Announcement of the expiration of the period and execution status of the company's repurchase of treasury shares.

Date of events ：2025/10/09

I.        Originally prescribed ceiling on total monetary amount of share repurchase (NTD)：2,073,681,922

II.      Originally scheduled period for the repurchase：2025/08/11~2025/10/10

III.    Originally determined no. of shares to be repurchased (shares)：1,000,000

IV.   Originally determined repurchase price range (NTD)：85.00~150.00

V.     Actual period of the current repurchase：2025/08/12 ~2025/10/09

VI.   No. of shares currently repurchased (shares)：828,000

VII. Total monetary amount of shares currently repurchased (NTD)：109,758,079

VIII.     Current average repurchase price per share (NTD)：132.56

IX.   Cumulative no. of the company’s own shares held (shares)：828,000

X.     Cumulative no. of the company’s own shares as a percentage of the total no. of the company’s issued shares (%)：1.24

XI.   Reason for non-completion of the current share repurchase：In order to maintain shareholder rights and consider market mechanisms, the company repurchased the shares in separate batches according to stock price changes and trading volume conditions. Therefore, the announced shares repurchase plan has not been fully executed.

XII. Any other matters that need to be specified：None.