SK hynix’s (SKHYV ) board has permitted a mixed 54 trillion received (roughly $39 billion) for 2 new fabrication crops, the corporate introduced on August 7, 2026: 35.2 trillion received for “Y2,” the second fab at its Yongin Semiconductor Cluster, and 19.1 trillion received for “M17,” a brand new NAND fab in Cheongju. The 2 tasks develop manufacturing capability for each halves of the reminiscence enterprise that AI infrastructure now runs on: DRAM for high-bandwidth reminiscence, and NAND flash for the enterprise SSDs piling up behind AI inference.
Y2 is the larger test and the longer wait. Floor breaks in July 2027 on a DRAM plant with about 1.13 million sq. meters of flooring space, and its first cleanroom opens in June 2029 to supply HBM and different next-generation DRAM. M17, at roughly 680,000 sq. meters, breaks floor earlier (February 2027) and opens its first cleanroom in December 2028. Y2’s funding interval runs by means of October 2031, M17’s by means of April 2031.
Each fabs are executions of the mid-to-long-term funding technique SK hynix specified by June 2026, a 1,100 trillion received program spanning Yongin (600 trillion received), Cheongju (100 trillion received), and a future Southwestern Area manufacturing hub (400 trillion received). The board approvals flip the primary two arms of that grasp plan from introduced intentions into funded building schedules.
The demand case SK hynix cites is particular. Market analysis agency Omdia tasks each DRAM and NAND demand rising at a 19% compound annual charge from 2025 by means of 2030, and the corporate is treating that as structural slightly than a supercycle to journey. Its said logic: supplying the required quantity on the precise second prospects want it’s now the aggressive benefit, not technological management alone.
What 54 trillion received buys, fab by fab
Y2 is the second of 4 fabs deliberate sequentially for the Yongin cluster in Gyeonggi-do, a website sprawling throughout about 4.16 million sq. meters. The primary, Y1, is already below building with its preliminary cleanroom focused for February 2027. SK hynix has pulled the complete cluster’s completion ahead 12 years, from 2045 to 2033, and Y2 is the second part of that accelerated schedule. The 35.2 trillion received covers greater than wafer capability: it features a enterprise assist constructing, an built-in R&D heart for product growth testing and evaluation, and auxiliary infrastructure from water remedy to substations.
The ability and water query that shadows each fab announcement has a documented reply right here, no less than for this part. Section 1 infrastructure for the cluster, every little thing required by means of Y2’s operation, is at a 99% completion charge, with fab building and utility buildout working concurrently.
M17’s siting is a pace determination. Cheongju already homes the M11, M12, and M15 fabs, so the brand new plant plugs into present operations and pre-built energy and water infrastructure, which the corporate says provides it the quickest building timeline of any choice. The NAND it’ll produce is driving a requirement driver that hardly existed two years in the past: enterprise SSDs for AI providers, plus key-value cache storage for inference workloads, the place storing beforehand computed vectors avoids redundant calculation as agentic AI purposes multiply.
Notably, the shell and the capability are decoupled. Fabs go up on the grasp schedule, however cleanroom growth and gear set up occur sequentially according to buyer demand — a construction that lets SK hynix commit building capital now whereas metering the far bigger gear spend towards orders.
- 54 trillion received: whole board-approved funding throughout Y2 and M17
- 35.2 trillion received: Yongin Y2, a DRAM fab of ~1,130,000 m², investing by means of October 2031
- 19.1 trillion received: Cheongju M17, a NAND fab of ~680,000 m², investing by means of April 2031
- 19%: projected CAGR for each DRAM and NAND demand, 2025 by means of 2030, per Omdia
- 99%: completion charge of the Yongin cluster’s Section 1 energy and water infrastructure
The buildout to date
The technique behind these two fabs has been assembling in public for months. SK hynix is already setting up Y1, the primary Yongin fab, with its preliminary cleanroom focused for February 2027. In June, it set the complete 1,100 trillion received framework, together with 100 trillion received for Cheongju masking M17 and a P&T7 superior packaging facility. The identical interval has seen the corporate deepen its demand-side ties, together with a multi-year expertise partnership with NVIDIA (NVDA ) on reminiscence for AI factories. HBM provide is precisely the constraint our protection of the present RAM scarcity traced by means of the provision chain — and at present’s approvals are what a provide response appears like at fab scale, with fab-scale lag instances.
What lands subsequent is a sequence of building milestones: M17 breaks floor in February 2027, Y1’s first cleanroom opens the identical month, Y2 breaks floor in July 2027, M17’s cleanroom opens in December 2028, and Y2’s follows in June 2029. The gear that turns these shells into wafer begins arrives solely as buyer demand does, so the hole between the 2 dates is the place SK hynix’s actual manufacturing reply to AI reminiscence demand will probably be determined.
