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Investments in Associates (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of associates [Line Items] |  |  |  |  |
Acquisition cost |  | ₩ 2,539,956 |  | ₩ 2,338,421 |
Book value |  |  |  |  |
Beginning balance |  | 4,064,820 |  | 3,837,421 |
Acquisition |  | 17,659 |  | 82,283 |
Disposal |  |  |  | 0 |
Dividends received |  | (136,012) |  | (73,049) |
Share of income (loss) |  | 37,418 |  | 216,009 |
Other comprehensive income (loss) |  | 39,199 |  | 14,148 |
Others (book value) |  | 228,718 |  | (11,992) |
Ending balance |  | ₩ 4,251,802 |  | ₩ 4,064,820 |
Korea Gas Corporation |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [1] | Importing and wholesaling LNG |  | Importing and wholesaling LNG |
Location | [1] | KOREA |  | KOREA |
Percentage of ownership | [1] | 20.47% |  | 20.47% |
Effective percentage of ownership | [2] | 21.57% |  | 21.57% |
Acquisition cost | [1] | ₩ 94,500 |  | ₩ 94,500 |
Book value |  |  |  |  |
Beginning balance |  | 1,701,848 |  | 1,618,868 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (25,704) |  | 0 |
Share of income (loss) |  | 8,511 |  | 107,952 |
Other comprehensive income (loss) |  | 12,687 |  | (24,843) |
Others (book value) |  | (3,375) |  | (129) |
Ending balance |  | 1,693,967 |  | 1,701,848 |
The fair value of associates | [3] | 715,365 |  | 910,980 |
Share in net assets |  | 1,757,205 |  | 1,834,141 |
Total assets |  | 39,311,855 | [4] | 39,689,692 | [5]
Total liabilities |  | 31,165,334 | [4] | 31,186,488 | [5]
Net assets |  | 8,146,521 |  | 8,503,204 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (63,238) |  | (132,293) |
Sales of Associates |  | 24,982,640 | [4] | 26,185,038 | [5]
Profit (loss) for the period of Associates |  | ₩ 38,764 | [4] | ₩ 523,480 | [5]
Korea Electric Power Industrial Development Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Electricity metering and others |  | Electricity metering and others |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 4,727 |  | ₩ 4,727 |
Book value |  |  |  |  |
Beginning balance |  | 21,838 |  | 21,838 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (1,598) |  | (1,872) |
Share of income (loss) |  | 5,002 |  | 2,584 |
Other comprehensive income (loss) |  | 0 |  | (102) |
Others (book value) |  | 151 |  | (610) |
Ending balance |  | 25,393 |  | 21,838 |
The fair value of associates |  | 33,089 |  | 33,609 |
Share in net assets |  | 25,393 |  | 21,838 |
Total assets |  | 186,434 |  | 144,425 |
Total liabilities |  | 98,872 |  | 69,123 |
Net assets |  | 87,562 |  | 75,302 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 306,026 |  | 325,694 |
Profit (loss) for the period of Associates |  | ₩ 17,467 |  | ₩ 9,987 |
YTN Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Broadcasting |  | Broadcasting |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 21.43% |  | 21.43% |
Effective percentage of ownership | [2] | 21.43% |  | 21.43% |
Acquisition cost |  | ₩ 59,000 |  | ₩ 59,000 |
Book value |  |  |  |  |
Beginning balance |  | 40,338 |  | 40,606 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (180) |  | (180) |
Share of income (loss) |  | (449) |  | 545 |
Other comprehensive income (loss) |  | 5 |  | (186) |
Others (book value) |  | 33 |  | (447) |
Ending balance |  | 39,747 |  | 40,338 |
The fair value of associates |  | 18,450 |  | 18,900 |
Share in net assets |  | 39,747 |  | 40,346 |
Total assets |  | 281,699 |  | 286,964 |
Total liabilities |  | 96,211 |  | 98,682 |
Net assets |  | 185,488 |  | 188,282 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | (6) |
Others (consolidated FS) |  | 0 |  | (2) |
Sales of Associates |  | 127,782 |  | 132,382 |
Profit (loss) for the period of Associates |  | ₩ (1,230) |  | ₩ 1,587 |
Cheongna Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Generating and distributing vapor and hot/cold water |  | Generating and distributing vapor and hot/cold water |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 43.90% |  | 43.90% |
Effective percentage of ownership | [2] | 43.90% |  | 43.90% |
Acquisition cost |  | ₩ 48,353 |  | ₩ 48,353 |
Book value |  |  |  |  |
Beginning balance |  | 3,465 |  | 8,337 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (2,054) |  | (4,872) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 1,411 |  | 3,465 |
Share in net assets |  | (112) |  | 1,015 |
Total assets |  | 383,034 |  | 431,234 |
Total liabilities |  | 383,288 |  | 428,921 |
Net assets |  | (254) |  | 2,313 |
Investment differential |  | 2,584 |  | 2,584 |
Intercompany transaction |  | (1,061) |  | (134) |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 68,626 |  | 64,594 |
Profit (loss) for the period of Associates |  | ₩ (2,567) |  | ₩ (11,110) |
Gangwon Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 15.00% |  | 15.00% |
Effective percentage of ownership | [2] | 15.00% |  | 15.00% |
Acquisition cost | [6] | ₩ 5,725 |  | ₩ 5,725 |
Book value |  |  |  |  |
Beginning balance |  | 13,220 |  | 13,855 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (2,272) |  | (2,272) |
Share of income (loss) |  | 1,379 |  | 1,637 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 12,327 |  | 13,220 |
Share in net assets |  | 12,278 |  | 13,171 |
Total assets |  | 83,528 |  | 89,614 |
Total liabilities |  | 1,674 |  | 1,805 |
Net assets |  | 81,854 |  | 87,809 |
Investment differential |  | 49 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 49 |
Sales of Associates |  | 24,116 |  | 25,407 |
Profit (loss) for the period of Associates |  | ₩ 9,380 |  | ₩ 10,926 |
Hyundai Green Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 88,885 |  | ₩ 88,885 |
Book value |  |  |  |  |
Beginning balance |  | 127,160 |  | 114,806 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (8,889) |  | (8,889) |
Share of income (loss) |  | 5,982 |  | 21,243 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 124,253 |  | 127,160 |
Share in net assets |  | 124,253 |  | 127,160 |
Total assets |  | 1,086,738 |  | 1,127,220 |
Total liabilities |  | 658,279 |  | 688,738 |
Net assets |  | 428,459 |  | 438,482 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 507,653 |  | 501,798 |
Profit (loss) for the period of Associates |  | ₩ 26,222 |  | ₩ 66,925 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | As of December 31, 2019, Hyundai Green Power Co., Ltd., an associate of the Group, which engages in the byproduct gas power generating business, entered into a project financing agreement with a limit of W919.2 billion with Korea Development Bank and others. At a certain period in the future, the Group has call option against the financial investors (Korea Development Bank and others) and also has an obligation to purchase its shares when claimed by the financial investors. At a certain period in the future, the Group has put option against Hyundai Steel Company and a third party designated by Hyundai Steel Company (collectively, "Hyundai Steel Group"), the operating investor of Hyundai Green Power Co., Ltd., according to the conditions of the agreement and also has an obligation to sell its shares upon request from Hyundai Steel Company. |  | As of December 31, 2018, Hyundai Green Power Co., Ltd., an associate of the Company, which engages in the byproduct gas power generating business, entered into a project financing agreement with a limit of W852.1 billion with Korea Development Bank and others. At a certain period in the future, the Company has call option against the financial investors (Korea Development Bank and others) and also has an obligation to purchase its shares when claimed by the financial investors. At a certain period in the future, the Company has put option against Hyundai Steel Company and a third party designated by Hyundai Steel Company (collectively, "Hyundai Steel Company"), the operating investor of Hyundai Green Power Co., Ltd., according to the conditions of the agreement and also has an obligation to sell its shares upon request from Hyundai Steel Company. |
Korea Power Exchange |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [7] | Management of power market and others |  | Management of power market and others |
Location | [7] | KOREA |  | KOREA |
Percentage of ownership | [7] | 100.00% |  | 100.00% |
Effective percentage of ownership | [2] | 100.00% |  | 100.00% |
Acquisition cost | [7] | ₩ 127,839 |  | ₩ 127,839 |
Book value |  |  |  |  |
Beginning balance |  | 251,802 |  | 237,631 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 10,907 |  | 16,031 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (3,810) |  | (1,860) |
Ending balance |  | 258,899 |  | 251,802 |
Share in net assets |  | 260,757 |  | 251,802 |
Total assets |  | 315,683 |  | 304,318 |
Total liabilities |  | 54,926 |  | 52,516 |
Net assets |  | 260,757 |  | 251,802 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (1,858) |  | 0 |
Sales of Associates |  | 107,034 |  | 108,571 |
Profit (loss) for the period of Associates |  | ₩ 8,268 |  | ₩ 16,031 |
AMEC Partners Korea Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Resources development |  | Resources development | [8]
Location |  | KOREA |  | KOREA | [8]
Percentage of ownership |  | 19.00% |  | 19.00% | [8]
Effective percentage of ownership | [2] | 19.00% |  | 19.00% |
Acquisition cost |  | ₩ 0 |  | ₩ 707 | [8]
Book value |  |  |  |  |
