[Taiwan Cement] Announcement on the Company's Acquisition of Right-of-Use Assets from a Related Party

1. Name and nature of the subject matter (e.g., land parcel XX, section XX, subdivision XX in North District, Taichung City): Jiali Enterprise Co., Ltd. Land location: 5 parcels including Shanling Section, Zhongli City, parcel 429, etc., and a building with an area of 624.41 ping. 2. Date of occurrence of the event: 2026/5/13~2026/5/13 3. Date of board of directors' approval: May 13, 2026 4. Other approval dates: Not applicable 5. Quantity of trading units (e.g., XX square meters, equivalent to XX ping), price per unit, and total transaction amount: Quantity of trading units: Land area approximately 3,525.46 ping in total, and a building with an area of 624.41 ping. Price per unit: Annual rent not exceeding NTD 15,224 thousand (tax included). Amount of right-of-use assets: Approximately NTD 68,864 thousand. 6. Counterparty to the transaction and its relationship with the company (if the counterparty is a natural person and not a related party of the company, disclosure of their name may be omitted): Counterparty: Jiali Enterprise Co., Ltd. Relationship with the company: Related party 7. If the counterparty to the transaction is a related party, the reasons for selecting the related party as the transaction object, the previous owner of the asset, the relationship between the previous owner, the company, and the counterparty, the date of the previous transfer, and the transfer amount should also be announced: Reason for selecting a related party as the transaction object: To meet the lessee's operational needs. 8. If the owner of the transaction subject has been a related party of the company within the past five years, the acquisition and disposal dates and prices of the related party, and their relationship with the company at the time of the transaction, should also be announced: Not applicable 9. Estimated disposal gain (or loss) (not applicable for asset acquisition) (deferred items should be listed and explained for recognition): Not applicable 10. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Lease term from June 2026 to May 2031, for 5 years. 11. Method of determining this transaction (e.g., bidding, comparison, or negotiation), reference basis for price determination, and decision-making unit: Reference basis for price determination: Valuation report issued by professional appraisers Decision-making unit: Resolved by the company's board of directors 12. Name of professional appraiser firm or company and its appraisal amount: (1) Zhanji Real Estate Appraisers Joint Firm, Zhang Zhiming (2) Zhengyi Real Estate Appraisers Firm, Lin Minghong 13. Name of professional appraiser: (1) Zhang Zhiming, Zhanji Real Estate Appraisers Joint Firm (2) Lin Minghong, Zhengyi Real Estate Appraisers Firm 14. Professional appraiser's license number: (1) Zhang Zhiming, (94) Xinbei Appraiser No. 000016 (2) Lin Minghong, (95) Taipei City Appraiser No. 000089 15. Is the appraisal report for a limited price, specific price, or special price: No or not applicable 16. Has the appraisal report not yet been obtained: No or not applicable 17. Reason why the appraisal report has not yet been obtained: Not applicable 18. If there is a material difference in the appraisal results, the reason for the difference and the auditor's opinion: Not applicable 19. Name of accounting firm: Not applicable 20. Name of accountant: Not applicable 21. Accountant's license number: Not applicable 22. Broker and brokerage fees: Not applicable 23. Specific purpose or use of the acquisition or disposal: Operational needs 24. Opinions of directors who expressed dissenting opinions on this transaction: None 25. Is this transaction a related-party transaction: Yes 26. Date of approval by supervisors or audit committee: May 13, 2026 27. Is this transaction for the acquisition of real estate or its right-of-use assets from a related party: Yes 28. Price evaluated according to Article 16 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies": Not applicable 29. If the price evaluated in the preceding paragraph is lower than the transaction price, the price evaluated according to Article 17 of the same regulations: Not applicable 30. Date of previous material information announcement for the same event: Not applicable 31. Other matters that should be stated: None