Turkiye Garanti Bankasi A.S.: Announcement regarding JCR Credit Rating

TO: Investment Community

FROM : Garanti BBVA / Investor Relations

SUBJECT: Announcement regarding JCR Credit Rating

DATE: September 28, 2023

JCR Eurasia Rating, has evaluated the consolidated structure of Türkiye Garanti Bankas A.. (the Bank) in the highest investment level category, affirmed the Long-Term National Issuer Credit Rating at AAA (tr) and the Short-Term National Issuer Credit Rating at J1+ (tr) with Stable outlooks on 28 September 2023. On the other hand, the Long-Term International Foreign and Local Currency Issuer Credit Ratings have been affirmed at BBB- and BBB respectively, with Stable outlooks, positioned above the country ceiling. The Banks current ratings are as follows:

*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 Boards 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