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General Information - Details of Consolidated Subsidiaries (Detail) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Steel manufacturing and sales |
Ownership (%) | [1] | 43.00% | 43.00%
Region | [1] | China |
Domestic [member] | POSCO [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel, rolled products and plates |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO Eco & Challenge Co., Ltd |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Engineering and construction |
Ownership (%) |  | 52.80% | 52.80%
Region |  | Pohang |
Domestic [member] | POSCO Eco & Challenge Co., Ltd | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 52.80% | 52.80%
Domestic [member] | POSCO STEELEON Co., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coated steel manufacturing |
Ownership (%) |  | 56.96% | 56.96%
Region |  | Pohang |
Domestic [member] | POSCO STEELEON Co., Ltd. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 56.96% | 56.96%
Domestic [member] | POSCO DX Co., Ltd.[member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Computer hardware and software distribution |
Ownership (%) |  | 65.47% | 65.47%
Region |  | Pohang |
Domestic [member] | POSCO DX Co., Ltd.[member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 65.47% | 65.47%
Domestic [member] | POSCO Research Institute [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Economic research and consulting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | POSCO Research Institute [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO WIDE Co Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Business facility maintenance |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | POSCO WIDE Co Ltd [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO A&C [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Architecture and consulting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | POSCO A&C [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO Venture Capital Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO Venture Capital Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | eNtoB Corporation [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Electronic commerce |
Ownership (%) |  | 69.32% | 69.32%
Region |  | Seoul |
Domestic [member] | eNtoB Corporation [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 69.32% | 69.32%
Domestic [member] | POSCO FUTURE M CO.,LTD. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Refractories, Anode/Cathode materials manufacturing and sales |
Ownership (%) |  | 58.18% | 59.74%
Region |  | Pohang |
Domestic [member] | POSCO FUTURE M CO.,LTD. | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 58.18% | 59.74%
Domestic [member] | POSCO FLOW Co Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Transporting and warehousing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Gwangyang |
Domestic [member] | POSCO FLOW Co Ltd [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO M-TECH [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Packing materials manufacturing and sales |
Ownership (%) | [1] | 48.85% | 48.85%
Region | [1] | Pohang |
Domestic [member] | POSCO M-TECH [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [1] | 48.85% | 48.85%
Domestic [member] | PNR [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel by product manufacturing and sales |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Pohang |
Domestic [member] | PNR [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Domestic [member] | POSCO WOMAN'S FUND [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Investment in venture companies |
Ownership (%) | [1] | 40.00% | 40.00%
Region | [1] | Seoul |
Domestic [member] | POSCO WOMAN'S FUND [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [1] | 40.00% | 40.00%
Domestic [member] | POSCO Group University [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Education service and real estate business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Incheon |
Domestic [member] | Growth Ladder POSCO K-Growth Global Fund [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Investment in venture companies |
Ownership (%) | [1] | 50.00% | 50.00%
Region | [1] | Pohang |
Domestic [member] | Growth Ladder POSCO K-Growth Global Fund [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [1] | 50.00% | 50.00%
Domestic [member] | POSCO IH |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Intellectual Property Services and consulting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | POSCO IH | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | TANCHEON E&E [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Refuse derived fuel and power generation |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | TANCHEON E&E [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO Humans [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Business assistance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO Humans [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | Mapo Hibroad Parking Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction |
Ownership (%) |  | 71.00% | 71.00%
Region |  | Seoul |
Domestic [member] | Mapo Hibroad Parking Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 71.00% | 71.00%
Domestic [member] | Busan E&E Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Refuse derived fuel and power generation |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Busan |
Domestic [member] | Busan E&E Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Domestic [member] | POSCO INTERNATIONAL Corporation [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading, power generation, energy & resource development and others |
Ownership (%) |  | 72.98% | 72.98%
Region |  | Seoul |
Domestic [member] | POSCO INTERNATIONAL Corporation [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 72.98% | 72.98%
Domestic [member] | Pohang Scrap Recycling Distribution Center Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel processing and sales |
Ownership (%) |  | 51.00% | 51.00%
Region |  | Pohang |
Domestic [member] | Pohang Scrap Recycling Distribution Center Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 51.00% | 51.00%
Domestic [member] | Songdo Development PMC (Project Management Company) LLC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Housing business agency |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Incheon |
Domestic [member] | Songdo Development PMC (Project Management Company) LLC. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | Korea Fuel Cell [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Fuel cell |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | Korea Fuel Cell [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO GEM 1st Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO GEM 1st Fund [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 98.82% | 98.81%
Domestic [member] | POSCO GEM 1st Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 1.18% | 1.19%
