2025 Corporate Governance Report Filing

Amended Disclosure Corporate Governance Report Filing [000001] Corporate Governance Report Filing Statement [000002] I. Company Overview 1. Company Name: SK Hynix 2. Disclosure Period and Reporting Base Date: - Period start: 2025-01-01 - Period end: 2025-12-31 - Reporting base date: 2025-12-31 2-1. Fiscal Years (Current / Prior / Two Years Prior): - Current: 2025-01-01 to 2025-12-31 - Prior: 2024-01-01 to 2024-12-31 - Two years prior: 2023-01-01 to 2023-12-31 3. Personnel in Charge of the Corporate Governance Report: - Disclosure Officer: Kim Woo-hyun, Division Head, Finance, 031-5185-4114, ir@skhynix.com - Working-Level Staff: Seo Eun-seok, TL, IR, 031-5185-4114, ir@skhynix.com 4. Table 1-0-0: Company Overview - Largest shareholder, etc.: SK Square Co., Ltd. and 9 affiliated parties - Largest shareholder ownership ratio (%): 20.07 - Minority shareholder ownership ratio (%): 63.34 - Industry: Non-financial - Main products: DRAM, NAND, MCP (Multi-Chip Package) and other memory semiconductors, plus Foundry and other non-memory businesses - Subject to Fair Trade Act business group: Yes - Subject to Public Institution Operation Act: No - Business group name: SK Summary Financials (KRW millions): - (Consolidated) Revenue: 97,146,675 / 66,192,960 / 32,765,719 - (Consolidated) Operating profit: 47,206,319 / 23,467,319 / -7,730,313 - (Consolidated) Net income: 42,947,902 / 19,796,902 / -9,137,547 - (Consolidated) Total assets: 176,107,659 / 119,855,209 / 100,330,165 - Standalone total assets: 168,903,929 / 112,412,580 / 92,949,387 [000003] Compliance Status with Core Governance Indicators Compliance rate: 80% 5. Core Governance Indicators Compliance (Current / Previous period): - Notice of AGM convocation 4 weeks in advance: Yes / Yes - Electronic voting: Yes / Yes - AGM held outside concentrated dates: No / No (Note 1) - Provision of cash dividend predictability: Yes / Yes - Notify shareholders of dividend policy/plan at least once a year: Yes / Yes - CEO succession plan established and operated: Yes / Yes - Risk management and internal control policy established and operated: Yes / Yes - Independent director serves as board chair: Yes / Yes - Cumulative voting adopted: No / No (Note 2) - Policy to prevent appointment of executives responsible for damaging corporate value or shareholder rights: No / No (Note 3) - Board members represent diverse genders (not single-gender): Yes / Yes - Independent internal audit department exists: Yes / Yes - Internal audit body has accounting/finance expert: Yes / Yes - Internal audit body meets external auditor at least quarterly without management: Yes / Yes - Procedure ensuring internal audit body access to key management information: Yes / Yes Note 1: The 2026 AGM will be held on March 25, among the concentrated dates of March 25, 27, and 30. Note 2: See Section 4-3 (c) of this report. Note 3: See Section 4-4 (a)(3) of this report. [000004] II. Corporate Governance Status [100000] 1. General Corporate Governance Policy (a) Overall direction of governance policy and key considerations: The company believes that transparent and sound corporate governance is the foundation for securing the trust of all stakeholders, conducting reasonable and responsible management activities, and ultimately creating social value as the basis for sustainable enterprise. Through building sound governance, the company seeks to continuously achieve stability and growth, perpetually exist and develop, create value for customers, employees, and shareholders, play a key role in social and economic development, and contribute to human happiness. The board, as the company's highest decision-making body, determines core management goals and basic management policies and oversees management activities. The board is composed of a majority of outside directors with expertise across diverse fields, who review the procedural and substantive legality of decision-making and various management activities, playing a central role in securing management soundness. (b) Unique governance features of the company: (1) Independent Board Composition At the time of report submission, the board comprises 10 directors total (2 inside directors, 6 outside directors, 2 other non-executive directors), with outside directors representing a majority (60%). All outside directors are independent and have no special relationship with management. Under the Commercial Act and board regulations, to prevent conflicts of interest, they may not — without board approval — engage in transactions in the company's business area for their own or a third party's account, nor serve as unlimited-liability partners or directors of another company in the same line of business. The company has built a board centered on outside directors whose independence and expertise have been verified, with the board substantively checking and... [Translation truncated]