ADR Issuance of ~$26.5B via 17.79M New Shares to Overseas Institutional Investors

SECURITIES ISSUANCE PERFORMANCE REPORT Version: 6.0 SK Hynix Inc. Securities Issuance Performance Report To: Chairman, Financial Supervisory Service Date: July 15, 2026 Company Name: SK Hynix Inc. Representative Director: Kwak Noh-jung Head Office Address: 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do Tel: 031-5185-4114 Website: http://www.skhynix.com Prepared by: (Title) Head of Finance Division (Name) Kim Woo-hyun Tel: 031-5185-4114 --- I. ISSUANCE OVERVIEW 1. Company Overview Listing Category: KOSPI (Exchange-listed) Company Size: Large Enterprise Industry Classification: Manufacture of Electronic Components, Computers, Visual/Audio & Communications Equipment 2. Issuance Overview (Unit: KRW) Category | Total Issuance Amount | Notes Other | 39,890,534,790,000 | (Note) (Note) The Company resolved to issue American Depositary Receipts (ADRs) totaling USD 26,507,100,000 to overseas institutional investors, using the 17,790,000 newly issued common shares as the underlying shares. Ten (10) ADRs are issued per one (1) underlying common share. Accordingly, the total issuance amount of KRW 39,890,534,790,000 was calculated by multiplying the USD/KRW reference rate of 1,504.90 (as published by Seoul Money Brokerage Services, Ltd. on the payment date of July 14, 2026) by the public offering price of USD 1,490 for 10 ADRs—equivalent to KRW 2,242,301 per underlying share—and then multiplying by the number of shares. --- II. SUBSCRIPTION AND ALLOTMENT 1. Subscription and Payment Schedule Category | Subscription Open | Subscription Close | Payment Date Third-Party Allotment Rights Offering | July 14, 2026 | July 14, 2026 | July 14, 2026 (Note) The Company is issuing the 17,790,000 new shares by depositing them with Citibank, N.A., the overseas depositary, and using those deposited underlying shares as the basis for issuing a total of USD 26,507,100,000 in American Depositary Receipts (ADRs). 2. Underwriting Amount by Underwriter (Unit: KRW) Underwriter | Underwritten Qty | Underwritten Amount | Ratio (%) | Notes — | — | — | — | — Total | — | — | — | — 3. Subscription and Allotment Status (Unit: KRW, shares, %) Category | Initial Allotment Qty | Initial Allotment Ratio | Subscription Count | Subscription Qty | Subscription Amount | Subscription Ratio | Final Allotment Count | Final Allotment Qty | Final Allotment Amount | Final Allotment Ratio Third-Party Allotment Rights Offering | 17,790,000 | 100% | 1 | 17,790,000 | 39,890,534,790,000 | 100% | 1 | 17,790,000 | 39,890,534,790,000 | 100% Total | 17,790,000 | 100% | 1 | 17,790,000 | 39,890,534,790,000 | 100% | 1 | 17,790,000 | 39,890,534,790,000 | 100% (Note) The Company resolved to issue ADRs totaling USD 26,507,100,000 to overseas institutional investors, using the 17,790,000 newly issued shares as the underlying shares. Ten (10) ADRs are issued per one (1) underlying common share. The amount of KRW 39,890,534,790,000 was calculated by converting the public offering price of USD 1,490 for 10 ADRs at the USD/KRW reference rate of 1,504.90 (as published by Seoul Money Brokerage Services, Ltd. on the payment date of July 14, 2026) to KRW 2,242,301 per share, then multiplying by the number of shares. 