Domestic [member] | POSCO MOBILITY SOLUTION [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | STC, TMC, Plate manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Cheonan |
Domestic [member] | POSCO MOBILITY SOLUTION [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | Posco New Growth [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | Posco New Growth [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 99.89% | 99.89%
Domestic [member] | Posco New Growth [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.11% | 0.11%
Domestic [member] | IMP Fund I [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 98.05% | 98.05%
Region |  | Pohang |
Domestic [member] | IMP Fund I [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 98.05% | 98.05%
Domestic [member] | POSCO-Pilbara LITHIUM SOLUTION CO., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Lithium manufacturing and sales |
Ownership (%) |  | 82.00% | 82.00%
Region |  | Gwangyang |
Domestic [member] | POSCO-Pilbara LITHIUM SOLUTION CO., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 82.00% | 82.00%
Domestic [member] | POSCO-HY Clean Metal Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Non-ferrous metal smelting |
Ownership (%) |  | 100.00% | 75.00%
Region |  | Gwangyang |
Domestic [member] | POSCO-HY Clean Metal Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 75.00%
Domestic [member] | Consus Pf private Real Estate Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | REITs |
Ownership (%) |  | 0.00% | 66.67%
Domestic [member] | Consus Pf private Real Estate Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 66.67%
Domestic [member] | New Energy Hub [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Electricity and gas supply |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Domestic [member] | New Energy Hub [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Domestic [member] | Posco Busan Newdeal Fund [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Investment in venture companies |
Ownership (%) | [1] | 32.00% | 32.00%
Region | [1] | Pohang |
Domestic [member] | Posco Busan Newdeal Fund [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [1] | 32.00% | 32.00%
Domestic [member] | Shinan Green Energy Co., LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Electricity production |
Ownership (%) |  | 54.53% | 54.53%
Region |  | Shinahn |
Domestic [member] | Shinan Green Energy Co., LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 54.53% | 54.53%
Domestic [member] | eSteel4U [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Wholesales and retail |
Ownership (%) |  | 61.12% | 61.12%
Region |  | Seoul |
Domestic [member] | eSteel4U [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 61.12% | 61.12%
Domestic [member] | POSCO social investment fund [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Pohang |
Domestic [member] | POSCO social investment fund [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 20.00% | 20.00%
Domestic [member] | POSCO social investment fund [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 50.00% | 50.00%
Domestic [member] | Consus Pf Private Real Estate Fund No.2 [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate development |
Ownership (%) |  | 0.00% | 66.67%
Domestic [member] | Consus Pf Private Real Estate Fund No.2 [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 66.67%
Domestic [member] | POSCO GS Eco Materials Co., Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Rechargeable battery |
Ownership (%) |  | 70.25% | 51.00%
Region |  | Seoul |
Domestic [member] | POSCO GS Eco Materials Co., Ltd [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.25% | 51.00%
Domestic [member] | POSCO Lithium Solution CO., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Lithium manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Gwangyang |
Domestic [member] | POSCO Lithium Solution CO., Ltd. [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | QSONE Co.,Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate rental |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | QSONE Co.,Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO PS Tech [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO PS Tech [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO PR Tech [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO PR Tech [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO PH Solution [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO PH Solution [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO GYS Tech [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Gwangyang |
Domestic [member] | POSCO GYS Tech [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO GYR Tech [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Gwangyang |
Domestic [member] | POSCO GYR Tech [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO GY Solution [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Maintenance service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Gwangyang |
Domestic [member] | POSCO GY Solution [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | PCC Facilities Component Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment Association |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Pohang |
Domestic [member] | PCC Facilities Component Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Domestic [member] | POSCO HOLDINGS CVC 2nd Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Pohang |
Domestic [member] | POSCO HOLDINGS CVC 2nd Fund [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 98.77% | 98.76%
Domestic [member] | POSCO HOLDINGS CVC 2nd Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 1.23% | 1.24%
Domestic [member] | International Energy Expansion for Technology Innovation Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies business |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Pohang |
Domestic [member] | International Energy Expansion for Technology Innovation Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Domestic [member] | POSCO CNGR Nickel Solution [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | High-Purity nickel manufacturing and sales |
Ownership (%) |  | 0.00% | 60.00%
Region |  | — |
Domestic [member] | POSCO CNGR Nickel Solution [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 60.00%
Domestic [member] | POSCO CVC Scale-Up Fund |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in venture companies |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Pohang |
Domestic [member] | POSCO CVC Scale-Up Fund | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Domestic [member] | SK SOLAR POWER GENERATION COPORATION [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Power generation |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Domestic [member] | SK SOLAR POWER GENERATION COPORATION [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Domestic [member] | POSCO ZT AIR SOLUTION [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | High-Purity rare gas manufacturing and sales |
Ownership (%) |  | 75.10% | 75.10%
Region |  | Gwangyang |
