SK hynix finalized its $9 billion acquisition of Intel's NAND and SSD business in March 2025, taking full ownership of Solidigm. The Korean memory maker told the US Securities and Exchange Commission last week that "no matters have been determined" regarding a reported 5 trillion won ($3.6 billion) pre-IPO capital raise by the subsidiary.

The disclosure responded to an August 5 Korea Economic Daily report that Solidigm was pursuing the pre-IPO fundraising. SK hynix committed to update markets "either when specific details are confirmed or within three months of the date of this report."

What does SK hynix actually own?

Solidigm operates a Dalian, China NAND fab through SK Semiconductor (Dalian) Co., a separate SK hynix entity. Plant 1 runs at full production. Plant 2 construction resumed after a prior downturn. The unit includes a NAND and SSD research operation in Rancho Cordova, California, alongside California-based sales headquarters.

SK hynix paid $7 billion at the 2021 closing. The remaining $1.9 billion cleared in March 2025. SK hynix is now establishing AICo, a US-based AI company that will hold Solidigm.

What is the market signaling?

Seoul Economic Daily reported at the end of August that former SK hynix president Roh Jong-won launched Techbridge Investment, a US private equity firm, to participate in a future Solidigm IPO. Roh architected the Intel NAND acquisition as SK hynix's CFO and participated in the Kioxia investment through Bain Capital.

Korea's SE Daily reported that SK hynix has internally valued Solidigm at 50 trillion won ($36 billion), targeting a 10 trillion won ($7.2 billion) raise. Institutional investors including Mubadala, the UAE sovereign wealth fund, have been linked through Goldman Sachs as lead manager. SK hynix has never formally confirmed an IPO trajectory.

How does Solidigm's technology differ from SK hynix's?

Solidigm's 3D NAND uses floating gate technology, separate from SK hynix's charge trap architecture. Solidigm's current generation reaches 192 layers, focusing on QLC for high-capacity drives. The company plans to ship 245 TB SSDs by year-end, using more than 200 layers with lateral and vertical cell scaling.

SK hynix's V10 NAND pushes layer count to 375 while Solidigm's current-generation floating gate technology stops at 192 layers, a gap that US export controls will likely widen. Solidigm's Dalian operations cannot adopt SK hynix's advanced charge trap nodes.

The Solidigm portfolio also resells mature SK hynix NAND. The PS1010 direct-attach SSD uses SK hynix v7 176-layer TLC NAND from Cheongju, South Korea.

What is the Kioxia complication?

SK hynix holds its Kioxia stake through a convertible bond in BCPE Pangea Cayman2, a Bain Capital affiliate from the 2018 Toshiba memory consortium. Toshiba is reducing its Kioxia holding. SK hynix is now Kioxia's largest shareholder, without direct share ownership or voting rights.

SK Group Chairman Chey Tae-won told Japan's Asahi Shimbun that joint NAND production with Kioxia is "one option," alongside a standalone SK hynix fab in Japan. He said: "If SK hynix is included in Kioxia's future strategy, we are prepared to become a partner at any time."

What happens next?

The chairman's comments preceded any public Kioxia response. SK hynix wants additional NAND manufacturing capacity located outside both Korea and China to manage geopolitical supply chain risk and serve global customer demand. The Dalian export restrictions, unresolved Solidigm corporate structure, and Kioxia relationship all remain open. The SEC disclosure gives SK hynix until early November before its next required update.