SK Hynix to invest $38 billion building new memory chip plants as demand soars
SK Hynix said it will invest 54 trillion won ($38.1 billion) to build two new memory chip fabs. It plans 35.2 trillion won for Yongin Y2 (DRAM) and 19.1 trillion won for Cheongju M17 (NAND). The move follows higher memory prices tied to AI-driven demand and supply shortages, according to SK Hynix and Counterpoint Research.
How this was made

The 30-second read
Why it matters
The disclosed capex amounts and construction/cleanroom opening dates provide a concrete timeline for when incremental capacity should matter, with the article explicitly stating near-term output is not altered and capacity is targeted for 2029 and beyond.
Market read
This is a primary capex disclosure with specific scale and timelines, reinforcing the memory supply tightness narrative and shaping expectations for 2028-2029 capacity.
What to watch
Execution risk (cleanroom ramp, yield, and cost inflation) and competitive capacity additions from Samsung/Micron could change the timing of supply relief.
Background
SK Hynix is responding to a memory price surge tied to supply shortages and AI-driven demand for high-bandwidth memory (HBM) and other next-generation DRAM.
Ticker impact
SK Hynix announced 54 trillion won capex for two new memory fabs, including DRAM and HBM production, to meet AI-driven demand.
Near term, supportive for sentiment around memory pricing and SK Hynix’s capacity growth; longer term, watch execution and whether supply ramps faster than demand.
The article provides concrete investment amounts, fab locations, and cleanroom timelines, plus a stated view that output won’t change in the near term but is built for 2029 and beyond.
Market effects
Reinforces the sector-wide capex cycle for DRAM/HBM and NAND, supporting the broader memory pricing floor thesis through 2028.
Positive read-through for South Korean semiconductor supply chain sentiment and capex expectations.
Supports AI infrastructure supply confidence, potentially affecting expectations for HBM availability for data centers and accelerators.
Counterpoint
Large capex can become a valuation risk if demand normalizes faster than planned or if supply ramps earlier than expected.
Key entities
- companySK Hynix
Announced 54 trillion won investment for two new memory fabs, including DRAM/HBM and NAND capacity, to address AI-related demand.
- facilityYongin Y2 (DRAM fab)
Second fab in the Yongin Semiconductor Cluster, with ground-breaking in July 2027 and first cleanroom opening in June 2029.
- facilityCheongju M17 (NAND fab)
Cheongju facility for NAND, with ground-breaking in February 2027 and first cleanroom opening in December 2028.




