Mega Financial Holding Announces May 2026 Consolidated Earnings for Itself and Major Subsidiaries

1. Date of Event: 115/06/12 2. Company Name: Mega Financial Holding Co., Ltd. 3. Relationship with Company (Please enter '本公司' or 'Subsidiary'):本公司 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: Announcement of self-consolidated earnings for May 2026 for the Company and its major subsidiaries 6. Response Measures: None 7. Other Matters to be Disclosed (If the entity of the event or resolution is a publicly issued company or above, this major information simultaneously qualifies as a matter under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities Trading Act that significantly affects shareholder rights or securities prices):

Announcement of performance data for May 2026 for the Company and its major subsidiaries:

Monthly Monthly Cumulative Cumulative Cumulative Pre-tax After-tax Pre-tax After-tax After-tax Profit Profit Profit Profit EPS (Billion (Billion (Billion (Billion (NTD) NTD) NTD) NTD) NTD) Mega Financial 45.48 37.81 215.10 180.35 1.22 Holding Mega Bank 32.53 27.00 158.20 131.56 1.32 Mega Securities 7.95 6.88 34.83 31.13 2.62 Mega Bills 4.29 3.37 18.30 14.54 0.96 Mega Insurance 1.26 1.05 5.53 4.46 1.36

Note: As of May 31, 115, Mega Financial Holding's net asset value per share was NT$28.44. Note: Cumulative after-tax EPS as of May, excluding catastrophe insurance reserve, was NT$1.22 for Mega Financial Holding and NT$1.36 for Mega Insurance.

The above figures are self-consolidated and have not been audited or reviewed by accountants.