0TOYO CONSTRUCTION I INTEGRATED REPORT 2024 114.47103.2185.392019120.99101.89101.89104.0092.6394.3476.3420202021127.68105.8682.7620222023Civil engineering130.87Companywide98.70Building construction53.64(FY)Trends in the recycled amount per 100 million yen of completed work(t/100 mil. yen)event at Umi no Koen, a seaside park in Kanazawa-ku, Yokohama. About 50 people, including staff and children, participated in the event, with everyone working together to pack eelgrass seeds, sand, and compost into biodegradable bags made of nonwoven fabric. Divers then scattered the seed packs in the sea. We will continue our involvement in this event as it gives the children who participate an experience that could foster an interest in blue carbon and expand eelgrass bed restoration activities.The recycled amount per 100 million yen of completed work in fiscal 2023 reached 98.7 tons Companywide. The recycled amount/unit for civil engineering projects was 130.87 tons, and for building construction projects 53.64 tons. This was a slight increase in the recycled amount for civil engineering projects and a decrease in the recycled amount for building construction projects, culminating in a slight drop Companywide. The decrease in the recycled amount per 100 million yen of completed work on building construction projects is likely due to a significant reduction in the amount of concrete waste generated since the recycling rate is already nearly 100%.Eelgrass and other types of seagrass as well as kelp and other types of seaweed play an integral role in shaping aquatic environments, absorbing CO2 and supplying oxygen through photosynthesis, maintaining water purity by removing excess nitrogen and phosphorus—which are components in the development of red tides—and stabilizing bottom sediments. Also of note, a report by Japan to the United Nations indicated that the capacity of seagrass and seaweed to capture and immobilize CO2 likely removed about 350,000 tons of CO2 from marine environments in Japan in fiscal 2022. (Source: Ministry of Land, Infrastructure, Transport and Tourism press release dated April 12, 2024)In 2001, Toyo Construction began laying eelgrass seeding sheets at Eigashima Beach, in Akashi, Hyogo Prefecture, to facilitate empirical research on eelgrass. After the start of this initiative, we teamed up with the Eigashima Fishery Cooperative Association and the nonprofit Eelgrass Seed Bank on the project “Eelgrass is the cradle of the sea!” to create a bed of eelgrass. This bed of eelgrass at Eigashima Beach is not only a habitat for diverse organisms but also helps maintain the blue carbon ecosystem. In fiscal 2023, we generated 4.5t-CO2 of blue carbon credits, following up on a similar amount in fiscal 2022. (We joined Eigashima Fishery Cooperative Association and Eelgrass Seed Bank in applying to the Japan Blue Economy (JBE) Association for blue carbon credits.)Television Network Corporation, we held an eelgrass seeding Toyo Construction engages in activities that help protect the environment and leverages technology and the results of R&D to reduce the burden that its business pursuits place on natural ecosystems.J-Blue Credit CertificatesCollecting eelgrass seeds at Eigashima BeachMother and child putting eelgrass seeds, sand, and compost into a biodegradable bag made of nonwoven material1601208040Reduction of the burden caused by business activities to the natural ecosystemRecycled amountBasic conceptParticipation in the utilization of the blue carbon ecosystemIn cooperation with the Tokyo Bay UMI Project and the Nippon 57
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