According to the prospectus, Tongda Power's basic earnings per share in 2009 were 0.42 yuan. According to Wind Information's institutional forecast statistics, the company expects earnings per share in 2010 to be 0.60 yuan, and the predicted price-earnings ratio of listed electric motor manufacturing companies in 2010 is about 40.29 times. At the same time, the number of company customers has continued to increase in recent years, and now the company has accumulated rich customer resources. Based on the above factors, we estimate that the company's relatively reasonable valuation range is 18.80-20.38 yuan.