SK Telecom Co., Ltd. provides wireless telecommunications in Korea. The Company is engaged in the commercial development and implementation of wireless and fixed-line technologies and services, as well as develop its platforms, including Internet of things (IoT) solutions, lifestyle enhancement and advanced media. It operates through three segments: cellular services, which include wireless voice and data transmission services, sales of wireless devices, IoT solutions platform services and lifestyle enhancement platform services; fixed-line telecommunication services, which include fixed-line telephone services, broadband Internet services, advanced media platform services (including Internet Protocol television (IPTV)) and business communications services, and other businesses, which include its commerce business, its hardware business and other operations. Its brands include SK Telecom, T-Roaming, 7Mobile, B phone, 00700, B tv, Syrup, UO Smart Beam Laser, Astell&Kern and Nate.