Company news
Adeka Corporation (TSE:4401) news
Every Adeka Corporation press release and news update in one place — announcements, filings coverage, and company updates for investors.
Press releases & updates
ADEKA : Establishes New Manufacturing Plant for TRANSPAREX™ New Ultimate Performance Novel Clarifier in South Korea
August 24, 2026
ADEKA : Expands Production Capacity for Photoacid Generators Used in Advanced Photoresists for EUV Lithography- Responding to Strong EUV Demand and Accelerating PAG Monomer Scale-Up
August 20, 2026
Adeka : Selected as a Constituent of the "JPX-Nikkei Index 400" for the Fourth consecutive year
August 17, 2026
Summary of Consolidated Financial Results for the Three Months Ended June 30, 2026[Japanese GAAP]
August 7, 2026
Notice of Completion of Payment for Disposal of Treasury Stock as Restricted Stock Awards
July 17, 2026
Notice of Disposal of Treasury Shares as Restricted Stock Compensation
June 19, 2026
Notice regarding the Decisions on Scheduled Date of Cancellation of Own Shares
June 12, 2026
Notice regarding Progress and Completion of Acquisition of Own Shares
June 2, 2026
Adeka : Our Consolidated Subsidiary (NIHON NOHYAKU CO., LTD.) Announced Settlement of Litigation
January 5, 2026
Adeka : Construction of a New Plant for Organometallic Compounds for MOR used of Next-Generation EUV Lithography
October 30, 2025
Adeka : Publish ADEKA Report 2025 and SUSTAINABILITY DATA BOOK 2025
October 30, 2025
Adeka : Notice regarding Result of Acquisition of Own Shares through Off-Auction Own Share Repurchase Trading System (ToSTNeT-3)
August 11, 2025
Adeka : Notice regarding the Decisions on Matters Pertaining to Acquisition of Own Shares and the Decisions on Matters Pertaining to Cancellation of Own Shares
August 8, 2025
Adeka : Notice regarding Purchase of Own Shares Through Off-Auction Own Share Repurchase Trading System (ToSTNeT-3)
August 7, 2025
Adeka : Our Consolidated Subsidiary (NIHON NOHYAKU CO., LTD.) announced the Judgment of the lawsuit and the decision to appeal
June 24, 2025
Adeka : Notice Regarding the Receipt of Written Withdrawal of Shareholder Proposals by Our Consolidated Subsidiary (NIHON NOHYAKU CO., LTD.)
May 23, 2025
Adeka : Notice Regarding the Board of Directors' Opinion on Shareholder Proposal
May 13, 2025
Adeka : Notice Regarding the Board of Directors' Opinion on Shareholder Proposal by Our Consolidated Subsidiary (NIHON NOHYAKU CO., LTD.)
May 13, 2025
Adeka : Notice Regarding Shareholder Proposal to Our Consolidated Subsidiary (NIHON NOHYAKU CO., LTD.)
April 16, 2025
Adeka : Updated "ADEKA Group Corporate Governance Guideline"
January 26, 2025
Adeka : Notice of revision of consolidated financial forecast and distribution of dividends from Surplus (interim dividend) and the year-end dividend forecast (dividend increase)
November 11, 2024