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Consolidated Statements of Cash Flows - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities |  |  |
Profit(loss) for the year | ₩ 3,621,968 | ₩ (4,716,144) | ₩ (24,429,108)
Adjustments to reconcile profit (loss) for the year to net cash provided by (used in) operating activities: |  |  |
Income tax expense (benefit) | 1,634,561 | (2,837,833) | (9,414,511)
Depreciation | 13,833,788 | 12,869,089 | 12,305,252
Amortization | 163,567 | 163,174 | 156,160
Employee benefit expense | 427,980 | 358,730 | 485,700
Bad debt expense | 60,309 | 101,550 | 29,997
Interest expense | 4,665,095 | 4,451,659 | 2,818,546
Loss on disposal of financial assets | 434 | 1 | 1,841
Loss on disposal of property, plant and equipment | 112,018 | 98,120 | 100,066
Loss on abandonment of property, plant and equipment | 195,697 | 196,697 | 160,909
Loss (gain) on impairment of property, plant and equipment | 11,240 | 17,031 | (97,425)
Loss on impairment of intangible assets | 902 | 2,865 | 164
Loss on disposal of intangible assets | 111 | 71 | 116
Increase in provisions | 1,762,526 | 1,611,082 | 2,146,979
Loss on foreign currency translation, net | 2,366,830 | 363,659 | 523,285
Gain on valuation of financial assets at fair value through profit or loss | (83,408) | (152,322) | (7,099)
Loss on valuation of financial assets at fair value through profit or loss | 14,247 | 24,015 | 44,329
Valuation and transaction gain on derivative instruments, net | (2,406,368) | (323,858) | (448,903)
Gain on valuation of investments in associates and joint ventures, net | (755,452) | (595,056) | (1,338,293)
Gain on disposal of financial assets | (45,493) | (13,162) | (11,199)
Gain on disposal of property, plant and equipment | (85,990) | (32,196) | (148,667)
Gain on disposal of intangible assets | (41) | (136) | (41)
Gain on disposal of investments in associates and joint ventures | (186,066) | (18,204) | (11,091)
Loss on disposal of investments in associates and joint ventures | 650 | 0 | 1,675
Loss on impairment of investments in associates and joint ventures | 69,173 | 19 | 5,174
Reversal of impairment loss on investments in associates and joint ventures | (10,527) | (347) | 0
Gain on disposal of subsidiaries | (98) | (2) | 0
Loss on disposal of investments in subsidiaries | 0 | 564 | 32,144
Interest income | (467,525) | (429,620) | (340,753)
Dividend income | (70,601) | (25,941) | (28,875)
Others, net | (76,125) | 6,910 | 215,943
Adjustments to reconcile profit (loss) for the year to net cash provided by operating activities | 21,131,434 | 15,836,559 | 7,181,423
Changes in working capital: |  |  |
Trade receivables | 2,702 | (1,484,134) | (1,909,649)
Non-trade receivables | (191,526) | 625,993 | 80,444
Accrued income | (189,995) | (258,993) | (34,706)
Other receivables | 101,042 | 56,460 | 80,236
Other current assets | (656,588) | 251,842 | (651,926)
Inventories | (1,412,713) | 147,798 | (3,000,669)
Other non-current assets | 108,625 | (101,576) | 58,790
Trade payables | 109,214 | (3,154,822) | 2,782,474
Non-trade payables | (97,540) | (960,450) | 61,737
Accrued expenses | (508,199) | (228,464) | (191,681)
Other current liabilities | (2,261,294) | 901,692 | 446,064
Other non-current liabilities | 2,892,947 | 437,809 | 422,916
Investments in associates and joint ventures (dividends received) | 364,287 | 592,812 | 473,700
Provisions | (1,588,396) | (1,497,699) | (1,564,243)
Payments of employee benefit obligations | (208,248) | (281,383) | (218,319)
Plan assets | (254,763) | (188,566) | (347,778)
Changes in working capital | (3,790,445) | (5,141,681) | (3,512,610)
Cash generated from operating activities | 20,962,957 | 5,978,734 | (20,760,295)
Dividends received (financial assets at fair value through other comprehensive income) | 12,243 | 25,941 | 28,875
Interest paid | (4,697,442) | (4,245,838) | (2,517,694)
Interest received | 390,671 | 329,740 | 220,471
Income taxes paid | (792,313) | (566,415) | (448,857)
Net cash provided by (used in) operating activities | 15,876,116 | 1,522,162 | (23,477,500)
Cash flows from investing activities |  |  |
Proceeds from disposals of investments in associates and joint ventures | 236,624 | 5,806 | 56,171
Acquisition of investments in associates and joint ventures | (451,813) | (497,634) | (360,962)
Proceeds from disposals of property, plant and equipment | 402,603 | 309,627 | 629,924
Acquisition of property, plant and equipment | (14,216,037) | (13,908,373) | (12,346,878)
Proceeds from disposals of intangible assets | 428 | 153 | 279
Acquisition of intangible assets | (91,851) | (74,832) | (80,508)
Proceeds from disposals of investment properties | 0 | 0 | 515
Proceeds from disposals of financial assets | 2,615,341 | 4,389,228 | 14,182,348
Acquisition of financial assets | (2,536,994) | (3,141,906) | (16,496,258)
Increase in loans | (172,849) | (212,994) | (401,377)
Collection of loans | 226,935 | 124,386 | 102,061
Increase in deposits | (154,503) | (138,205) | (237,266)
Decrease in deposits | 152,803 | 130,221 | 141,000
Proceeds from disposals of assets held-for-sale | 28,727 | 28,727 | 24,205
Receipt of government grants | 59,503 | 57,207 | 50,755
Net cash outflow from changes in consolidation scope | (2,740) | (25,849) | (31,350)
Other cash outflow from investing activities, net | (189,284) | (119,319) | (186,412)
Net cash used in investing activities | (14,093,107) | (13,073,757) | (14,953,753)
Cash flows from financing activities |  |  |
Proceeds from (Repayment of) short-term borrowings, net | (1,536,401) | 1,842,517 | 5,852,426
Proceeds from long-term borrowings | 2,795,823 | 3,434,452 | 6,856,321
Proceeds from debt securities | 20,476,245 | 18,402,589 | 36,737,757
Repayment of long-term borrowings | (654,581) | (870,586) | (812,428)
Repayment of debt securities | (24,687,409) | (10,116,048) | (9,440,260)
Payment of lease liabilities | (612,828) | (574,239) | (562,646)
Settlement of derivative instruments, net | 545,483 | 332,263 | 407,627
Change in non-controlling interests | (35,986) | 218,766 | 175,645
Repayment of hybrid bond | 0 | 0 | (169,537)
Dividends paid (hybrid bond) | (10,316) | (10,212) | (13,461)
