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Inventories
 12 Months Ended
Dec. 31, 2025
Classes of current inventories [abstract]  
Inventories Inventories
Inventories as of December 31, 2024 and 2025, are as follows:
(In millions of Korean won)December 31, 2024December 31, 2025
Acquisition
 cost		Valuation
 allowance		Carrying
amount		Acquisition
 cost		Valuation
 allowance		Carrying
amount
Merchandise₩1,005,606 (99,517)906,089 423,084 (31,188)391,896 
Others149,106 ₩(524)148,582 112,989 (55)112,934 
Total₩1,154,712 (100,041)1,054,671 536,073 (31,243)504,830 
Cost of inventories recognized as expenses for the year ended December 31, 2025 amounts to ₩4,287,105 million (2023: ₩3,386,069 million, 2024: ₩3,500,950 million) and reversal valuation loss on inventory amounts to ₩68,798 million for the year ended December 31, 2025 (2023: ₩6,205 million reversal valuation loss, 2024: ₩2,174 million valuation loss).