SK hynix says no decision yet on Japan chip plant

SK hynix responds to a Korea Exchange inquiry, stating Japan facility plans are under review but no decisions have been made and further disclosure will follow.

Available on EDGAR 09/18/2026 - 06:03 AM EDT Accepted by SEC EDGAR 09/18/2026 - 06:02 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

SK hynix Inc. (SKHY) reports that it received a disclosure inquiry from the Korea Exchange on August 21, 2026 regarding media reports that it is considering building a semiconductor facility in Japan.

The company states that it is reviewing various measures, including establishing additional production bases to strengthen its memory business, but that no decisions or specific plans have been determined as of this report. SK hynix indicates it will provide a further disclosure when concrete details are confirmed or within three months of this report’s date.

Key Figures

Disclosure inquiry date: August 21, 2026 Form 6-K report date: September 18, 2026 Disclosure follow-up window: Three months

3 metrics

Disclosure inquiry date August 21, 2026 Date the Korea Exchange made its disclosure inquiry to SK hynix

Form 6-K report date September 18, 2026 Date the report responding to the disclosure inquiry was signed

Disclosure follow-up window Three months Period within which SK hynix will make a further disclosure if no details are confirmed earlier

Key Terms

disclosure inquiry, foreign private issuer, current report on Form 6-K, production bases

4 terms

disclosure inquiry regulatory

"the Korea Exchange made a disclosure inquiry to SK hynix Inc."

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-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.

current report on Form 6-K regulatory

"See the current report on Form 6-K titled “Response to Disclosure"

production bases technical

"including establishing additional production bases, to strengthen the competitiveness"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did SK hynix (SKHY) clarify about media reports of a Japan semiconductor facility?

SK hynix clarified that it is reviewing options, including building additional production bases such as a semiconductor facility in Japan, but no matters have been determined and there are no specific confirmed plans yet.

Why did SK hynix (SKHY) issue this Form 6-K in September 2026?

The company issued this Form 6-K in response to a disclosure inquiry from the Korea Exchange dated August 21, 2026, which asked about media reports that SK hynix was considering building a semiconductor facility in Japan.

Has SK hynix (SKHY) decided to build a semiconductor facility in Japan?

No. SK hynix states that, while it is reviewing various measures including possible additional production bases, no matters have been determined regarding a semiconductor facility in Japan as of the date of the report.

When will SK hynix (SKHY) provide further information on potential new production bases?

SK hynix states it will make a further disclosure either when specific details are confirmed or within three months of the date of this September 18, 2026 report.

What prior filing is related to this SK hynix (SKHY) disclosure inquiry response?

The report references a related current report on Form 6-K titled “Response to Disclosure Inquiry (Rumors or Media Reports)” that SK hynix furnished on August 21, 2026.

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

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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 SEPTEMBER 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 ☐

Response to Disclosure Inquiry (Rumors or Media Reports)

On August 21, 2026, the Korea Exchange made a disclosure inquiry to SK hynix Inc. (the “Company”) regarding media reports that the Company is considering building a semiconductor facility in Japan.

The Company hereby clarifies that, while it is reviewing various measures, including establishing additional production bases, to strengthen the competitiveness of its memory business, 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 three months of the date of this report.

 Related Disclosure: See the current report on Form 6-K titled “Response to Disclosure Inquiry (Rumors or Media Reports)” furnished by the Company on August 21, 2026.

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: September 18, 2026