Beijing Guodian Qingxin Environmental Protection Technology Co., Ltd. is an energy-saving and environmentally friendly comprehensive service provider with leading technology and excellent performance, mainly engaged in the investment, R&D, design, construction and operation of flue gas desulfurization and denitrification facilities for large-scale coal-fired power plants. It is a high-tech enterprise in Beijing. The company was founded in 2001 and listed on the Small and Medium-sized Board of the Shenzhen Stock Exchange in April 2011 (stock code: 002573; company abbreviation: Guodian Qingxin). The registered capital is RMB 532.8 million. Guodian Qingxin is based on the high-end power market and has completely independently developed wet desulfurization technology with independent intellectual property rights. Its core technology "rotating sink coupling desulfurization device" has obtained a national patent. This technology has high desulfurization and dust removal efficiency, strong adaptability to working conditions, energy With outstanding advantages such as low consumption, the company has also made reserves for SCR denitrification technology. At the same time, the company has introduced, digested and absorbed the internationally leading integrated purification technology of activated coke drying method for desulfurization and denitrification, and conducted a large number of technologies based on the actual situation of my country's coal-fired power plants. Through innovation and improvement, we have mastered the key technology of dry integrated purification of large flue gas volume, and broke the tradition and developed the technology and process of using lignite to make activated coke, ensuring the company's technological leadership in the country.