Dividend distribution

2.Type and monetary amount of original dividend distribution：
Earnings distribution cash dividend:NT$592,483,612 (NT$7.6per share)

3.Type and monetary amount of dividend distribution after the change：
Earnings distribution cash dividend:NT$592,483,612 (NT$7.69875469per share)

4.Reason for the change：Due to the company’s treasury stock repurchase, which affected the number of outstanding shares, the chairman is authorized to adjust the dividend per share rate for shareholders in accordance with the resolution of the board of directors on 2026/02/25.

5.Any other matters that need to be specified：
The company’s cash dividend for the first half of 2025 was NT$6.6 per share, distributed on 2026/01/30.
The cash dividend for the second half of 2025 is NT$7.69875469 per share, expected to be distributed on 2026/07/30.