[Chunghwa Telecom] Chunghwa Telecom Announces May 2026 Operational Performance

1. Date of Fact Occurrence: 115/06/10 2. Company Name: Chunghwa Telecom Co., Ltd. 3. Relationship with Company (Enter Parent Company or Subsidiary): Parent Company 4. Proportion of Mutual Shareholding: Not Applicable 5. Reason for Occurrence: Chunghwa Telecom announced its consolidated operating performance for May 2026: Revenue was approximately NT$19.52 billion, operating profit was approximately NT$4.35 billion, net profit attributable to owners of the parent was approximately NT$3.36 billion, Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA) was approximately NT$7.77 billion, and earnings per share were NT$0.44. Accumulated revenue was approximately NT$100.01 billion, operating profit was approximately NT$22.28 billion, net profit attributable to owners of the parent was approximately NT$17.20 billion, EBITDA was approximately NT$39.32 billion, and earnings per share were NT$2.22. 6. Countermeasures: None 7. Other Matters to be Noted (If the subject of the event or resolution is a publicly issued or higher company, 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 shareholders' equity or securities prices): None