Notice of 2026 1st Extraordinary Shareholders' Meeting and Director Election Agenda

Extraordinary shareholders' meeting to be held on May 27, 2026 at 10:00 AM at headquarters (KT Building 10F)
Key resolution: election of 4 directors (inside directors Yang Yul-mo, Yoon Young-kyun; non-executive directors Kwon Gap-seok, Kwon Hee-keun)
All candidates are from KT Group affiliates and related to the largest shareholder
Agenda includes audit committee report and availability of management reference materials
Electronic voting available from May 17 to May 26, 2026 (24 hours)