SK hynix to expand production capacity in China as it mulls Solidigm IPO, report claims — second phase of fab could boost local production by 50%

SK hynix has resumed investments in its fab in Dalian, China, which is operated by its Solidigm subsidiary, and plans to boost its output by 50% already in 2027, reports Sedaily. Coincidentally, the company is mulling listing some of Solidigm’s shares on NASDAQ to raise capital, but to retain control over its North America-based subsidiary, according to The Korea Herald.

After SK hynix acquired Intel’s 3D NAND and SSD business in 2021 and formed its Solidigm subsidiary shortly after, it suspended any expansions of Solidigm’s capacity in China partly due to the memory market downturn in 2022 – 2023 and partly due to U.S. export controls that curb exports of advanced fab tools to China. However, as demand for solid-state storage is setting records in general and demand for Solidigm’s high-capacity SSDs is exceptionally strong, SK hynix is reconsidering its capacity plans for the Dalian fab just in time for Solidigm’s initial public offering.

Following a four-year pause, Solidigm has reportedly resumed investment in its Dalian facility in China this year. The company has completed construction of the second phase of the fab and is preparing to start installing production equipment as early as November, the report claims. The facility is expected to begin mass production of floating gate 3D NAND flash in the first half of 2027, if the report is accurate.

The second phase of Solidigm’s fab in Dalian is reportedly designed for a wafer output capacity of around 50,000 wafer starts per month (WSPM). Combined with approximately 100,000 WSPM at the existing first phase of the facility, the new phase would boost Solidigm’s NAND production capacity in Dalian by roughly 50%, to around 150,000 WSPM.

Late last year, the U.S. government granted SK hynix and Samsung annual licenses to ship semiconductor production equipment that contains technologies developed in America to their Chinese fabs through 2026, which replaced their previous open-ended Validated End User (VEU) exemptions. As a result, both companies can now upgrade their fabs in the People’s Republic and even use new process technologies there.

Solidigm, for example, intends to start making floating gate 3D QLC NAND memory with over 200 active layers at its Dalian facility in the second half of 2026, which was made possible by the timely tool upgrades. The additional capacity will further increase bit output of the Dalian campus, which in turn will enable Solidigm to produce its 245TB-class SSDs due to be introduced in the coming months in decent quantities, sometimes in 2027.

Solidigm, which controls roughly a quarter of the data center-grade SSD market, is a crown jewel in SK hynix’s portfolio as it makes unique products that are sold at a premium and are in high demand. Listing Solidigm on NASDAQ would enable SK hynix to gain capital (up to $7 billion, if unofficial reports are correct), but retain control over the precious asset. The money that SK hynix will raise should be roughly enough to expand Solidigm’s capacity and increase output of premium data center-grade solid-state drives.

It should be noted that SK hynix did not officially confirm the Solidigm IPO plan last week, as its regulatory filing on August 5 said that Solidigm was considering various ways to improve its competitiveness, but the final decision is yet to be made.