Changes in Data Centers, From the perspective necessary for the project.
From development and permitting to power and facilities, and from investment to transactions. Read about the key points of the announcement and the current stage.
Hyundai Steel launched H ONE, combining rolled and built-up H-beams, and outlined a structural-steel offering for the heavy-load, large-section and non-standard size requirements of AI data centers.
LG Electronics USA signed a definitive long-term agreement with AIR Control Concepts to supply high-efficiency chillers to AI data centers in the United States and Canada. The 5 GW figure is the aggregate scale of the supported data center portfolio, not cooling capacity or secured power in Korea.
Sejong City signed an MOU with SK Securities, Meteus Asset Management and Seed H to pursue a 360 MW-class AI data center by 2029. The investment plan and administrative support pledge are confirmed, but they do not mean that land, power, water or permits have been secured.
Hyundai Steel launched H ONE, combining rolled and built-up H-beams, and outlined a structural-steel offering for the heavy-load, large-section and non-standard size requirements of AI data centers.
South Korea · Project location undisclosedStructural-steel brand launched; individual supply contracts and site use unconfirmed
Sejong City signed an MOU with SK Securities, Meteus Asset Management and Seed H to pursue a 360 MW-class AI data center by 2029. The investment plan and administrative support pledge are confirmed, but they do not mean that land, power, water or permits have been secured.
Sejong Special Self-Governing City (exact site and parcels undisclosed)Investment MOU; land, power, water and permits not yet secured
Sejong City-provided release cross-checked with Yonhap and NewsPim
LG Electronics USA signed a definitive long-term agreement with AIR Control Concepts to supply high-efficiency chillers to AI data centers in the United States and Canada. The 5 GW figure is the aggregate scale of the supported data center portfolio, not cooling capacity or secured power in Korea.
North American data center markets in the United States and Canada (individual sites undisclosed)Definitive long-term supply agreement; individual sites and delivery schedules undisclosed
Cross-check of official releases from LG Electronics Korea, LG Electronics USA and AIR Control Concepts
Sejong City and Actis Korea signed an investment MOU for a 100 MW-class AI data center on about 130,000 square metres in Sejong. It is recorded separately from the 360 MW agreement because the parties, scale and announcement date differ, without treating the site, power or permits as secured.
Sejong Special Self-Governing City (exact site and parcel require verification)Investment MOU; site, power, water and permits not yet secured
Cross-check of Sejong-provided release and major media including Yonhap
Donghae City granted a building permit for the first 100MW-class building in the AI data center campus at Bukpyeong 2nd General Industrial Complex. We update the long-term plan to the construction-preparation stage while distinguishing it from secured power and completed construction start.
Gangwon Donghae·Bukpyeong Second General Industrial ComplexBuilding permit complete · construction preparation · grid-impact assessment procedure confirmed
Donghae City official press release cross-checked with major media
LG Electronics will build an air-cooled chiller plant for AI data centers in Virginia and expand its Pyeongtaek and Changwon production lines. This indicates added manufacturing capacity, not a supply contract for a specific data center.
Windsor, Virginia, U.S.; Pyeongtaek and Changwon, KoreaManufacturing investment; U.S. plant construction and Korean line-expansion plan
LS ELECTRIC disclosed a contract to supply its U.S. subsidiary with extra-high-voltage transformers for North American hyperscale AI data-center power infrastructure. It is a new order with a different value and term from the August contract.
United States; nine North American substations (exact sites undisclosed)Extra-high-voltage transformer supply contract; sequential deliveries not yet completed
Cross-check of FSS DART and LS ELECTRIC-supplied announcement
Hanshin E&C, Jeongdo and ZYX Technology agreed to jointly develop an integrated BIM, AI-design and digital-twin solution linking data-center design, fabrication, construction and maintenance data.
South Korea · Project location undisclosedThree-party technology MOU; before joint development and field demonstration
Hanshin-provided announcement cross-checked with Electronic Times and Korea Economic Daily
Hyundai Engineering has won the Phase 1 AI data center construction project in Bieungdo-dong, Gunsan. It is merged into the existing SGC Gunsan site as construction-contract progress; the October groundbreaking remains a target.
SGC Green Power site, Bieungdo-dong, Gunsan, JeonbukPhase 1 construction awarded; groundbreaking planned
LG Electronics has been listed as a Preferred Partner in the Power and Cooling category of the NVIDIA Partner Network. This signals an expansion of opportunities for engagement during the early stages of design and is distinct from supply contracts for individual project sites.
South Korea and Global Business Signals (Specific project locations not disclosed)Official partner listing and individual supply contracts have not been verified.
