The recycled resources manufactured by Daiseki are resources derived from industrial wastes, made reusable through recycling. They can contribute to carbon neutrality through non-use of fossil fuels. It also contributes to the circular economy by reducing the usage of natural resources.

Sales ratio of the environmental business in the Daiseki Group

（%）

In FY2023, the environmental business accounted for 92% of the net sales of the Daiseki Group.

*In this context, the environmental business refers to the business that contributes to environmental conservation, resource recycling, and carbon neutrality, such as recycling processing and production or sales of recycling resources.

Examples of recycled resources manufactured by the Daiseki Group

• Raw materials for cement
• Supplemental fuels
• Recycled heavy oil
• Metal slag and chemicals
• Biodiesel fuels
• Plasterboard material
• Lead recycling

Raw materials for cement

Environmental consideration points

• ●Contribution to reduced consumption of natural resources such as limestone
  Our cement raw material sludge is used by cement companies as a substitute for natural resources such as limestone. Our cement raw material sludge shipment volume in FY2023 was 638,000 tons, yielding a significant reduction in limestone consumption.
• ●Contribution to the extension of the lifespan of industrial waste final disposal sites
  By recycling sludge into raw material sludge for cement, we contribute to extending the lifespan of landfill sites and other final industrial waste disposal sites.

Supplemental fuels

Environmental consideration points

• ●Contribution to reduced consumption of coal and other fossil fuels
  Our supplemental fuels are used by cement companies as substitutes for fossil fuels such as coal. We shipped 198,000 tons of supplemental fuel in FY2023, contributing to a corresponding reduction in the use of coal.
• ●Treatment with lower greenhouse gas emissions
  Our waste solvent recycling can cut greenhouse gases by approximately 97.7% compared to simple incineration. This leads to an estimated reduction of 443,000 tons of greenhouse gases, calculated from our treatment record in FY2023.

Recycled heavy oil

Environmental consideration points

• ● Contribution to reduced consumption of heavy oil and other fossil fuels
  Daiseki's recycled heavy oil is used by many customers in the steel and paper industries as a substitute for heavy oil. In FY2023, Daiseki shipped 41,000 tons of recycled heavy oil, the caloric equivalent of 39,000 tons of bunker A heavy oil. Our company can be considered as contributing to this amount of reduction in the use of bunker A heavy oil.
• ●Treatment accompanied by low greenhouse gas emissions
  Our recycling of waste oils into recycled heavy oil can cut greenhouse gases by approximately 99.1% compared to simple incineration. This leads to an estimated reduction of 116,000 tons of greenhouse gases, calculated from our treatment record in FY2023.

Metal slag and chemicals

Environmental consideration points

• ● Contribution to the recycling of usable metals, etc.
  Usable metals currently find use in a variety of electric appliances and other familiar products, but Japan imports most of these metals. These usable metals are natural resources and will eventually be depleted. Our company collects usable metals such as copper and nickel from waste and recycles them to achieve the circulation of usable metals. In FY2023, Daiseki recovered 2,600 tons of usable metal materials from waste and supplied them to manufacturers.
• ●Contribution to the recycling of chemicals
  By recovering usable metals and by refining sulfuric acid and hydrochloric acid from industrial waste for supply to manufacturers, we contribute to the recycling of chemicals.
  In FY2023, Daiseki supplied 3,800 tons of chemicals to manufacturers.

Biodiesel fuels

Environmental consideration points

• ●Contribution to reduced consumption of fossil fuels
  These fuels can be used as substitutes for diesel oil, leading to reduced use of fossil fuels.
• ● Contribution to prevention of air pollution
  The exhaust gas from combustion contains almost no soot or sulfur oxides (SOx), helping to prevent air pollution.
• ●No impact on foodstuff supply and demand
  We turn waste cooking oil into a fuel that does not overlap with the demand for food oils that are also a material for bioethanol, thus creating no impact on foodstuff supply and demand.

Plasterboard material

Environmental consideration points

• ●Contribution to plaster and paper resource recycling
  We recycle waste plasterboard from construction sites and demolition sites into gypsum and paper production materials and return these to plasterboard and paper manufacturers, thereby contributing to reduced consumption of the natural mineral gypsum. In FY2023, we manufactured 96,000 tons of recycled materials for plasterboard and paper production.
• ●Contribution to the reduction of final construction waste disposal volume
  Construction waste accounts for about 20% of the industrial waste generated in Japan. By recycling waste plasterboard from construction and demolition sites into materials for plasterboard and paper production, we contribute to reducing the volume of final construction waste disposal.

Lead recycling

Environmental consideration points

• ●Contribution to the effective use of lead resources
  We recycle the lead in used lead-acid batteries and ship it to battery manufacturers, which contributes to more efficient use of lead material. In FY2023, Daiseki MCR supplied 12,000 tons of recycled lead to manufacturers.
• ● Contribution to significant reductions in greenhouse gas emissions through the use of renewable energy
  By using carbon-neutral LNG as fuel in our used lead-acid battery melting furnaces and using electric heating and refining furnaces to smelt the melted pig lead, we significantly reduce greenhouse gas emissions.

Recycled paper

Environmentally friendly points

• ●Replacing paper pulp with used cardboard and shredded paper scraps can reduce usage of wood resources.
• ●They can be processed with less energy than plain paper, contributing to reduction of green house gas emissions.