v3.26.1
Statement of Cash flows (Details 1) - Income And Expenses From Operating Activities [Member] - KRW (₩)
₩ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
IfrsStatementLineItems [Line Items]      
Other non-current non-financial assets ₩ (118,649) ₩ 698,657
Other current non-financial assets 578,126 54,560 (2,708,583)
Accounts receivable — trade, net 4,989,162 (2,665,062) 7,951,197
Accounts receivable — other, net 939,918 (346,964) (303,948)
Trade and other payables (8,056,159) (447,975) (19,972,438)
Inventories, net (727,447) (1,971,804) 3,329,293
Contract liabilities 646,601
Value added tax receivables 9,462 145,204 1,965,135
Value added tax payables (20,715)
Other current liabilities 128,352 593,949 299,334
Other non-current financial assets 100,000
Liabilities due to payment of benefits (316,267) (496,920) (658,367)
Contract assets 643,945
Long-term investment securities (2,449,482)
Payments for Investments in associates (66,000)
Proceeds from Investments in associates 47,892
Other current provisions (17,170)
Other non-current liabilities 1,397,592
Total ₩ (2,290,839) ₩ (4,436,355) ₩ (10,098,377)