[Taiwan Advanced Packaging] Announcement of Expiration of Payment Period for 2025 Cash Capital Increase and Share Allocation Matters

1. Date of Fact Occurrence: 115/04/09 2. Company Name: Taiwan Advanced Packaging Co., Ltd. 3. Relationship with Company (Enter 'This Company' or 'Subsidiary'): This Company 4. Proportion of Mutual Shareholding: Not applicable 5. Reason for Occurrence: The payment period for Taiwan Advanced Packaging's 2025 cash capital increase was from March 9, 115, to April 9, 115, at 3:30 PM. 6. Countermeasures: (1) Shareholders and employees who did not pay the share subscription within the催繳 (payment reminder) period will have their rights lapse as of April 9, 115, at 3:30 PM and will forfeit their rights. (2) For shareholders and employees who paid within the催繳 period, the subscribed shares are expected to be credited to the designated custody accounts on April 22, 115. (3) For any inquiries, please contact the company's stock agency, Fubon Securities Stock Agency Department (Address: 6F, No. 6, Section 1, Zhongxiao West Road, Taipei City, Tel: (02)2371-1658). 7. Other Matters to be Noted (If the subject of the event or resolution is a publicly issued company or above, this material information also meets the criteria of Article 7, Paragraph 9 of the Securities Transaction Act Enforcement Rules regarding significant impact on shareholder rights or stock prices): None.