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SK Hynix Triples CapEx Estimate for Yongin Cluster to $400B Amid Fab Expansion
Thursday, December 4, 2025 at 11:00 AM
SK Hynix has revised its total investment estimate for the four-fab Yongin Semiconductor Cluster through 2050 from $81 billion to $400 billion (600 trillion KRW), citing a more than 50% cleanroom size expansion and rising costs. The first fab alone, scheduled for completion in 2027, is now projected to cost $81 billion, and the overall project aims to boost the company's DRAM capacity to 700,000 sheets/month by 2030.
Context
SK Hynix is undertaking a massive, multi-decade capital expenditure commitment for its Yongin Semiconductor Cluster, with the total investment now estimated at approximately 600 trillion KRW (~$400 billion). This figure represents a significant increase from the initially cited 120 trillion KRW, driven by a greater than 50% cleanroom expansion following an increased floor-area ratio, alongside rising equipment and raw material costs, and exchange rate fluctuations. This strategic spending aims to materially boost capacity for AI-focused memory, signaling SK Hynix's urgent drive to narrow the gap with competitors.
Construction of Fab 1 began in February 2025 and is slated for completion in May 2027, with full operational ramp-up expected by 2030. This first fab alone is projected to add around 200,000 sheets/month to production. Combined with an additional 50,000 sheets/month from the Cheongju M15X facility, SK Hynix targets a total production capacity of approximately 700,000 sheets/month by 2030.
While this substantial investment strengthens SK Hynix's position in the AI memory market, it also implies considerable financing and execution risks, including potential inflation, equipment lead times, and margin pressures, as the project extends through 2050 with subsequent fabs.
Sources (9)
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