Reference: Public disclosure of Türkiye İş Bankası A.Ş. (İşbank) on 03.11.2025.The draft Capital Market Instrument Note related to the issuance through public offering of green and/or sustainable debt instruments domestically with a nominal value of TRY 30 Billion within one year, submitted for approval of Capital Markets Board is attached hereto. This is the translation of the Turkish public disclosure made by Türkiye İş Bankası A.Ş. through the Public Disclosure Platform, under the Material Events Guideline prepared in accordance with the Communique of Material Events, numbered II-15.1. According to the Material Events Guideline and the regulations, the Turkish public disclosure shall prevail.