4. Allotment by Method for General (Retail) Investors Category | Allotted Qty (shares) | Weight (%) Equal Allocation Method | — | — Proportional Method | — | — Total | — | — 5. Allotment by Lock-Up Commitment Period for Institutional Investors (Unit: shares, %) [All domestic and foreign institutional investor categories show zero allotment, as the entire issuance was placed directly with overseas institutions as a third-party allotment.] --- III. CHANGES IN MAJOR SHAREHOLDER OWNERSHIP BEFORE AND AFTER THE RIGHTS OFFERING (Unit: shares, %) Item | Category | Share Class | Pre-Offering Shares | Pre-Offering Ratio | Post-Offering Shares | Post-Offering Ratio | Notes Largest Shareholder | SK Square Co., Ltd. | Common | 146,124,531 | 20.50% | 146,124,531 | 20.00% | (Note 1) Subtotal (Largest Shareholder Group) | Common | 146,124,531 | 20.50% | 146,124,531 | 20.00% | — ≥5% Shareholders: National Pension Service | Common | 57,439,774 | 8.06% | 57,439,774 | 7.86% | (Note 2) BlackRock Fund Advisors | Common | 36,407,157 | 5.00% | 36,407,157 | 4.98% | (Note 3) Subtotal (≥5% Shareholders) | Common | 93,846,931 | 13.06% | 93,846,931 | 12.85% | — Grand Total | 239,971,462 | 33.56% | 239,971,462 | 32.85% | — (*) Based on the most recent date available for practical use by the Company. (Note 1) Sum of 146,100,000 shares held by SK Square Co., Ltd. (the largest shareholder) and 24,531 shares held by specially related persons. (Note 2) Post-offering ownership ratio calculated as of December 31, 2025 — may differ from the current actual shareholding. (Note 3) Post-offering ownership ratio calculated based on the Large Shareholding Report (reference date: February 10, 2026) submitted on February 20, 2026 — may differ from the current actual shareholding. --- IV. SECURITIES DELIVERY DATE AND OTHER MATTERS 1. Securities Delivery (Scheduled) Date Under the electronic securities system, physical new share certificates will not be issued. 2. Capital Increase Registration (Scheduled) Filing Date July 15, 2026 3. Listing (Scheduled) Date Category | Market | Scheduled Listing Date Common Shares | Korea Exchange (KRX) KOSPI Market | July 29, 2026 ADRs | Nasdaq Global Select Market | July 10, 2026 --- V. DISCLOSURE COMPLIANCE STATUS 1. Public Announcement of Confirmed Offering/Sale Price Directly and individually notified to relevant parties. 2. Subscription Announcement Directly and individually notified to relevant parties. 3. Subscription Result and Allotment Announcement Directly and individually notified to relevant parties. 4. Securities Registration Statement Disclosure a. Electronic Document: FSC/FSS Electronic Disclosure System → dart.fss.or.kr b. Filing Dates: - June 24, 2026 (Initial Securities Registration Statement) - June 30, 2026 (Amended — Content Corrections) - July 6, 2026 (Amended — Content Corrections) - July 10, 2026 (Amended — Final Offering Terms) 5. Prospectus Disclosure a. Electronic Document: FSC/FSS Electronic Disclosure System → dart.fss.or.kr b. Hard Copy: SK Hynix Inc., 2091 Gyeongchung-daero, Bubal-eup, Icheon-si, Gyeonggi-do c. Filing Dates: - June 24, 2026 (Preliminary Prospectus) - June 30, 2026 (Amended Preliminary Prospectus — Content Corrections) - July 6, 2026 (Amended Preliminary Prospectus — Content Corrections) - July 10, 2026 (Final Prospectus) --- VI. USE OF PROCEEDS 1. Funds Raised (Unit: KRW, shares) Category | Share Class | Registered Total Issuance Amount | Issue Price per Share | Shares | Total Issuance Amount (Actual) | Notes Public Offering | Common | 40,023,070,290,000 | 2,242,301 | 17,790,000 | 39,890,534,790,000 | (Note) Total (Public) | 40,023,070,290,000 | 2,242,301 | 17,790,000 | 39,890,534,790,000 | — Sale (Secondary) | Common | — | — | — | — | — Total (Sale) | — | — | — | — | — Grand Total | 40,023,070,290,000 | 2,242,301 | 17,790,000 | 39,890,534,790,000 | — (Note) The Company resolved to issue ADRs totaling USD 26,507,100,000 to overseas institutional investors, using the 17,790,000 newly issued shares as underlying shares. Ten (10) ADRs are issued per one (1) underlying common share. Accordingly, the issue price per new share is derived from the public offering price of USD 1,490 for 10 ADRs, converted at the USD/KRW reference rate of 1,504.90 published by Seoul Money Brokerage Services, Ltd. on the payment date (July 14, 2026)... 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