| October 29, 2025 | 
           Decision to Install Facilities such as EV Quick Chargers in Yakushima Town | 
        
        
          | October 29, 2025 | 
           Adoption of Volcanic Sediment “SHIRASU” from Kagoshima Prefecture for Private Construction in Yakushima Town | 
        
        
          | October 28, 2025 | 
           Notice Regarding Acquisition of Ready-Mixed Concrete Business Assets from Vulcan Materials Company | 
        
        
          | October 17, 2025 | 
           Announcement of the Publication of "Taiheiyo Cement Report 2025" (Integrated Report) | 
        
        
          | September 25, 2025 | 
           Notice Concerning Results of Tender Offer for Shares of Pacific Systems Corporation (Securities Code: 3847) | 
        
        
          | September 8, 2025 | 
           Nacode Corporation Commences Solar Panel Recycling Business | 
        
        
          | August 19, 2025 | 
           Received an Order for Core Equipment Renovation Work and Operation Project for the Ecocement Facility | 
        
        
          | August 19, 2025 | 
           Notice Concerning Completion of Payment for Disposal of Treasury Shares as Restricted Stock Compensation | 
        
        
          | August 8, 2025 | 
           Notice Concerning Commencement of Tender Offer for Shares of Pacific Systems Corporation (Securities Code: 3847) | 
        
        
          | August 7, 2025 | 
           Consolidated Financial Results for the Three Months Ended June 30, 2025 | 
        
        
           | 
           *Reference Materials | 
        
        
          | August 4, 2025 | 
           Launch of Japan's First AI-Powered Ship Allocation Optimization System in the Cement Industry | 
        
        
          | August 4, 2025 | 
           Taiheiyo Cement Corporation and Kyuden Mirai Energy Corporation have signed an Off-Site Power Purchase Agreement ("PPA") | 
        
        
          | July 22, 2025 | 
           Notice Concerning Disposal of Treasury Shares as Restricted Stock Compensation | 
        
        
          | July 16, 2025 | 
           Taiheiyo Cement has been selected as the "Supplier Engagement Leader", the highest rating in the "Supplier Engagement Rating" by CDP for the second consecutive year | 
        
        
          | June 10, 2025 | 
           Taiheiyo Cement announces establishing blended cement export hub at Saiki Ash Center | 
        
        
          | June 4, 2025 | 
           Low-carbon concrete products using "CARBOCATCHⓇ" technology were adopted for public works | 
        
        
          | May 29, 2025 | 
           NOTICE OF THE 27th ORDINARY GENERAL MEETING OF STOCKHOLDERS AND MATERIALS OF THE MEETING | 
        
        
          | May 28, 2025 | 
           (Correction/Correction of Numerical Data) "Consolidated Financial Results for the Fiscal Year Ended March 31, 2025[Japanese GAAP]" and " Reference Materials of Financial Results for the Fiscal Year Ended March 31, 2025" | 
        
        
          | May 22, 2025 | 
           Summary of Explanation and Q&A on Briefing Session for the Fiscal Year Ended March 31, 2025 | 
        
        
          | May 20, 2025 | 
           Notice Concerning Dividends of Surplus | 
        
        
          | May 14, 2025 | 
           [Notice]Publication of Business Overview Explanation Materials at Financial Results Briefings Session | 
        
        
          | May 13, 2025 | 
           Consolidated Financial Results for the Fiscal Year Ended March 31, 2025 | 
        
        
          |   | 
           *Reference Materials | 
        
        
          | May 13, 2025 | 
           Notice regarding production and sales of "Portland Blast Furnace Slag Cement Type C", a low-carbon blended cement that reduces carbon footprint by approximately 65% | 
        
        
          | May 13, 2025 | 
           CO2 uptake by interlocking paver blocks using CARBOFIXⓇ cement, a CO2-absorbing/cured cementitious material, reported to the United Nations | 
        
        
          | April 11, 2025 | 
           [Notice]Sustainability Briefing Materials with Script | 
        
        
          | April 11, 2025 | 
           [Notice]Sustainability Briefing Q&A | 
        
        
          | April 4, 2025 | 
           [Notice]Sustainability Briefing Materials | 
        
        
          | April 1, 2025 | 
           Taiheiyo Cement has formulated the "Taiheiyo Cement Group Human Rights Policy" as well as the Procurement Policy and the Supplier Code of Conduct of our Group | 
        
        
          | March 28, 2025 | 
           Utilizing Carbon Dioxide Captured from a Cement Plant for Horticultural Applications | 
        
        
          | March 26, 2025 | 
           Notice regarding the status and conclusion of share repurchase(share repurchase pursuant to the Articles of Incorporation based on Article 165, Paragraph 2 of the Companies Act) | 
        
        
          | March 25, 2025 | 
           Support for Disaster Victims and Areas Affected by the Forest Fire in Ofunato City, Iwate Prefecture | 
        
        
          | March 12, 2025 | 
           Increase in Initial Salary for New Graduates | 
        
        
          | March 10, 2025 | 
           Taiheiyo Cement is Recognized as a "Outstanding Organization of KENKO Investment for Health" for Three Consecutive Years | 
        
        
          | March 10, 2025 | 
           Taiheiyo Cement received Medal with Dark Blue Ribbon for supporting university and high school students to study abroad | 
        
        
          | March 4, 2025 | 
           Notice regarding the status of share repurchase(share repurchase pursuant to the Articles of Incorporation based on Article 165, Paragraph 2 of the Companies Act) | 
        
        
          | February 28, 2025 | 
           Notice Concerning Shares Acquisition of TOYO WHARF & WAREHOUSE CO., LTD. (Securities Code: 9351) | 
        
        
          | February 28, 2025 | 
           Taiheiyo Cement Obtains the Highest DBJ Environmental Rating for the Ninth Consecutive Year. | 
        
        
          | February 25, 2025 | 
           Notice Concerning Organizational Changes | 
        
        
          | February 25, 2025 | 
           Notice Regarding Changes of Executives | 
        
        
          | February 18, 2025 | 
           Announcement of "Multi-Stakeholder Policy" | 
        
        
          | February 12, 2025 | 
           Consolidated Financial Results for the Nine Months Ended December 31, 2024 | 
        
        
          |   | 
           *Reference Materials | 
        
        
          | February 4, 2025 | 
           Notice regarding the status of share repurchase(share repurchase pursuant to the Articles of Incorporation based on Article 165, Paragraph 2 of the Companies Act) | 
        
        
          | January 17, 2025 | 
           Jointly Awarded for Excellence in the Technical Development Category in the 8th Infrastructure Maintenance Awards from the Ministry of Land, Infrastructure, Transport and Tourism of Japan | 
        
        
          | January 7, 2025 | 
           Notice regarding the status of share repurchase(share repurchase pursuant to the Articles of Incorporation based on Article 165, Paragraph 2 of the Companies Act) | 
        
        
          | January 6, 2025 | 
           Taiheiyo Cement Selected for the Dow Jones Sustainability Asia Pacific Index | 
        
        
          | January 6, 2025 | 
           Acquisition of Aggregate and Ready-mixed Concrete Businesses by CalPortland Company, U.S.A. |