Domestic [member] | POSCO ZT AIR SOLUTION [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 75.10% | 75.10%
Domestic [member] | RNR logistics [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics and warehousing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Seoul |
Domestic [member] | RNR logistics [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | Mastern No.123 Yeoju Samgyo PFV CO., Ltd |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics and warehousing |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Domestic [member] | Mastern No.123 Yeoju Samgyo PFV CO., Ltd | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Domestic [member] | Posco Silicon Solution Co., Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Other engineering R&D industries |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Sejong |
Domestic [member] | Posco Silicon Solution Co., Ltd [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Domestic [member] | POSCO Group AC Fund I [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 100.00% |
Region |  | Pohang |
Domestic [member] | POSCO Group AC Fund I [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 98.38% |
Domestic [member] | POSCO Group AC Fund I [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 1.62% |
Domestic [member] | POSCO Safety Solution [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Safety consulting |
Ownership (%) |  | 100.00% |
Region |  | Seongnam |
Domestic [member] | POSCO Safety Solution [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | POSCO Safety Solution [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% |
Domestic [member] | POSCO DEEPTECH IP FUND [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 60.00% |
Region |  | Pohang |
Domestic [member] | POSCO DEEPTECH IP FUND [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% |
Domestic [member] | FUTURE GRAPH CO LTD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Spherical graphite manufacturing |
Ownership (%) |  | 100.00% |
Region |  | Gunsan |
Domestic [member] | FUTURE GRAPH CO LTD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | CHEMGAS KOREA CO., LTD. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Specialty gass refining and sales |
Ownership (%) |  | 100.00% |
Region |  | Eumseong |
Domestic [member] | CHEMGAS KOREA CO., LTD. | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | POSCOEVER NEW MEDICAL Investment Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 60.00% |
Region |  | Seoul |
Domestic [member] | POSCOEVER NEW MEDICAL Investment Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% |
Domestic [member] | POSCO Stainless Precision And Processing [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | STS |
Ownership (%) |  | 100.00% |
Region |  | Ansan |
Domestic [member] | POSCO Stainless Precision And Processing [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | POSCO INTERNATIONAL CVC 1st Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 100.00% |
Region |  | Pohang |
Domestic [member] | POSCO INTERNATIONAL CVC 1st Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | POSCO CVC 1st Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 100.00% |
Region |  | Pohang |
Domestic [member] | POSCO CVC 1st Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | New Zero 2nd Co Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | SPC |
Ownership (%) |  | 100.00% |
Region |  | Seoul |
Domestic [member] | New Zero 2nd Co Ltd [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | POSCO DX CVC 1st Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 100.00% |
Region |  | Pohang |
Domestic [member] | POSCO DX CVC 1st Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Domestic [member] | Startup Korea Posco group Openinnovation Fund [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Investment in new technologies |
Ownership (%) |  | 70.00% |
Region |  | Pohang |
Domestic [member] | Startup Korea Posco group Openinnovation Fund [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% |
Domestic [member] | FLOW K CO Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics and warehousing |
Ownership (%) |  | 70.00% |
Region |  | Gwangyang |
Domestic [member] | FLOW K CO Ltd [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% |
Foreign [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 100.00%
Foreign [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 100.00%
Foreign [member] | POSCO America Corporation [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Research&Consulting |
Ownership (%) |  | 99.99% | 99.99%
Region |  | USA |
Foreign [member] | POSCO America Corporation [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 99.45% | 99.45%
Foreign [member] | POSCO America Corporation [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.54% | 0.54%
Foreign [member] | POSCO AUSTRALIA PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Raw material sales & mine development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POSCO AUSTRALIA PTY LTD [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Canada Ltd [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coal sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Canada |
Foreign [member] | POSCO Canada Ltd [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Asia Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Finance |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO Asia Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-CTPC Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO-CTPC Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO E&C Vietnam Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel structure manufacturing and sales |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Foreign [member] | POSCO E&C Vietnam Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Foreign [member] | POSCO (Zhangjiagang) Stainless Steel Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Stainless steel manufacturing and sales |
Ownership (%) |  | 82.48% | 82.48%
Region |  | China |
Foreign [member] | POSCO (Zhangjiagang) Stainless Steel Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 58.60% | 58.60%
Foreign [member] | POSCO (Zhangjiagang) Stainless Steel Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 23.88% | 23.88%
Foreign [member] | POSCO (Thailand) Company Limited [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Thailand |
Foreign [member] | POSCO (Thailand) Company Limited [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-MKPC SDN BHD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Malaysia |
Foreign [member] | POSCO-MKPC SDN BHD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Foreign [member] | Qingdao Pohang Stainless Steel Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Stainless steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | Qingdao Pohang Stainless Steel Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Foreign [member] | Qingdao Pohang Stainless Steel Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 30.00% | 30.00%
