Chief Telecom Inc. announces the changes to the principal financial officer and principal accounting officer and corporate governance officer of the company. Name, title, and resume of the previous position holder: PAN, WEI-TUNG /Vice President Finance Div. of Chief Telecom Inc. Name, title, and resume of the new position holder: HSIAO, MING-SSU /Assistant Manager of Accounting Department of Chunghwa Telecom Inc. Reason for the change: Post adjustment within the company group.

Effective date: May 2, 2024. The company?s board of directors on April 25,2024 resolved that HSIAO,MING-SSU will assume the position of financial and accounting principal officer and corporate governance officer starting from May 2, 2024.