Announce the change of financial officer 20260324

Material Information (3006 ESMT)
SEQ_NO	1	Date of announcement	2026/03/24	Time of announcement	15:02:56
Subject	Announce the change of financial officer
Date of events	2026/03/24	To which item it meets	paragraph 8
Statement	1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives): Financial officer 2.Date of occurrence of the change:2026/03/24 3.Name, title, and resume of the previous position holder: Hui-Wen Cheng:Senior Director 4.Name, title, and resume of the new position holder: Kuan-Chun Chang:Senior Vice President 5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):Resignation 6.Reason for the change:The BOD has approved the appointment of Kuan-Chun Chang as the financial officer. 7.Effective date:2026/03/24 8.Any other matters that need to be specified:None

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