NewsNotice Concerning Decision on Matters Relating to Share Acquisition for the Share-Based Remuneration System

NewsNotice Regarding Recognition of Extraordinary Loss

NewsNotice Regarding Revision of Consolidated Financial Forecasts for the First Half of the Fiscal Year Ending March 31, 2027

NewsFY2026 First Quarter Financial Results Presentation Materials

NewsFY2026 First Quarter Summary of Consolidated Financial Results

NewsNotice of Withdrawal from the DENKA ER Business

NewsDenka Selected for the First Time as a Constituent of Two FTSE JPX Blossom ESG Investment Indice

NewsDenka Completes Investment in Canadian Medical Device Startup Flosonics Medical –Expanding Denka’s initiatives in digital health with a wearable and wireless ultrasound technology for blood-flow assessment–

IR InformationVoting Results(Extraordinary Report)

IR InformationNotice of Resolutions of the 167th Ordinary General Meeting of Shareholders

NewsAwarded “A”—the Highest Possible Rating—for the First Time in CDP’s Supplier Engagement Assessment 2025

IR InformationFY2025 4Q Financial Results Presentation Summary of Q&A Session

IR InformationNotice of Convocation of the 167th Ordinary General Meeting of Shareholders Other Matters Subject to the Electronic Provision

IR InformationNotice of Convocation of the 167th Ordinary General Meeting of Shareholders

NewsManufacturing plant completed for SNECTON®, a low-dielectric organic insulating resin supporting data communications in the 5G and AI era

IR InformationFY2025 Financial Results Presentation Materials with Script

IR InformationNotice Concerning Recording of Extraordinary Income and Losses (Consolidated and Non-consolidated)

IR InformationResults Presentation of FY2025

IR InformationFY2025 Summary of Consolidated Financial Statements

Product InformationPrice Revision for Denka Chloroprene

IR InformationNotice Regarding Results of Tender Offer for Share Certificates, Etc. of KAINOS Laboratories, Inc. (Securities Code: 4556)

IR InformationAnnouncement of Extraordinary Gains (Gain on Sale of Investment Securities)

IR InformationSummary of Q&A Session for Management Presentation on Feb 27 2026

NewsDenka Recognized as a “KENKO Investment for Health Outstanding Organization (large enterprise category ～White 500～)” for the Fourth Consecutive Year

IR InformationNotice Concerning Change in Equity-Method Affiliate (Becoming a Consolidated Subsidiary)

IR InformationPresentation Materials for Management Presentation on Feb 27 2026 with Script

IR Information(Amendment) Notice Regarding Amendment to “Notice Regarding Commencement of Tender Offer for Share Certificates, Etc. of KAINOS Laboratories, Inc. (Securities Code: 4556)” and Public Notice of Commencementof Tender Offer Dueto Filingof Amendment Statement

IR InformationNotice of Formulation of Management Plan “Mission 2030” Phase 2 (FY2026–FY2028)

IR InformationPresentation Material for Management Presentation on Feb 27th 2026

IR InformationNotice of Commencement of Consideration of Spin-off of Styrene-Related Businesses

CSR InformationFirst-time Selection as an Environmentally Sustainable Company at the ESG Finance Awards Japan

IR InformationFY2025 Third Quarter Financial Results Presentation Summary of Q&A Session

IR InformationFY2025 Third Quarter Financial Results Presentation Materials with Script

IR InformationNotice Regarding Commencement of Tender Offer for Share Certificates, Etc. of KAINOS Laboratories, Inc. (Securities Code: 4556)

IR InformationNotice Regarding Recognition of Extraordinary Losses

IR InformationNotice Regarding Personnel Changes in Executive Officers

IR InformationFY2025 Third Quarter Financial Results Presentation Materials

IR InformationFY2025 Third Quarter Summary of Consolidated Financial Results

CSR InformationAwarded “A-” for Climate Change and “A” rating for Water Security in CDP 2025

Product InformationDevelopment of an ESD (endoscopic submucosal dissection) simulator model for early-stage gastrointestinal neoplasms～Results of the third “Medical Rising STAR” industry-academia collaboration project～

NewsPresident's New Year's address (excerpt from New Year's speech)