Key Takeaways:
The US has for the first time tied its demand for Korean semiconductor investment to Seoul's 800 trillion won domestic cluster plan, forcing Samsung and SK Hynix to weigh dual-front capital commitments.
The US has escalated pressure on South Korean semiconductor firms to build memory fabs on American soil, for the first time linking the demand to dissatisfaction with Seoul's 800 trillion won Honam cluster project, according to ruling party officials.
"The US is demanding our semiconductor companies invest in local memory fab facilities and ensure stable memory supply," a ruling party official said on condition of anonymity. "After the Honam mega-project was announced, the pressure on semiconductor investment intensified markedly."
Trade Minister Kim Jung-kwan traveled to Washington on Aug. 16 for four days of investment talks, meeting US Commerce Secretary Howard Lutnick. The demand is part of a $200 billion US investment framework agreed between the two governments, with Seoul planning to announce its first batch of projects in September. A single chip fab requires between 150 trillion and 200 trillion won in capital.
The dual pressure — domestic cluster obligations plus potential US fab commitments — could strain the balance sheets of Samsung and SK Hynix, which together with Micron control roughly 90 percent of global DRAM supply. SK Hynix is already committing tens of trillions of won to a new memory fab in Japan's Miyagi prefecture, and its CEO has warned that 2027 will be "the worst year in the industry's history from the supply perspective."
The US-Korea investment framework, formalized in a memorandum of understanding signed in November, contemplates a special purpose vehicle structure. US investment funds flow into an SPV operated by Washington, from which project-specific SPVs are created. Samsung and SK Hynix could establish joint ventures with these project SPVs, receiving large-scale funding for fab construction.
One structure under discussion involves the project SPV making an equity investment in the US subsidiary of Samsung or SK Hynix, or providing subordinated loans with fixed returns. Revenue-linked financing, where repayment tracks sales or profit, is also being considered. An industry official noted that even Japan's investment project has not yet publicly disclosed its detailed structure, suggesting the profit-sharing mechanism may be negotiated after the investment decision.
SK Group Chairman Chey Tae-won met President Lee Jae-myung on Aug. 20 for a private dinner, with Samsung Electronics Chairman Lee Jae-yong and Hyundai Motor Group Chairman Chung Eui-sun scheduled for subsequent meetings. The flurry of presidential engagement reflects the corporate sector's need to coordinate responses to US pressure while managing domestic obligations.
SK Hynix's stated willingness to build a US fab is difficult to separate from Washington's pressure, industry assessments suggest. In a recent CNBC interview, Chey said finding a suitable US site was "really difficult" but expressed willingness to proceed. Samsung, while not planning a memory fab, is reviewing additional 1.4-nanometer foundry capacity in the US following its second Taylor fab construction start.
The stakes extend beyond corporate balance sheets. Memory chip prices have surged more than 500 percent in 12 months as Samsung, SK Hynix, and Micron redirect production toward high-bandwidth memory for AI accelerators. SK Hynix's record $26.5 billion Nasdaq ADR offering in July — the largest US listing by a foreign company — shows the sector's financial firepower, but also its exposure to geopolitical crosscurrents. Micron shares have climbed nearly 670 percent in the past year, with SK Hynix up about 470 percent and Samsung over 250 percent.
The last time Korean chipmakers faced coordinated US pressure on DRAM pricing was in 2005, when Samsung and Hynix pleaded guilty to price-fixing and paid combined fines of $485 million. The current pressure targets investment location rather than pricing, but the precedent of Washington using legal and political leverage against Korean memory makers remains relevant.
Korea's government maintains that semiconductor investment is not the first target of US investment negotiations, but industry sources expect the issue to remain on the table over the medium term. With Seoul planning to announce its first batch of US investment projects in September, the coming weeks will test whether Korean chipmakers can balance Washington's demands with domestic cluster commitments and the global memory supply crunch.
This article is for informational purposes only and does not constitute investment advice.
