Turkiye Garanti Bankasi A.S. / US9001487019

TO: Investment Community FROM : Garanti BBVA / Investor Relations SUBJECT: Annoucement about the issuance of subordinated eurobond abroad   DATE: June 24, 2025     Our Bank has mandated Banco Bilbao Vizcaya Argentaria, S.A, BofA Securities, J.P. Morgan Securities plc, BNP Paribas, Emirates NBD Bank PJSC, First Abu Dhabi Bank,  MUFG Securities EMEA plc and Standard Chartered Bank for an issuance of U.S. dollar-denominated subordinated notes (Basel III compliant) to be sold to Institutional Investors resident abroad.   *In contradiction between the Turkish and English versions of this public disclosure, the Turkish version shall prevail.   We declare that our above statements are in conformity with the principles included in the Board’s Communiqué, Serial II Nr.15.1, that it exactly reflects the information we received; that the information complies with our records, books and documents; that we did our best to obtain the correct and complete information relative to this subject and that we are responsible for the declarations made in this regard.     Yours sincerely, Garanti BBVA Contact Garanti BBVA Investor Relations: Tel: +90 212 318 2352 Fax: +90 212 216 5902 E-mail: investorrelations@garantibbva.com.tr www.garantibbvainvestorrelations.com