Asahi Kasei announces that the Oita Plant of Japan Elastomer Co., Ltd., a joint venture between Asahi Kasei and Crasus Chemical Inc., received a Platinum Medal Sustainability Rating, the highest rating available, from EcoVadis¹ in October 2025. The Platinum Medal indicates a sustainability assessment in the top 1% of all companies evaluated. This is the second time for Japan Elastomer to obtain the Platinum rating, following that in 2023.
EcoVadis assesses corporate initiatives and achievements on sustainability in four themes of the Environment, Labor & Human Rights, Ethics, and Sustainable Procurement. Our evaluation was particularly high in the Environment and Labor & Human Rights.
EcoVadis performs its assessment based on international standards of sustainability, and over 150,000 companies from more than 180 countries across 200 industries have been assessed. The EcoVadis assessment is increasingly recognized as an objective evaluation of corporate sustainability initiatives and achievements.
As the Asahi Kasei Group continues to advance initiatives for sustainability, this Platinum Medal rating serves as an encouragement to further reinforce efforts to achieve a sustainable society.
About Japan Elastomer Co., Ltd.
Establishment
August 21, 1972
Address
1-1-2 Yurakucho, Chiyoda-ku, Tokyo, Japan
President
Masayoshi Iwasa
Ownership interest
Asahi Kasei 75%, Crasus Chemical 25%
Operations
Manufacture of synthetic rubber and TPE products