Türk Telekomünikasyon Anonim Sirketi : 01 April 2021 dated Regulatory Disclosure - Registration of Independent Auditor Selection

Turk Telekomunikasyon AS is a Turkey-based company, which is engaged, together with its subsidiaries, in the telecommunication sector. The Group provides local, national, international and mobile telecommunication services, internet products and services, as well as call center and customer relationship management, technology and information management. Turk Telekomunikasyon AS operates under the following segments: Fixed Line and Mobile. Fixed Line services are provided by Turk Telekom, TTNET AS, Argela Yazilim ve Bilisim Teknolojileri Sanayi ve Ticaret AS, Innova Bilisim Cozumleri AS, Sebit Egitim ve Bilgi Teknolojileri AS, AssisTT Rehberlik ve Musteri Hizmetleri AS and TTINT Group whereas Mobile service is provided by Avea Iletisim Hizmetleri AS.