[Taichung Bank] Announcement of Financial and Business Data for May 2026 (115th Year) of the Company and Subsidiaries

1. Date of occurrence: 115/06/08 2. Company name: Taichung Commercial Bank Co., Ltd. 3. Relationship with the company (please indicate the company or subsidiary): The company 4. Shareholding ratio: Not applicable 5. Reason for occurrence: As per the subject (Unit: NT$ thousand) Item Monthly Profit Year-to-Date -------------- ------------- -------------- Consolidated pre-tax profit/loss 961,264 5,145,913 Consolidated after-tax profit/loss 880,325 4,362,663 Earnings per share (pre-tax) 0.15 yuan 0.80 yuan Earnings per share (after-tax) 0.14 yuan 0.68 yuan 6. Countermeasures: None 7. Other matters to be noted (if the subject of the event or resolution is a public company, this material message also complies with Article 7, Paragraph 9 of the Securities and Exchange Act Enforcement Rules regarding matters that have a material impact on shareholders' equity or securities prices): None