JSR Corporation (Head Office: Minato-ku, Tokyo; Representative Director, CEO, President Officer: Tetsuro Hori; hereinafter “JSR”) has transferred a portion of its Yokkaichi Plant site and its elastomer product logistics business to ENEOS Materials Corporation (Head Office: Minato-ku, Tokyo; Representative Director and President: Satoshi Shiga; hereinafter “ENEOS Materials”) to promote structural reform and operational efficiency improvements in both companies.

Since transferring the elastomers business to ENEOS Corporation in 2022, we have maintained various contracts and partnerships to ensure the smooth and efficient operation of both companies. As we enter the fifth year from the transfer of the elastomers business, we have reviewed the roles and collaborations together with ENEOS Materials.

・Transfer of a portion of the Yokkaichi Plant site

In consideration of operational efficiency of land use, a portion of the land for production facilities at the Yokkaichi Plant operated by ENEOS Materials was transferred from JSR to ENEOS Materials in October 2025. All related land subdivision registration procedures have been completed.

・Transfer of logistics operations for elastomer products

JSR Logistics & Customer Center Co., Ltd. (J-LACC), a wholly owned subsidiary of JSR, had been providing logistics as well as order entry and invoicing services for elastomer products supplied to ENEOS Materials. We entered into a business transfer agreement for these operations in November 2025. The contracted services concluded at the end of fiscal year 2025, and today we have completed the transfer of these functions to ENEOS Materials.

In addition, transfer of rubber sales business for electronics industry to ENEOS Materials, announced on February 27, 2026, was also carried out as part of both companies’ structural reforms and efforts to improve operational efficiency.

Notice Regarding Transfer of Rubber Sales Business for Electronics Industry

We will continue to work on strengthening our business foundation and enhancing corporate value to earn and maintain the trust of all our stakeholders.