[Taishin & SK Financial] Announcement by Subsidiary Taishin Bank Regarding Merger Effective Date with SK Bank

1. Factual Date: August 12, 2026 (ROC Year 115) 2. Company Name: Taishin International Commercial Bank Co., Ltd. 3. Relationship with Company (Please enter 'Company' or 'Subsidiary'): Subsidiary 4. Mutual Shareholding Ratio: Not applicable 5. Reason for Occurrence: (1) On June 4, 2026 (ROC Year 115), Taishin Bank publicly announced via board resolution (acting as shareholders' meeting) the merger with SK Bank, in accordance with Article 4 of the 'Taiwan Stock Exchange Corporation Procedures for Verification and Public Disclosure of Material Information by Listed Companies'. (2) Additional Details: Taishin Bank intends to merge with SK Bank through a share issuance merger. Both parties have already passed the merger proposal and merger agreement via board resolution (acting as shareholders' meeting) on June 4, 2026 (ROC Year 115), and have received formal approval from the Financial Supervisory Commission under document number Jinsan Yin-Kong No. 11502214831 dated August 10, 2026 (ROC Year 115). The merger consideration involves Taishin Bank issuing new shares to SK Bank shareholders at an exchange ratio of 0.9505 shares of Taishin Bank common stock for every 1 share of SK Bank common stock. Additionally, if SK Bank records after-tax net profit during the fiscal year preceding the merger effective date and/or from the start of the current fiscal year up to the day before the merger effective date, Taishin Bank shall pay 70% of such after-tax net profit to SK Bank shareholders as contingent cash consideration within six months after the merger effective date. The merger effective date has been jointly established by both chairpersons as January 1, 2027 (ROC Year 116). Should any subsequent change to the effective date become necessary, both boards have already authorized their respective chairpersons or designated representatives to coordinate adjustments and issue follow-up announcements accordingly. 6. Countermeasures: Not applicable 7. Other Matters to Be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this material information also qualifies under Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act as an event having significant impact on shareholder rights or securities prices): None