Cathay Real Estate Development - Announcement on behalf of important subsidiary Mitsui Engineering Co., Ltd. regarding ex-dividend record date for 2025 cash dividends

1. Date of Board of Directors' resolution or shareholders' meeting resolution or company decision: 115/05/06 2. Type of ex-rights or ex-dividend (please fill in "ex-rights", "ex-dividend" or "ex-rights and ex-dividend"): ex-dividend 3. Type and amount of dividends to be distributed: Cash dividend of NTD 8.4 per share, with a total distribution of NTD 1,008,000,000 4. Ex-rights (ex-dividend) trading date: 115/05/20 5. Last day for share transfer: 115/05/21 6. Beginning date of book closure: 115/05/22 7. Ending date of book closure: 115/05/26 8. Ex-rights (ex-dividend) record date: 115/05/26 9. Other matters that should be specified: Estimated cash dividend payment date: 115/05/29