SK Hynix announced Wednesday it will invest an additional 21.6 trillion won ($15.2 billion) in its first semiconductor fabrication plant at the Yongin cluster, cementing its dominance in the artificial intelligence memory chip market. Total investment in the first fab now reaches 31 trillion won.
The chipmaker aims to expand production capacity ahead of schedule to establish a stable supply system amid explosive semiconductor demand driven by AI data centers and other advanced industries.
The company said it will deploy the 21.6 trillion won by December 2030. Combined with the initial infrastructure cost of 9.4 trillion won announced in July 2024, total investment in the first fab has grown to 31 trillion won. The additional funds will complete structural work and build five cleanrooms from Phase 2 through Phase 6. The first fab will comprise two building structures housing six cleanrooms.
The first cleanroom will begin operations three months earlier than planned. "Efficient on-site process management allowed us to advance the facility operation schedule from May 2027 to February 2027," an SK Hynix official said.
The accelerated timeline enables the company to supply cutting-edge products when customers need them. SK Hynix plans to build operational systems in step with the early launch to respond nimbly to future demand. The strategy aims to strengthen customer confidence through continuous production expansion and solidify its global market leadership.
SK Hynix is accelerating construction as competition intensifies among global tech giants building AI infrastructure. Demand for advanced high-performance products including High Bandwidth Memory has entered a period of structural growth. Taiwan's TSMC and America's Micron are making massive capital investments to secure production capacity.
Expectations are rising that SK Hynix will achieve record results this year alongside the expanded capital investment. Securities analysts project the company's annual operating profit could reach as high as 272 trillion won this year—nearly seven times last year's record 47.2 trillion won. Major domestic and foreign brokerages including Macquarie forecast figures ranging from 122 trillion won to 272 trillion won.
"AI memory chip supply this year appears likely to fall about 30% short of demand," an industry official said. "This decision to accelerate the investment timeline is a strong declaration of intent to capture exploding demand."
Market conditions have grown urgent enough that big tech leaders including Tesla CEO Elon Musk have expressed concern about potential semiconductor supply chain instability. SK Group Chairman Chey Tae-won recently met with big tech executives during a U.S. visit and noted the difficulty of fully meeting customer volume demands.
The government's sweeping regulatory relief positively influenced the expanded investment scale. Under the National Advanced Strategic Industries Act, relaxed floor area ratios for industrial complexes housing strategic technology firms allowed significantly larger cleanroom space than originally designed. The increased area and recent inflation factors were both reflected in the investment calculation. Equipment procurement costs will be budgeted separately, suggesting total actual outlays will grow further.
The Yongin semiconductor cluster spans 4.15 million square meters. SK Hynix plans to build four cutting-edge fabs there, with total investment exceeding 600 trillion won.
The company will accelerate building a cooperative ecosystem with approximately 50 materials, parts, and equipment firms that will occupy the cluster. SK Hynix aims to establish a virtuous cycle where expanded production capacity drives mutual growth with domestic partners, completing a core semiconductor hub.
