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Provision for credit loss allowance | 12 Months Ended
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Dec. 31, 2025
Provision for allowance for credit loss [Abstract] |
Provision for allowance for credit loss |
41. | Provision for credit loss allowance
Provision for credit loss allowance on financial assets for the years ended December 31, 2023, 2024 and 2025 are as follows:
|  | 2023 |  |  | 2024 |  |  | 2025 |
Allowance provided: |  |  |  |  |  |  |  |  |  |  |  |
Loans at amortized cost |  | W | (2,114,442 | ) |  |  | (1,862,013 | ) |  |  | (2,014,137 | )
Other financial assets at amortized cost |  |  | (90,770 | ) |  |  | (113,662 | ) |  |  | (70,035 | )
Securities at FVOCI |  |  | (2,271 | ) |  |  | — |  |  |  | (25,915 | )
Unused credit line and financial guarantee |  |  | (37,156 | ) |  |  | (41,910 | ) |  |  | — |
|  |  | (2,244,639 | ) |  |  | (2,017,585 | ) |  |  | (2,110,087 | )
Allowance reversed: |  |  |  |  |  |  |  |  |  |  |  |
Securities at FVOCI |  |  | — |  |  |  | 2,699 |  |  |  | — |
Securities at amortized cost |  |  | 136 |  |  |  | 1,612 |  |  |  | 1,243 |
Unused credit line and financial guarantee |  |  | — |  |  |  | — |  |  |  | 105,879 |
|  |  | 136 |  |  |  | 4,311 |  |  |  | 107,122 |
|  | W | (2,244,503 | ) |  |  | (2,013,274 | ) |  |  | (2,002,965 | )

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