[First Financial] First Bank Announces Donation to the First Commercial Bank Cultural and Educational Foundation

1. Date of occurrence: April 17, 2026 (115/04/17) 2. Reason for donation: Based on the resolution of the 14th meeting of the 27th Board of Directors of First Bank on April 17, 2026 (115.4.17), a donation is made to the 'First Commercial Bank Cultural and Educational Foundation' to promote various public interest activities, such as holding free medical clinics, arts and cultural exhibitions, and caring for people with disabilities and disadvantaged groups. 3. Donation amount: NTD 17,258,274 4. Donee: First Commercial Bank Cultural and Educational Foundation 5. Relationship with the company: Related party 6. Names and resumes of independent directors expressing opposition or reservations: None 7. Opinions of the aforementioned independent directors: None 8. Other matters to be specified: None