Turkcell Iletisim Hizmetleri A.s.BIST: TCELL

Announcement Regarding the Redemption of the Eurobond

· Issued by Turkcell Iletisim Hizmetleri A.s.


Istanbul, October 15, 2025

Announcement Regarding the Redemption of the Eurobond

The 10-year bonds issued by our Company on October 15, 2015, to qualified investors abroad with coupon rate of 5.75% based on a 5.95% reoffer yield (RegS XS1298711729 / 144A US900111AA39 ISIN code), has matured as of October 15, 2025. The principal and all coupon interest payments related to the bond have been made as scheduled.

Redemption Schedule of the Capital Market Instrument

Coupon Serial Number

Payment Date

Has the payment been settled?

1

April 2016

Yes

2

October 2016

Yes

3

April 2017

Yes

4

October 2017

Yes

5

April 2018

Yes

6

October 2018

Yes

7

April 2019

Yes

8

October 2019

Yes

9

April 2020

Yes

10

October 2020

Yes

11

April 2021

Yes

12

October 2021

Yes

13

April 2022

Yes

14

October 2022

Yes

15

April 2023

Yes

16

October 2023

Yes

17

April 2024

Yes

18

October 2024

Yes

19

April 2025

Yes

Principal / Maturity Date Payment Amount

October 2025

Yes

For more information:

Turkcell Investor Relations investor.relations@turkcell.com.tr Tel: + 90 212 313 1888