November 25, 2025 [Notice] Update of sustainability website in conjunction with publication of Integrated Report 2025

November 19, 2025 Summary of Explanation and Q&A on Briefing Session for the Six Months Ended September 30, 2025

November 13, 2025 Participation in EcoPro 2025

November 13, 2025 Taiheiyo Cement×Unko Drill "Construction Material about Cement"

November 12, 2025 【Notice】Publication of Business Overview Explanation Materals at Financial Results Briefing for the Six Months Ended September 30, 2025

November 11, 2025 Consolidated Financial Results for the Six Months Ended September30, 2025
*Reference Materials

November 11, 2025 Notice Regarding the Revision of Financial Results Forecasts for the Fiscal Year Ending March 31, 2026

November 11, 2025 Notice Regarding Disposal of Treasury Shares as Restricted Stock Incentives for the Employee Shareholding Association

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