In the conversion (power generation, collective energy) sector, a reduction of about 24 million tons was confirmed by reflecting the policy to reduce fine dust and convert to eco-friendly energy, and for about 34 million tons, the 3rd basic energy plan was established, the energy tax system was reformed, and environmental dispatch was strengthened. It was decided to materialize before submitting the revised Nationally Determined Contribution (NDC) to the United Nations in 2020. In the industrial sector, about 99 million tons will be reduced by improving industrial processes, saving energy, and disseminating excellent reduction technologies. In the building sector, about 65 million tons will be reduced by strengthening energy standards for new buildings and activating green remodeling of existing buildings.