Comparison of LG Electronics’ press release and LG’s official DSX Ready materials
The two companies have signed a memorandum of understanding (MOU) to jointly develop refrigerants and refrigeration oils and to expand the application of liquid immersion cooling. This is technical development news related to the selection of cooling media for data centers and the review of equipment compatibility.
Domestic Cooling TechnologiesMemorandum of Understanding for Joint Development
It has been confirmed that Woori Financial Group has signed a project finance (PF) agreement for the Pohang AI Factory data center, and that NHN Cloud has committed to a preliminary lease for 16 MW of IT load and is scheduled to take over operations upon completion.
Gwangmyeong General Industrial Complex, Ocheon-eup, Pohang, North Gyeongsang ProvincePF: Financial Agreement · Under Construction · Pre-lease Commitment · Scheduled to Begin Operations After Completion
Comparison of Woori Financial Group’s Announcement and Newsis Reports
LG Electronics’ official Korean announcement highlighted the DSX Ready certification for its 2.5 MW-class cooling water distribution unit (CDU). Here, MW refers to cooling capacity, which is different from the power supply capacity at the site.
Domestic and AI Cooling EquipmentProduct Platform Approval
LG Energy Solution announced that its LFP-based JF2 AC Link BESS has received DSX Ready certification. This is a product-specific technical update highlighting features designed to mitigate AI load fluctuations and enhance grid responsiveness.
Domestic and AI Power FacilitiesProduct Platform Approval
Hyundai Engineering & Construction has finalized the main contract for the construction of a new AI data center at the Gwangmyeong Industrial Complex in Pohang and has begun installing precast concrete (PC) structural elements, officially confirming the construction progress and standards for power, IT load, and design efficiency.
Gwangmyeong General Industrial Complex, Ocheon-eup, Pohang, North Gyeongsang ProvinceMain contract completed; PC structural framework installed; construction in progress
LG Electronics has unveiled an air-cooled, oil-free inverter turbo chiller that combines magnetic levitation bearings, refrigerant-based pre-cooling, and a modular piping package, designed to meet the cooling demands of AI data centers.
South Korea · Project location undisclosedProduct launch, individual orders, and on-site implementation have not been confirmed.
Cross-reference with LG Electronics press releases and official product documentation
GS announced its plan to invest approximately 15 trillion won in the 1.2 GW Phase 1 AI data center in Donghae, using a combination of project financing (PF) and equity capital, and confirmed the project operator for GS AI Infrastructure.
Gangwon Donghae·Bukpyeong Second General Industrial ComplexPrior to the public announcement of business plan revisions, land acquisition, licensing, power supply, and project financing (PF)
Financial Supervisory Service Electronic Disclosure System (DART)
Hanwha Ocean announced that it will unveil a 60MW-class floating data center model—which combines offshore power generation, seawater cooling, and a modular design—for the first time at Gastech 2026.
Global offshore solutions; domestic project sites not disclosedConceptual Design, Class Society Basic Certification, Public Announcement
Comparison of Hanwha Ocean’s Press Release with Major Domestic Media Reports
It has been confirmed that a building permit application for a large-scale data center in Block 7 of the Oryong District is currently under review, and Muan County plans to gather residents’ opinions before deciding whether to grant the permit.
Block 7, Support Area, Muan and Oryong Districts, South Jeolla ProvinceBuilding permit application, public comment period, and review in progress
Comparison of the Muan County Council’s Official Resolution and KBC Gwangju Broadcasting’s Follow-up Report
SK Chairman Choi Tae-won announced that discussions with global big tech companies regarding the 1GW expansion of the Ulsan AI data center have progressed to include an additional 900MW.
Ulsan·Mipo National Industrial ComplexProgress on long-term expansion customer consultations, contracts, and power supply arrangements remains unconfirmed.
SGC Energy’s board of directors has approved a resolution to invest 86.9 billion won in the tentatively named “SGC-KIS No. 1 Private Investment Partnership” to structure the financing for the first phase of the Gunsan AI data center.
1331 Oehang-ro, Gunsan, JeonbukResolution on PEF Investment · Structuring of PF and Construction Contracts
Comparison of SGC Energy’s Official Company News and DART Filings
South Chungcheong Province and Dangjin City signed an investment agreement with EFD and NFD Korea for a 100 MW AI data center worth 1.2405 trillion won, and official documents confirm that the project is currently in the stage of submitting a power system impact assessment and proceeding with building permits.
