ACON Holding Inc. announced the change of principal accounting officer and principal accounting officer of the company. Name, title, and resume of the previous position holder: Lai, Yi-Lin /Assistant Vice President /principal financial officer and principal accounting officer of the Company. Name, title, and resume of the new position holder: principal financial officer: Lin, Jen-sen /Assistant Vice President /TOPLUS GLOBAL CO., LTD. financial officer principal accounting officer:Chen, Chi-Wei /Manager /Manager of Accounting Department of the Company.

Effective date is June 30, 2023.