❯ SK Hynix Bets $720 Billion on World’s Largest Memory Chip Cluster

MEGA BLUEPRINTCNBC’s first on-site visit to SK Hynix’s Yongin cluster: total investment of about $720 billion — 600 trillion won poured into the Yongin semiconductor cluster, plus another 100 trillion won for the Cheongju expansion — the company says this will be the world’s largest memory fab network, with the first fab entering production in February 2027, three months ahead of the original May schedule.

RECENT MOVESTurning to the near-term actions: a week earlier, the board had just approved $38.1 billion to build two new fabs — the Yongin Y2 plant with 35.2 trillion won in investment, its first cleanroom operational in June 2029, focused on HBM and advanced DRAM; the Cheongju M17 plant breaks ground in February 2027, with its first cleanroom opening in December 2028. AI compute demand pushing memory prices steadily higher is the direct confidence behind this full-throttle expansion.

COLLISIONRead against the previous item: CXMT is calling for 30% share by 2030, and SK Hynix answers with $720 billion in capacity. Both sides’ production windows are pinned to 2027 to 2029 — when the HBM supply-demand balance flips, the answer lies in these fabs’ ramp-up curves, and memory customers’ long-term contract negotiations must start picking sides now.

▪ SIGNALChinese and Korean memory fabs are simultaneously maxing out capex; the risk of HBM tipping from shortage to oversupply after 2027 is already written into both sides’ construction timelines.