[CTBC] Subsidiary CTBC Bank's Board of Directors Resolves to Participate in the Dunbei Building Urban Renewal Project in Songshan District

1. Date of occurrence: 2026/05/22 2. Company name: CTBC Bank Co., Ltd. 3. Relationship with the company (enter "Parent" or "Subsidiary"): Subsidiary 4. Mutual shareholding ratio: A subsidiary 100% held by the parent company 5. Reason for occurrence: CTBC Bank Co., Ltd. owns the Dunbei Building in Songshan District (1 land plot at No. 405, Dunhua Section, Songshan District, Taipei City). Following a board of directors' resolution, it intends to participate in the urban renewal of this property. 6. Countermeasures: None 7. Other matters to be specified (if the entity involved in the event or resolution is a public offering company or above, this news fulfills the requirements of Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act regarding material impacts on shareholder equity or securities prices): None