XML 162 R146.htm IDEA: XBRL DOCUMENT v3.21.1
Investments in Associates (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of associates [Line Items]    
Acquisition cost ₩ 2,481,761 ₩ 2,539,956
Book value    
Beginning balance 4,251,802 4,064,820
Acquisition 96,255 17,659
Disposal (207) 0
Dividends received (98,175) (136,012)
Share of income (loss) 59,092 37,418
Other comprehensive income (loss) (48,911) 39,199
Others (book value) (9,069) 228,718
Ending balance ₩ 4,250,787 ₩ 4,251,802
Korea Gas Corporation    
Disclosure of associates [Line Items]    
Key operation activities Importing and wholesaling LNG Importing and wholesaling LNG
Location KOREA KOREA
Percentage of ownership 20.47% [1] 20.47% [2]
Effective percentage of ownership [3] 22.02% 21.57%
Acquisition cost ₩ 94,500 ₩ 94,500
Book value    
Beginning balance 1,693,967 1,701,848
Acquisition 0 0
Disposal 0 0
Dividends received (7,182) (25,704)
Share of income (loss) (14,104) 8,511
Other comprehensive income (loss) (25,023) 12,687
Others (book value) (333) (3,375)
Ending balance 1,647,325 1,693,967
The fair value of associates 584,010 715,365
Share in net assets 1,703,281 1,757,205
Total assets 35,909,775 39,311,855
Total liabilities 28,174,619 31,165,334
Net assets 7,735,156 8,146,521
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (55,956) (63,238)
Sales of Associates 20,833,722 24,982,640
Profit (loss) for the period of Associates ₩ (172,060) [4] ₩ 38,764 [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 [3] 29.00% 29.00%
Acquisition cost ₩ 4,727 ₩ 4,727
Book value    
Beginning balance 25,393 21,838
Acquisition 0 0
Disposal 0 0
Dividends received (2,146) (1,598)
Share of income (loss) 3,806 5,002
Other comprehensive income (loss) 0 0
Others (book value) (1,423) 151
Ending balance 25,630 25,393
The fair value of associates 45,048 33,089
Share in net assets 25,630 25,393
Total assets 164,015 186,434
Total liabilities 75,636 98,872
Net assets 88,379 87,562
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 297,962 306,026
Profit (loss) for the period of Associates ₩ 16,284 ₩ 17,467
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 [3] 21.43% 21.43%
Acquisition cost ₩ 59,000 ₩ 59,000
Book value    
Beginning balance 39,747 40,338
Acquisition 0 0
Disposal 0 0
Dividends received (90) (180)
Share of income (loss) 1,086 (449)
Other comprehensive income (loss) (6) 5
Others (book value) (188) 33
Ending balance 40,549 39,747
The fair value of associates 27,000 18,450
Share in net assets 40,549 39,747
Total assets 295,151 281,699
Total liabilities 105,923 96,211
Net assets 189,228 185,488
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 126,730 127,782
Profit (loss) for the period of Associates ₩ 7,095 ₩ (1,230)
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 [3] 43.90% 43.90%
Acquisition cost ₩ 0 ₩ 48,353
Book value    
Beginning balance 1,411 3,465
Acquisition 990 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 2,518 (2,054)
Other comprehensive income (loss) 0 0
Others (book value) (4,919) 0
Ending balance 0 1,411
Share in net assets 0 (112)
Total assets 0 383,034
Total liabilities 0 383,288
Net assets 0 (254)
Investment differential 0 2,584
Intercompany transaction 0 (1,061)
Others (consolidated FS) 0 0
Sales of Associates 0 68,626
Profit (loss) for the period of Associates ₩ 0 ₩ (2,567)
Gangwon Wind Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 15.00% 15.00%
Effective percentage of ownership [3] 15.00% 15.00%
Acquisition cost ₩ 5,725 ₩ 5,725
Book value    
Beginning balance 12,327 13,220
Acquisition 0 0
Disposal 0 0
Dividends received (1,988) (2,272)
Share of income (loss) 1,104 1,379
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 11,443 12,327
Share in net assets 11,394 12,278
Total assets 77,297 83,528
Total liabilities 1,336 1,674
Net assets 75,961 81,854
Investment differential 49 49
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 23,350 24,116
Profit (loss) for the period of Associates ₩ 7,472 ₩ 9,380
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 [3] 29.00% 29.00%
Acquisition cost ₩ 88,885 ₩ 88,885
Book value    
Beginning balance 124,253 127,160
Acquisition 0 0
Disposal 0 0
Dividends received (8,889) (8,889)
Share of income (loss) 17,410 5,982
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 132,774 124,253
Share in net assets 132,774 124,253
Total assets 874,574 1,086,738
Total liabilities 416,732 658,279
Net assets 457,842 428,459
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 390,442 507,653
Profit (loss) for the period of Associates ₩ 55,591 ₩ 26,222
Shareholders' agreements that may cause future economic resource or cash outflows As of December 31, 2020, the Company has call option against the financial investors (Korea Development Bank and others) and also has an obligation to sell its shares in Hyundai Green Power Co., Ltd. when claimed by the financial investors at certain period of time in the future. Also, at certain period of time in the future, the Company 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 Group. 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.