Foreign [member] | POSCO (Suzhou) Automotive Processing Center Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO (Suzhou) Automotive Processing Center Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 90.00% | 90.00%
Foreign [member] | POSCO (Suzhou) Automotive Processing Center Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 10.00% | 10.00%
Foreign [member] | POSCO-China Qingdao Processing Center Co. Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO-China Qingdao Processing Center Co. Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POS-ORE PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Iron ore development and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POS-ORE PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-China Holding Corp. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Holding company |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO-China Holding Corp. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO JAPAN Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel Marketing, demand development and technology research |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Japan |
Foreign [member] | POSCO JAPAN Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POS-GC PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coal sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POS-GC PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-India Private Limited [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO-India Private Limited [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-India Pune Processing Center. Pvt. Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 65.00%
Region |  | India |
Foreign [member] | POSCO-India Pune Processing Center. Pvt. Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 0.00%
Foreign [member] | POSCO-India Pune Processing Center. Pvt. Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 65.00%
Foreign [member] | POSCO Japan PC CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 86.12% | 86.12%
Region |  | Japan |
Foreign [member] | POSCO Japan PC CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 86.12% | 86.12%
Foreign [member] | POSCO-CFPC Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO-CFPC Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 44.66% | 44.66%
Foreign [member] | POSCO-CFPC Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 55.34% | 55.34%
Foreign [member] | POSCO E&C CHINA Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Civil engineering and construction |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO E&C CHINA Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO MPPC S.A. de C.V. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 96.31%
Region |  | Mexico |
Foreign [member] | POSCO MPPC S.A. de C.V. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 21.02% | 21.02%
Foreign [member] | POSCO MPPC S.A. de C.V. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 78.98% | 75.29%
Foreign [member] | Zhangjigang Pohang Port Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Loading and unloading service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | Zhangjigang Pohang Port Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-VIETNAM Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Vietnam |
Foreign [member] | POSCO-VIETNAM Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO MEXICO S.A. DE C.V. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Automotive steel sheet manufacturing and sales |
Ownership (%) |  | 98.16% | 98.16%
Region |  | Mexico |
Foreign [member] | POSCO MEXICO S.A. DE C.V. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 98.16% | 98.16%
Foreign [member] | POSCO-Poland Wroclaw Processing Center Sp. z o. o. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Poland |
Foreign [member] | POSCO-Poland Wroclaw Processing Center Sp. z o. o. | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Foreign [member] | POS-NP PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coal sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POS-NP PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | DAEWOO INTERNATIONAL SHANGHAI WAIGAOQIAO CO., LTD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Intermediary trade & bonded warehouse operation |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | DAEWOO INTERNATIONAL SHANGHAI WAIGAOQIAO CO., LTD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT. Bio Inti Agrindo [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Forest resources development |
Ownership (%) |  | 85.00% | 85.00%
Region |  | Indonesia |
Foreign [member] | PT. Bio Inti Agrindo [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 85.00% | 85.00%
Foreign [member] | POSCO ENGINEERING AND CONSTRUCTION AUSTRALIA (POSCO E&C AUSTRALIA) PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction and engineering service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POSCO ENGINEERING AND CONSTRUCTION AUSTRALIA (POSCO E&C AUSTRALIA) PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-TISCO (JILIN) PROCESSING CENTER Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 60.00% | 60.00%
Region |  | China |
Foreign [member] | POSCO-TISCO (JILIN) PROCESSING CENTER Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 50.00% | 50.00%
Foreign [member] | POSCO-TISCO (JILIN) PROCESSING CENTER Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 10.00% | 10.00%
Foreign [member] | POSCO Thainox Public Company Limited [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | STS cold-rolled steel manufacturing and sales |
Ownership (%) |  | 74.56% | 74.56%
Region |  | Thailand |
Foreign [member] | POSCO Thainox Public Company Limited [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 74.56% | 74.56%
Foreign [member] | HUNCHUN POSCO HMM INTERNATIONAL LOGISTICS CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics |
Ownership (%) |  | 81.55% | 81.55%
Region |  | China |
Foreign [member] | HUNCHUN POSCO HMM INTERNATIONAL LOGISTICS CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 81.55% | 81.55%
Foreign [member] | POSCO INTERNATIONAL VIETNAM CO., LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Vietnam |
Foreign [member] | POSCO INTERNATIONAL VIETNAM CO., LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO (Chongqing) Automotive Processing Center Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO (Chongqing) Automotive Processing Center Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | SUZHOU POSCO-CORE TECHNOLOGY CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Component manufacturing and sales |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Foreign [member] | SUZHOU POSCO-CORE TECHNOLOGY CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Foreign [member] | PT.KRAKATAU POSCO FUTUREM [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Quicklime manufacturing and sales |
Ownership (%) |  | 80.00% | 80.00%
Region |  | Indonesia |
Foreign [member] | PT.KRAKATAU POSCO FUTUREM [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 80.00% | 80.00%
Foreign [member] | POSCO AFRICA (PROPRIETARY) LIMITED [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Mine development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | South Africa |
