The establishment of Jiangsu Dinghan Electrical Co., Ltd.serves as a milestone in the history of Dinghan. It marks the growth andexpansion of Dinghan and nationwide coverage of production line connectingnorth and south. Established in 2002 in Beijing, Beijing Dinghan TechnologyCo., Ltd. was listed in Shenzhen Stock Exchange in 2009, had won many awards atnational and governmental level, is one of the top 100 trial innovationenterprises jointly recognized by the Ministry of Science and Technology,Beijing municipal government and Zhongguancun Science Park, and had alsoescorted the Olympics Games in 2008 and Shanghai World Expo in 2010. Over 10years, it has made unremitting efforts under the principles of efficiency,practice and innovation, and its equipments are widely used in national railwaynetwork. Its products are applied in nearly 4000 stations nationwide, and areapplied, operated and inspected in the whole line of Beijing-Shanghai expressrailway and Wuhan-Guangzhou express railway. In 2011, its products had coveredall cities open to railway service or under construction for subway andrailway, including 28 cities like Beijing, Shanghai, Guangzhou, Shenzhen andNanjing, etc. Its market share of signal power source for railway is over 80%.