Resource Saving and Waste Reduction

Waste generation volume and recycle rate

The waste generation volume of 74 thousand tons in 2007 decreased to the 60 thousand ton-range in the late 2010s, because domestic factories, which generated the majority of waste in our group, worked hard to meet the challenge using our company-wide challenge system. In Japan, the amount of waste generated has been decreasing since FY2017 due to changes in the product mix, attributed to changes in the sales policy, and reduction in the production volume in addition to waste reduction measures. In FY2022, the amount of waste generated was 44,000 tons (35,000 tons in Japan and 10,000 tons overseas), which fell slightly short of the plan for the fiscal year due to an increase in the amount of waste generated by overseas subsidiaries and affiliates.
The recycling rate relative to the amount of waste generated is on the decline. It was found that part of waste commissioned to external treatment in FY2022 had not been thermally recycled, resulting in a recycling rate of 26%. The data on waste may not be accurate, so a retroactive review will be studied in FY2023. The landfill disposal volume is kept below 0.01% of the total volume of waste generated. There were 10 out of 13 facilities with zero landfill volume.
As the reduction of the volume of waste generated also leads to a reduction of CO₂ emissions resulting from incineration disposal, we will address it as an important issue.

• A; Excellent B; Good C; Bad

Examples of recycling

In FY2022, about 3% of waste generated was recycled internally, while 24% was recycled externally.

(Specific examples)

• Solvents used for cleaning equipment are constantly reused in-house.
• Of solvents and monomers recovered from the production process, recyclable solvents and monomers are purified for reuse.
• Metals, wood, paper, and other materials are subject to external material recycling.
• Some waste plastics are subjected to external material recycling. Most waste plastics are subjected to thermal recycling.

Contribution through products

We offer product lines that contribute to the sustainable use of resources categorized by the keywords of “weight reduction,” “low additive amount,” “long service life,” “high durability,” “increased yield,” and “use of biomass (from petrochemicals).”

Information about the reduction of discharge and recycling of industrial waste products using plastics

We fall under the category of business operators that discharge a large amount of waste (250 tons or more per annum), as stipulated in the Act on Promotion of Resource Circulation for Plastics. The status of discharge of industrial waste of products using plastics is as shown in the table below. Subsidiaries and affiliates in Japan do not fall under the category of business operators that discharge a large amount of waste. However, they have been working to reduce discharge while sharing information with Sanyo Chemical. Part of the discharged waste is recycled as road base materials and raw materials for plastic products. Most of such waste is subject to thermal recycling.

Maintenance and management of industrial waste management facilities information

Based on the Act on Waste Management and Public Cleansing Article 15-2-3-2 in japan, we show the following status of maintenance and management of industrial waste management facilities.