SK Telecom (017670)

SK Telecom, established in 1984, is a leading mobile telecommunications operator in South Korea, primarily focusing on its wireless telecommunications business. Its main business areas consist of mobile telecommunications (5G services), fixed-line telecommunications (broadband internet, IPTV, fixed-line telephone), and other businesses including AI, enterprise B2B, media, and commerce. Key products and services include the AI personal assistant 'A.', AI Data Center (AIDC), GPU-as-a-Service (GPUaaS), AI Cloud, AI Contact Center (AICC), and AI Vision, along with subscription services such as 'T Universe'. Based on consolidated revenue for 2024, the wireless telecommunications business accounts for approximately 74%, fixed-line telecommunications for approximately 23%, and other businesses for approximately 3%. The company maintains a leading position in the domestic mobile telecommunications market with a share of approximately 38-40%. Its main customers are individual mobile telecommunications subscribers, households subscribing to broadband internet and IPTV, and corporations and public institutions requiring B2B AI/ICT solutions. SK Telecom has maintained its leadership in the domestic mobile telecommunications market for a long time, securing a strong market position. Notably, it boasts high customer satisfaction, having achieved first place in the National Customer Satisfaction Index (NCSI) for mobile phone services for 29 consecutive years. Furthermore, aiming to transform into a 'Global AI Company', it is actively investing in the development of AI infrastructure (AIDC, GPUaaS), AI models (A.X K1), and AI services (A., AICC), thereby strengthening its technological competitiveness. Its experience in the world's first 5G commercialization and robust 5G subscriber-based network infrastructure are also key strengths. SK Telecom's revenue increased by 1.75% from KRW 17.305 trillion in 2022 to KRW 17.6085 trillion in 2023, and grew by 1.88% to KRW 17.9406 trillion in 2024. However, in 2025, it decreased by 4.69% year-over-year to KRW 17.0992 trillion. Operating income steadily grew, increasing by 8.75% from KRW 1.6121 trillion in 2022 to KRW 1.7532 trillion in 2023, and by 4.00% to KRW 1.8234 trillion in 2024. However, in 2025, it significantly decreased by 41.14% year-over-year to KRW 1.0732 trillion. The operating income margin declined from 10.16% in 2024 to 6.28% in 2025. However, in Q1 2026, the company recorded revenue of KRW 4.3923 trillion and operating income of KRW 537.6 billion, showing a recovery with an operating income margin of 12.24%. Examining SK Telecom's financial soundness, its debt-to-equity ratio was 157.57% in 2022, 146.31% in 2023, and 158.00% in 2024, improving to 132.40% in 2025. The current ratio was 89.72% in 2022, 94.16% in 2023, and 81.05% in 2024. However, in 2025, it significantly improved to 103.02%, exceeding 100%, indicating a substantial improvement in liquidity. Return on equity (ROE) significantly declined from 11.73% in 2024 to 2.90% in 2025, showing somewhat sluggish profitability. SK Telecom is leveraging the maturation of the 5G market and the growth of AI and IoT convergence services, as well as the B2B digital solutions market, as opportunities. The company plans to strengthen its competitiveness as a full-stack AI company encompassing AI infrastructure, AI models, and AI services, with the transformation into a 'Global AI Company' as its core strategy. In particular, through the 'Global Telco AI Alliance (GTAA)', it is expected to jointly develop telco-specific large language models (LLMs) and target the AI data center market, thereby expanding its presence in the global AI market.