Taibo Announces Expiration of Second Treasury Share Repurchase Period and Execution Status

1. Original upper limit of total amount for share repurchase (NT$): 7,887,950,115 2. Original planned repurchase period: 2026/03/12~2026/05/11 3. Original planned repurchase quantity (shares): 2,500,000 4. Original planned repurchase price range (NT$): 92.00~180.00 5. Actual repurchase period: 2026/04/07~2026/05/06 6. Actual shares repurchased (shares): 1,334,000 7. Total amount actually repurchased (NT$): 169,141,016 8. Average price per share repurchased (NT$): 126.79 9. Cumulative number of own company shares held (shares): 1,334,000 10. Cumulative percentage of own company shares held to total issued shares (%): 1.40 11. Reason for not executing in full: To maintain shareholder interests and consider market mechanisms, the company executed phased repurchases based on stock price changes and trading volume, thus it was not fully executed. 12. Other matters to be disclosed: None.