Beginning balance |  | 209 |  | 215 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | (6) |
Other comprehensive income (loss) |  | 3 |  | 0 |
Others (book value) |  | (212) |  | 0 |
Ending balance |  | 0 |  | 209 |
Share in net assets |  |  |  | 209 |
Total assets |  |  |  | 1,113 |
Total liabilities |  |  |  | 14 |
Net assets |  |  |  | 1,099 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ 0 |  | ₩ (26) |
Hyundai Energy |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [9] | Power generation |  | Power generation |
Location | [9] | KOREA |  | KOREA |
Percentage of ownership | [9] | 30.66% |  | 30.66% |
Effective percentage of ownership | [2] | 46.30% |  | 46.30% |
Acquisition cost | [9] | ₩ 71,070 |  | ₩ 71,070 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (39,217) |  | (26,285) |
Total assets |  | 465,238 |  | 470,818 |
Total liabilities |  | 549,940 |  | 527,590 |
Net assets |  | (84,702) |  | (56,772) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (954) |  | (996) |
Others (consolidated FS) |  | 40,171 |  | 27,281 |
Sales of Associates |  | 91,842 |  | 101,998 |
Profit (loss) for the period of Associates |  | ₩ (27,882) |  | ₩ (33,947) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | The Company had placed guarantees for a fixed return on the investment to NH Power II Co., Ltd. and National Agricultural Cooperative Federation ("NACF") and had obtained the rights to acquire the investment securities in return preferentially. In addition, NH Power II Co., Ltd. and NACF have a right, which can be exercised for 30 days starting from 2 months to 1 month prior to 17 years after the termination date of the contract to sell their shares to the Company. |  | The Company had placed guarantees for a fixed return on the investment to NH Power II Co., Ltd. and National Agricultural Cooperative Federation ("NACF") and had obtained the rights to acquire the investment securities in return preferentially. In addition, NH Power II Co., Ltd. and NACF have a right, which can be exercised for 30 days starting from 2 months to 1 month prior to 17 years after the termination date of the contract to sell their shares to the Company. |
Ecollite Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Artificial light-weight aggregate |  | Artificial light-weight aggregate |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 36.10% |  | 36.10% |
Effective percentage of ownership | [2] | 36.10% |  | 36.10% |
Acquisition cost |  | ₩ 1,516 |  | ₩ 1,516 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | 554 |  | 589 |
Total assets |  | 1,838 |  | 1,944 |
Total liabilities |  | 304 |  | 312 |
Net assets |  | 1,534 |  | 1,632 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (554) |  | (589) |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (97) |  | ₩ (68) |
Taebaek Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 25.00% |  | 25.00% |
Effective percentage of ownership | [2] | 25.00% |  | 25.00% |
Acquisition cost |  | ₩ 3,810 |  | ₩ 3,810 |
Book value |  |  |  |  |
Beginning balance |  | 5,665 |  | 5,319 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | (196) |
Share of income (loss) |  | 1,374 |  | 542 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 7,039 |  | 5,665 |
Share in net assets |  | 7,039 |  | 5,665 |
Total assets |  | 36,182 |  | 36,986 |
Total liabilities |  | 8,027 |  | 14,325 |
Net assets |  | 28,155 |  | 22,661 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 6,177 |  | 8,233 |
Profit (loss) for the period of Associates |  | ₩ 5,494 |  | ₩ 2,170 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | In the case where non-controlling shareholders decide to dispose of their shares in Taebaek Wind Power Co., Ltd. after the warrant period of defect repair for wind power generator has expired, the Group acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with consideration of various factors such as financial status and business situation. |  | In case non-controlling shareholders decide to dispose of their shares in Taebaek Wind Power Co., Ltd. after the warrant period of defect repair for wind power generator has expired, the Company acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with consideration of various factors such as financial status and business situation. |
Significant restrictions on its abilities |  | Financial institutions can reject or defer an approval with regard to the request for fund executions on subordinated loans of shareholders in order to pay senior loans based on the loan agreement. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior written consent of financial institutions is obtained. |  | Financial institutions can reject or defer an approval with regard to the request for fund executions on subordinated loans of shareholders in order to pay senior loans based on the loan agreement. |
Taeback Guinemi Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 25.00% |  | 25.00% |
Effective percentage of ownership | [2] | 25.00% |  | 25.00% |
Acquisition cost |  | ₩ 3,420 |  | ₩ 3,420 |
Book value |  |  |  |  |
Beginning balance |  | 2,569 |  | 3,089 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  |  |  | 0 |
Share of income (loss) |  | (16) |  | (520) |
Other comprehensive income (loss) |  |  |  | 0 |
Others (book value) |  |  |  | 0 |
Ending balance |  | 2,553 |  | 2,569 |
Share in net assets |  | 2,553 |  | 2,569 |
Total assets |  | 35,061 |  | 10,929 |
Total liabilities |  | 24,847 |  | 653 |
Net assets |  | 10,214 |  | 10,276 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 349 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (61) |  | ₩ (2,082) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | At the commencement of the operation of the faciliity, the Group has a right to purchase all or part of the shares from the shareholders at fair value. |  |  |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the shareholder's agreement are satisfied. Also, shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Pyeongchang Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 25.00% |  | 25.00% |
Effective percentage of ownership | [2] | 25.00% |  | 25.00% |
Acquisition cost |  | ₩ 3,875 |  | ₩ 3,875 |
Book value |  |  |  |  |
Beginning balance |  | 5,419 |  | 4,136 |
Acquisition |  | 0 |  | 0 |
Disposal |  |  |  | 0 |
Dividends received |  |  |  | 0 |
Share of income (loss) |  | 458 |  | 1,283 |
Other comprehensive income (loss) |  |  |  | 0 |
Others (book value) |  |  |  | 0 |
Ending balance |  | 5,877 |  | 5,419 |
Share in net assets |  | 5,877 |  | 5,419 |
Total assets |  | 79,756 |  | 82,038 |
Total liabilities |  | 56,248 |  | 60,362 |
Net assets |  | 23,508 |  | 21,676 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 10,713 |  | 12,615 |
Profit (loss) for the period of Associates |  | ₩ 2,010 |  | ₩ 4,249 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | In the case where non-controlling shareholders decide to dispose of their shares in Pyeongchang Wind Power Co., Ltd. after commercial operation of the power plant has started, the Group acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with the careful consideration of various factors such as financial status and business situation. |  | In case non-controlling shareholders decide to dispose of their shares in Pyeongchang Wind Power Co., Ltd. after commercial operation of the power plant has started, the Company acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with the careful consideration of various factors such as financial status and business situation. |
Significant restrictions on its abilities |  | Principals on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior written consent of financial institutions is obtained. |  | Principals on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. |
Daeryun Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [8] | Power generation |  | Power generation |
Location | [8] | KOREA |  | KOREA |
Percentage of ownership | [8] | 9.34% |  | 9.34% |
Effective percentage of ownership | [2] | 9.34% |  | 9.34% |
Acquisition cost | [8] | ₩ 40,854 |  | ₩ 40,854 |
Book value |  |  |  |  |
Beginning balance |  | 26,099 | [10] | 25,113 |
Acquisition |  | 0 |  | 0 | [10]
Disposal |  | 0 |  | 0 | [10]
Dividends received | [10] |  |  | 0 |
Share of income (loss) |  | 173 |  | (189) | [10]
Other comprehensive income (loss) | [10] |  |  | 184 |
Others (book value) |  | (25) |  | 991 | [10]
Ending balance |  | 26,247 |  | 26,099 | [10]
Share in net assets |  | 27,066 |  | 26,919 |
Total assets |  | 802,546 |  | 798,569 |
Total liabilities |  | 512,757 |  | 510,358 |
Net assets |  | 289,789 |  | 288,211 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (819) |  | (820) |
Sales of Associates |  | 163,129 |  | 62,252 |
Profit (loss) for the period of Associates |  | ₩ 1,836 |  | ₩ (4,958) |
Significant restrictions on its abilities |  | Principals on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained and Shares cannot be wholly or partially transferred without consent of the majority of lenders is obtained. |  | Principals on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. |
Changjuk Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 30.00% |  | 30.00% |
Effective percentage of ownership | [2] | 30.00% |  | 30.00% |
Acquisition cost |  | ₩ 3,801 |  | ₩ 3,801 |
Book value |  |  |  |  |
