2026.05.26

Nitto Denko Corporation (Headquarters: Osaka, Japan; President: Tatsuya Akagi; "Nitto") and INOAC CORPORATION (Headquarters: Nagoya, Japan; President: Yasushi Nomura; "INOAC") are pleased to announce the transfer of a portion of Nitto's EPDM rubber foam sealing material "NITTO EPTSEALER™" Business ("EPT Business") to INOAC, effective May 22, 2026. The agreement stipulates the transfer of equipment used in the manufacture of closed-cell structure products, and semi-closed cell structure products for general use, within the domestic EPT Business, as well as related technical know-how and trademark rights. Nitto will gradually transfer relevant equipment and distribution channels to INOAC, with completion scheduled by 2030, to avoid disruption of product supply.

1. Background
Nitto and INOAC, in anticipation of the business' future growth through mutual strategic partnership, have decided on the transfer of manufacturing equipment, related technical know-how, trademark rights, and distribution channels of said portion of the EPT Business. This alignment aims to ensure a stable supply and deliver enhanced value to customers of the EPT Business, through INOAC further developing the technologies and know-how cultivated by Nitto over the years.

2. Scope of Transfer
The agreement stipulates the transfer of equipment used in the manufacture of closed-cell structure products, and semi-closed cell structure products for general use, within the domestic EPT Business, as well as related technical know-how and trademark rights. The EPT Business entails the manufacture and sale of EPDM rubber foam sealing material "NITTO EPTSEALER™", primarily used in the automotive and residential housing sectors, that boasts superior water, sound, vibration, and heat resistance, as well as excellent durability and flexibility.

Note: Overseas operations of the EPT Business and semi-closed cell structure products for specialized use are not included in the transfer.

3. Timeline
Transfer of rights to relevant equipment: May 22, 2026
Complete transfer of relevant equipment and distribution channels: Around 2030

About INOAC (INOAC CORPORATION)

INOAC is a leading company in polymer chemistry, specializing in polyurethanes, rubber, plastics, and composite materials. INOAC was the very first to introduce polyurethane foaming technology in Japan and has become a leading innovator of polyurethane technology worldwide. The company develops and produces a wide range of products used in industries closely tied to daily life, including automotive, IT equipment, housing, and consumer products, and is known for its advanced technologies in sound and vibration control, heat resistance, sealing, and filtration.

About Nitto (Nitto Denko Corporation)

Nitto is a global manufacturer of high-performance materials, offering a wide range of products and services, including optical materials such as polarizers for display devices, circuit boards, industrial tapes, and medical-related products. These solutions are built on eight core technologies that have been cultivated since the company's founding in 1918. Guided by its brand slogan, "Innovation for Customers," Nitto strives to deliver essential value to society and contribute to a sustainable global environment and a prosperous human future.

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