SK Hynix plans to restart construction of a new NAND flash wafer fab in South Korea, a move that addresses the growing storage demands of AI inference workloads. This expansion signals a shift in the semiconductor landscape as data centers prioritize high-capacity solid-state drives for running AI models rather than just training them. Buyers and enterprise users will see increased supply for the storage hardware that powers these critical operations.

Cheongju facility targets high-capacity SSD needs for AI inference
The proposed facility would be located in Cheongju, utilizing land where the company already operates its M15 plant. This site selection allows SK Hynix to leverage existing infrastructure while significantly boosting its local manufacturing footprint. The company has not yet confirmed final construction timelines, but the intent to build is clearly reported.
This project marks the first new NAND flash fabrication plant SK Hynix has built in South Korea since the completion of the M15 facility in 2018. The decision comes as the industry responds to a specific technical demand: the need for high-performance, high-capacity SSDs. AI workloads are moving from the training phase to inference, which requires different storage characteristics than previous generations of data center applications.
SK Hynix is not acting alone in this capacity expansion. Samsung Electronics is also expected to add new NAND production lines to its P5 fab in Pyeongtaek. This parallel investment by major competitors suggests a coordinated industry response to the storage bottleneck created by AI growth. We touched on SK hynix overtakes Samsung as South in our earlier Sk hynix coverage.
The confirmed facts indicate a strategic pivot toward inference-driven storage needs. SK Hynix will likely begin construction in Cheongju to meet this demand. Samsung will expand its Pyeongtaek operations simultaneously. These moves aim to secure supply chains for the next wave of AI hardware.



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