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Commitments and Contingencies - Summary of PF Credit Enhancements Such as Debt Assumption Supplemental Funding Agreement and Maturity of the Related Loans (Detail) ₩ in Millions | Dec. 31, 2025 KRW (₩)
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Disclosure of contingent liabilities [line items] |
Agreed amount | ₩ 2,486,755
Executed amount | 1,395,830
Total | 1,395,830
Parent [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | JB CLARK HILLS [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 45,630
Executed amount | 38,025
Total | 38,025
Associates and joint ventures [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | New Songdo International City Development, LLC [member] | Mortgage loan [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 494,000
Executed amount | 321,300
Total | 321,300
Others [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 1,947,125
Executed amount | 1,036,505
Total | 1,036,505
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Civic Center PFV [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 45,000
Executed amount | 45,000
Total | 45,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Landmark Sewoon | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 50,000
Executed amount | 50,000
Total | 50,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | DAON INP Co., Ltd. | Main PF [member] | Joint guarantee [Member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 78,000
Executed amount | 60,000
Total | 60,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Jeonju Eco-city | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 53,300
Executed amount | 22,600
Total | 22,600
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Alpha City HG Ltd [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 60,000
Executed amount | 60,000
Total | 60,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Island One [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 50,000
Executed amount | 50,000
Total | 50,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Hankook Asset Development Co Ltd [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 48,000
Executed amount | 40,000
Total | 40,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Daegu MBC Site Mixeduse Development PFV [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 80,000
Executed amount | 80,000
Total | 80,000
Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 1,359,516
Executed amount | 592,214
Total | 592,214
Others [member] | POSCO DX Co., Ltd.(formerly, POSCO ICT) [member] | Other projects [member] | Jeonnong schoo keeper co. and others [member] | Main PF [member] | Supplemental funding agreement [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 123,309
Executed amount | 36,691
Total | 36,691
3~6 month |
Disclosure of contingent liabilities [line items] |
Total | 137,900
3~6 month | Associates and joint ventures [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | New Songdo International City Development, LLC [member] | Mortgage loan [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 74,500
3~6 month | Others [member] |
Disclosure of contingent liabilities [line items] |
Total | 63,400
3~6 month | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 63,400
6 months ~1 year |
Disclosure of contingent liabilities [line items] |
Total | 108,799
6 months ~1 year | Parent [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | JB CLARK HILLS [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 38,025
6 months ~1 year | Others [member] |
Disclosure of contingent liabilities [line items] |
Total | 70,774
6 months ~1 year | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Jeonju Eco-city | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 22,600
6 months ~1 year | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 48,174
1 year ~2 years |
Disclosure of contingent liabilities [line items] |
Total | 381,247
1 year ~2 years | Associates and joint ventures [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | New Songdo International City Development, LLC [member] | Mortgage loan [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 246,800
1 year ~2 years | Others [member] |
Disclosure of contingent liabilities [line items] |
Total | 134,447
1 year ~2 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Hankook Asset Development Co Ltd [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 40,000
1 year ~2 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 94,447
2 years ~3 years |
Disclosure of contingent liabilities [line items] |
Total | 346,442
2 years ~3 years | Others [member] |
Disclosure of contingent liabilities [line items] |
Total | 346,442
2 years ~3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | DAON INP Co., Ltd. | Main PF [member] | Joint guarantee [Member] |
Disclosure of contingent liabilities [line items] |
Total | 60,000
2 years ~3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Alpha City HG Ltd [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 60,000
2 years ~3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Island One [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 50,000
2 years ~3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Daegu MBC Site Mixeduse Development PFV [Member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 80,000
2 years ~3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 95,075
2 years ~3 years | Others [member] | POSCO DX Co., Ltd.(formerly, POSCO ICT) [member] | Other projects [member] | Jeonnong schoo keeper co. and others [member] | Main PF [member] | Supplemental funding agreement [member] |
Disclosure of contingent liabilities [line items] |
Total | 1,367
After 3 years |
Disclosure of contingent liabilities [line items] |
Total | 421,442
After 3 years | Others [member] |
Disclosure of contingent liabilities [line items] |
Total | 421,442
After 3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Civic Center PFV [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 45,000
After 3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Other projects [member] | Landmark Sewoon | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 50,000
After 3 years | Others [member] | POSCO Eco & Challenge Co., Ltd. (formerly, POSCO ENGINEERING & CONSTRUCTION CO.,LTD.) [member] | Maintenance projects [member] | Bangbae Shindonga Apartment Reconstruction and Maintenance Project Association, etc. [member] | Main PF [member] | Debt assumption [member] |
Disclosure of contingent liabilities [line items] |
Total | 291,118
After 3 years | Others [member] | POSCO DX Co., Ltd.(formerly, POSCO ICT) [member] | Other projects [member] | Jeonnong schoo keeper co. and others [member] | Main PF [member] | Supplemental funding agreement [member] |
Disclosure of contingent liabilities [line items] |
Total | ₩ 35,324

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