- CEO
- Hidehito Takahashi
- Full Time Employees
- 23,936
- Sector
- Basic Materials
- Industry
- Chemicals
- Address
- 13-9, Shiba Daimon 1-Chome Tokyo Japan 105-8518
- IPO Date
- Aug 3, 2012
- Business
- Resonac Holdings Corporation operates as a holding company overseeing the production and sale of advanced chemical, electronic, and materials products through its primary subsidiary, Resonac Corporation. The company offers a diverse portfolio including petrochemicals such as olefins, organic chemicals, and synthetic resins; chemicals encompassing functional polymers, industrial gases, basic chemicals, information electronic chemicals, and coating materials; electronics products like semiconductors, compound semiconductors, silicon carbide epitaxial wafers, hard disk media, and lithium-ion battery materials including vapor-grown carbon fiber additives, aluminum laminate films, and conductive materials; inorganics such as graphite electrodes, ceramics, abrasives, refractories, and artificial graphite powder; aluminum products including high-purity foil for capacitors, cylinders for laser printers, extruded and forged components, heat exchangers, and beverage cans; mobility solutions like automotive plastic molded products, friction materials, and CASE-related components; innovation-enabling materials including functional chemicals, resins, ceramics, and aluminum functional components; as well as high-purity gases, vinyl ester resins, functional monomers, cosmetic raw materials, and hydrophilic macromolecules. Founded in 1939 through the establishment of Showa Denko K.K., the company is headquartered in Tokyo, Japan, at Tokyo Shiodome Bldg., 1-9-1 Higashi-Shimbashi, Minato-ku, and maintains global operations across Asia including Japan and China, North America, and Europe. In January 2023, Showa Denko K.K. and Showa Denko Materials Co., Ltd. (formerly Hitachi Chemical Co., Ltd.) merged to form Resonac Holdings Corporation and Resonac Corporation; in 2025, the company spun off its petrochemical business to create Crasus Chemical Inc., announced the transfer of its automotive molded parts business in Japan and Thailand via absorption-type splits and share transfers, entered a definitive agreement to sell FIAMM Energy Technology to AURELIUS Private Equity, launched the US-JOINT consortium with ten partners including KLA, Kulicke & Soffa, and others for next-generation semiconductor back-end process R&D in Silicon Valley with operations starting in 2025, received the 2025 TSMC Excellent Performance Award for advanced packaging materials and high-purity gas localization, integrated Gelpack into the Shodex HPLC brand, partnered with Lotte Chemical for gasification-based recycling of used plastic packaging starting full operations in October 2025, and advanced sustainability initiatives including SBT certification for GHG reductions, establishment of Sustainability Advisors, and selection as SX Brand 2025.