ISTANBUL–(BUSINESS WIRE)–Turkcell (NYSE: TKC, BIST: TCELL) CEO Dr. Ali Taha Koç has been appointed Chair of the GSMA Technology Group, part of the GSMA, the world’s leading mobile industry organization representing more than 1,000 operators and companies worldwide. Already serving as a member of the GSMA Board, Koç will chair all GSMA Technology Group meetings, beginning with the session to be held in New Delhi, India, on October 5, 2026 The GSMA Technology Group supports the Board on key ind