1103 Kiasi Cement Announces Cash Dividend Record Date for 2025 and Adjusts Payout Rate

Release Date: July 7, 2026 Statement Date: July 6, 2026 Statement Time: 17:16:20 Company Code: 1103 Company Name: Kiasi Cement Co., Ltd. Subject: Announcement of Record Date for 2025 Cash Dividend and Adjustment of Cash Dividend Payout Rate Applicable Clause: Clause 14 Event Date: July 6, 2026

Details: 1. Date of Board, Shareholders' Meeting Resolution or Company Decision: July 6, 2026 2. Type of Ex-Rights/Ex-Dividend (please enter 'Ex-Rights', 'Ex-Dividend', or 'Ex-Rights and Ex-Dividend'): Ex-Dividend 3. Type and Amount of Ordinary Share Dividend: Original Cash Dividend and Amount: NT$433,770,402, with a cash dividend of NT$0.55 per share. Revised Cash Dividend and Amount: NT$433,770,402, with a cash dividend of NT$0.52179732 per share. 4. Ex-Dividend Trading Date: July 23, 2026 5. Last Transfer Date: July 26, 2026 6. Start Date of Transfer Suspension: July 27, 2026 7. End Date of Transfer Suspension: July 31, 2026 8. Ex-Dividend Record Date: July 31, 2026 9. Final Date for Bond Conversion Application: Not applicable 10. Start Date of Bond Conversion Suspension: Not applicable 11. End Date of Bond Conversion Suspension: Not applicable 12. Ordinary Share Cash Dividend Payment Date: August 21, 2026 13. Whether Part or All of the Cash Dividend is Paid in Foreign Currency (please enter 'Yes' or 'No'): No 14. Currency for Foreign Cash Dividend: Not applicable 15. Recipients of Foreign Cash Dividend: Not applicable 16. Method for Determining Exchange Rate for Foreign Cash Dividend: Not applicable 17. Other Matters to be Disclosed: The company's 2026 Annual General Meeting on May 22, 2026, approved the distribution of profits for the 2025 fiscal year, declaring a cash dividend of NT$0.55 per share. The Chairman was authorized to adjust the payout ratio and determine the record date and payment schedule. However, due to the announcement on June 26, 2026, regarding the share exchange and listing of minority shareholders' shares in Chia Hsin International Co., Ltd., the number of outstanding shares eligible for dividend distribution changed, resulting in an adjustment of the cash dividend to NT$0.52179732 per share.