Korea Power Exchange    
Disclosure of associates [Line Items]    
Key operation activities Management of power market and others Management of power market and others
Location KOREA KOREA
Percentage of ownership 100.00% [7] 100.00% [8]
Effective percentage of ownership [3] 100.00% 100.00%
Acquisition cost ₩ 127,839 ₩ 127,839
Book value    
Beginning balance 258,899 251,802
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 1,860 10,907
Other comprehensive income (loss) 1 0
Others (book value) 8,362 (3,810)
Ending balance 269,122 258,899
Share in net assets 269,122 260,757
Total assets 337,577 315,683
Total liabilities 68,455 54,926
Net assets 269,122 260,757
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 (1,858)
Sales of Associates 104,698 107,034
Profit (loss) for the period of Associates ₩ 979 ₩ 8,268
AMEC Partners Korea Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Resources development Resources development
Location KOREA KOREA
Percentage of ownership 19.00% 19.00%
Effective percentage of ownership [3] 19.00% 19.00%
Acquisition cost ₩ 0 ₩ 0
Book value    
Beginning balance 0 209
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 0 0
Other comprehensive income (loss) 0 3
Others (book value) 0 (212)
Ending balance 0 0
Share in net assets 0 0
Total assets 0  
Total liabilities 0  
Net assets 0  
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 ₩ 0
DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership 30.66% 30.66% [9]
Effective percentage of ownership [3] 46.30% 46.30%
Acquisition cost ₩ 0 ₩ 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 0 (39,217)
Total assets 0 465,238
Total liabilities 0 549,940
Net assets 0 (84,702)
Investment differential 0 0
Intercompany transaction 0 (954)
Others (consolidated FS) 0 40,171
Sales of Associates 0 91,842
Profit (loss) for the period of Associates 0 (27,882)
Unrecognized equity interest (14,035) 12,890
Accumulated unrecognized equity interest ₩ 24,696 ₩ 38,731
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.
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 0.00% 36.10%
Effective percentage of ownership [3] 0.00% 36.10%
Acquisition cost ₩ 0 ₩ 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 [10] 0
Share in net assets 0 554
Total assets 0 1,838
Total liabilities 0 304
Net assets 0 1,534
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 (554)
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ 0 ₩ (97)
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 [3] 25.00% 25.00%
Acquisition cost ₩ 3,810 ₩ 3,810
Book value    
Beginning balance 7,039 5,665
Acquisition 0 0
Disposal 0 0
Dividends received (175) 0
Share of income (loss) (472) 1,374
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 6,392 7,039
Share in net assets 6,392 7,039
Total assets 28,048 36,182
Total liabilities 2,480 8,027
Net assets 25,568 28,155
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 4,364 6,177
Profit (loss) for the period of Associates ₩ (561) ₩ 5,494
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 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. 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.
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.
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 [3] 25.00% 25.00%
Acquisition cost ₩ 3,420 ₩ 3,420
Book value    
Beginning balance 2,553 2,569
Acquisition 0 0
Disposal 0 0
Dividends received 0  
Share of income (loss) 534 (16)
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 3,087 2,553
Share in net assets 3,087 2,553
Total assets 44,434 35,061
Total liabilities 32,085 24,847
Net assets 12,349 10,214
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 5,023 349
Profit (loss) for the period of Associates ₩ 1,368 ₩ (61)
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 the consent of the stakeholders. 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 [3] 25.00% 25.00%
Acquisition cost ₩ 3,875 ₩ 3,875
Book value    
Beginning balance 5,877 5,419
Acquisition 0 0
Disposal 0  
Dividends received (813)  
Share of income (loss) (37) 458
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 5,027 5,877
Share in net assets 5,027 5,877
Total assets 72,713 79,756
Total liabilities 52,606 56,248
Net assets 20,107 23,508
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 8,387 10,713
Profit (loss) for the period of Associates ₩ (154) ₩ 2,010
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 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. The Company is under agreement of O&M with the entity. Pursuant to the agreement, the Company guarantees a certain level of utilization rate and it is obligated to pay the penalty in the event of suspension in power generating. 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.
Significant restrictions on its abilities Principals and interests 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 consent of the stakeholders. 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.
