SUSTAINABILITY Initiatives for Social Contribution

Due to our connection with the Kawaguchiko Stellar Theater in Yamanashi Prefecture, where we constructed a retractable roof, we are supporting the Mt. Fuji Kawaguchiko Piano Festival through the corporate hometown tax donation program. This event is an exquisite concert featuring performances by many musicians, including world-renowned pianist Nobuyuki Tsujii, interwoven with the magnificent natural surroundings. As an event that brings together classical music fans from all over the country, it also has a positive impact on the local economy. In 2025, the festival will be held from September 19th to 23rd,

On June 11th, we visited Chiba Municipal Sanno Junior High School, and on June 18th, we visited Chiba Municipal Konda Junior High School, where we introduced our company's business operations and the appeal of manufacturing to the second-year junior high school students. Since last year, we have been providing on-site lessons through Chiba Prefecture's supplementary career education teaching material, "Discover Chiba Prefecture." This initiative was Designed to give junior high school students, who are beginning to think about their future career paths, an opportunity to think about the meaning of work. Through interaction with working people, the students can deepen their self-understanding and develop a desire to learn.

Following last year, our company's work was featured in the supplementary career education material for Chiba Prefecture, "Discover Chiba Prefecture: Job Notebook for the Next 10 Years." The northern and southern editions have been distributed to approximately 56,000 second-year students at public junior high schools throughout Chiba Prefecture. "Discover Chiba Prefecture" is published annually by Chiiki Shimbunsha Co., Ltd., with the aim of helping students learn about local industries and nearby companies, and the meaning and joy of work. It features supporting companies from various industries in Chiba Prefecture.

　The "Okitsuru Bridge" ordered by the Kyushu Regional Development Bureau is a replacement bridge that was washed away by the heavy rains of July 2020. All of our employees have been working with a sense of mission to meet the expectations of the local community who hope for a speedy recovery. During the launch and erection of the bridge, we held site tours (a total of three times), and many people, including local residents and civil engineering students, participated.

　On November 2024, 11, we invited students from Ushiku City Okuno Compulsory Education School to the "Ushiku Viaduct (Steel Superstructure) Construction of the Metropolitan Intercity Expressway" ordered by East Nippon Expressway Co., Ltd., and held a site tour. Despite the unfortunate weather on the day, many energetic children participated and enjoyed each event.

On March 2018, 7, we invited students from Meijo University's Department of Civil Engineering Design to the site of the Tokai Ring Road Chofuku 1 Viaduct and Minami-Taisha 1 Viaduct, which were ordered by the Chubu Regional Development Bureau, and held a site tour. There were only three participants on the day, but we believe that by seeing the actual bridge construction site, they were able to get a more concrete image of the construction work.

On October 2018rd and 23th, 24, we invited students from the local Okazaki Technical High School to the Tokaido Ring Road Seki Hiromi Interchange West Main Line Bridge site, which was ordered by the Chubu Regional Development Bureau, and held a site tour. On the day, on-site staff gave an overview of the construction work, and the students got on a lift vehicle to see the site from a high place that they would not normally be able to see. We hope that this site tour will help them learn more about our work.

This construction is part of the Sanriku Coastal Road and Karakuwa Takada Road Project, which is being carried out to achieve "early recovery from the Great East Japan Earthquake," and will form part of a "disaster-resistant road network." Construction began in March 2014, and included factory fabrication, erection, on-site painting, deck slab work, and wall balustrade work. Erection was carried out with a 1-ton all-terrain crane for the first and seventh spans, and a 7-ton crawler crane for the third to sixth spans. The second span was constructed above the river, with a bend set up.

In the Kumamoto earthquake that occurred in April 2016, the bridge girder of Kiyamagawa Bridge moved approximately 500 mm in the bridge axis direction (north side), the bearings were destroyed, and buckling and deformation were confirmed in the bottom flange of the main girder. The bridge is made up of a total of 12 bridge girders, and restoration work will be carried out on the 9-span section (2 spans) from P9 (Fukuoka side) to A23 (Kagoshima side). Restoration work will be carried out first on the outbound lanes, followed by the inbound lanes, and traffic will be stopped by allowing traffic to pass in both directions on the inbound lanes while work is being carried out on the outbound lanes.

This is one of the disaster-affected urban area reconstruction and improvement projects to raise and rebuild Rikuzentakata, which suffered severe tsunami damage in the Great East Japan Earthquake.The mountain on the Kesennuma side was cut down and earth and sand was directly conveyed using a belt conveyor to the raised section on the opposite bank of the Kesen River. A Suspension bridge for transportation. This belt conveyor is approximately 1km long and 3m wide, and can transport the equivalent of 1.8 dump trucks per day. This will shorten the construction period by approximately 1 years. This Suspension bridge is a place where various local children