Resonac Holdings Corporation is a Japanese chemical and advanced materials company headquartered in Tokyo. Formerly known as Showa Denko K.K., the company adopted the Resonac name in January 2023 following the integration of Showa Denko and Showa Denko Materials, formerly Hitachi Chemical.
Resonac develops and manufactures materials used in semiconductors, electronic components, automobiles, energy storage and industrial applications. Its products include semiconductor packaging materials, molding compounds, die-attach films, copper-clad laminates, polishing materials and other materials used in chip manufacturing. The company also produces graphite electrodes, carbon products, battery materials, specialty chemicals and petrochemical products.
Through its operations and subsidiaries, Resonac serves customers in Japan and international markets across Asia, North America, Europe and other regions. Its business is organized around advanced semiconductor and electronic materials, chemicals and related functional materials. Hidehito Takahashi serves as the company’s representative director, president and chief executive officer.
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