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Dividend income (Tables) | 12 Months Ended
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Dec. 31, 2025
Dividend income [Abstract] |
Summary of Dividend income | Dividend income for the years ended December 31, 2023, 2024 and 2025 are as follows:
|  | 2023 |  |  | 2024 |  |  | 2025 |
Securities at FVTPL |  | W | 121,347 |  |  |  | 152,990 |  |  |  | 138,353 |
Securities at FVOCI |  |  | 60,139 |  |  |  | 86,107 |  |  |  | 71,328 |
|  | W | 181,486 |  |  |  | 239,097 |  |  |  | 209,681 |

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