SK Hynix announced August 7 that its board has approved a total investment of approximately 54 trillion Korean won ($38.1 billion) to build two new memory chip manufacturing plants in response to soaring AI-driven demand. The Yongin Y2 fab will receive 35.2 trillion won for DRAM production, with construction breaking ground July 2027 and first cleanroom opening June 2029. The Cheongju M17 fab will receive 19.1 trillion won for NAND production, with groundbreaking in February 2027 and first cleanroom in December 2028. Both facilities are part of SK Hynix's previously announced master plan to invest 600 trillion won in Yongin and 100 trillion won in Cheongju through 2031.
The expansion directly targets high-bandwidth memory (HBM) and next-generation DRAM for AI data center infrastructure. SK Hynix competes globally with Samsung and Micron as one of the three largest memory producers, and all three have seen massive stock rallies driven by investor expectations of persistent supply-demand imbalance. Memory prices have surged due to shortage of supply against huge demand from companies building AI infrastructure and chip firms like Nvidia. Y2 will be the second of four planned fabs in the Yongin Semiconductor Cluster; the company accelerated completion of all four from 2045 to 2033.
SK Hynix signaled supply-side discipline in the statement: 'In the AI era, technological competitiveness alone is not enough and the ability to supply the required volume at the exact moment customers need it is the ultimate competitive advantage.' The investment cements SK Hynix's bet on prolonged AI capex demand and positions the company to capture growth in both DRAM (prefill/KV cache) and NAND (model storage) segments. For architects, this capex signal reinforces that HBM availability remains a gating factor for inference-at-scale deployment, and that memory supply expansion lags demand by 18–24 months.