SK Hynix’s board on Aug. 7 approved a combined 54.3 trillion won, or about $38.4 billion, to build two memory fabs in South Korea. Of that total, 35.2 trillion won is earmarked for the Y2 DRAM fab in the Yongin semiconductor cluster in Gyeonggi Province, and 19.1 trillion won is allocated to the M17 NAND fab in Cheongju, North Chungcheong Province.
The company said the investment was made to match the pace of market growth and capture emerging opportunities. It added that by securing production capacity ahead of time, it aims to become a key partner in AI infrastructure.
Two fabs, two product lines, and a fixed construction schedule
Y2 will produce high-bandwidth memory, or HBM, and next-generation DRAM. M17 will produce NAND used in enterprise solid-state drives.
According to the timeline in the report, M17 is scheduled to break ground in February 2027, with its first cleanroom set to open in December 2028. Its investment period runs through April 2031. Y2 is scheduled to begin construction in July 2027, with its first cleanroom due in June 2029, and its investment period extends to October 2031.
The two facilities will have floor areas of 341,000 pyeong and 206,000 pyeong, respectively, for a combined total of roughly 1.81 million square meters.
The approved spending equals about 60% of quarter-end cash
The article says SK Hynix held 88 trillion won in cash and cash equivalents at the end of the second quarter. Against that figure, the newly approved 54.3 trillion won amounts to about 60% of the company’s cash pile.
It also points to the company’s recent capital raise. Last month, SK Hynix listed American depositary receipts in the U.S. and raised $26.5 billion. Compared with the $38.4 billion announced on Aug. 7, that leaves a difference of $11.9 billion, meaning the ADR proceeds alone would not be enough and the rest would need to come from the company’s own cash flow.
Earlier the same day, the report notes, Bloomberg had said SK Hynix had been buying 10 trillion to 40 trillion won of South Korean corporate bonds this year and had been described by local credit market analysts as a new heavyweight in that market. The company had even opened a job posting to manage the cash. The new fab approval, the article says, now gives a clearer answer to how that money may be used.
Yongin’s fourth-fab target moves from 2045 to 2033
Y2 is the second of four planned fabs in the Yongin semiconductor cluster. The complex is located in Wonsam-myeon, Cheoin-gu, Yongin, and spans 4.15 million square meters. With phased spending on buildings and production equipment, total investment in the cluster is expected to reach 600 trillion won.
The first fab in Yongin is scheduled to begin construction in March 2025. Y2 is set to follow in July 2027, and its first cleanroom is due to open in June 2029.
The bigger change is in the overall timetable. With Y2 now formally approved, the target completion date for the fourth fab in the Yongin cluster has been brought forward from 2045 to 2033, cutting 12 years from the original schedule.
M17 is part of an existing 100 trillion won Cheongju plan
The Cheongju fab is not a standalone plan. The report says M17 is a central part of a 100 trillion won investment plan for Cheongju that was announced in early July. Under that plan, 80 trillion won was assigned to M17 and 20 trillion won to the advanced packaging plant P&T7. The board this time approved 19.1 trillion won for M17.
The Yongin project is also part of a larger framework. Total investment in the Yongin semiconductor cluster is projected at 600 trillion won, with four fabs planned in all, and Y2 is the second of them.
Capacity is aimed at AI memory demand, but the timing is later
The product split matters. Y2 is dedicated to HBM and next-generation DRAM, while M17 is aimed at NAND for enterprise SSDs. The report says both categories are in short supply across the current AI server buildout.
It also ties the fab decision to SK Hynix’s latest earnings. In the company’s second-quarter results, revenue from enterprise SSDs doubled from the previous quarter, and revenue from high-capacity products above 30TB rose by more than twofold. The article says the new capacity plan effectively follows the demand signals shown in those figures.
Even so, the schedule does not line up with immediate shortages. The report notes that Goldman Sachs said earlier this week that the supply shortfall in AI memory would continue at least through 2028. Yet the first cleanrooms for the two newly approved fabs will not open until December 2028 and June 2029, and equipment installation, trial production, and volume ramp-up would still come after that.
On that timeline, the $38.4 billion commitment is aimed at capacity after 2029 rather than solving current shortages.
How the new approval fits into SK Hynix’s broader investment plans
The report also addresses two practical questions.
First, the 54.3 trillion won approved on Aug. 7 is an execution step within larger plans already announced. The Yongin cluster is expected to involve 600 trillion won in total spending and four fabs, with Y2 as the second. The Cheongju plan totals 100 trillion won, of which 80 trillion won was set aside for M17 and 20 trillion won for P&T7. The latest board action covers 19.1 trillion won for M17.
Second, on when the fabs will begin contributing shipments, the article only gives the cleanroom milestones with certainty. M17’s first cleanroom is due in December 2028 and Y2’s in June 2029. After that, the facilities would still need equipment installation and trial production before they can make a meaningful contribution to mass production.