Sinochem Holdings Announces Dividend Benchmark Date and Adjusts Dividend Rate

Release Date: July 7, 2026 Statement Date: July 6, 2026 Statement Time: 17:42:30 Company Code: 3716 Company Name: Sinochem Holdings Subject: Announcement of Chairman-Set Dividend Benchmark Date and Adjustment of Dividend Rate Applicable Clause: Clause 14 Factual 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. Ordinary Share Dividend Type and Amount: (1) Original Dividend Type and Amount: Cash dividend from earnings: NT$145,829,540 Dividend per share: NT$1.00000000 (2) Adjusted Dividend Type and Amount: Cash dividend from earnings: NT$145,829,540 Dividend per share: NT$1.00373053 4. Ex-Dividend Trading Date: July 23, 2026 5. Final Transfer Date: July 24, 2026 6. Start Date of Transfer Suspension: July 27, 2026 7. End Date of Transfer Suspension: July 31, 2026 8. Ex-Dividend Benchmark 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 20, 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 Foreign Exchange Rate for Foreign Cash Dividend: Not applicable 17. Other Matters to be Clarified: Due to the company's repurchase of treasury shares, the number of shares outstanding has changed, thus the dividend payout rate has been adjusted accordingly.