Beginning balance |  | 8,086 |  | 7,515 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | (416) |
Share of income (loss) |  | 434 |  | 987 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 8,520 |  | 8,086 |
Share in net assets |  | 8,520 |  | 8,086 |
Total assets |  | 29,875 |  | 33,148 |
Total liabilities |  | 1,476 |  | 6,194 |
Net assets |  | 28,399 |  | 26,954 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 6,076 |  | 7,929 |
Profit (loss) for the period of Associates |  | ₩ 1,447 |  | ₩ 3,291 |
Significant restrictions on its abilities |  |  |  | Principals on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. |
KNH Solar Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 27.00% |  | 27.00% |
Effective percentage of ownership | [2] | 27.00% |  | 27.00% |
Acquisition cost |  | ₩ 1,296 |  | ₩ 1,296 |
Book value |  |  |  |  |
Beginning balance |  | 2,337 |  | 2,218 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 45 |  | 119 |
Other comprehensive income (loss) |  |  |  | 0 |
Others (book value) |  |  |  | 0 |
Ending balance |  | 2,382 |  | 2,337 |
Share in net assets |  | 2,382 |  | 2,337 |
Total assets |  | 20,465 |  | 22,598 |
Total liabilities |  | 11,641 |  | 13,942 |
Net assets |  | 8,824 |  | 8,656 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 3,377 |  | 3,586 |
Profit (loss) for the period of Associates |  | ₩ 278 |  | ₩ 439 |
Significant restrictions on its abilities |  | Principal and interest, dividends to shareholders cannot be paid without written consent of financial institutions. Also, Shares cannot be wholly or partially transferred without consent of other shareholders is obtained. |  | Principal and interest, dividends to shareholders cannot be paid without written consent of financial institutions. |
SPC Power Corporation |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | PHILIPPINES |  | PHILIPPINES |
Percentage of ownership |  | 38.00% |  | 38.00% |
Effective percentage of ownership | [2] | 38.00% |  | 38.00% |
Acquisition cost |  | ₩ 20,635 |  | ₩ 20,635 |
Book value |  |  |  |  |
Beginning balance |  | 57,558 |  | 52,283 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (14,229) |  | (9,549) |
Share of income (loss) |  | 5,929 |  | 4,235 |
Other comprehensive income (loss) |  | 14,286 |  | 10,578 |
Others (book value) |  | 39 |  | 11 |
Ending balance |  | 63,583 |  | 57,558 |
The fair value of associates |  | 117,230 |  | 72,710 |
Share in net assets |  | 86,672 |  | 79,336 |
Total assets |  | 250,544 |  | 225,599 |
Total liabilities |  | 22,459 |  | 16,819 |
Net assets |  | 228,085 |  | 208,780 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (23,089) |  | (21,778) |
Sales of Associates |  | 63,218 |  | 50,317 |
Profit (loss) for the period of Associates |  | ₩ 39,876 |  | ₩ 37,355 |
Gemeng International Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHINA |  | CHINA |
Percentage of ownership |  | 34.00% |  | 34.00% |
Effective percentage of ownership | [2] | 34.00% |  | 34.00% |
Acquisition cost |  | ₩ 413,153 |  | ₩ 413,153 |
Book value |  |  |  |  |
Beginning balance |  | 647,010 |  | 649,973 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (11,468) |  | (11,246) |
Share of income (loss) |  | 26,300 |  | 15,156 |
Other comprehensive income (loss) |  | 9,209 |  | (6,873) |
Others (book value) |  | (155) |  | 0 |
Ending balance |  | 670,896 |  | 647,010 |
Share in net assets |  | 670,896 |  | 930,028 |
Total assets |  | 6,758,957 |  | 7,155,937 |
Total liabilities |  | 4,785,740 |  | 4,420,561 |
Net assets |  | 1,973,217 |  | 2,735,376 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | (283,018) |
Sales of Associates |  | 2,024,730 |  | 1,921,367 |
Profit (loss) for the period of Associates |  | ₩ 95,435 |  | ₩ 120,558 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | Gemeng International Energy Co., Ltd. issued put options on 8% of its shares to its financial investors, KEPCO Woori Sprott PEF (NPS Co-Pa PEF). If the investment fund is not collected until the maturity date (December 25, 2023, two years extension is possible), PEF can exercise the option at strike price which is the same as a principal investment price (including operating fees ratio of below 1% per annum), and also, the Group provided a performance guarantee on this agreement. |  | Gemeng International Energy Co., Ltd., issued put options on 8% of its shares to its financial investors, KEPCO Woori Sprott PEF (NPS Co-Pa PEF). If the investment fund is not collected until the maturity date (December 25, 2023, two years extension is possible), PEF can exercise the option at strike price which is the same as a principal investment price (including operating fees ratio of below 1% per annum), and also, the Company provided a performance guarantee on this agreement. |
PT. Cirebon Electric Power |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | INDONESIA |  | INDONESIA |
Percentage of ownership |  | 27.50% |  | 27.50% |
Effective percentage of ownership | [2] | 27.50% |  | 27.50% |
Acquisition cost |  | ₩ 40,365 |  | ₩ 40,365 |
Book value |  |  |  |  |
Beginning balance |  | 108,628 |  | 97,410 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  |  |  | (4,432) |
Share of income (loss) |  | 11,079 |  | 9,385 |
Other comprehensive income (loss) |  | (65) |  | 6,265 |
Others (book value) |  | 3,783 |  | 0 |
Ending balance |  | 123,425 |  | 108,628 |
Share in net assets |  | 123,425 |  | 108,628 |
Total assets |  | 852,457 |  | 876,069 |
Total liabilities |  | 403,639 |  | 481,061 |
Net assets |  | 448,818 |  | 395,008 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 277,370 |  | 274,962 |
Profit (loss) for the period of Associates |  | ₩ 39,581 |  | ₩ 33,144 |
KNOC Nigerian East Oil |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [11] | Resources development |  | Resources development |
Location | [11] | NIGERIA |  | NIGERIA |
Percentage of ownership | [11] | 14.63% |  | 14.63% |
Effective percentage of ownership | [2] | 14.63% |  | 14.63% |
Acquisition cost | [11] | ₩ 12 |  | ₩ 12 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (27) |  | 2,615 |
Other comprehensive income (loss) |  | (380) |  | (471) |
Others (book value) |  | 407 |  | (2,144) |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (11,113) |  | (10,706) |
Total assets |  | 58,402 |  | 78,841 |
Total liabilities |  | 134,361 |  | 152,017 |
Net assets |  | (75,959) |  | (73,176) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 11,113 |  | 10,706 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (182) |  | ₩ (398) |
KNOC Nigerian West Oil |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [11] | Resources development |  | Resources development |
Location | [11] | NIGERIA |  | NIGERIA |
Percentage of ownership | [11] | 14.63% |  | 14.63% |
Effective percentage of ownership | [2] | 14.63% |  | 14.63% |
Acquisition cost | [11] | ₩ 12 |  | ₩ 12 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (29) |  | 2,342 |
Other comprehensive income (loss) |  | (349) |  | (414) |
Others (book value) |  | 378 |  | (1,928) |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (10,213) |  | (9,835) |
Total assets |  | 54,275 |  | 70,437 |
Total liabilities |  | 124,086 |  | 137,663 |
Net assets |  | (69,811) |  | (67,226) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 10,213 |  | 9,835 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (180) |  | ₩ (400) |
PT Wampu Electric Power |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | INDONESIA |  | INDONESIA |
Percentage of ownership |  | 46.00% |  | 46.00% |
Effective percentage of ownership | [2] | 46.00% |  | 46.00% |
Acquisition cost |  | ₩ 21,292 |  | ₩ 21,292 |
Book value |  |  |  |  |
Beginning balance |  | 31,097 |  | 29,403 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (2,867) |  | 408 |
Other comprehensive income (loss) |  | 2 |  | 1,286 |
Others (book value) |  | 1,123 |  | 0 |
Ending balance |  | 29,355 |  | 31,097 |
Share in net assets |  | 29,355 |  | 31,097 |
Total assets |  | 222,266 |  | 223,009 |
Total liabilities |  | 158,451 |  | 155,406 |
Net assets |  | 63,815 |  | 67,603 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 18,165 |  | 13,463 |
Profit (loss) for the period of Associates |  | ₩ (2,315) |  | ₩ 4,624 |
PT. Bayan Resources TBK |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Resources development |  | Resources development |
Location |  | INDONESIA |  | INDONESIA |
Percentage of ownership |  | 20.00% |  | 20.00% |
Effective percentage of ownership | [2] | 20.00% |  | 20.00% |
Acquisition cost |  | ₩ 615,860 |  | ₩ 615,860 |
Book value |  |  |  |  |
Beginning balance |  | 511,646 |  | 451,831 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (71,100) |  | 0 |
Share of income (loss) |  | 6,181 |  | (33,651) |
Other comprehensive income (loss) |  | (1,586) |  | 74,776 |
Others (book value) |  | 0 |  | 18,690 |
Ending balance |  | 445,141 |  | 511,646 |
The fair value of associates |  | 880,860 |  | 1,017,601 |
Share in net assets |  | 136,012 |  | 164,262 |
Total assets |  | 1,302,637 |  | 1,388,199 |
Total liabilities |  | 622,576 |  | 566,890 |
Net assets |  | 680,061 |  | 821,309 |
Investment differential |  | 385,508 |  | 423,763 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (76,379) |  | (76,379) |
Sales of Associates |  | 1,707,387 |  | 1,707,387 |
