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2h ago

SK Telecom and AWS Break Ground on GPU-Optimized AI Data Center in Ulsan

The facility is slated to begin phased operations in late 2027 to anchor South Korea’s push for advanced AI infrastructure.

Science Minister Bae Kyung-hoon speaks during a meeting with business officials in Ansan, southwest of Seoul, on Aug. 29, 2025, in this photo provided by the Ministry of Science and ICT. (PHOTO NOT FOR SALE) (Yonhap)
Image
In this file photo taken June 20, 2025, President Lee Jae Myung (C), SK Group Chairman Chey Tae-won (3rd from L) take part in a ceremony in Ulsan to launch a project to build an artificial intelligence (AI) data center to be jointly built by SK Group and Amazon Web Services (AWS).
This undated file photo provided by Kakako Corp. shows the company's data center in Ansan, southwest of Seoul. (PHOTO NOT FOR SALE) (Yonhap)

Overview

  • SK Telecom and SK Ecoplant started construction Friday with Amazon Web Services and the Ulsan city government, aiming for the country’s largest AI center outside the capital region.
  • About 200 people attended the ceremony, including SK Supex Council Chair Chey Chang-won, SK Telecom CEO Ryu Young-sang, SK Ecoplant CEO Kim Hyung-keun, Ulsan Mayor Kim Doo-gyeom and AWS Korea Executive Shin Jae-won.
  • The hyperscale build integrates AWS technical requirements with GPU-optimized systems, ultradense racks and hybrid air-and-water cooling engineered for 20–40 kW GPU racks and 40–100 kW cooling per rack.
  • Ulsan was chosen for reliable gas supply and subsea cable access, with SK Gas and SK Multi Utility providing combined heat-and-power electricity to improve cost stability and the carbon profile.
  • SK Telecom plans to make the site a core node of its AI infrastructure superhighway, linking data centers nationwide with GPU-as-a-service and edge networks to bolster national competitiveness.