HIOKI (HIOKI E.E. CORPORATION, Headquarters: Ueda City, Nagano Prefecture, President and CEO: Takahiro Okazawa) has received the highest "A" score in the "Supplier Engagement Assessment (SEA)" for its environmental information disclosure in the 2025 fiscal year, conducted by CDP, an international non-profit organization. As a result, the company has been listed on the "SEA Leaderboard" as a company demonstrating excellent initiatives. HIOKI will continue to work towards reducing environmental impact across its entire supply chain to realize a sustainable society. About CDP CDP is an international non-profit organization that operates a global environmental disclosure platform to promote environmental information disclosure by companies and local governments. In addition to climate change, forests, and water security, in recent years it has investigated and analyzed initiatives related to the global environment, such as plastics and biodiversity, and evaluates them with scores ranging from "A" to "D-". These evaluation results are widely used as important indicators for investors' ESG investment decisions and for major companies' supplier evaluations within their supply chains. About SEA SEA is a system by which CDP evaluates companies' efforts in climate change countermeasures within their supply chains. Based on the responses provided to CDP, it comprehensively assesses collaboration with suppliers, understanding and management of Scope 3 emissions, target setting, and governance. Companies receiving the highest rating are listed on the "SEA Leaderboard" and are recognized as companies with excellent supply chain initiatives in climate change countermeasures. For details, please visit Supplier Engagement Assessment - CDP Message from the Officer in Charge of Sustainability Yoshikazu Suyama, Senior Managing Executive Officer and Director As a company that supports society through electrical measurement, HIOKI fulfills its responsibilities and promotes sustainability