Foreign [member] | POSCO AFRICA (PROPRIETARY) LIMITED [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Center Beijing [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate development, rental and management |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO Center Beijing [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-Malaysia SDN. BHD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 95.42% | 95.42%
Region |  | Malaysia |
Foreign [member] | POSCO-Malaysia SDN. BHD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 95.42% | 95.42%
Foreign [member] | PT KRAKATAU BLUE WATER [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Wastewater treatment facilities operation and maintenance |
Ownership (%) |  | 67.00% | 67.00%
Region |  | Indonesia |
Foreign [member] | PT KRAKATAU BLUE WATER [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 67.00% | 67.00%
Foreign [member] | POSCO INTERNATIONAL MYANMAR CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Myanmar |
Foreign [member] | POSCO INTERNATIONAL MYANMAR CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO-Italy Processing Center [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Stainless steel sheet manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Italy |
Foreign [member] | POSCO-Italy Processing Center [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 88.89% | 88.89%
Foreign [member] | POSCO-Italy Processing Center [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 11.11% | 11.11%
Foreign [member] | Myanmar POSCO C&C Company, Limited. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Myanmar |
Foreign [member] | Myanmar POSCO C&C Company, Limited. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Foreign [member] | POSCO INTERNATIONAL GLOBAL DEVELOPMENT PTE. LTD. (Formerly, Daewoo Global Development Pte., Ltd.) [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate development |
Ownership (%) |  | 75.00% | 75.00%
Region |  | Singapore |
Foreign [member] | POSCO INTERNATIONAL GLOBAL DEVELOPMENT PTE. LTD. (Formerly, Daewoo Global Development Pte., Ltd.) [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 75.00% | 75.00%
Foreign [member] | POSCO DX VIETNAM [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | IT service and electric control engineering |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Vietnam |
Foreign [member] | POSCO DX VIETNAM [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Engineering and Construction India Private Limited [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Civil engineering and construction |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO Engineering and Construction India Private Limited [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POS-Minerals Corporation [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Mine development management and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | USA |
Foreign [member] | POS-Minerals Corporation [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO(Wuhu) Automotive Processing Center Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO(Wuhu) Automotive Processing Center Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 68.57% | 68.57%
Foreign [member] | POSCO(Wuhu) Automotive Processing Center Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 31.43% | 31.43%
Foreign [member] | POSCO COATED STEEL (THAILAND) CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Vehicle steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Thailand |
Foreign [member] | POSCO COATED STEEL (THAILAND) CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL AMARA Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate development |
Ownership (%) |  | 85.00% | 85.00%
Region |  | Myanmar |
Foreign [member] | POSCO INTERNATIONAL AMARA Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 85.00% | 85.00%
Foreign [member] | POSCO-Mexico Villagran Wire-rod Processing Center [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 66.75% | 66.75%
Region |  | Mexico |
Foreign [member] | POSCO-Mexico Villagran Wire-rod Processing Center [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 66.75% | 66.75%
Foreign [member] | POSCO (Suzhou) Steel Processing Center CO., LTD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Foreign [member] | POSCO (Suzhou) Steel Processing Center CO., LTD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Foreign [member] | POSCO E&C SMART S DE RL DE CV [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Civil engineering and construction |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Mexico |
Foreign [member] | POSCO E&C SMART S DE RL DE CV [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Philippine Manila Processing Center, Inc. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Philippines |
Foreign [member] | POSCO Philippine Manila Processing Center, Inc. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO E&C HOLDINGS CO., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Holding company |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Thailand |
Foreign [member] | POSCO E&C HOLDINGS CO., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT.KRAKATAU POSCO SOCIAL ENTERPRISE SERVICES INDONESIA [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Social enterprise |
Ownership (%) |  | 99.91% | 99.91%
Region |  | Indonesia |
Foreign [member] | PT.KRAKATAU POSCO SOCIAL ENTERPRISE SERVICES INDONESIA [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 99.91% | 99.91%
Foreign [member] | Ventanas Philippines Construction Inc [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Philippines |
Foreign [member] | Ventanas Philippines Construction Inc [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | SANPU TRADING Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Raw material trading |
Ownership (%) |  | 0.00% | 70.04%
Region |  | — |
Foreign [member] | SANPU TRADING Co., Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 70.04%
Foreign [member] | Zhangjiagang BLZ Pohang International Trading [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel Intermediate trade |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | Zhangjiagang BLZ Pohang International Trading [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO RU Limited Liability Company [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trade and business development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Russia |
Foreign [member] | POSCO RU Limited Liability Company [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | GOLDEN LACE POSCO INTERNATIONAL CO., LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Rice processing |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Myanmar |
Foreign [member] | GOLDEN LACE POSCO INTERNATIONAL CO., LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Foreign [member] | POSCO DX China CO., LTD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | IT service and DVR business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO DX China CO., LTD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Pos-Sea Pte Ltd [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel Intermediate trade |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Singapore |