Profit (loss) for the period of Associates |  | ₩ 252,855 |  | ₩ 521,666 |
S-Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 49.00% |  | 49.00% |
Effective percentage of ownership | [2] | 49.00% |  | 49.00% |
Acquisition cost |  | ₩ 132,300 |  | ₩ 132,300 |
Book value |  |  |  |  |
Beginning balance |  | 114,566 |  | 116,945 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 1,218 |  | (2,326) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | (53) |
Ending balance |  | 115,784 |  | 114,566 |
Share in net assets |  | 117,403 |  | 116,293 |
Total assets |  | 805,622 |  | 825,354 |
Total liabilities |  | 566,025 |  | 588,022 |
Net assets |  | 239,597 |  | 237,332 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (1,619) |  | (1,727) |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 576,554 |  | 551,378 |
Profit (loss) for the period of Associates |  | ₩ 2,319 |  | ₩ (6,185) |
Pioneer Gas Power Limited |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [12] | Power generation |  | Power generation |
Location | [12] | INDIA |  | INDIA |
Percentage of ownership | [12] | 38.50% |  | 38.50% |
Effective percentage of ownership | [2] | 38.50% |  | 38.50% |
Acquisition cost | [12] | ₩ 49,831 |  | ₩ 49,831 |
Book value |  |  |  |  |
Beginning balance |  | 20,395 |  | 38,659 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (20,784) |  | (17,684) |
Other comprehensive income (loss) |  | 389 |  | (580) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 20,395 |
Share in net assets |  | (22,459) |  | (1,951) |
Total assets |  | 309,059 |  | 311,742 |
Total liabilities |  | 367,399 |  | 316,810 |
Net assets |  | (58,340) |  | (5,068) |
Investment differential |  | 22,278 |  | 22,278 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 181 |  | 68 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | (54,501) |  | ₩ (45,934) |
Unrecognized equity interest |  | 114 |  |  |
Accumulated unrecognized equity interest |  | ₩ 114 |  |  |
Eurasia Energy Holdings |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation and resources development |  | Power generation and resources development |
Location |  | RUSSIA |  | RUSSIA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 461 |  | ₩ 461 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (186) |  | (179) |
Total assets |  | 592 |  | 572 |
Total liabilities |  | 1,056 |  | 1,020 |
Net assets |  | (464) |  | (448) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 186 |  | 179 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | 0 |  | 0 |
Unrecognized equity interest |  | 6 |  | 7 |
Accumulated unrecognized equity interest |  | ₩ 185 |  | ₩ 179 |
Xe-Pian Xe-Namnoy Power |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | LAOS |  | LAOS |
Percentage of ownership |  | 25.00% |  | 25.00% |
Effective percentage of ownership | [2] | 25.00% |  | 25.00% |
Acquisition cost |  | ₩ 87,426 |  | ₩ 84,374 |
Book value |  |  |  |  |
Beginning balance |  | 77,165 |  | 61,779 |
Acquisition |  | 3,052 |  | 12,893 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (10,210) |  | (479) |
Other comprehensive income (loss) |  | 2,928 |  | 2,972 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 72,935 |  | 77,165 |
Share in net assets |  | 74,026 |  | 78,207 |
Total assets |  | 1,194,125 |  | 1,015,013 |
Total liabilities |  | 898,023 |  | 702,187 |
Net assets |  | 296,102 |  | 312,826 |
Investment differential |  | 305 |  | 253 |
Intercompany transaction |  | (1,106) |  | (1,006) |
Others (consolidated FS) |  | (290) |  | (289) |
Sales of Associates |  | 6,731 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (40,437) |  | ₩ (1,214) |
Hadong Mineral Fiber Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [8] | Recycling fly ashes |  | Recycling fly ashes |
Location | [8] | KOREA |  | KOREA |
Percentage of ownership | [8] | 8.33% |  | 8.33% |
Effective percentage of ownership | [2] | 8.33% |  | 8.33% |
Acquisition cost | [8] | ₩ 50 |  | ₩ 50 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (2) |  | (2) |
Total assets |  | 203 |  | 203 |
Total liabilities |  | 231 |  | 231 |
Net assets |  | (28) |  | (28) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 2 |  | 2 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | 0 |  | 0 |
Unrecognized equity interest |  | 0 |  | 0 |
Accumulated unrecognized equity interest |  | ₩ 2 |  | ₩ 2 |
Green Biomass Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [13] | Power generation |  | Power generation |
Location | [13] | KOREA |  | KOREA |
Percentage of ownership | [13] | 7.85% |  | 8.80% |
Effective percentage of ownership | [2] | 7.85% |  | 8.80% |
Acquisition cost | [13] | ₩ 714 |  | ₩ 714 |
Book value |  |  |  |  |
Beginning balance |  | 115 |  | 208 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (73) |  | (93) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 66 |  | 0 |
Ending balance |  | 108 |  | 115 |
Share in net assets |  | 108 |  | 115 |
Total assets |  | 3,866 |  | 4,411 |
Total liabilities |  | 2,487 |  | 3,107 |
Net assets |  | 1,379 |  | 1,304 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 17 |  | 909 |
Profit (loss) for the period of Associates |  | ₩ (925) |  | ₩ (1,057) |
PT. Mutiara Jawa |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Manufacturing and operating floating coal terminal |  | Manufacturing and operating floating coal terminal |
Location |  | INDONESIA |  | INDONESIA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 2,978 |  | ₩ 2,978 |
Book value |  |  |  |  |
Beginning balance |  | 365 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  |  |  | 0 |
Dividends received |  |  |  | 0 |
Share of income (loss) |  | 1,031 |  | 349 |
Other comprehensive income (loss) |  | 42 |  | 16 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 1,438 |  | 365 |
Share in net assets |  | 1,438 |  | 365 |
Total assets |  | 26,109 |  | 24,022 |
Total liabilities |  | 21,150 |  | 22,763 |
Net assets |  | 4,959 |  | 1,259 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 11,196 |  | 14,393 |
Profit (loss) for the period of Associates |  | 3,396 |  | 3,917 |
Unrecognized equity interest |  | 0 |  |  |
Unrecognized equity interest |  |  |  | (746) |
Accumulated unrecognized equity interest |  | ₩ 0 |  | ₩ 0 |
Samcheok Eco Materials Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [14] | Recycling fly ashes |  | Recycling fly ashes |
Location | [14] | KOREA |  | KOREA |
Percentage of ownership | [14] | 2.35% |  | 2.35% |
Effective percentage of ownership | [2] | 25.54% |  | 25.54% |
Acquisition cost | [14] | ₩ 686 |  | ₩ 686 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | 5,980 |  | 505 |
Total assets |  | 26,625 |  | 24,391 |
Total liabilities |  | 3,209 |  | 2,921 |
Net assets |  | 23,416 |  | 21,470 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (5,980) |  | (505) |
Sales of Associates |  | 10,876 |  | 4,135 |
Profit (loss) for the period of Associates |  | 1,946 |  | (1,836) |
Unrecognized equity interest |  |  |  | 1,285 |
Unrecognized equity interest |  | (497) |  |  |
Accumulated unrecognized equity interest |  | ₩ 788 |  | ₩ 1,285 |
Shareholders' agreements that may cause future economic resource or cash outflows |  |  |  | The Company has the rights to purchase the stocks should preferred stockholders elect to sell their stocks on the expected sell date (3 years from preferred stock payment date) and is required to guarantee the promised yield when preferred stockholders sell their stocks. |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the shareholder's agreement are satisfied. Also, shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Noeul Green Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 1,740 |  | ₩ 1,740 |
Book value |  |  |  |  |
Beginning balance |  | 8,015 |  | 2,067 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (1,395) |  | 5,687 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (10) |  | 261 |
Ending balance |  | 6,610 |  | 8,015 |
Share in net assets |  | 6,610 |  | 8,015 |
Total assets |  | 137,370 |  | 147,886 |
Total liabilities |  | 114,578 |  | 120,249 |
Net assets |  | 22,792 |  | 27,637 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 36,435 |  | 58,686 |
Profit (loss) for the period of Associates |  | ₩ (4,810) |  | ₩ 19,453 |
Naepo Green Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 41.67% |  | 41.67% |
Effective percentage of ownership | [2] | 41.67% |  | 41.67% |
Acquisition cost |  | ₩ 29,200 |  | ₩ 29,200 |
Book value |  |  |  |  |
Beginning balance |  | 0 | [15] | 20,598 |
Acquisition |  | 0 |  | 0 | [15]
Disposal |  | 0 |  | 0 | [15]
Dividends received |  | 0 |  | 0 | [15]
Share of income (loss) |  | 0 |  | (13,511) | [15]
Other comprehensive income (loss) |  | 0 |  | 0 | [15]
Others (book value) |  | 0 |  | (7,087) | [15]
Ending balance |  | 0 |  | 0 | [15]
Share in net assets |  | (9,281) |  | 7,085 |
Total assets |  | 77,070 |  | 93,194 |
Total liabilities |  | 99,345 |  | 76,190 |
Net assets |  | (22,275) |  | 17,004 |
Investment differential |  | 2 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 9,279 |  | (7,085) |
Sales of Associates |  | 6,572 |  | 6,459 |
Profit (loss) for the period of Associates |  | (31,577) |  | ₩ (6,623) |
Unrecognized equity interest |  | 9,281 |  |  |
Accumulated unrecognized equity interest |  | ₩ 9,281 |  |  |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Goseong Green Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 1.12% |  | 1.12% |
