Contributing to Creation of a Circular Economy
Basic Policy
Nippon Steel strives for the greatest efficiency possible, including minimization or elimination of waste, in use of our energy and limited resources, in every process of steelmaking. Consequently, we work to recycle internally-generated by-products so that we can realize zero emission. We are also actively engaged in recycling of waste generated in society or by other industries.
Target and KPI
- Promotion of in-house zero emissions
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- Reduction in final disposal amount
263,000 tons or less (FY2025 target)
- Reduction in final disposal amount
- Promotion of recycling of waste generated in society
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- Establishment of a waste plastics recycling system to expand its collection volume
Initiatives and Achievements
Efficient use of resources and energy
We use industrial water and energy resources such as electricity and fuel in producing steel products, which are mainly made of iron ore mined overseas, coal used as a raw material for reducing iron ore, and iron scrap recycled by society.
Nippon Steel’s steelworks use 100% of by-product gas generated in the steelmaking process, as fuel for heating of steel or as energy for an onsite power plant. Concerning water resources, 90% of water used in cooling and cleaning of products and manufacturing facilities are reprocessed and repeatedly used. These are examples of our efforts to make maximum use of limited resources and energy, without waste.
Promote internal zero emission
Almost all of our by-products are recycled both in-house and externally. As a result, we maintain a high recycling rate of approximately 99%.
Efforts made through collaboration with society and other industries
We recycle 100% of waste plastics collected from ordinary households through chemical recycling by using a coke oven.