Daeryun Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 9.34% 9.34%
Effective percentage of ownership [3] 9.34% 9.34%
Acquisition cost ₩ 40,854 ₩ 40,854
Book value    
Beginning balance 26,247 26,099
Acquisition 0 0
Disposal 0 0
Dividends received 0  
Share of income (loss) 104 173
Other comprehensive income (loss) 0  
Others (book value) 2 (25)
Ending balance 26,353 26,247
Share in net assets 27,173 27,066
Total assets 789,277 802,546
Total liabilities 498,346 512,757
Net assets 290,931 289,789
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (820) (819)
Sales of Associates 126,343 163,129
Profit (loss) for the period of Associates ₩ 1,941 ₩ 1,836
Shareholders' agreements that may cause future economic resource or cash outflows The Company reserves the right to participate in the transfer of shares in Daeryun Power Co., Ltd. on the same terms as Daeryun E&S Co., Ltd., if Daeryun E&S Co., Ltd. wishes to transfer its shares in Daeryun Power Co., Ltd.  
Significant restrictions on its abilities Principals and interests 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. Shares cannot be wholly or partially transferred without prior consent of the majority of major stakeholders. 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.
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 [3] 30.00% 30.00%
Acquisition cost ₩ 3,801 ₩ 3,801
Book value    
Beginning balance 8,520 8,086
Acquisition 0 0
Disposal 0 0
Dividends received (750) 0
Share of income (loss) 97 434
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 7,867 8,520
Share in net assets 7,867 8,520
Total assets 27,515 29,875
Total liabilities 1,292 1,476
Net assets 26,223 28,399
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 4,777 6,076
Profit (loss) for the period of Associates ₩ 656 ₩ 1,447
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 [3] 27.00% 27.00%
Acquisition cost ₩ 1,296 ₩ 1,296
Book value    
Beginning balance 2,382 2,337
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 54 45
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 2,436 2,382
Share in net assets 2,436 2,382
Total assets 18,240 20,465
Total liabilities 9,219 11,641
Net assets 9,021 8,824
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 3,564 3,377
Profit (loss) for the period of Associates ₩ 728 ₩ 278
Significant restrictions on its abilities Principals and interests on subordinated loans or dividends to shareholders cannot be paid without written consent of financial institutions. Also, shares cannot be wholly or partially transferred without the consent of other shareholders. 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.
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 [3] 38.00% 38.00%
Acquisition cost ₩ 20,635 ₩ 20,635
Book value    
Beginning balance 63,583 57,558
Acquisition 0 0
Disposal 0 0
Dividends received (10,764) (14,229)
Share of income (loss) 5,491 5,929
Other comprehensive income (loss) 11,649 14,286
Others (book value) (47) 39
Ending balance 69,912 63,583
The fair value of associates 139,698 117,230
Share in net assets 90,348 86,672
Total assets 255,462 250,544
Total liabilities 17,705 22,459
Net assets 237,757 228,085
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (20,436) (23,089)
Sales of Associates 47,091 63,218
Profit (loss) for the period of Associates ₩ 39,677 ₩ 39,876
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 [3] 34.00% 34.00%
Acquisition cost ₩ 413,153 ₩ 413,153
Book value    
Beginning balance 670,896 647,010
Acquisition 0 0
Disposal 0 0
Dividends received (11,620) (11,468)
Share of income (loss) 15,965 26,300
Other comprehensive income (loss) 4,468 9,209
Others (book value) (1) (155)
Ending balance 679,708 670,896
Share in net assets 679,709 670,896
Total assets 7,427,157 6,758,957
Total liabilities 5,428,013 4,785,740
Net assets 1,999,144 1,973,217
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (1) 0
Sales of Associates 1,955,707 2,024,730
Profit (loss) for the period of Associates ₩ 64,077 ₩ 95,435
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 Company 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 Group 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 [3] 27.50% 27.50%
Acquisition cost ₩ 40,365 ₩ 40,365
Book value    
Beginning balance 123,425 108,628
Acquisition 0 0
Disposal 0 0
Dividends received (9,782)  
Share of income (loss) 11,330 11,079
Other comprehensive income (loss) 434 (65)
Others (book value) (7,596) 3,783
Ending balance 117,811 123,425
Share in net assets 117,811 123,425
Total assets 730,020 852,457
Total liabilities 301,615 403,639
Net assets 428,405 448,818
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 246,014 277,370
Profit (loss) for the period of Associates ₩ 40,676 ₩ 39,581
KNOC Nigerian East Oil Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Resources development Resources development
