[ASE Holding] Announcement of Elected Directors and Independent Directors for Subsidiary USI

1. Date of Change: 2026/04/24 2. Personnel Category: Directors and Independent Directors. 3. Former Directors: (1) Chen Chang-yi (Jerry Chen), (2) Chang Dan Yao Danielle, (3) Wei Chen-yen, (4) Wang Tu-tsun, (5) Neng Chao Chang, (6) Yifan Li, (7) Andrew Robert Tang. 4. Former Independent Directors: (1) Cang Yongtao, (2) Huang Jiangdong, (3) Guo Wei, (4) Zhang Li. 5. Newly Elected Directors: (1) Chen Chang-yi, (2) Chang Dan Yao Danielle, (3) Wei Chen-yen, (4) Wang Tu-tsun, (5) Neng Chao Chang, (6) Andrew Robert Tang, (7) Shi Jinpeng (Employee Representative). 6. Newly Elected Independent Directors: (1) Cang Yongtao, (2) Guo Wei, (3) Zhang Li. 7. Reason for Change: Term expiration. 8. Effective Date: 2026/04/24. 9. Note: Former Independent Director Huang Jiangdong was not re-elected but will continue duties until a successor is confirmed.