Liu Dechun, director of the Resource Saving and Environmental Protection Department of the National Development and Reform Commission, said at a press conference on the morning of the 22nd that he would further promote energy-saving transformation in key areas and industries. We will support the linkage of energy saving and carbon reduction transformation, heating transformation and flexibility transformation of coal-fired power units. With regard to the advanced level of standard energy efficiency, we will promote the transformation of energy conservation and carbon reduction in iron and steel, non-ferrous, petrochemical, chemical, building materials and other key energy industries. We will speed up the energy-saving renovation of residential and public buildings, and continue to promote energy-saving and carbon reduction of infrastructure such as old heating networks.