Foreign [member] | Pos-Sea Pte Ltd [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Europe Steel Distribution Center [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics & Steel sales |
Ownership (%) |  | 90.00% | 90.00%
Region |  | Slovenia |
Foreign [member] | POSCO Europe Steel Distribution Center [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 90.00% | 90.00%
Foreign [member] | POSCO ENGINEERING (THAILAND) CO., LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction and engineering service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Thailand |
Foreign [member] | POSCO ENGINEERING (THAILAND) CO., LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO VST Co., Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Stainless steel sheet manufacturing and sales |
Ownership (%) |  | 95.65% | 95.65%
Region |  | Vietnam |
Foreign [member] | POSCO VST Co., Ltd. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 95.65% | 95.65%
Foreign [member] | POSCO INTERNATIONAL UKRAINE, LLC. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Grain sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Ukraine |
Foreign [member] | POSCO INTERNATIONAL UKRAINE, LLC. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Zhangjiagang Pohang Refractories Co., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Refractory materials sales & furnace maintenance |
Ownership (%) |  | 51.00% | 51.00%
Region |  | China |
Foreign [member] | Zhangjiagang Pohang Refractories Co., Ltd. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 51.00% | 51.00%
Foreign [member] | POSCO Maharashtra Steel Private Limited [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO Maharashtra Steel Private Limited [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 0.00%
Foreign [member] | POSCO Maharashtra Steel Private Limited [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INDIA PROCESSING CENTER PRIVATE LIMITED [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 95.32% | 95.32%
Region |  | India |
Foreign [member] | POSCO INDIA PROCESSING CENTER PRIVATE LIMITED [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 0.00%
Foreign [member] | POSCO INDIA PROCESSING CENTER PRIVATE LIMITED [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 95.32% | 95.32%
Foreign [member] | POSCO TNPC Otomotiv Celik San. Ve Tic. A.S [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Turkiye |
Foreign [member] | POSCO TNPC Otomotiv Celik San. Ve Tic. A.S [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Vietnam Processing Center Joint Stock Company [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Vietnam |
Foreign [member] | POSCO Vietnam Processing Center Joint Stock Company [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 84.04% | 84.04%
Foreign [member] | POSCO Vietnam Processing Center Joint Stock Company [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 15.96% | 15.96%
Foreign [member] | POSCO (Liaoning) Automotive Processing Center Co., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO (Liaoning) Automotive Processing Center Co., Ltd. [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 90.00% | 90.00%
Foreign [member] | POSCO (Liaoning) Automotive Processing Center Co., Ltd. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 10.00% | 10.00%
Foreign [member] | POSCO-Indonesia Jakarta Processing Center [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 92.20% | 92.20%
Region |  | Indonesia |
Foreign [member] | POSCO-Indonesia Jakarta Processing Center [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 92.20% | 92.20%
Foreign [member] | POSCO TMC INDIA PRIVATE LIMITED [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO TMC INDIA PRIVATE LIMITED [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT.MOTTA RESOURCES INDONESIA [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Mine development |
Ownership (%) |  | 65.00% | 65.00%
Region |  | Indonesia |
Foreign [member] | PT.MOTTA RESOURCES INDONESIA [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 65.00% | 65.00%
Foreign [member] | POSCO(Yantai) Automotive Processing Center Co., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO(Yantai) Automotive Processing Center Co., Ltd. [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 90.00% | 90.00%
Foreign [member] | POSCO(Yantai) Automotive Processing Center Co., Ltd. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 10.00% | 10.00%
Foreign [member] | POSCO AMERICA ALABAMA PROCESSING CENTER CO., LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 97.80% | 97.80%
Region |  | USA |
Foreign [member] | POSCO AMERICA ALABAMA PROCESSING CENTER CO., LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 97.80% | 97.80%
Foreign [member] | POSCO India Steel Distribution Center Private Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel logistics |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO India Steel Distribution Center Private Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO YAMATO VINA STEEL JOINT STOCK COMPANY [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 51.00% | 51.00%
Region |  | Vietnam |
Foreign [member] | POSCO YAMATO VINA STEEL JOINT STOCK COMPANY [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 51.00% | 51.00%
Foreign [member] | PT.POSCO DX INDONESIA [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | IT service and electric control engineering |
Ownership (%) |  | 66.99% | 66.99%
Region |  | Indonesia |
Foreign [member] | PT.POSCO DX INDONESIA [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 66.99% | 66.99%
Foreign [member] | POSCO NCR Coal Ltd. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coal sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Canada |
Foreign [member] | POSCO NCR Coal Ltd. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO WA PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Iron ore sales & mine development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POSCO WA PTY LTD [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO AUSTRALIA GP PTY LIMITED [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Resource development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POSCO AUSTRALIA GP PTY LIMITED [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT. KRAKATAU POSCO ENERGY [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Electricity production construction and operation |
Ownership (%) |  | 55.00% | 55.00%
Region |  | Indonesia |
Foreign [member] | PT. KRAKATAU POSCO ENERGY [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 55.00% | 55.00%
Foreign [member] | POSCO INTERNATIONAL AMERICA CORP. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | USA |
Foreign [member] | POSCO INTERNATIONAL AMERICA CORP. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL Deutschland GMBH [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Germany |