Effective percentage of ownership | [2] | 1.12% |  | 1.12% |
Acquisition cost | [6] | ₩ 2,900 |  | ₩ 2,900 |
Book value |  |  |  |  |
Beginning balance |  | 2,459 |  | 2,597 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (119) |  | (138) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,340 |  | 2,459 |
Share in net assets |  | 2,474 |  | 2,590 |
Total assets |  | 3,399,058 |  | 1,891,662 |
Total liabilities |  | 3,177,210 |  | 1,659,415 |
Net assets |  | 221,848 |  | 232,247 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (134) |  | (131) |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (10,276) |  | ₩ (7,323) |
Gangneung Eco Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 1.61% |  | 1.61% |
Effective percentage of ownership | [2] | 1.61% |  | 1.61% |
Acquisition cost | [6] | ₩ 2,900 |  | ₩ 2,900 |
Book value |  |  |  |  |
Beginning balance |  | 2,495 |  | 2,583 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (65) |  | (88) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,430 |  | 2,495 |
Share in net assets |  | 2,553 |  | 2,615 |
Total assets |  | 1,362,692 |  | 813,938 |
Total liabilities |  | 1,204,202 |  | 651,621 |
Net assets |  | 158,490 |  | 162,317 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (123) |  | (120) |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (3,830) |  | ₩ (4,194) |
Shin Pyeongtaek Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 72,000 |  | ₩ 72,000 |
Book value |  |  |  |  |
Beginning balance |  | 67,600 |  | 34,903 |
Acquisition |  |  |  | 28,080 |
Disposal |  |  |  | 0 |
Dividends received |  |  |  | 0 |
Share of income (loss) |  | (827) |  | (2,946) |
Other comprehensive income (loss) |  | 198 |  | 6,673 |
Others (book value) |  | (15) |  | 890 |
Ending balance |  | 66,956 |  | 67,600 |
Share in net assets |  | 69,712 |  | 65,007 |
Total assets |  | 981,387 |  | 674,100 |
Total liabilities |  | 807,107 |  | 511,582 |
Net assets |  | 174,280 |  | 162,518 |
Investment differential |  | 12,800 |  | 12,800 |
Intercompany transaction |  | (15,556) |  | (10,207) |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 119,162 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ 11,847 |  | ₩ 682 |
Heang Bok Do Si Photovoltaic Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 28.00% |  | 28.00% |
Effective percentage of ownership | [2] | 28.00% |  | 28.00% |
Acquisition cost |  | ₩ 194 |  | ₩ 194 |
Book value |  |  |  |  |
Beginning balance |  | 202 |  | 187 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 13 |  | 15 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 215 |  | 202 |
Share in net assets |  | 213 |  | 200 |
Total assets |  | 2,483 |  | 2,630 |
Total liabilities |  | 1,722 |  | 1,915 |
Net assets |  | 761 |  | 715 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 2 |  | 2 |
Sales of Associates |  | 454 |  | 455 |
Profit (loss) for the period of Associates |  | ₩ 47 |  | ₩ 52 |
Dongducheon Dream Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation | [16] | Power generation | [17]
Location |  | KOREA | [16] | KOREA | [17]
Percentage of ownership |  | 33.61% | [16] | 33.61% | [17]
Effective percentage of ownership | [2] | 34.01% |  | 34.01% |
Acquisition cost |  | ₩ 148,105 | [16] | ₩ 148,105 | [17]
Book value |  |  |  |  |
Beginning balance |  | 76,386 |  | 53,233 |
Acquisition |  | 0 |  | 36,971 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 441 |  | (13,824) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (280) |  | 6 |
Ending balance |  | 76,547 |  | 76,386 |
Share in net assets |  | 91,060 |  | 91,260 |
Total assets |  | 1,474,224 |  | 1,512,510 |
Total liabilities |  | 1,206,478 |  | 1,244,178 |
Net assets |  | 267,746 |  | 268,332 |
Investment differential |  | 1,757 |  | 1,757 |
Intercompany transaction |  | (3,688) |  | (4,049) |
Others (consolidated FS) |  | (12,582) |  | (12,582) |
Sales of Associates |  | 689,414 |  | 828,430 |
Profit (loss) for the period of Associates |  | ₩ 2,849 |  | ₩ (22,864) |
Jinbhuvish Power Generation Pvt. Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | INDIA |  | INDIA |
Percentage of ownership | [6] | 5.16% |  | 5.16% |
Effective percentage of ownership | [2] | 5.16% |  | 5.16% |
Acquisition cost | [6] | ₩ 9,000 |  | ₩ 9,000 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | 2,625 |  | 2,586 |
Total assets |  | 64,111 |  | 63,163 |
Total liabilities |  | 13,240 |  | 13,044 |
Net assets |  | 50,871 |  | 50,119 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (2,625) |  | (2,586) |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ 0 |  | ₩ 0 |
SE Green Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 47.76% |  | 47.76% |
Effective percentage of ownership | [2] | 47.76% |  | 47.76% |
Acquisition cost |  | ₩ 0 |  | ₩ 3,821 |
Book value |  |  |  |  |
Beginning balance |  | 3,366 |  | 3,476 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | (110) |
Other comprehensive income (loss) |  | (75) |  | 0 |
Others (book value) |  | (3,291) |  | 0 |
Ending balance |  | 0 |  | 3,366 |
Share in net assets |  | 0 |  | 3,366 |
Total assets |  |  |  | 7,048 |
Total liabilities |  |  |  | 0 |
Net assets |  | 0 |  | 7,048 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | ₩ 0 |  | 0 |
Sales of Associates |  |  |  | 0 |
Profit (loss) for the period of Associates |  |  |  | ₩ (230) |
Daejung Offshore Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [18] | Power generation |  |  |
Location | [18] | KOREA |  |  |
Percentage of ownership | [18] | 49.90% |  |  |
Effective percentage of ownership | [2] | 49.90% |  |  |
Acquisition cost | [18] | ₩ 5,190 |  |  |
Book value |  |  |  |  |
Others (book value) |  | 2,361 |  |  |
Ending balance |  | 2,361 |  |  |
Share in net assets |  | 2,361 |  |  |
Total assets |  | 6,181 |  |  |
Total liabilities |  | 1,450 |  |  |
Net assets |  | 4,731 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ (617) |  |  |
Significant restrictions on its abilities |  | Before the commencement of the operation, shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
GS Donghae Electric Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [18] | Power generation |  |  |
Location | [18] | KOREA |  |  |
Percentage of ownership | [18] | 34.00% |  |  |
Effective percentage of ownership | [2] | 34.00% |  |  |
Acquisition cost | [18] | ₩ 204,000 |  |  |
Book value |  |  |  |  |
Others (book value) |  | 255,983 |  |  |
Ending balance |  | 255,983 |  |  |
Share in net assets |  | 255,983 |  |  |
Total assets |  | 2,301,774 |  |  |
Total liabilities |  | 1,548,883 |  |  |
Net assets |  | 752,891 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 688,055 |  |  |
Profit (loss) for the period of Associates |  | ₩ 75,842 |  |  |
Daegu Photovoltaic Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 1,230 |  | ₩ 1,230 |
Book value |  |  |  |  |
Beginning balance |  | 2,002 |  | 1,718 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (327) |  | (128) |
Share of income (loss) |  | 385 |  | 412 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,060 |  | 2,002 |
Share in net assets |  | 2,060 |  | 2,002 |
Total assets |  | 15,486 |  | 16,828 |
Total liabilities |  | 8,385 |  | 9,923 |
Net assets |  | 7,101 |  | 6,905 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 3,639 |  | 3,695 |
Profit (loss) for the period of Associates |  | ₩ 1,442 |  | ₩ 1,645 |
Jeongam Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 0 |  | ₩ 5,580 |
Book value |  |  |  |  |
Beginning balance |  | 4,589 |  | 3,763 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (152) |  | 826 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (4,437) |  | 0 |
Ending balance |  | 0 |  | 4,589 |
Share in net assets |  |  |  | 4,589 |
Total assets |  |  |  | 93,444 |
Total liabilities |  |  |  | 81,971 |
Net assets |  |  |  | 11,473 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 1,559 |
Profit (loss) for the period of Associates |  | ₩ 0 |  | ₩ 2,154 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | In the case where non-controlling shareholders decide to dispose of their shares in Jeongam Wind Power Co., Ltd. after the construction of the power plant has been completed, the Group is obligated to acquire those shares at fair value. |  | In case non-controlling shareholders decide to dispose of their shares in Jeongam Wind Power Co., Ltd. after the construction of the power plant has been completed, the Company is obligated to acquire those shares at fair value |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied and reimbursement to the lender can be restricted depending on the priority of the loans. Also, Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Korea Power Engineering Service Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Construction and service |  | Construction and service |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 0 |  | ₩ 290 |
Book value |  |  |  |  |
Beginning balance |  | 4,333 |  | 3,659 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | (218) |
Share of income (loss) |  | 508 |  | 929 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (4,841) |  | (37) |
Ending balance |  | ₩ 0 |  | 4,333 |
Share in net assets |  |  |  | 4,333 |
Total assets |  |  |  | 18,609 |
Total liabilities |  |  |  | 3,666 |
Net assets |  |  |  | 14,943 |
