[Taiwan Mobile] Announcement of Operating Results for May 2026

1. Date of Fact Occurrence: 2026/06/10 2. Company Name: Taiwan Mobile Co., Ltd. 3. Relationship with the Company (Enter "Parent Company" or "Subsidiary"): Parent Company 4. Proportion of Mutual Shareholding: Not applicable 5. Reason for Occurrence: Not applicable 6. Countermeasures: Not applicable 7. Other Matters to be Noted (If the subject of the event or resolution is a publicly issued company or above, this major information also meets the criteria of Article 7, Paragraph 9 of the Regulations Governing the Application of the Securities Transaction Act regarding matters that have a material impact on shareholder equity or securities prices): Consolidated revenue for May 2026 was NT$16.44 billion, operating income was NT$2.04 billion, net profit after tax was NT$1.52 billion, and EPS after tax was NT$0.50. Cumulative consolidated revenue for the first five months of 2026 was NT$81.89 billion, operating income was NT$9.97 billion, net profit after tax was NT$7.09 billion, and EPS after tax was NT$2.34.