In order to implement the "Notice of the State Council on Printing and Distributing the Three-Year Action Plan for Winning the Blue Sky Defence Warfare" and the Ministry of Ecology and Environment and other five ministries and commissions on "Promoting the implementation of ultra-low emissions of the steel industry
" (Circle Air  No. 35), promote Shanghai's iron and steel industry's ultra-low emission transformation, promoting industrial transformation and upgrading, Shanghai Municipal Ecological Environment Bureau, Municipal Development and Reform Commission, Municipal Economic Information Commission and Municipal Finance Bureau jointly issued the "Shanghai Iron and Steel Industry Ultra-low Emissions Reconstruction Work Plan (2019- 2025)".
The goal is to achieve significant progress in the ultra-low emission transformation of Shanghai iron and steel enterprises by the end of 2020, and strive to complete the transformation of about 70% of the production capacity; by the end of 2022, the ultra-low emission transformation of iron and steel enterprises will be basically completed; by the end of 2025, the steel enterprises will be further reduced. Total emissions.