TURKCELL GROUP Q3 2025 NOV 6, 2025 Q3 2025 BUSINESSOVERVIEW Ali Taha Koç, PhD Turkcell CEO Another quarter of robust performance… …powered by operational excellence Revenue TRY 59.5 Billion 11.2% YoY increase EBITDA TRY 26.2 Billion 10.5% YoY increase EBITDA Margin 43.9% 0.3pp YoY decrease Net Income from continuing operations TRY 5.4 Billion 31.8% YoY increase Turkcell Group: Q3 2025 Highlights Strong Results Driven by Strategic Execution Postpaid Net Add 569 K Turkcell Fiber Net Add 33 K DC & Cloud Revenu ...

Financial Performance - Turkcell Group's revenue increased by 12.5% year-over-year to TRY 53.022 billion[58] - EBITDA grew by 14.8% year-over-year to TRY 23.086 billion, with an EBITDA margin of 43.5%, a 0.9 percentage point increase[58] - Net income from continuing operations increased by 36.8% year-over-year to TRY 4.388 billion[5] Subscriber Growth & ARPU - Postpaid net additions reached 816,000, a record high in 5.5 years[5] - Mobile ARPU increased by 9.8% year-over-year to TRY 352.5[5] - Residential Fiber ARPU increased by 17.5% year-over-year to TRY 418.2[5] Business Segments - Techfin revenue grew by 23.1%[6] - Data Center & Cloud revenue grew by 53.2%[6] - Digital Business Services revenue increased by 39% year-over-year, reaching TRY 4.930 billion[30] Fixed Broadband - Turkcell Fiber saw a net addition of 4,000 subscribers quarter-over-quarter[5] - 12-month contract share in residential fixed broadband reached 87%[23] Techfin - Loan portfolio reached TRY 7.3 billion[33] - Total transaction volume increased by 75% year-over-year to TRY 38.8 billion[33]