation, repair, test and construction of electronic facilities issued by East China Regulatory Bureau of State Electricity Regulatory Commission and has also passed certifications of national electrical power building engineering mechanical and electrical equipment installation service ,providing electric power construction, design, operation and maintenance hosting and other one-stop services for customers.

       Since the company was established, it has been authorized 55 national patents and awarded the "Smart Power Grid Production and Research Base", "Jiangsu (Huanyu) Intelligent Electrical Engineering Technology Research Center".It has also been awarded "Private science and Technology Enterprise of Jiangsu Province", "Advanced Unit of Ping 'an Establishment", "Excellent Enterprise of Jiangsu Province", "Excellent Construction Enterprise of Electric Power Construction of Jiangsu Province", "May Day Labor Award of Jiangsu Province", "National high-tech Enterprise", "Advanced Unit of Quality Management", "Excellent Construction Enterprise of Quality and Safety Management", "AAA" credit unit and Jiangsu Model Enterprise and other honorary titles.Part of the participating projects have won "Quality Project", "Luban Award" and other awards.