STT GDC Enters South Korea with Launch of 30MW Seoul Data Center
June 18, 2026
STT GDC Enters South Korea with Launch of 30MW Seoul Data Center
ST Telemedia Global Data Centres (STT GDC), a major Asia-Pacific data center firm, has officially launched its first facility in South Korea, marking a strategic expansion into one of Northeast Asia’s most dynamic digital markets. The company announced the commercial opening of STT Seoul 1 this week, a move that underscores the growing demand for high-capacity infrastructure to support AI and hyperscale workloads in the region.
Located in the Gasan-dong district of Geumcheon-gu, Seoul, STT Seoul 1 is a large-scale facility encompassing approximately 40,000 square meters (430,556 sq ft) of gross floor area. The data center is designed to support up to 30MW of IT load and has achieved full commercial operations as of June 2026. The project was first announced in 2021 and has been developed through a joint venture in which STT GDC holds a 60 percent stake, with Hyosung Heavy Industries owning the remaining 40 percent. Plans for a second facility in Seoul were disclosed as early as 2022.
The facility is built to meet the rigorous demands of hyperscale and enterprise clients, featuring dual 22.9kV power feeds with a redundant configuration and the capacity to handle high-density workloads. It has also received Tier III certification from Uptime Institute, a key industry benchmark for reliability and resilience. “AI infrastructure demand is increasingly concentrating in markets where digital capability, power availability, and customer requirements come together,” said Charles Chulhoy Huh, country head for ST Telemedia Global Data Centres in Korea. “STT Seoul 1 establishes an important foundation for STT GDC’s presence in Korea, extending a globally consistent platform into a key Northeast Asian market, where customers are scaling increasingly advanced workloads and require infrastructure that is resilient, efficient, and built for long-term growth.”
Hyosung Heavy Industries, a subsidiary of the Hyosung Group founded in 1962, specializes in power transmission and distribution, transformers, construction, and renewable energy. The partnership underscores the convergence of data center development with traditional industrial expertise. Hyosung Group chairman Hyun-Joon Cho emphasized the long-term vision behind the project, stating, “Over a decade ago, we recognized the value of big data—often referred to as the ‘oil of the 21st century’—and set out with a firm conviction to build core AI infrastructure in the Seoul metropolitan area, the ‘brain’ of Korea. Today, STT Seoul 1 stands as a timely oasis for advanced IT companies that have long faced infrastructure constraints, and a new milestone marking the future of Korea’s AI ecosystem. Going forward, we will continue to expand our collaboration with STT GDC, not only in Korea but also in shaping the next paradigm of the global AI ecosystem.”
Industry analysts view the launch as a significant development for the Seoul data center market, which has faced capacity constraints amid surging demand for AI and cloud services. By establishing a presence in South Korea, STT GDC positions itself to capture a share of the growing market for high-performance computing infrastructure in a region that is increasingly central to global technology supply chains. The facility’s design, which prioritizes power redundancy and high-density support, aligns with the needs of operators deploying advanced AI workloads that require both scale and reliability.
Source: datacenterdynamics