Dangjin and Songsan 2 General Industrial Complexes, South Chungcheong ProvinceInvestment agreement, securing a site, submission of the grid impact assessment, and building permit process
Comparison of South Chungcheong Province’s Official Press Release and NFD Korea’s Official Announcement
Gangwon Special Self-Governing Province announced that Shinsegae is considering investing in the Chuncheon Water-Heat Energy Convergence Cluster and is currently in discussions. The tenants, plots, power supply, and project operator have not yet been determined.
Water-Heat Energy Convergence Cluster in Jinae-ri, Dong-myeon, Chuncheon, Gangwon ProvinceInvestment Review and Tenant Negotiations
Comparison of the Gangwon Special Self-Governing Province Governor’s Press Conference, Yonhap News, and Chuncheon City’s Plan
Gangwon Special Self-Governing Province has announced that it is in discussions with KT regarding the construction of an AI data center in Wonju. This is an early stage of the recruitment process, and the final investment, project site, power supply, and permits have not yet been confirmed.
Details for the Wonju and candidate sites in Gangwon Province have not yet been finalized.Prior to investment negotiations and final confirmation
Comparison of the Gangwon Special Self-Governing Province Governor’s Press Conference and Yonhap News reports
GS E&C, LG Uplus, Zai C&A, Gansam Architects & Partners, and D&O CM are jointly developing and commercializing a standard prefabricated modular data center model tailored to the domestic environment.
South Korea · Project location undisclosedTechnology and Commercialization, MOUs, and Standard Model Development
Comparison of Announcements by GS E&C and LG Uplus vs. The Kyunghyang Shinmun
Ellis Group has submitted an amended securities registration statement, pushing back the schedule for institutional bookbuilding and the public subscription by about two weeks. This is not yet seen as the completion of the public offering or the execution of AI infrastructure investments.
South Korea · New physical locations not disclosedPrior to IPO amendment filing and public offering
Financial Supervisory Service (FSS) DART Amended Securities Registration Statement
Lotte Innovate has been awarded a contract to manage the data center currently under development by Aegis Asset Management in Choji-dong, Ansan. This project has been merged with the existing Baxtel site, and the contract has been divided into two parts: the construction phase and the post-completion operations phase.
Area around 624-3, Choji-dong, Danwon-gu, Ansan, Gyeonggi ProvinceConstruction and Outsourced Operation Contracts
Comparison of Lotte Innovate’s Announcement, Yonhap News, and The Korea Economic Daily
LS ELECTRIC and KT Cloud have signed a Memorandum of Understanding (MOU) to form a strategic partnership for the design and supply of power equipment for a new AI data center and for joint research on power solutions for modular data centers.
South Korea · Project location undisclosedStrategic MOUs and Plans for Design and Supply Cooperation
Official Announcement from LS Group and LS ELECTRIC
Doosan Fuel Cell has officially announced that it has signed a 501.4 billion won contract with Hi-Exium to supply phosphoric acid fuel cell systems and will sequentially deliver products for U.S. AI data centers from the second half of 2026 through the first half of 2028.
United States · Specific project locations not disclosedOverseas Power Equipment Supply Contract
Gaon Cable announced that, based on its experience supplying North American semiconductor factories, it is expanding the application of its low-friction power distribution cables to AI data centers and strengthening its bus duct, low-voltage, and medium-voltage cable product lines.
Global AIDC Market and Domestic Project Sites Not DisclosedExpanding Product Applications and Entering New Markets
The Korea Institute of Civil Engineering and Building Technology (KICT) has officially announced a plan to transition to a new construction production system that integrates standard design, modular and OSC (Off-Site Construction) methods, and R&D in mechanical systems, cooling, power, and design automation to improve the speed and quality of supply for high-density, high-heat-generating AI data centers.
National, Construction Technology, and RegulationsPolicy, R&D Planning, and Industrial Strategy
Korea Institute of Civil Engineering and Building Technology
JDC announced that it is conducting a planning study for a government-led AI data center in collaboration with Jeju Province and Jeju Technopark, and is reviewing the Second High-Tech Science and Technology Complex as a potential site. The organization plans to finalize the government budget and private-sector participation structure following the release of the results in November.
Jeju City, Jeju; Candidate Site for the Second High-Tech Science and Technology ComplexPlanning Services and Review of Candidate Sites
Ellis Group has announced plans to position its modular data center, AI PMDC, and GPU/NPU cloud infrastructure as its core businesses, and to invest the proceeds from its IPO in the second half of the year into expanding domestic AI infrastructure.
