[Kaohsiung Bank] Announcement of Unaudited Financial Results for May 2026

1. Date of Fact Occurrence: 115/06/09 2. Company Name: Kaohsiung Bank Co., Ltd. 3. Relationship with the Company (Enter 'Parent Company' or 'Subsidiary'): Parent Company 4. Proportion of Mutual Shareholding: Not Applicable 5. Reason for Occurrence: Announcement of the company's unaudited financial results for May of year 115.

Unit: NT$ Thousand Current Month Accumulated ═════════════════════════════════════ Profit Before Tax 150,299　　　 　 757,624 Profit After Tax 121,285 603,462 Earnings Per Share Before Tax (NT$) 0.39 Earnings Per Share After Tax (NT$) 0.31 ═════════════════════════════════════ (Note) The above figures are self-calculated amounts by the company. 6. Countermeasures: None 7. Other Matters to be Noted (If the subject of the event occurrence or resolution is a publicly issued company or above, and this major information also meets the criteria of Article 7, Paragraph 9 of the Regulations Governing the Tender Offer for Securities of Public Companies, which significantly affects shareholders' equity or securities prices): None Keywords: Major Information