Foreign [member] | POSCO INTERNATIONAL Deutschland GMBH [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL JAPAN CORP [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Japan |
Foreign [member] | POSCO INTERNATIONAL JAPAN CORP [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL SINGAPORE PTE. LTD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Singapore |
Foreign [member] | POSCO INTERNATIONAL SINGAPORE PTE. LTD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL ITALIA S.R.L. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Italy |
Foreign [member] | POSCO INTERNATIONAL ITALIA S.R.L. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL (CHINA) CO., LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO INTERNATIONAL (CHINA) CO., LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL TEXTILE LLC. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Textile manufacturing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Uzbekistan |
Foreign [member] | POSCO INTERNATIONAL TEXTILE LLC. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL AUSTRALIA HOLDINGS PTY. LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Resource development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POSCO INTERNATIONAL AUSTRALIA HOLDINGS PTY. LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO MAURITIUS LIMITED [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Coal development and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Mauritius |
Foreign [member] | POSCO MAURITIUS LIMITED [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT. KRAKATAU POSCO [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [1] | Steel manufacturing and sales |
Ownership (%) | [1] | 50.00% | 50.00%
Region | [1] | Indonesia |
Foreign [member] | PT. KRAKATAU POSCO [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [1] | 50.00% | 50.00%
Foreign [member] | POSCO INTERNATIONAL MEXICO, S.A de C.V.. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Mexico |
Foreign [member] | POSCO INTERNATIONAL MEXICO, S.A de C.V.. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL MALAYSIA SDN BHD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Malaysia |
Foreign [member] | POSCO INTERNATIONAL MALAYSIA SDN BHD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT.POSCO INDONESIA INTI [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Consulting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Indonesia |
Foreign [member] | PT.POSCO INDONESIA INTI [Member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL SHANGHAI CO., LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO INTERNATIONAL SHANGHAI CO., LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL INDIA PVT., LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 100.00% | 100.00%
Region |  | India |
Foreign [member] | POSCO INTERNATIONAL INDIA PVT., LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | HUME COAL PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Raw material manufacturing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | HUME COAL PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT. POSCO E&C INDONESIA [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Civil engineering and construction |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Indonesia |
Foreign [member] | PT. POSCO E&C INDONESIA [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Brazil Sao Paulo Steel Processing Center [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 76.00% | 76.00%
Region |  | Brazil |
Foreign [member] | Brazil Sao Paulo Steel Processing Center [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 76.00% | 76.00%
Foreign [member] | POSCO ASSAN TST STEEL INDUSTRY [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Turkiye |
Foreign [member] | POSCO ASSAN TST STEEL INDUSTRY [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  |  | 0.00%
Foreign [member] | POSCO ASSAN TST STEEL INDUSTRY [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Foreign [member] | POSCO ENGINEERING & CONSTRUCTION DO BRAZIL LTDA. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction |
Ownership (%) |  | 0.00% | 100.00%
Region |  | — |
Foreign [member] | POSCO ENGINEERING & CONSTRUCTION DO BRAZIL LTDA. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 0.00% | 100.00%
Foreign [member] | HONG KONG POSCO E&C (CHINA) INVESTMENT Co., Ltd [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Real estate development and investment |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Hongkong |
Foreign [member] | HONG KONG POSCO E&C (CHINA) INVESTMENT Co., Ltd [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | JB CLARK HILLS [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Apartment construction |
Ownership (%) |  | 70.00% | 70.00%
Region |  | Philippines |
Foreign [member] | JB CLARK HILLS [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 70.00% | 70.00%
Foreign [member] | ZHEJIANG POSCO-HUAYOU ESM CO., LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Anode material manufacturing |
Ownership (%) |  | 60.00% | 60.00%
Region |  | China |
Foreign [member] | ZHEJIANG POSCO-HUAYOU ESM CO., LTD [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 14.67% | 14.67%
Foreign [member] | ZHEJIANG POSCO-HUAYOU ESM CO., LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 45.33% | 45.33%
Foreign [member] | POS-LT PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Lithium mining investment |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | POS-LT PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO Argentina S.A.U. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Mineral exploration/manufacturing/sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Argentina |
Foreign [member] | POSCO Argentina S.A.U. [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | GRAIN TERMINAL HOLDING PTE. LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trading business |
Ownership (%) |  | 75.00% | 75.00%
Region |  | Singapore |
Foreign [member] | GRAIN TERMINAL HOLDING PTE. LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 75.00% | 75.00%
Foreign [member] | Mykolaiv Milling Works PJSC. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Grain trading |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Ukraine |
Foreign [member] | Mykolaiv Milling Works PJSC. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Yuzhnaya Stevedoring Company Limited LLC. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Cargo handling |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Ukraine |
Foreign [member] | Yuzhnaya Stevedoring Company Limited LLC. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Posco International (Thailand) Co., Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trade |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Thailand |
Foreign [member] | Posco International (Thailand) Co., Ltd. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PEC POWERCON SDN. BHD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Construction and engineering service |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Malaysia |
