SK TELECOM CO LTD

As Korea’s first wireless telecommunications service provider, we have a recognized history of leadership and innovation in the domestic telecommunications sector. Today, we remain Korea’s leading wireless telecommunications services provider and have continued to pioneer the commercial development and implementation of state-of-the-art wireless technologies. We had 23.5 million mobile phone subscribers, including MVNO subscribers leasing our networks, as of December 31, 2025, representing a market share of 41.6%, the largest market share among Korean wireless telecommunications service providers. We believe that we are also a leader in developing new products and services that reflect the increasing convergence of telecommunications technologies, as well as the growing synergies between the telecommunications sector and other industries. In February 2012, we acquired an equity stake in SK Hynix, one of the world’s largest memory-chip makers by revenue, for an aggregate purchase price of Won 3.4 trillion, and became its largest shareholder. In November 2021, we transferred all of our 20.1% equity interest in SK Hynix to SK Square pursuant to the Spin-off, as further described below.