DMT will attend the investor conference that held by President Securities Corporation.

SEQ_NO	1	Date of announcement	2025/08/21	Time of announcement	16:53:01
Subject	DMT will attend the investor conference that held by President Securities Corporation.
Date of events	2025/08/22	To which item it meets	paragraph 12
Statement	1.Date of institutional investor conference:2025/08/22 2.Time of institutional investor conference:3:40 p.m.(Taiwan Time) 3.Location of institutional investor conference:Online investor conference. 4.Outline of institutional investor conference: DMT will attend the investor conference that held by President Securities Corporation on 2025/08/22. 5.Any other matters that need to be specified:None.