ASE Technology Holding (3711) Announces NT$17.5 Billion Cash Dividend

Announcement Date: 115/05/25 Company Code: 3711 Company Name: ASE Technology Holding Co., Ltd.

Subject: Announcement of the resolution by the board of directors of subsidiary ASE Semiconductor Manufacturing Co., Ltd. regarding the ex-dividend date and payment date.

1. Date of Board of Directors meeting: 115/05/25 2. Dividend Type: Cash dividend 3. Type and amount of dividends: A total of NT$17,500,000,000 will be distributed as shareholder dividends, paid entirely in cash to the sole shareholder, ASE Technology Holding Co., Ltd. 4. Ex-dividend date: 115/07/28 5. Cash dividend payment date: 115/07/29