[Chang Hwa Bank] Announcement of the Company's Consolidated Self-Settled Earnings for May 2026

1.Date of occurrence: 2026/06/08 2.Company name: Chang Hwa Bank 3.Relationship with the company (please enter the company or subsidiary): The company 4.Shareholding ratio: Not applicable 5.Reason for occurrence: Announcement of the company's consolidated self-settled earnings for May 2026. 6.Countermeasures: None 7.Other matters to be stated (if the subject of the event or resolution is a publicly issued company or above, this major message also complies with Article 7, Paragraph 9 of the Securities and Exchange Act Enforcement Rules, which has a material impact on shareholders' equity or securities prices): The company's consolidated pre-tax profit for May 2026 was NT$2.302 billion, consolidated after-tax profit was NT$1.972 billion, cumulative consolidated pre-tax profit was NT$10.712 billion, cumulative consolidated pre-tax EPS was NT$0.91, cumulative consolidated after-tax profit was NT$9.110 billion, and cumulative consolidated after-tax EPS was NT$0.77. The above figures are the company's self-settled amounts.