SK hynix says U.S. NAND plant investment undecided

SK hynix said it would disclose further details once confirmed or within one month of the report date.

Rhea-AI Filing Summary

SK hynix Inc. said its overseas subsidiary under the Solidigm brand is reviewing measures to strengthen competitiveness and expand production capacity, but no matters had been determined as of October 29, 2026. This clarification followed a Maeil Business Newspaper report describing an approximately Won 60 trillion investment in a new U.S. NAND flash memory facility. SK hynix said it would disclose further details when confirmed or within one month of the report date.

Key Figures

Reported investment: Approximately Won 60 trillion Further disclosure: Within one month

2 metrics

Reported investment Approximately Won 60 trillion New U.S. NAND flash memory facility described in a newspaper report; SK hynix said no matters had been determined.

Further disclosure Within one month SK hynix said it would disclose further details when confirmed or within one month of the report date.

Key Terms

NAND flash memory, production capacity, FOREIGN PRIVATE ISSUER

3 terms

NAND flash memory technical

"new NAND flash memory production facility"

NAND flash memory is a type of electronic storage that holds data even when power is off, used in solid‑state drives, smartphones, USB drives and many other devices. Think of it as a bookshelf that keeps your books in place without needing electricity; it lets devices store photos, apps and operating systems compactly and quickly. Investors watch NAND markets because its supply, demand, pricing and manufacturing costs strongly influence revenue, margins and cash flow for chipmakers and consumer‑electronics companies.

production capacity technical

"expand its production capacity"

Production capacity is the maximum amount of goods or services a factory, plant, or company can produce in a given time under normal operating conditions, usually expressed per day, month or year. Think of it like the number of seats in a theater or the flow from a faucet: it sets the limit on how much can be sold. For investors, capacity shows potential revenue, reveals whether a company can meet demand or needs new investment, and highlights risks of idle assets or bottlenecks.

FOREIGN PRIVATE ISSUER regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

FAQ

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Is SKHY's reported Won 60 trillion Solidigm investment confirmed?

SK hynix said no matters had been determined as of October 29, 2026. Maeil Business Newspaper had reported an approximately Won 60 trillion investment for a new U.S. NAND flash memory facility; the company said its overseas subsidiary under the Solidigm brand was reviewing measures to strengthen competitiveness and expand production capacity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/29/2026 - 06:04 AM EDT Accepted by SEC EDGAR 10/29/2026 - 06:02 AM EDT Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF OCTOBER 2026

Commission File Number: 001-43391

SK hynix Inc.

(Translation of registrant’s name into English)

2091, Gyeongchung-daero

Bubal-eup, Icheon-si

Gyeonggi-do 17336, Korea

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒     Form 40-F ☐

Clarification Regarding Rumors or Media Reports

On October 29, 2026, the Maeil Business Newspaper (also known as “Maekyung”) reported that “Solidigm,” a U.S. subsidiary of SK hynix Inc. (the “Company”), is pursuing an investment of approximately Won 60 trillion for the construction of a new NAND flash memory production facility in the United States.

The Company hereby clarifies that, while the Company’s overseas subsidiary under the brand name “Solidigm” is reviewing various measures to strengthen its competitiveness and expand its production capacity, no matters have been determined as of the date hereof. The Company will make a further disclosure either when specific details are confirmed or within one month of the date of this report.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SK hynix Inc.
(Registrant)
By:		/s/ Seonghwan Park
(Signature)
Name:		Seonghwan Park
Title:		Head of Investor Relations

Date: October 29, 2026