Inappropriate Conduct Related to Third-Party Certification and the CMJ Registration System

「As we have confirmed that the measures to prevent recurrence were complete as of the end of March 2026, we hereby report this and will conclude our regular reports on the progress of those measures.」

「As a result, most corrective actions have been completed, and measures to prevent recurrence have progressed broadly as planned.」

「On 11 December 2023, the company received an investigation report from the committee. The report identified numerous organisational issues, including insufficient systems for ensuring psychological safety when reporting improper conduct. Taking the report’s findings seriously, the company is working with full effort on fundamental measures to establish a management approach that places compliance first throughout the group.」

「It was discovered that improper conduct had occurred in connection with certification by Underwriters Laboratories Limited Liability Company, a US-based third-party safety science organization, involving certain resin products manufactured and sold by the company and its equity-method affiliate 東洋スチレン㈱. It was also discovered that 東洋スチレン㈱ had engaged in improper conduct concerning the Components and Materials Registration System (CMJ Registration System), established in Japan in connection with the Electrical Appliances and Materials Safety Act. These matters are collectively referred to below as the "improper conduct."」