[News] SK Hynix Rumored to Propose Collaboration with Kioxia for HBM Production in Japan

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South Korean memory giant SK Hynix is reportedly exploring a collaboration with Japanese NAND flash memory manufacturer Kioxia to produce High Bandwidth Memory (HBM) for AI applications, as per MoneyDJ citing Jiji Press.

According to Jiji Press’ report on March 1st, it is estimated that production will take place at the Japanese plant jointly operated by Kioxia and Western Digital (WD). Kioxia, on the other hand, will evaluate the proposed collaboration based on semiconductor market conditions and its relationship with WD.

The report highlights that HBM, a type of DRAM primarily used in AI servers, is experiencing a surge in demand worldwide, led by NVIDIA. Moreover, according to a previous TrendForce press release, the three major original HBM manufacturers held market shares as follows in 2023: SK Hynix and Samsung were both around 46-49%, while Micron stood at roughly 4-6%.

For SK Hynix, leveraging Kioxia’s existing plants in Kitakami, Iwate Prefecture, and Yokkaichi, Mie Prefecture, Japan, to produce HBM would enable the rapid establishment of an expanded production system.

Meanwhile, the joint-operated Japanese plants of Kioxia and WD currently only produce NAND Flash. If they were to produce the most advanced DRAM in the future, it would also contribute to Japan’s semiconductor industry revitalization plan.

The report further addresses that SK Hynix has indirectly invested approximately 15% in Kioxia through Bain Capital, a U.S.-based investment firm. Bain Capital is reportedly negotiating with SK Hynix behind the scenes, seeking to revive the Kioxia/WD merger. However, as per sources cited in Jiji Press’ report, “this collaboration and the merger are two separate discussion matters.”

According to a previous report from Asahi News on February 23, Kioxia and WD are expected to restart merger negotiations at the end of April. Although the merger negotiations between the two parties hit a roadblock last autumn, both are facing pressure to expand their scale for survival. However, whether the two parties can ultimately reach a merger agreement remains uncertain.

As per TrendForce’s  data for 3Q23, Samsung maintained its position as the top global NAND flash memory manufacturer, commanding a significant market share of 31.4%. Following closely, SK Group secured the second position with a 20.2% market share. Western Digital occupied the third position with a market share of 16.9%, while Japan’s Kioxia held a 14.5% market share.

Asahi News further indicates that if Kioxia and WD, the 2 companies which all manufacture NAND Flash products are to merge, their scale will rival that of the global market leader, Samsung Electronics.

The Japanese government reportedly views the Kioxia/WD merger as a “symbol” of Japan-US semiconductor cooperation and has provided support. However, the merger negotiations hit an impasse last fall, reportedly due to opposition from SK Hynix, indirectly invested in Kioxia.

Read more

• [News] NAND Flash Manufacturers Kioxia and WD Reportedly Set to Resume Merger Talks in Late April
• [News] Kioxia and Western Digital Resume Merger Negotiations? Rumors of Bain Negotiating with SK Hynix Surface

(Photo credit: Kioxia)