Why Kioxia Is Rejecting an SK Hynix Manufacturing Tie-Up

Kioxia CEO Hiroo Ota has pushed back on joint NAND manufacturing with SK Hynix, not necessarily every connection between the companies. He points to potential antitrust hurdles and the difficulty of fitting another partner into Kioxia’s existing manufacturing arrangements with Sandisk. At the same time, he says Kioxia wants to avoid steep price increases that could weigh on data-center customers’ longer-term AI investment. 257

The distinction matters: reports describe SK Hynix as a Kioxia stakeholder and cite technology links between the companies, but that is separate from an agreement to make NAND together. 113 And while Ota has spoken about price restraint, the available reporting does not lay out a specific alternative capacity plan or investment schedule.

Why a manufacturing partnership is difficult

Kioxia and Sandisk already operate manufacturing facilities together. Ota has said a three-company production arrangement cannot simply be added on, pointing to both antitrust concerns and the challenge of coordinating with the existing Sandisk partnership. 257

That is a narrower position than rejecting all cooperation with SK Hynix. The reported financial and technology ties do not, on their own, establish that the companies are planning joint NAND production; Kioxia has said they are not discussing it. 110

Price restraint is meant to protect future demand

Ota’s other message is about customers’ ability to keep investing. He has instructed Kioxia’s sales team not to demand steep price increases in negotiations with data-center operators, arguing that excessive costs could undermine longer-term AI demand. 35

This should not be read as a promise that NAND prices will fall—or even remain unchanged. Reporting on Ota’s comments says Kioxia’s immediate priority is to keep prices around their current high levels, while not ruling out future increases. 512

What Kioxia has—and has not—said about supply

AI-related demand is putting pressure on memory supply, but Ota’s comments do not identify a specific new production route to replace a possible SK Hynix tie-up. One report says Kioxia would need to find other ways to address supply and price pressures; it does not provide a detailed schedule for additional capacity or explain how investment and risk would be allocated with Sandisk. 10

The reporting also does not establish which long-term NAND contracts Kioxia has secured, what new memory technologies it plans to bring to market, or how it intends to respond to Chinese competitors. Those questions remain open rather than being answered by the rejection of a joint-production deal.

The practical takeaway

Kioxia is drawing a line between existing relationships and shared manufacturing. Ota says antitrust concerns and the Sandisk partnership make the latter difficult, while his price guidance signals a desire to preserve customer demand—not a guaranteed price ceiling or a disclosed plan to expand supply. 2510