SK Hynix has become the largest shareholder in Kioxia through a special purpose vehicle structure after Toshiba reduced its stake in the Japanese NAND Flash maker, according to a Kioxia disclosure released on Aug. 11. Kioxia has already flagged the arrangement in its latest annual report as a potential conflict-of-interest risk, drawing attention to possible antitrust issues.
Toshiba cuts stake, SPC2 becomes Kioxia’s largest single shareholder
Kioxia said Toshiba sold shares in seven transactions between July 15 and Aug. 3, lowering its holding from 15.10% to about 14.12%. That move pushed Toshiba out of the top shareholder position.
The new largest single shareholder is BCPE Pangea Cayman2, or SPC2, a special purpose company established by Bain Capital. SPC2 now holds 14.19% of Kioxia.
The key point in the structure is that SK Hynix holds convertible bonds tied to nearly all of SPC2’s voting rights. In legal terms, that leaves the South Korean chipmaker one step away from gaining effective influence over Kioxia’s voting power.
The arrangement dates back to Bain Capital’s 2018 buyout
SK Hynix’s capital ties to Kioxia trace back to Bain Capital’s 2018 leveraged buyout of the company. At the time, SK Hynix invested about 4 trillion won in Kioxia through two special purpose companies.
One of them, SPC1, was jointly funded by SK Hynix and Bain Capital. Bain formally exited that vehicle in June this year by selling all of its stake, and SK Hynix also cleared its position in SPC1.
SPC2, however, remains in place. SK Hynix still holds the convertible bond position linked to that entity, valued at about 1.3 trillion won, and that holding now sits at the center of the ownership shift.
Convertible bond conversion could give SK Hynix indirect voting control over 14.19%
The importance of the SPC2 bond lies in its conversion option. If SK Hynix chooses to convert the CB into shares, it could obtain nearly all voting rights in SPC2 and indirectly control the voting power attached to Kioxia’s 14.19% stake held by that vehicle.
That would shift SK Hynix from creditor status to a shareholder with real influence.
Kioxia annual report cites potential conflict of interest
In its latest annual report, Kioxia explicitly listed SK Hynix’s holding of SPC2 voting rights through the convertible bond as a risk factor and said the structure creates a potential conflict of interest.
Kioxia said SK Hynix is one of the major players in the global NAND Flash market and a direct competitor. If SK Hynix were to obtain voting rights through conversion, it could gain room to influence Kioxia’s management direction, including technology development, pricing strategy, and capacity allocation.
Three barriers still stand in the way of actual control
Even though SK Hynix has, in effect, moved into the top shareholder position through SPC2, several hurdles remain before it could exercise real control.
- Contractual restrictions: The 2018 acquisition agreement states that without Kioxia’s consent, SK Hynix’s voting rights cannot exceed 15%. That restriction remains in force until 2028.
- Regulatory review: Any conversion of the CB would require antitrust clearance from competition authorities in Japan, the United States, the European Union, China, and other major jurisdictions named by Kioxia.
- Political resistance: The Japanese government has long treated the domestic semiconductor supply chain as a strategic national asset, making the prospect of a South Korean rival taking control of Japan’s largest NAND producer highly difficult.
A strategic option that could reshape competition
SK Hynix now holds what amounts to a strategically significant embedded option in Kioxia. Whether it converts the bond, and when, could affect the competitive balance across the NAND industry.
For Kioxia, the structure already presents a material concern in financing flexibility, technology partnerships, and defenses against potential takeover activity.