Investment differential |  |  |  | 0 |
Intercompany transaction |  |  |  | 0 |
Others (consolidated FS) |  |  |  | 0 |
Sales of Associates |  |  |  | 20,809 |
Profit (loss) for the period of Associates |  |  |  | ₩ 3,207 |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without consent of the board of directors is obtained. |  |  |
Busan Green Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 5,243 |  | ₩ 5,243 |
Book value |  |  |  |  |
Beginning balance |  | 12,537 |  | 7,363 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (1,884) |  | 5,037 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (16) |  | 137 |
Ending balance |  | 10,637 |  | 12,537 |
Share in net assets |  | 10,637 |  | 12,537 |
Total assets |  | 173,537 |  | 195,227 |
Total liabilities |  | 136,857 |  | 151,995 |
Net assets |  | 36,680 |  | 43,232 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 52,256 |  | 77,011 |
Profit (loss) for the period of Associates |  | ₩ (6,496) |  | ₩ 17,370 |
Gunsan Bio Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 18.87% |  | 18.87% |
Effective percentage of ownership | [2] | 18.87% |  | 18.87% |
Acquisition cost | [6] | ₩ 1,000 |  | ₩ 1,000 |
Book value |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (3,292) |  | (2,202) |
Total assets |  | 10,614 |  | 8,990 |
Total liabilities |  | 28,062 |  | 20,660 |
Net assets |  | (17,448) |  | (11,670) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 3,292 |  | 2,202 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | (5,777) |  | (4,420) |
Unrecognized equity interest |  | 1,090 |  | 916 |
Accumulated unrecognized equity interest |  | ₩ 3,292 |  | ₩ 2,202 |
Korea Electric Vehicle Charging Service |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Electric vehicle charge service |  | Electric vehicle charge service |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 28.00% |  | 28.00% |
Effective percentage of ownership | [2] | 28.00% |  | 28.00% |
Acquisition cost |  | ₩ 2,800 |  | ₩ 2,800 |
Book value |  |  |  |  |
Beginning balance |  | 1,593 |  | 1,749 |
Acquisition |  | 0 |  | 196 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (515) |  | (352) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (15) |  | 0 |
Ending balance |  | 1,063 |  | 1,593 |
Share in net assets |  | 1,063 |  | 1,593 |
Total assets |  | 12,810 |  | 15,019 |
Total liabilities |  | 9,013 |  | 9,328 |
Net assets |  | 3,797 |  | 5,691 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 8,428 |  | 8,615 |
Profit (loss) for the period of Associates |  | ₩ (1,841) |  | ₩ (1,056) |
Ulleungdo Natural Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Renewable power generation |  | Renewable power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.85% |  | 29.85% |
Effective percentage of ownership | [2] | 29.85% |  | 29.85% |
Acquisition cost |  | ₩ 0 |  | ₩ 8,000 |
Book value |  |  |  |  |
Beginning balance |  | 4,628 |  | 6,370 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (1) |  | (1,749) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (4,627) |  | 7 |
Ending balance |  | 0 |  | 4,628 |
Share in net assets |  | 0 |  | 4,629 |
Total assets |  |  |  | 17,134 |
Total liabilities |  |  |  | 1,625 |
Net assets |  | 0 |  | 15,509 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | ₩ 0 |  | (1) |
Sales of Associates |  |  |  | 0 |
Profit (loss) for the period of Associates |  |  |  | ₩ (5,855) |
Korea Nuclear Partners Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Electric material agency |  | Electric material agency |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 290 |  | ₩ 290 |
Book value |  |  |  |  |
Beginning balance |  | 175 |  | 383 |
Acquisition |  | 0 | [19] | 0 |
Disposal |  | 0 | [19] | 0 |
Dividends received |  | 0 | [19] | 0 |
Share of income (loss) |  | (79) | [19] | (208) |
Other comprehensive income (loss) |  | 0 | [19] | 0 |
Others (book value) |  | (96) | [19] | 0 |
Ending balance |  | 0 | [19] | 175 |
Share in net assets |  | 160 |  | 175 |
Total assets |  | 928 |  | 615 |
Total liabilities |  | 375 |  | 12 |
Net assets |  | 553 |  | 603 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (160) |  | 0 |
Sales of Associates |  | 1,441 |  | 80 |
Profit (loss) for the period of Associates |  | ₩ (50) |  | ₩ (707) |
Tamra Offshore Wind Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 27.00% |  | 27.00% |
Effective percentage of ownership | [2] | 27.00% |  | 27.00% |
Acquisition cost |  | ₩ 0 |  | ₩ 8,910 |
Book value |  |  |  |  |
Beginning balance |  | 10,401 |  | 8,560 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 1,841 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (10,401) |  | 0 |
Ending balance |  | 0 |  | 10,401 |
Share in net assets |  | 0 |  | 10,401 |
Total assets |  |  |  | 170,238 |
Total liabilities |  |  |  | 131,717 |
Net assets |  | 0 |  | 38,521 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | ₩ 0 |  | 0 |
Sales of Associates |  |  |  | 21,701 |
Profit (loss) for the period of Associates |  |  |  | ₩ 4,077 |
Korea Electric Power Corporation Fund |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [20] | Developing electric enterprises |  | Developing electric enterprises |
Location | [20] | KOREA |  | KOREA |
Percentage of ownership | [20] | 98.09% |  | 98.09% |
Effective percentage of ownership | [2] | 98.09% |  | 98.09% |
Acquisition cost | [20] | ₩ 51,500 |  | ₩ 51,500 |
Book value |  |  |  |  |
Beginning balance |  | 47,189 |  | 47,974 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (6,931) |  | (505) |
Other comprehensive income (loss) |  | 868 |  | (280) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 41,126 |  | 47,189 |
Share in net assets |  | 41,122 |  | 47,185 |
Total assets |  | 42,162 |  | 48,280 |
Total liabilities |  | 239 |  | 176 |
Net assets |  | 41,923 |  | 48,104 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 4 |  | 4 |
Sales of Associates |  | 127 |  | 1,315 |
Profit (loss) for the period of Associates |  | ₩ (5,430) |  | ₩ (649) |
Energy Infra Asset Management Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [8] | Asset management |  | Asset management |
Location | [8] | KOREA |  | KOREA |
Percentage of ownership | [8] | 9.90% |  | 9.90% |
Effective percentage of ownership | [2] | 9.90% |  | 9.90% |
Acquisition cost | [8] | ₩ 297 |  | ₩ 297 |
Book value |  |  |  |  |
Beginning balance |  | 665 |  | 476 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 126 |  | 189 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 791 |  | 665 |
Share in net assets |  | 791 |  | 665 |
Total assets |  | 8,712 |  | 7,225 |
Total liabilities |  | 721 |  | 507 |
Net assets |  | 7,991 |  | 6,718 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 5,118 |  | 5,757 |
Profit (loss) for the period of Associates |  | ₩ 1,415 |  | ₩ 2,193 |
Daegu clean Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Renewable power generation |  | Renewable power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 28.00% |  | 28.00% |
Effective percentage of ownership | [2] | 28.00% |  | 28.00% |
Acquisition cost |  | ₩ 140 |  | ₩ 140 |
Book value |  |  |  |  |
Beginning balance |  | 17 |  | 11 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (4) |  | 6 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 13 |  | 17 |
Share in net assets |  | 13 |  | 17 |
Total assets |  | 371 |  | 389 |
Total liabilities |  | 323 |  | 328 |
Net assets |  | 48 |  | 61 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (14) |  | ₩ (190) |
YaksuESS Co., Ltd |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Installing ESS related equipment |  | Installing ESS related equipment |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 210 |  | ₩ 210 |
Book value |  |  |  |  |
Beginning balance |  | 460 |  | 194 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 56 |  | 266 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 516 |  | 460 |
Share in net assets |  | 514 |  | 458 |
Total assets |  | 7,325 |  | 7,525 |
Total liabilities |  | 5,551 |  | 5,944 |
Net assets |  | 1,774 |  | 1,581 |
Investment differential |  | 2 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 2 |
Sales of Associates |  | 1,191 |  | 2,094 |
Profit (loss) for the period of Associates |  | ₩ 363 |  | ₩ 1,259 |
Nepal Water & Energy Development Company Private Limited |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [21] | Construction and operation of utility plant |  | Construction and operation of utility plant |
Location | [21] | NEPAL |  | NEPAL |
Percentage of ownership | [21] | 57.76% |  | 57.67% |
Effective percentage of ownership | [2] | 58.59% |  | 57.67% |
Acquisition cost | [21] | ₩ 35,571 |  | ₩ 33,577 |
Book value |  |  |  |  |
Beginning balance |  | 30,961 |  | 30,498 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (854) |  | (770) |
Other comprehensive income (loss) |  | 1,038 |  | 1,233 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 31,145 |  | 30,961 |
Share in net assets |  | 30,173 |  | 29,529 |
Total assets |  | 78,309 |  | 55,453 |
Total liabilities |  | 26,783 |  | 4,249 |
Net assets |  | 51,526 |  | 51,204 |
Investment differential |  | 972 |  | 972 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 460 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (1,380) |  | ₩ (984) |
Gwangyang Green Energy Co., Ltd |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 20.00% |  | 20.00% |
