Showa Denko was reborn as Resonac on Jan.1, 2023

On January 1, 2023, Showa Denko K.K. and Showa Denko Materials Co., Ltd. merged and transformed themselves into newly integrated company "Resonac". Resonac Group positions the launch of the newly integrated company as "the second inauguration," aiming to become a world-leading chemical company with advanced functional materials through further transformation efforts.

New Company Names

  • Resonac Holdings Corporation: a holding company, former Showa Denko K.K.
  • Resonac Corporation: an operating company, former Showa Denko Materials Co., Ltd.


Our hope put into the name and new logo



The Newly Integrated Company Resonac defines its purpose as "Change society through the power of chemistry." To achieve technological innovation for solving various social issues, however, it is essential for us to make wide-ranging co-creative efforts with partners. As a "Co-creative Chemical Company," Resonac will aim at ensuring sustainable growth and enhancing enterprise value through such co-creative efforts.
 The name "Resonac" was created as a combination of the word "Resonate" and "C" as the first letter of "Chemistry." We put into this name our hope that the Group's wide-ranging and flexible advanced material technologies will be connected and resonate with our partners' various technologies and ideas to realize bright future, and the resonance will spread further to meet new partners, thereby creating a powerful surge that changes society.


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