On June 20, 2024, at a steel frame demolition project in Kamiogi 1-chome, Suginami City, Tokyo, a concrete block that was part of the ceiling unexpectedly fell during welding work on corrugated sheets on the third-floor roof, striking a worker on the first floor. As a result, Uchida Construction Industry Co., Ltd. and its representative director were each fined 200,000 yen by the Tokyo Summary Court for violations of Article 21, Paragraph 2, and Article 61, Paragraph 2, of the Industrial Safety and Health Act. The court ruling was finalized on November 18, 2025. This incident falls under Item 3 of Paragraph 1 of Article 28 of the Construction Business Act.