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Research and Development Expenditures Recognized as Expenses (Tables) | 12 Months Ended
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Dec. 31, 2025
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Summary of Research and Development Expenditures Recognized as Expenses | Research and development expenditures recognized as expenses for the years ended December 31, 2023, 2024 and 2025 were as follows:
(in millions of Won) |  | 2023 |  |  | 2024 |  |  | 2025 |
Administrative expenses |  | ￦ | 175,167 |  |  |  | 207,557 |  |  |  | 195,255 |
Cost of sales |  |  | 343,242 |  |  |  | 348,003 |  |  |  | 331,924 |
|  | ￦ | 518,409 |  |  |  | 555,560 |  |  |  | 527,179 |

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