🧾 What This Document Is 📝

This filing, a Form 6-K, is an update that a foreign company reports to the U.S. Securities and Exchange Commission (SEC). In simple terms, it’s a way for Turkcell to keep investors informed about important developments in its home country.

👉 The primary purpose of this specific filing is to announce the firm that will be responsible for auditing the company's financial books and reporting standards for the upcoming year.

🏢 What The Company Does 📶

Turkcell Iletisim Hizmetleri A S. (Turkcell) is a major telecommunications provider based in Istanbul, Türkiye. Like other telecom companies, its core business involves providing communications services to its customer base.

👉 As a dominant player in the Turkish market, Turkcell’s operations involve the complex infrastructure needed to deliver everything from basic phone calls to advanced digital services.

🔍 Audit Determination for 2026 📈

When a company prepares for its annual report, it must have an independent third party to verify that the numbers are accurate and that the company is following all required laws. This section details the appointment of that expert firm.

Turkcell's Board of Directors has formally resolved to appoint PwC Bağbreveımsız Denetim ve Serbest Muhasebeci Mali Müscedilavirlik Anonim Şirketi as its independent auditor for the year 2026.

• Scope of Audit: PwC will audit the company’s accounts and operations for the full year of 2026. This is the standard financial health check.
• Sustainability Audit: Crucially, the scope also includes a mandatory sustainability assurance audit. This means PwC won't just check the money; they will also verify that the sustainability report is prepared correctly according to Turkish standards.
• Legal Basis: This appointment is made in compliance with multiple regulations, including the Capital Markets Law, the Turkish Commercial Code, and specific standards from the Public Oversight, Accounting and Auditing Standards Authority.

🗓️ Required Shareholder Approval 🏛️

While the Board has made the appointment, the company must still get formal permission from its owners—the shareholders. This step is crucial because it validates the decision to the highest level of governance.

The appointment of PwC will be formally submitted for the approval of the shareholders at the Ordinary General Assembly Meeting scheduled for May 7, 2026.

👉 This date is the critical milestone; the audit firm is chosen, but the decision isn't locked in until the shareholders vote.

📞 Key Contacts and Signatories 📧

The filing provided several key contacts and signatures, which tell investors exactly who to talk to regarding corporate finance and investor relations.

• Investor Relations Contact: For general investor inquiries, the contact is [email protected], and the phone number is +90 212 313 1888 1.
• Authorized Signatories: The report was signed by Özlem Yardım, Corporate Finance Director and Investor Relations, and Kamil Kalyon, Chief Financial Officer (CFO).

🧠 The Analogy

Think of a company’s annual audit like preparing a student for graduation. The student (Turkcell) must pass all the classes (operations) and submit a detailed thesis (financial reports). The school (the SEC and Turkish regulators) requires a respected, independent professor (PwC) to grade the work. The board (the school administration) recommends the professor, but the final approval must come from the parent-teacher meeting (the General Assembly Meeting) to make sure everyone agrees the work is sound.

🧩 Final Takeaway

Turkcell has officially selected PwC to handle its 2026 financial and sustainability audits. The key dates to remember are the May 7, 2026, shareholder meeting, which must approve this appointment for it to be finalized.