SK Telecom Co., Ltd. engages in the provision of wireless telecommunication and internet services. The company operates through the following business divisions: Wireless Tele Communication Services, Fixed-Line Telecommunication Services and Other business. The Wireless Tele Communication Services division offers wireless data and wireless internet services. The Fixed-Line Telecommunication Services division deals with telephone and internet services. The Other Business division consists of operations from the company's leased line services, internet portal services and E-Commerce. The company was founded on March 29, 1984 and is headquartered in Seoul, South Korea.