Guozhen Environmental Protection is the abbreviation of Anhui Guozhen Environmental Protection and Energy Saving Technology Co., Ltd., and it is the first professional company to provide "one-stop six-dimensional service" comprehensive solution in the marketization process of domestic sewage treatment industry. It has formed a complete life-cycle industrial chain including domestic sewage treatment research and development, design consultation, core equipment manufacturing, system equipment integration, engineering construction, installation and commissioning, investment and operation management, and won the title of "Top Ten Influential Enterprises in China Water Industry" for four times and the title of "Top Ten Excellent Equipment Manufacturers and Top Ten Excellent Service Organizations in China Water Industry" for eight times. At the end of 2009, Guozhen Environmental Protection signed an equity cooperation agreement with Marubeni Co., Ltd., a fortune 500 company, and became a strategic partner. The company has Grade A engineering design qualification, rich design experience and achievements in municipal and industrial wastewater treatment and solid waste treatment, participated in the construction of more than 300 sewage treatment projects, and managed and operated more than 50 sewage treatment plants with different processes in 8 provinces across the country. The number and scale of operating projects rank among the top in China. The company has a provincial engineering technology research center, with dozens of patents and proprietary technologies. Is China's water sector in the "Tenth Five-Year Plan" and "Eleventh Five-Year Plan" period, and in 2009 won the second prize of national scientific and technological progress (the highest award in the industry that year). The inverted umbrella surface aerator won the title of "China Famous Brand Product" among similar products in the whole industry.