Showa Denko Materials Co., Ltd. was a Japanese advanced materials company formerly known as Hitachi Chemical Co., Ltd. Showa Denko acquired the company in 2020, and it was subsequently integrated into the group’s materials operations. In 2023, Showa Denko changed its corporate name to Resonac Holdings Corporation, and Showa Denko Materials became Resonac Corporation.
The company developed and manufactured functional materials and components for the semiconductor, electronics, automotive, energy and life-science industries. Its products included semiconductor packaging materials, circuit materials, electronic films, battery-related materials, resin and composite products, and materials used in automotive and industrial applications.
Showa Denko Materials served customers in Japan and international markets through manufacturing, research and development, and sales operations across Asia, North America and Europe. Information about the company under the Showa Denko Materials name is primarily historical, as its operations now form part of Resonac’s broader materials business.
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