| CUSIP NO. 900111204 | Schedule 13D/A |
EXHIBIT 99.A
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing, along with all other such undersigned, on behalf of the Reporting Persons (as defined in the joint filing), of a statement on Schedule 13D (including amendments thereto) with respect to Ordinary Shares, nominal value TRY 1.000 per share, of Turkcell Iletisim Hizmetleri A.S., and that this agreement be included as an Exhibit A to such joint filing. This agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument. The undersigned acknowledge that each shall be responsible for the timely filing of any amendments, and for the completeness and accuracy of the information concerning the undersigned or contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others.
| Date: June 19, 2020 | MEHMET EMIN KARAMEHMET | |
| By: | /s/ Mehmet Emin Karamehmet | |
| Date: June 19, 2020 | BUSELTEN FINANCE S.A. | |
| By: | /s/ Zekiye Boyali | |
| Name: | Zekiye Boyali | |
| Title: | Power of Attorney | |
| Date: June 19, 2020 | KARAMKO IMALAT ZIRAAT ENDUSTRI VE TICARET A.S. | |
| By: | /s/ Mehmet Emin Karamehmet | |
| Name: | Mehmet Emin Karamehmet | |
| Title: | Director | |
| Date: June 19, 2020 | CUKUROVA HOLDING A.S. | |
| By: | /s/ Fikri Şadi Gücüm | |
| Name: | Fikri Şadi Gücüm | |
| Title: | Director | |
| By: | /s/ Mehmet Ali Karamehmet | |
| Name: | Mehmet Ali Karamehmet | |
| Title: | Director | |
| Date: June 19, 2020 | CUKUROVA FINANCE INTERNATIONAL LIMITED | |
| By: | /s/ Hikmet Yasemin Cetinalp | |
| Name: | Hikmet Yasemin Cetinalp | |
| Title: | Sole Director | |
