【In Win】Announcement of the Board of Directors' Resolution on Dividend Distribution

1. Date of board resolution: 2026/05/07 2. Dividend year (quarter): 2025 Fiscal Year 3. Dividend period: 2025/01/01 to 2025/12/31 4. Shareholder distribution details: (1) Cash dividend from earnings (NTD/share): 0.50000000 (2) Cash from legal reserve (NTD/share): 0 (3) Cash from capital surplus (NTD/share): 1.50000000 (4) Total cash distributed to shareholders (dividends) (NTD): 185,120,823 (5) Stock dividend from earnings (NTD/share): 0 (6) Stock dividend from legal reserve (NTD/share): 0 (7) Stock dividend from capital surplus (NTD/share): 0 (8) Total shares distributed to shareholders (shares): 0 5. Other matters to be specified: (1) If, due to changes in laws or approval by the competent authority, the company's outstanding common shares fluctuate (e.g., conversion of convertible corporate bonds), affecting the number of outstanding shares, and thus changing the shareholder cash/stock dividend ratio, the chairman is authorized to handle and adjust this matter at his sole discretion. (2) The chairman is authorized to set the ex-dividend record date, dividend payment date, and related operational matters for this cash dividend distribution. 6. Common stock par value: NT$10.0000 per share