[News] SK hynix Reportedly Weighs Japan Memory Plant; U.S. Pressure, Korean Approval Could Complicate Plans

SK hynix’s potential memory investment in Japan could face hurdles despite strong local interest. According to Nikkei, Japanese regions are competing for the investment, with Miyagi Prefecture in northeastern Japan among the local governments seeking to attract an SK hynix chip plant. The Kanto region around Tokyo, Hokkaido, and Kyushu have also been reported as possible destinations. The biggest hurdle, however, could come from the South Korean government.

As Nikkei notes, semiconductors are designated as a national strategic industry in South Korea, requiring chipmakers to obtain government approval before establishing production facilities overseas to prevent advanced technologies from moving abroad. Most industry observers believe overseas production of advanced AI-related chips would be unlikely to receive approval.

Meanwhile, SK hynix has confirmed that Japan is among the options it is exploring. According to Bloomberg, SK Group Chairman Chey Tae-won said on the sidelines of South Korea-Japan chamber of commerce meetings in Sendai that the company is considering locations across Japan with sufficient power and water, but declined to identify potential partners, locations, or products. While reports have also pointed to a possible joint venture, Yonhap News later noted that SK Group said investment in Japan is among the ideas under consideration but denied that it is considering a joint-venture fab.

Nikkei also notes that Japan is not alone in seeking further SK hynix investment. The company recently broke ground on a more than US$4 billion HBM facility in Indiana, though the project focuses on advanced packaging and testing rather than front-end wafer fabrication. The Seoul Shinmun also notes that expanding production capacity both at home and abroad would require substantial capital. It adds that if SK hynix moves forward with a plant in Japan, concerns remain that the U.S. could step up pressure for additional investment.

As noted by Hankyung, citing Bloomberg, U.S. Commerce Secretary Howard Lutnick said in July that he wanted Samsung Electronics and SK hynix to build factories in the U.S. and that the government was discussing potential investment with both companies, though he provided no further details.

Japan’s Chip Ecosystem Strengthens Its Appeal

Japan offers an established semiconductor ecosystem that could make it an attractive production base for SK hynix. Bloomberg notes that the country is home to a broad network of the company’s suppliers, from materials maker Namics to chip equipment giant Tokyo Electron, as well as customers including Sony and Nintendo. Rival Micron also operates a semiconductor plant in Hiroshima. The report adds that the Japanese government has shown a willingness to provide substantial subsidies to international chipmakers, including TSMC, to expand production in the country.

SK hynix also has existing ties to Japan’s memory industry. As noted by Yonhap News, the company holds a stake of more than 14% in flash memory maker Kioxia through a Bain Capital special-purpose company.

Read more

• [News] SK hynix Breaks Ground on Indiana Packaging Plant, Eyes HBM4E by 3Q29; CEO Sees Tight Supply Through 2030
• [News] Samsung, SK hynix 1H26 Chip Facility Investment Up 35%; NVIDIA Not Among Samsung’s Top Five Customers

(Photo credit: Korea Chamber of Commerce and Industry)