Nippon Zeon Selected as Constituent for SOMPO Sustainability Index 2026

Nippon Zeon Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Tetsuya Toyoshima; hereinafter referred to as "Zeon") is pleased to announce its selection as a constituent for the "SOMPO Sustainability Index" for fiscal year 2026, managed by SOMPO Asset Management Co., Ltd.

This index is an active index composed of approximately 300 companies with superior ESG (Environmental, Social, and Governance) ratings, constructed by combining evaluations based on "Environmental Management Survey" and "ESG Management Survey" by SOMPO Risk Management Inc. with equity value assessments. It is utilized for long-term oriented investments in responsible investment for pension funds and institutional investors.

Under its corporate philosophy, "Contributing to the eternal earth and the prosperity of humankind," Zeon promotes sustainability management, including responses to climate change and resource circulation. We recognize this selection as an acknowledgment of these initiatives and will continue to address social issues and enhance corporate value through our business activities.