SK Telecom Co., Ltd. provides wireless telecommunication services in South Korea.

The company operates through three segments: Cellular Services, Fixed-Line Telecommunications Services, and Other Businesses.

The Cellular Services segment offers wireless voice and data transmission, Internet of Things solutions, platform, cloud, smart factory solutions, subscription, advertising and curated shopping under T Deal brand name, and metaverse platform-based services, as well as sells wireless devices.

The Fixed-Line Telecommunications Services segment provides fixed-line telephone services; broadband Internet services; media platform services, such as Internet protocol TV and cable TV; and business communications services.

The Other Businesses segment offers T-commerce services, as well as portal services under Nate brand name.

In addition, it provides call center management, base station maintenance, information gathering and consulting, database and internet website, cable broadcasting, broadcasting programs, and digital contents sourcing services; manufactures non-memory and other electronic integrated circuits; international telecommunication and mobile; and operates information and communications facilities, and mobile virtual network, as well as engages in communications and communication device retail business.

SK Telecom Co., Ltd. was incorporated in 1984 and is headquartered in Seoul, South Korea.