[Cathay Real Estate] Supplemental Announcement: Board Resolution to Convene the 2026 Annual General Meeting

1. Date of Board Resolution: 2026/04/27 2. Date of Shareholder Meeting: 2026/06/12 3. Venue of Shareholder Meeting: Lily Hall, 2F, Courtyard by Marriott Taipei Downtown, No. 6, Sec. 3, Minsheng E. Rd., Zhongshan Dist., Taipei City 4. Type of Meeting: Physical meeting 5. Agenda Item 1 (Report Items): (1) 2025 Business Report (2) Audit Committee Review Report (3) 2025 Employee and Director Remuneration Distribution Report 6. Agenda Item 2 (Approval Items): (1) 2025 Business Report and Financial Statements (2) 2025 Earnings Distribution 7. Agenda Item 3 (Discussion and Election Items): (1) Amendment to the 'Procedures for Lending Funds and Endorsements/Guarantees' (2) Election of the 21st Board of Directors (3) Discussion to release the 21st Board of Directors from non-compete restrictions 8. Extemporary Motions: None 9. Book Closure Period Start Date: 2026/04/14 10. Book Closure Period End Date: 2026/06/12 11. Other: Shareholders may exercise voting rights electronically from 2026/05/13 to 2026/06/09 via the TDCC 'Stock e-Services' website [https://stockservices.tdcc.com.tw].