ST Telemedia Global Data Centres (STT GDC), a leading global data centre provider, has announced the opening of STT Seoul 1, its first data centre in South Korea, establishing a strategic foothold for STT GDC in one of Asia’s most advanced digital markets.
Developed and operated through a joint venture between STT GDC (60%) and Hyosung Heavy Industries (40%), the move extends STT GDC’s platform to support customers deploying AI and cloud infrastructure across Northeast Asia.
South Korea is a strategically important market for high-performance digital infrastructure, underpinned by strong enterprise digitalisation and growing demand for compute capacity. The opening of STT Seoul 1 reflects STT GDC’s broader approach to expanding in markets where long-term digital demand, infrastructure readiness and customer requirements are converging. The facility is designed to support a range of hyperscale and enterprise deployments, including evolving high-density workloads.
“AI infrastructure demand is increasingly concentrating in markets where digital capability, power availability and customer requirements come together,” said Charles Chulhoy Huh, Country Head, ST Telemedia Global Data Centres (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.”
Located in Gasan-dong, Geumcheon-gu, Seoul, STT Seoul 1 comprises approximately 40,000 square metres of gross floor area and supports up to 30MW of IT load, with full commercial operations beginning in June 2026.