Dividends paid | (126,903) | (45,323) | (42,348)
Other cash inflow (outflow) from financing activities, net | (2,428) | 47,703 | 8,803
Net cash provided by (used in) financing activities | (3,849,301) | 12,661,882 | 38,997,899
Net increase (decrease) in cash and cash equivalents before effect of exchange rate fluctuations | (2,066,292) | 1,110,287 | 566,646
Effect of exchange rate fluctuations on cash held | 106,384 | (2,180) | 32,896
Net increase (decrease) in cash and cash equivalents | (1,959,908) | 1,108,107 | 599,542
Cash and cash equivalents at January 1 | 4,342,887 | 3,234,780 | 2,635,238
Cash and cash equivalents at December 31 | ₩ 2,382,979 | ₩ 4,342,887 | ₩ 3,234,780

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- Definition The effect of exchange rate changes on cash and cash equivalents held or due in a foreign currency. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 28 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_28&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The cash flows from income taxes paid or refunded, classified as operating activities. [Refer: Income taxes paid (refund)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 35 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 14 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_14_f&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The cash inflow from sales of intangible assets, classified as investing activities. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_16_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The cash outflow for repayments of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 17 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Adjustment for gain on disposal of investments in associates and joint ventures. + References No definition available. + Details
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- Definition Adjustment for gains on disposal of financial assets. + References No definition available. + Details
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- Definition Adjustment for impairment loss on investments in associates and joint ventures. + References No definition available. + Details
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- Definition Adjustment for investments in associates and joint ventures. + References No definition available. + Details
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- Definition Loss on abandonment of property, plant and equipment. + References No definition available. + Details
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- Definition Adjustment for losses on disposal of intangible assets. + References No definition available. + Details
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- Definition Adjustment for losses on sale of financial assets. + References No definition available. + Details
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- Definition Adjustments for decrease increase in non trade account receivable. + References No definition available. + Details
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- Definition Adjustments for employee benefit expense. + References No definition available. + Details
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- Definition Adjustments for gain on financial assets held for trading. + References No definition available. + Details
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- Definition Adjustments for impairment loss reversal of impairment loss on investments in associates and joint ventures. + References No definition available. + Details
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- Definition Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss intangible assets. + References No definition available. + Details
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- Definition Adjustments for increase decrease in accrued expenses. + References No definition available. + Details
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- Definition Adjustments for increase decrease in provisions. + References No definition available. + Details
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- Definition Adjustments for increase decrease in working capital. + References No definition available. + Details
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- Definition Adjustments for loss gain on valuation and transaction of derivatives. + References No definition available. + Details
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- Definition Adjustments for loss on disposals property plant and equipment. + References No definition available. + Details
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- Definition Cash in flows outflows from change in noncontrolling interests. + References No definition available. + Details
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- Definition Collection of loans. + References No definition available. + Details
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- Definition Decrease in deposits. + References No definition available. + Details
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- Definition Dividends paid (hybrid bond) classified as financing activities. + References No definition available. + Details
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- Definition Increase in deposits. + References No definition available. + Details
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- Definition Net cash inflow (outflow) from changes in consolidation scope. + References No definition available. + Details
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- Definition Payments to plan asset. + References No definition available. + Details
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- Definition Repayments of hybrid bond classified as financing activities. + References No definition available. + Details
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- Definition Settlement of derivative instruments. + References No definition available. + Details
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