Foreign [member] | PEC POWERCON SDN. BHD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Poland Legnica Sourcing Center Sp. z o.o [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Non-ferrous metal Smetling |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Poland |
Foreign [member] | Poland Legnica Sourcing Center Sp. z o.o [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT POSCO INTERNATIONAL INDONESIA [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trade |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Indonesia |
Foreign [member] | PT POSCO INTERNATIONAL INDONESIA [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL E&P MALAYSIA SDN. BHD. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Extraction of Crude petroleum and Natural gas |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Malaysia |
Foreign [member] | POSCO INTERNATIONAL E&P MALAYSIA SDN. BHD. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | AGPA PTE. LTD. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Holding company |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Singapore |
Foreign [member] | AGPA PTE. LTD. [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Senex Holdings PTY LTD [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [2] | Resource Development |
Ownership (%) | [2] | 50.10% | 50.10%
Region | [2] | Australia |
Foreign [member] | Senex Holdings PTY LTD [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [2] | 50.10% | 50.10%
Foreign [member] | ULTIUM CAM GP INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Holding company |
Ownership (%) |  | 85.00% | 85.00%
Region |  | Canada |
Foreign [member] | ULTIUM CAM GP INC. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 85.00% | 85.00%
Foreign [member] | Posco International Mexico e-Mobility S.A DE C.V. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Electric Vehicle Parts Manufacturing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Mexico |
Foreign [member] | Posco International Mexico e-Mobility S.A DE C.V. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Posco Future Materials Canada Inc [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Holding company |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Canada |
Foreign [member] | Posco Future Materials Canada Inc [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | ULTIUM CAM LIMITED PARTNERSHIP [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Anode material manufacturing |
Ownership (%) |  | 85.00% | 85.00%
Region |  | Canada |
Foreign [member] | ULTIUM CAM LIMITED PARTNERSHIP [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 85.00% | 85.00%
Foreign [member] | POSCO(Wuhan) Automotive Processing Center Co.,Ltd [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Steel manufacturing and sales |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO(Wuhan) Automotive Processing Center Co.,Ltd [member] | POSCO HOLDINGS INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 68.57% | 68.57%
Foreign [member] | POSCO(Wuhan) Automotive Processing Center Co.,Ltd [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 31.43% | 31.43%
Foreign [member] | POSCO BRAZIL LTDA [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Office Administration, Management Consulting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Brazil |
Foreign [member] | POSCO BRAZIL LTDA [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | Port Hedland Green Steel Pty Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Iron and steel manufacturing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Australia |
Foreign [member] | Port Hedland Green Steel Pty Ltd [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT AGPA REFINERY COMPLEX [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Animal/vegetable oil manufacturing |
Ownership (%) |  | 60.00% | 60.00%
Region |  | Indonesia |
Foreign [member] | PT AGPA REFINERY COMPLEX [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 60.00% | 60.00%
Foreign [member] | POSCO MOBILITY SOLUTION POLAND Sp. z o.o., [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Manufacturing, automobile motor parts |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Poland |
Foreign [member] | POSCO MOBILITY SOLUTION POLAND Sp. z o.o., [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | PT POSCO INTERNATIONAL ENP INDONESIA [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Crude oil and natural gas |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Indonesia |
Foreign [member] | PT POSCO INTERNATIONAL ENP INDONESIA [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO INTERNATIONAL E&P USA Inc. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Carbon capture and storage, resource development |
Ownership (%) |  | 100.00% | 100.00%
Region |  | USA |
Foreign [member] | POSCO INTERNATIONAL E&P USA Inc. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO FLOW CANADA INC. [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Transporting and warehousing |
Ownership (%) |  | 100.00% | 100.00%
Region |  | Canada |
Foreign [member] | POSCO FLOW CANADA INC. [member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO FLOW (Shanghai) Co.,Ltd [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Transporting |
Ownership (%) |  | 100.00% | 100.00%
Region |  | China |
Foreign [member] | POSCO FLOW (Shanghai) Co.,Ltd [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% | 100.00%
Foreign [member] | POSCO (BEIJING) Trading Co., Ltd. |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Trade |
Ownership (%) |  | 100.00% |
Region |  | China |
Foreign [member] | POSCO (BEIJING) Trading Co., Ltd. | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Foreign [member] | PT Prime Agri Resources [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations | [3] | Food resources development |
Ownership (%) | [3] | 65.72% |
Region | [3] | Indonesia |
Foreign [member] | PT Prime Agri Resources [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) | [3] | 65.72% |
Foreign [member] | POSCO FLOW VIETNAM CO LTD [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Logistics |
Ownership (%) |  | 100.00% |
Region |  | Vietnam |
Foreign [member] | POSCO FLOW VIETNAM CO LTD [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
Foreign [member] | POSCO INTERNATIONAL ALASKA ENERGY LLC [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Principal operations |  | Energy |
Ownership (%) |  | 100.00% |
Region |  | USA |
Foreign [member] | POSCO INTERNATIONAL ALASKA ENERGY LLC [Member] | Total for all subsidiaries [member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Ownership (%) |  | 100.00% |
[1] | As of December 31, 2025, the entities are classified as consolidated subsidiaries since the Company has control over the investees although the Company’s percentage of ownership is 50% or less, considering the structure of the entities’ Board of Directors and others.
[2] | Senex Holdings PTY LTD includes 21 subsidiaries including Senex Energy Limited.
[3] | PT. Prime Agri Resources includes 25 subsidiaries including PT. Prime Agri Resources.

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