Effective percentage of ownership | [2] | 20.00% |  | 20.00% |
Acquisition cost |  | ₩ 2,000 |  | ₩ 2,000 |
Book value |  |  |  |  |
Beginning balance |  | 1,206 |  | 1,772 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (258) |  | (566) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 948 |  | 1,206 |
Share in net assets |  | 930 |  | 1,188 |
Total assets |  | 28,816 |  | 29,234 |
Total liabilities |  | 24,164 |  | 23,293 |
Net assets |  | 4,652 |  | 5,941 |
Investment differential |  | 18 |  | 18 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 0 |  | 0 |
Profit (loss) for the period of Associates |  | ₩ (1,007) |  | ₩ (2,831) |
PND solar., Ltd |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 1,250 |  | ₩ 1,250 |
Book value |  |  |  |  |
Beginning balance |  | 1,020 |  | 1,250 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 124 |  | (230) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 1,144 |  | 1,020 |
Share in net assets |  | 990 |  | 866 |
Total assets |  | 40,941 |  | 42,283 |
Total liabilities |  | 37,526 |  | 39,297 |
Net assets |  | 3,415 |  | 2,986 |
Investment differential |  | 154 |  | 154 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 6,908 |  | 1,094 |
Profit (loss) for the period of Associates |  | ₩ 1,665 |  | ₩ (795) |
Hyundai Eco Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 19.00% |  | 19.00% |
Effective percentage of ownership | [2] | 19.00% |  | 19.00% |
Acquisition cost | [6] | ₩ 3,610 |  | ₩ 3,610 |
Book value |  |  |  |  |
Beginning balance |  | 3,388 |  | 0 |
Acquisition |  | 0 |  | 3,610 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 393 |  | (222) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,781 |  | 3,388 |
Share in net assets |  | 3,567 |  | 3,174 |
Total assets |  | 209,395 |  | 165,555 |
Total liabilities |  | 190,622 |  | 148,852 |
Net assets |  | 18,773 |  | 16,703 |
Investment differential |  | 214 |  | 214 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 13,343 |  | 0 |
Profit (loss) for the period of Associates |  | 1,306 |  | (2,193) |
Unrecognized equity interest |  | 12,890 |  | 25,841 |
Accumulated unrecognized equity interest |  | ₩ 38,731 |  | ₩ 25,841 |
YeongGwang Yaksu Wind Electric. Co., Ltd |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [6] | Power generation |  | Power generation |
Location | [6] | KOREA |  | KOREA |
Percentage of ownership | [6] | 9.63% |  | 9.63% |
Effective percentage of ownership | [2] | 9.63% |  | 9.63% |
Acquisition cost | [6] | ₩ 533 |  | ₩ 533 |
Book value |  |  |  |  |
Beginning balance |  | 533 |  | 0 |
Acquisition |  | 0 |  | 533 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (147) |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 386 |  | 533 |
Share in net assets |  | 86 |  | 233 |
Total assets |  | 46,488 |  | 46,027 |
Total liabilities |  | 45,594 |  | 43,606 |
Net assets |  | 894 |  | 2,421 |
Investment differential |  | 300 |  | 300 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of Associates |  | 6,511 |  | 7,604 |
Profit (loss) for the period of Associates |  | ₩ (1,510) |  | ₩ (493) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | As of December 31, 2019, YeongGwang Yaksu Wind Electric. Co., Ltd., an associate of the Group, which engages in the wind power generating business in YeongGwang, Jeonra-namdo, and entered into a project financing agreement with a limit of W46 billion with Hanhwa Life Insurance Co., Ltd. and others. The Group set the shares of YeongGwang Yaksu Wind Electric. Co., Ltd. as a collateral for the the project financing to the lenders. |  | As of December 31, 2018, YeongGwang Yaksu Wind Electric. Co., Ltd, an associate of the Company, which engages in the wind power generating business, entered into a project financing agreement with a limit of W46.8 billion with Hanwha Life Insurance Co., Ltd. and others. |
Green Energy Electricity Generation Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 29.00% |  |  |
Effective percentage of ownership | [2] | 29.00% |  |  |
Acquisition cost |  | ₩ 1,189 |  |  |
Book value |  |  |  |  |
Acquisition |  | 1,189 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (1,026) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 163 |  |  |
Share in net assets |  | (616) |  |  |
Total assets |  | 33,937 |  |  |
Total liabilities |  | 36,060 |  |  |
Net assets |  | (2,123) |  |  |
Investment differential |  | 779 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ (5,923) |  |  |
Korea Energy Solutions Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | R & D |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 20.00% |  |  |
Effective percentage of ownership | [2] | 20.00% |  |  |
Acquisition cost |  | ₩ 300 |  |  |
Book value |  |  |  |  |
Acquisition |  | 300 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (41) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 259 |  |  |
Share in net assets |  | 253 |  |  |
Total assets |  | 1,285 |  |  |
Total liabilities |  | 18 |  |  |
Net assets |  | 1,267 |  |  |
Investment differential |  | 6 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 134 |  |  |
Profit (loss) for the period of Associates |  | ₩ (233) |  |  |
ITR Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | R & D |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 20.00% |  |  |
Effective percentage of ownership | [2] | 20.00% |  |  |
Acquisition cost |  | ₩ 50 |  |  |
Book value |  |  |  |  |
Acquisition |  | 50 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (17) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 33 |  |  |
Share in net assets |  | 32 |  |  |
Total assets |  | 376 |  |  |
Total liabilities |  | 214 |  |  |
Net assets |  | 162 |  |  |
Investment differential |  | 1 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 167 |  |  |
Profit (loss) for the period of Associates |  | ₩ (88) |  |  |
Structure test network Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Technical testing and consulting |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 20.00% |  |  |
Effective percentage of ownership | [2] | 20.00% |  |  |
Acquisition cost |  | ₩ 25 |  |  |
Book value |  |  |  |  |
Acquisition |  | 25 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (4) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 21 |  |  |
Share in net assets |  | (32) |  |  |
Total assets |  | 89 |  |  |
Total liabilities |  | 249 |  |  |
Net assets |  | (160) |  |  |
Investment differential |  | 53 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 76 |  |  |
Profit (loss) for the period of Associates |  | ₩ (72) |  |  |
Namjeongsusang Solar Power Operation Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [22] | Power generation |  |  |
Location | [22] | KOREA |  |  |
Percentage of ownership | [22] | 15.00% |  |  |
Effective percentage of ownership | [2] | 15.00% |  |  |
Acquisition cost | [22] | ₩ 969 |  |  |
Book value |  |  |  |  |
Acquisition |  | 969 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (157) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 812 |  |  |
Share in net assets |  | 793 |  |  |
Total assets |  | 34,595 |  |  |
Total liabilities |  | 29,310 |  |  |
Net assets |  | 5,285 |  |  |
Investment differential |  | 19 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ (1,149) |  |  |
Indeck Niles Development, LLC |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | USA |  |  |
Percentage of ownership |  | 50.00% |  |  |
Effective percentage of ownership | [2] | 50.00% |  |  |
Acquisition cost |  | ₩ 0 |  |  |
Book value |  |  |  |  |
Acquisition |  | 0 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 0 |  |  |
Share in net assets |  | 24,646 |  |  |
Total assets |  | 49,465 |  |  |
Total liabilities |  | 174 |  |  |
Net assets |  | 49,291 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | (24,646) |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ (25,430) |  |  |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Indeck Niles Asset Management, LLC |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [23] | Power generation |  |  |
Location | [23] | USA |  |  |
Percentage of ownership | [23] | 33.33% |  |  |
Effective percentage of ownership | [2] | 33.33% |  |  |
Acquisition cost | [23] | ₩ 0 |  |  |
Book value |  |  |  |  |
Acquisition |  | 0 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | (245) |  |  |
Share of income (loss) |  | 333 |  |  |
Other comprehensive income (loss) |  | (1) |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 87 |  |  |
Share in net assets |  | 87 |  |  |
Total assets |  | 271 |  |  |
Total liabilities |  | 9 |  |  |
Net assets |  | 262 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 1,513 |  |  |
Profit (loss) for the period of Associates |  | ₩ 753 |  |  |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1 |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 49.00% |  |  |
Effective percentage of ownership | [2] | 49.00% |  |  |
Acquisition cost |  | ₩ 7,105 |  |  |
Book value |  |  |  |  |
Acquisition |  | 7,105 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 21 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 7,126 |  |  |
Share in net assets |  | 7,126 |  |  |
Total assets |  | 14,559 |  |  |
Total liabilities |  | 15 |  |  |
Net assets |  | 14,544 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 59 |  |  |