South Korea · New physical locations not disclosedIPO Plans and AI Infrastructure Investment Plans
Comparison of Ellis Group’s Official IPO Announcement and Yonhap News Interview
It has been confirmed that Shinsegae Group has established two new entities, SSG AI KOREA and SSG AI DC, and has set up a corporate structure for the investment, development, and operation of AI data centers.
South Korea · Specific project locations not disclosedEstablishment of a Dedicated Corporation and Review of Business Structure
Comparison of Official Announcements by Yonhap Infomax and Shinsegae Group
At a corporate briefing on August 27, 2026, C-Lab unveiled its strategy for the second half of the year, which includes strengthening its dedicated AI data center organization and expanding its GPU resource management software and technical services business.
South Korea · No specific physical locationsStrengthening Business Organization and Product Strategy
Comparison of CILab’s Corporate Briefing and ZDNet Korea
The Ministry of Climate, Energy, and Environment held the first meeting of an industry-academia-research task force to develop an AI data center grid code that reflects the characteristics of the domestic power grid by the end of the year.
National and Power System PoliciesPrior to the establishment of standards and research
Republic of Korea Policy Briefing · Ministry of Climate, Energy, and Environment
In a corrective disclosure by DL E&C, details regarding the revised contract amount, project site, planned IT load, and contract period for the Gimpo ICN11 project—commissioned by Digital Seoul 2—were confirmed.
Gimpo, Gyeonggi ProvinceConstruction and Contract Amendments
Korea Exchange (KRX), KIND, and Koscom Disclosures
SK Telecom has officially announced that it will spin off SK Broadband’s data center and submarine cable businesses through a spin-off to establish SK Horizon and attract equity investment from the KKR-IMM consortium.
At a policy forum hosted by the Korea Internet Enterprise Association, industry opinions calling for clarification on the scope of tax credits for power, HVAC, and cooling systems in AI data centers, as well as for cloud business facilities and investments in the Seoul metropolitan area, were presented alongside the government’s responses.
National and Policy ScopePolicy Proposals and Government Review
Policy Brief by the Korea Internet Enterprise Association
SGC AI Infrastructure has signed an investment agreement with Jeonbuk Province, Gunsan City, and the Korea Industrial Complex Corporation to build an AI data center in the Gunsan National Industrial Complex No. 2.
Gunsan, JeonbukInvestment Agreements and Upcoming Groundbreakings
Comparison of Gunsan City’s announcement and Yonhap News reports
Alibaba Cloud has officially announced the launch of its third data center in South Korea and the expansion of its infrastructure in the South Korea region.
South Korea · Specific location undisclosedStart of Operations
In a board-related announcement, LG Uplus disclosed that the investment for Phase 2 of the Paju AI Data Center construction amounts to approximately 1.3 trillion won.
Paju, Gyeonggi ProvinceAnnouncement of Investment Decision
South Gyeongsang Province, Changwon City, Dinotisia, Dinocore, and Shinwa Steel have signed an investment agreement to build an AI data center dedicated to the defense industry in Palyong-dong, Uichang-gu, Changwon.
Changwon, South Gyeongsang ProvinceInvestment Agreements and Plans
Comparison of Announcements by South Gyeongsang Province and Yonhap News
SK Telecom has signed an MOU with Anthropic to collaborate on a GW-class AIDC in Korea and is also working with AWS to expand its presence in key domestic locations based on its experience in Ulsan.
Ulsan and Other Domestic Candidate SitesStrategic Agreement
The two companies have agreed to jointly develop an 800V DC-based next-generation power system that reduces the number of power conversion stages, along with data analysis and diagnostic technologies.
Project locations not disclosedTechnology Development Agreement
Reports indicate that a facility in the Seoul metropolitan area, which lost its right to pay in installments due to non-payment of the land balance, is pursuing a conversion to a main project financing (PF) structure with a new investor based on a 20 MW electricity supply contract.
Seoul Metropolitan Area and project sites are not disclosed.Restructuring and Review of the Main Project Finance (PF)
Construction has begun on the first phase of a 40-MW AI data center in Pohang, and the total private investment has been announced at approximately 2 trillion won.
Pohang, North Gyeongsang ProvincePhase 1 construction begins
The government has outlined a plan to overhaul the power supervision system—including improvements to power grid technical standards and a verification system for compliance—in response to large-scale loads and the increase in distributed energy resources.
SK Telecom announced a plan to begin with the Ulsan No. 1 Center, gradually rolling out 5 GW of domestic capacity starting in 2029 and expanding to 15 GW by 2035.
Ulsan, Yeongnam, and Southwest RegionsNational Long-Term Plan
Relevant government agencies have designated AI data centers as one of the nation’s three major megaprojects, alongside semiconductors and physical AI, and have announced plans to provide support for power, water, and land.
