Shandong  Shouguang desulfurization project (2*1000MW) undertaken by us in 2016 has been  put into operation successfully. By adopting the independently developed high  efficient air-tower desulfurization technique (3^rd  generation), we have successfully reduced emission of SO₂  with concentration thereof to less than 10mg, and the desulfurization efficiency  reaches 99.32%. This is the first “Near Zero Emission” project in Shandong and a  key project in Shandong province. It is also our lowest SO₂  emission concentration project so far.