Treasury share disposal: results report

What happened

Treasury Share Disposal: Results Report 6.2 SK hynix Inc.

To the Governor of the Financial Supervisory Service August 21, 2026

Company name: SK hynix Inc. Representative Director: Kwak No-jeong Head office address: 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do (Phone) 031-5185-4114 (Website) http://www.skhynix.com Preparer: (Title) Head of Finance (Name) Kim Woo-hyun (Phone) 031-5185-4114

1. Name and address of the issuer a. Name: SK hynix Inc. b. Address: 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do

2. Matters concerning the disposal report a. Filing date of the material event report: August 7, 2026 b. Disposal period: August 8, 2026 to September 7, 2026 c. Class and number of shares subject to the disposal report: registered common shares, 82 shares total

3. Disposal details (unit: KRW, shares) 2026.08.19: common shares, recipient: independent director; order 82; disposed 82; price per share 1,500,000; total disposal value 123,000,000; brokerage: SK Securities; financial investment business ID 00131850 Total: disposed 82; price per share 1,500,000; total disposal value 123,000,000 - The price per share above is the closing price on the respective disposal date.

4. Whether the disposal report and the actual disposal match Planned shares to be disposed (shares): common shares 82; other shares - Total shares disposed (shares): common shares 82; other shares - Match: Matched Reason if a difference occurred: -

5. Treasury share holdings after disposal (as of August 21, 2026) (unit: KRW million, shares, %) Holdings under Article 165-3 (A): common shares 1,625,769 shares, 0.2%, total value KRW 92,683 million Holdings under trust contracts per Article 165-3 (B): - Total (A+B): common shares 1,625,769 shares, 0.2%, KRW 92,683 million