An agreement has been signed to ensure the stable supply of emergency generators and core power equipment for future AI data centers, including the Paju AI Data Center.
LG Uplus announced that it confirmed an approximately 24% improvement in energy efficiency compared to air cooling through the D2C liquid cooling design and its own pilot test at the Paju Center.
Market analysis indicates that while large construction firms and global investors are integrating design, power, cooling, and the main project finance (PF), an increasing number of mid-sized operators are remaining at the bridge financing stage.
NHN has officially announced the launch of its water-cooled B200 GPU infrastructure in the Seoul-Yangpyeong region and its plans to build the B300 facility at the Gwangju National AI Data Center.
Digital Realty has officially announced a case study detailing its support for Samsung Electronics’ enterprise IT infrastructure colocation at ICN10 in Seoul.
Koramco Asset Trust announced that it has completed a 70 billion won capital increase for Koramco Asset Management and will expand investments in digital infrastructure, such as data centers.
Macquarie Infrastructure Fund and Gabia have agreed to jointly invest approximately 600 billion won over the next 4 to 6 years to develop a platform for data centers with a capacity of 100 MW or more in South Korea.
Ansan, Gyeonggi Province; Major Domestic HubsJoint Venture Agreement
LG Uplus has officially unveiled the design, cooling, and power stabilization technologies, as well as the operational strategies, that it will implement at its Paju AI data center.
In its annual earnings report, NHN announced that it is in the process of building a single cluster of over 4,000 B200 GPUs and a water-cooled system in the Yangpyeong region of Seoul.
According to industry reports, a consortium consisting of Koramco Asset Management and NH Investment & Securities has been selected as the preferred bidder for a 100MW-class project site near Rhythm City in Uijeongbu.
It has been reported that construction has begun on an AI data center project in Danggu-dong, Wonju, comprising three 40-MW buildings and operational and support facilities.
Wonju, Gangwon ProvinceAnnouncement of Construction Start
SK Telecom has unveiled a roadmap to expand the Ulsan AIDC to a 1 GW scale and replicate the model at key domestic locations based on energy-specialized solutions.
Ulsan and Nationwide Candidate SitesExpansion Roadmap
Hyundai Engineering & Construction announced the completion of the Yongin Jukjeon Hyperscale Data Center, revealing that it consists of two buildings with a power supply capacity of 100 MW and an IT load of 64 MW.
Yongin, Gyeonggi ProvinceCompletion
Announced by Yonhap News and Hyundai Engineering & Construction
KINX received approval for the completion of its Gwacheon Data Center on August 21, 2024, and announced plans to launch services in October following equipment stress tests.
Gwacheon, Gyeonggi ProvinceCompletion and Trial Operation
Actis announced the launch of an Asian data center platform with approximately 200 MW of IT capacity, comprising development projects in South Korea, Taiwan, and Malaysia.
Metropolitan Area and Overseas PortfolioLaunch of an Investment Platform
The Ministry of Trade, Industry and Energy announced the enforcement of the Special Act on the Promotion of Distributed Energy and the implementation of the power system impact assessment system for power-consuming facilities with a contracted power capacity of 10 MW or more.
Naver announced the start of operations at its Sejong facilities, revealing that they are designed to accommodate up to 600,000 server units and handle up to 270 MW of power intake.
LG Uplus announced the completion of its Pyeongchon 2 Center, which has a total floor area of 40,450 square meters and can accommodate more than 200,000 servers.
Kakao has officially announced the completion of construction and held a completion ceremony for its first in-house data center in Ansan, which broke ground in 2021.
The Ministry of Trade, Industry and Energy has announced guidelines to support the decentralization of data center locations in order to reduce the burden on transmission and distribution networks caused by the concentration of data centers in the Seoul metropolitan area.
LG Uplus has unveiled the high-efficiency cooling and eco-friendly construction plans for its Pyeongchon 2 Center, which has a total floor area of 40,450 square meters.
Anyang, Gyeonggi ProvinceConstruction and Facility Plans
Read the presentation and prepare for the next steps.
We have organized the necessary documents and company procedures step by step, from the notice of intent through technical review, power system impact assessment, contract signing, and power connection.
We prioritize verifying original sources from government and public agencies as well as operators. Duplicate entries from the same announcement are consolidated, and subsequent announcements regarding contracts, construction, and operations are recorded as change history. We distinguish between MOUs, plans, groundbreakings, completions, and operations; the number of posts does not represent the total number of data centers nationwide. When a new source document is confirmed, we add the actual text rather than simply updating the date.