Hunan Yongqing Environmental Protection Group has been developing the environmental protection business since 1990, and has 8 years of mature experience in environmental protection project design and engineering contracting, and is a private high-tech environmental protection enterprise with independent design capability and excellent performance. Group registered capital of nearly 100 million yuan, headquartered in the center of Changsha, and Liuyang Industrial Park invested 500 million yuan to establish a large-scale environmental protection equipment manufacturing base covering an area of 328 acres, with Hunan Province, the first large-scale complete sets of sewage treatment equipment production line, the first large-scale desulfurization, denitrification complete sets of environmental protection equipment production line. The main business of the group includes: flue gas desulfurization and denitrification of thermal power plants, sewage treatment, garbage disposal, design, equipment manufacturing, construction, commissioning and general contracting of large and medium-sized coal-fired kilns, urban sewage treatment plants and urban garbage disposal sites, and it is the only comprehensive environmental protection enterprise that realizes the industrialization of the layout in Hunan Province. In recent years, with the advantages of talent, technology, management and capital, the company has completed 58 waste water and waste residue treatment projects, 26 projects under construction, and the completed projects have maintained a 100% excellence rate; it has been awarded the "Outstanding Environmental Protection Project Award" issued by environmental protection departments for many times, and has been rated as "National Key Practical Technology Demonstration Project for Environmental Protection". It has won the "Excellent Environmental Protection Project Award" issued by the environmental protection department for many times, and has been honored as "National Key Practical Technology Demonstration Project for Environmental Protection". Ltd. and Datang Zhuzhou Huayin Thermal Power Generation Co., Ltd. have successively won the general contracting project of Hunan Datang Xiangtan Power Generation Co., Ltd.'s Phase II 2×600MW flue gas desulfurization project, which is the largest flue gas desulfurization project of thermal power plant in the central and southern regions, and the general contracting project of Datang Zhuzhou Huayin Thermal Power Generation Co. The general contracting project of flue gas desulphurization project of 2×300MW unit in the second phase of the project has been praised by all walks of life.