What happened
SK Group Chairman Chey Tae-won said the AI data center the group is building in Ulsan has been expanded to a capacity of nearly 900 megawatts.
He added that as the project advances, the group plans to announce additional partnerships with global technology companies.
The Ulsan AI data center is being developed jointly by SK Group and Amazon AWS, with an expected investment of 7 trillion won (US$5.2 billion) and a planned start of operations in the second half of 2027.
Why it matters
The scale of the capacity figure suggests the Ulsan project is being positioned as a major piece of AI infrastructure rather than a modest facility, which could matter for how much compute capacity the region can offer.
The stated plan to add global technology partners indicates the project is likely to rely on outside collaboration, not just SK's own resources, which may shape how the site is built out and used.
With operations targeted for the second half of 2027, the project sits on a multi-year timeline, meaning its impact on the AI landscape would be felt well after the current construction and partnership phase.
Key facts
Chey Tae-won said the Ulsan AI data center capacity has expanded to nearly 900 megawatts.
The project is jointly developed by SK Group and Amazon AWS.
Expected investment is 7 trillion won (US$5.2 billion).
Operations are planned for the second half of 2027.
SK Group plans to announce more partnerships with global technology companies as the project progresses.
What to watch next
Whether SK Group follows through on announcing additional global technology partnerships, and which companies those involve.
How the nearly 900 MW capacity figure develops as construction proceeds toward the planned 2027 operational start.
Whether the stated investment and timeline hold as the joint SK-AWS project moves forward.