Profit (loss) for the period of Associates |  | ₩ 44 |  |  |
Suwon New Power Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 39.90% |  |  |
Effective percentage of ownership | [2] | 33.10% |  |  |
Acquisition cost |  | ₩ 798 |  |  |
Book value |  |  |  |  |
Acquisition |  | 798 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 798 |  |  |
Share in net assets |  | 662 |  |  |
Total assets |  | 2,000 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 2,000 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 136 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ 0 |  |  |
KPGE Inc. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities |  | Power generation materials business |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 29.00% |  |  |
Effective percentage of ownership | [2] | 29.00% |  |  |
Acquisition cost |  | ₩ 287 |  |  |
Book value |  |  |  |  |
Acquisition |  | 287 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 287 |  |  |
Share in net assets |  | 285 |  |  |
Total assets |  | 984 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 984 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 2 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ (6) |  |  |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |  |  |
Gwangbaek Solar Power Investment Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [24] | Power generation |  |  |
Location | [24] | KOREA |  |  |
Percentage of ownership | [24] | 19.00% |  |  |
Effective percentage of ownership | [2] | 19.00% |  |  |
Acquisition cost | [24] | ₩ 2,054 |  |  |
Book value |  |  |  |  |
Acquisition |  | 2,054 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 2,054 |  |  |
Share in net assets |  | 1,976 |  |  |
Total assets |  | 193,464 |  |  |
Total liabilities |  | 183,063 |  |  |
Net assets |  | 10,401 |  |  |
Investment differential |  | 78 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 7,635 |  |  |
Profit (loss) for the period of Associates |  | ₩ (355) |  |  |
Goduk Clean Energy Co., Ltd. |  |  |  |  |
Disclosure of associates [Line Items] |  |  |  |  |
Key operation activities | [25] | Fuel cell generation |  |  |
Location | [25] | KOREA |  |  |
Percentage of ownership | [25] | 61.00% |  |  |
Effective percentage of ownership | [2] | 61.00% |  |  |
Acquisition cost | [25] | ₩ 1,830 |  |  |
Book value |  |  |  |  |
Acquisition |  | 1,830 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 1,830 |  |  |
Share in net assets |  | 1,830 |  |  |
Total assets |  | 3,000 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 3,000 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of Associates |  | 0 |  |  |
Profit (loss) for the period of Associates |  | ₩ 0 |  |  |
[1] | The effective percentage of ownership is 21.57% considering treasury stocks.
[2] | The percentage of ownership shown above is after considering the treasury stocks and others.
[3] | An indicator of impairment has been identified for the Company's investment in Korea Gas Corporation ("KOGAS") for the years ended December 31, 2018 and 2019 as management determined that the carrying amount of the investment in KOGAS at KRW1,701,848 million and KRW1,693,967 million respectively were significantly higher than its fair value. Accordingly, management has assessed the recoverable amount of the investment by estimating the Company's share of the present value of the estimated future cash flows expected to be generated by KOGAS. The carrying amount of KOGAS as at December 31, 2018 and 2019 are supported by the recoverable amount determination and as such, no impairment has been recognized for the years ended December 31, 2018 and 2019. The recoverable amount estimate is most sensitive to assumptions regarding long-term revenue forecasts as well as the discount rate: - Revenue forecasts: price and volume of gas sold are based on the long-term natural gas supply and demand programs approved by the Ministry of Trade, Industry & Energy. - Discount rate: the discount rate is derived using the weighted average cost of capital methodology adjusted for any risks that are not reflected in the underlying cash flows. A real post-tax discount rate of 4.80% and 4.70% was applied to post-tax cash flows respectively as at December 31, 2018 and 2019. Changes in circumstances may affect the assumptions used to determine recoverable amount and could result in an impairment of KOGAS at future reporting dates.
[4] | The profit recognized for the years ended December 31, 2018 and 2019 are reduced by the associate entity's net income attributable to non-controlling interests.
[5] | The profit recognized for the years ended December 31, 2018 and 2019 are reduced by of the associate entity's net income attributable to non-controlling interests.
[6] | The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint directors to the board of directors of the entity, and by strict decision criteria of the Company's financial and operating policy of the board of directors.
[7] | The effective percentage of ownership is 100%. However, the Government regulates the Company's ability to make operating and financial decisions over the entity, as the Government requires maintaining arms-length transactions between KPX and the Company's other subsidiaries. The Company can exercise significant influence by its right to nominate directors to the board of directors of the entity.
[8] | The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint a director to the board of directors of the entity.
[9] | As of December 31, 2018, 15.64% of ownership of Hyundai Energy Co., Ltd. is held by NH Power ll Co., Ltd. and NH Bank. According to the shareholders' agreement reached on March 2011, not only does the Company have a call option to acquire the investment in Hyundai Energy Co., Ltd. from NH Power ll Co., Ltd. and NH Bank with a certain rate of return, NH Power ll Co., Ltd. and NH Bank also have put options to dispose of their investment to the Company. In connection with this agreement, the Company applied the equity method on the investment in Hyundai Energy Co., Ltd. with 46.30% of ownership.
[10] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW820 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2018.
[11] | The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint one out of four members of the steering committee of the entity. Moreover, the Company has significant financial transactions, which can affect its influence on the entity.
[12] | As of reporting date, the annual reporting period of all associates and joint ventures ends on December 31, except for Pioneer Gas Power Limited whose reporting period ends on March 31.
[13] | The effective percentage of ownership is less than 20% but the Company can exercise significant influence by virtue of its contractual right to appoint a director to the board of directors of the entity and the fact that the dominant portion of the investee's sales transactions is generated from the Company.
[14] | The Company's effective percentage of ownership excluding the redeemable convertible preferred stock is 25.54%.
[15] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW7,087 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2018.
[16] | The effective percentage of ownership is 34.01% considering the conversion of redeemable convertible preferred stock into ordinary stock.
[17] | The effective percentage of ownership is 34.01% considering redeemable convertible preferred stock.
[18] | Daejung Offshore Wind Power Co., Ltd. and GS Donghae Electric Power Co., Ltd. are reclassified from joint ventures to associates, and Jeongam Wind Power Co., Ltd. and Korea Power Engineering Service Co., Ltd. are reclassified from associates to joint ventures during the year ended December 31, 2019.
[19] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW96 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2019.
[20] | The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. For this reason, the entity is classified as an associate.
[21] | The effective percentage of ownership is more than 50% but the Company does not hold control over the entity according to the shareholders' agreement. For this reason, the entity is classified as an associate.
[22] | The effective percentage of ownership is less than 20%. However, the Company considers the major decision-making body to be the general decision of the board of directors, and the general decision of the board of directors can be passed only by two directors. For this reason, the entities are classified as an associate.
[23] | Although the investment amount is not paid as of December 31, 2019, the Company has an investment agreement on 50% of the interests. the Company can exercise significant influence by virtue of its contractual right to appoint a director to the board of directors of the entity.
[24] | The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint a director to the board of directors of the entity.
[25] | The effective percentage of ownership is 61%. However, it seems the Company doesn't have power on the Goduk Clean Energy Co., Ltd. due to its proportion to make decisions, which is less than 50%. The Company can exercise significant influence on the entity by participating in the board of directors and others. Therefore, the entity is classified as an associate.

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