Chang Hwa Commercial Bank announced change of financial officer (S.V.P & Division Head of Treasury Division). 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. Date of occurrence of the change: May 11, 2023.

Name, title, and resume of the previous position holder: Chih-Chen Hsu(Executive Vice President & Division Head of Treasury Division). Name, title, and resume of the new position holder: Yu-Li Teng (Deputy Division Head of Treasury Division & Section Chief of Treasury Products Section). Type of the change: position adjustment.

Effective date: May 15, 2023.