Form 8-A12B SK hynix Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) OR (g) OF

THE SECURITIES EXCHANGE ACT OF 1934

SK hynix Inc.

(Exact name of registrant as specified in its charter)

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☑

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement file number to which this form relates: 333-296987.

Securities to be registered pursuant to Section 12(g) of the Act: None

INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 1. Description of Registrant’s Securities to be Registered

For a description of the securities of SK hynix Inc. (the “Registrant”) being registered hereunder, reference is made to the information set forth under the headings “Description of Articles of Incorporation and Capital Stock” and “Description of American Depositary Shares” contained in the Registrant’s Registration Statement on Form F-1 (File No. 333-296987), filed with the U.S. Securities and Exchange Commission (the “Commission”), including, without limitation, any post-effective amendment filed pursuant to Rule 462(b) under the U.S. Securities Act of 1933, as amended, and in any form of prospectus subsequently filed by the Registrant with the Commission pursuant to Rule 424(b) under the U.S. Securities Act of 1933, as amended, which prospectus shall be deemed to be incorporated by reference herein.

Item 2. Exhibits

Under the “Instructions as to Exhibits” section of Form 8-A, no exhibits are required to be filed because no other securities of the Registrant are to be registered on the Nasdaq Stock Market LLC and the securities to be registered hereby are not being registered pursuant to Section 12(g) of the U.S. Securities Exchange Act of 1934, as amended.

SIGNATURE

Pursuant to the requirements of Section 12 of the U.S. Securities Exchange Act of 1934, as amended, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

Date: July 9, 2026