Location NIGERIA NIGERIA
Percentage of ownership 14.63% [11] 14.63% [12]
Effective percentage of ownership [3] 14.63% 14.63%
Acquisition cost ₩ 12 ₩ 12
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (22) (27)
Other comprehensive income (loss) 671 (380)
Others (book value) (649) 407
Ending balance 0 0
Share in net assets (10,464) (11,113)
Total assets 22,215 58,402
Total liabilities 93,736 134,361
Net assets (71,521) (75,959)
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 10,464 11,113
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (142) ₩ (182)
KNOC Nigerian West Oil Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Resources development Resources development
Location NIGERIA NIGERIA
Percentage of ownership 14.63% [11] 14.63% [12]
Effective percentage of ownership [3] 14.63% 14.63%
Acquisition cost ₩ 12 ₩ 12
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (22) (29)
Other comprehensive income (loss) 617 (349)
Others (book value) (595) 378
Ending balance 0 0
Share in net assets (9,618) (10,213)
Total assets 23,999 54,275
Total liabilities 89,739 124,086
Net assets (65,740) (69,811)
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 9,618 10,213
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (142) ₩ (180)
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 [3] 46.00% 46.00%
Acquisition cost ₩ 21,292 ₩ 21,292
Book value    
Beginning balance 29,355 31,097
Acquisition 0 0
Disposal 0 0
Dividends received (1,303) 0
Share of income (loss) 3,245 (2,867)
Other comprehensive income (loss) (1,639) 2
Others (book value) (1,793) 1,123
Ending balance 27,865 29,355
Share in net assets 27,865 29,355
Total assets 199,841 222,266
Total liabilities 139,264 158,451
Net assets 60,577 63,815
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 20,265 18,165
Profit (loss) for the period of Associates ₩ 7,372 ₩ (2,315)
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 [3] 20.00% 20.00%
Acquisition cost ₩ 615,860 ₩ 615,860
Book value    
Beginning balance 445,141 511,646
Acquisition 0 0
Disposal 0 0
Dividends received (15,720) (71,100)
Share of income (loss) 17,139 6,181
Other comprehensive income (loss) (21,256) (1,586)
Others (book value) (70) 0
Ending balance 425,234 445,141
The fair value of associates 798,510 880,860
Share in net assets 149,949 136,012
Total assets 1,544,875 1,302,637
Total liabilities 795,131 622,576
Net assets 749,744 680,061
Investment differential 351,662 385,508
Intercompany transaction 0 0
Others (consolidated FS) (76,377) (76,379)
Sales of Associates 1,646,390 1,707,387
Profit (loss) for the period of Associates ₩ 219,406 ₩ 252,855
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 [3] 49.00% 49.00%
Acquisition cost ₩ 132,300 ₩ 132,300
Book value    
Beginning balance 115,784 114,566
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (5,429) 1,218
Other comprehensive income (loss) 0 0
Others (book value) (63) 0
Ending balance 110,292 115,784
Share in net assets 111,802 117,403
Total assets 782,561 805,622
Total liabilities 554,393 566,025
Net assets 228,168 239,597
Investment differential 0 0
Intercompany transaction (1,510) (1,619)
Others (consolidated FS) 0 0
Sales of Associates 421,519 576,554
Profit (loss) for the period of Associates ₩ (10,805) ₩ 2,319
Pioneer Gas Power Limited    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location INDIA INDIA
Percentage of ownership 38.50% 38.50%
Effective percentage of ownership [3] 38.50% 38.50%
Acquisition cost ₩ 49,831 ₩ 49,831
Book value    
Beginning balance 0 20,395
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 0 (20,784)
Other comprehensive income (loss) 0 389
Others (book value) 0 0
Ending balance 0 0
Share in net assets (38,284) (22,459)
Total assets 260,344 309,059
Total liabilities 359,790 367,399
Net assets (99,446) (58,340)
Investment differential 22,278 22,278
Intercompany transaction 0 0
Others (consolidated FS) 16,006 181
Sales of Associates 0 0
Profit (loss) for the period of Associates (44,568) (54,501)
Unrecognized equity interest 15,824 114
Accumulated unrecognized equity interest ₩ 15,938 ₩ 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 [3] 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 (175) (186)
Total assets 556 592
Total liabilities 993 1,056
Net assets (437) (464)
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 175 186
Sales of Associates 0 0
Profit (loss) for the period of Associates 0 0
Unrecognized equity interest (10) 6
Accumulated unrecognized equity interest ₩ 175 ₩ 185
Xe-Pian Xe-Namnoy Power Co., Ltd.    
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 [3] 25.00% 25.00%
Acquisition cost ₩ 87,426 ₩ 87,426
Book value    
Beginning balance 72,935 77,165
Acquisition 0 3,052
Disposal 0 0
Dividends received 0 0
Share of income (loss) (2,896) (10,210)
Other comprehensive income (loss) (5,469) 2,928
Others (book value) 0 0
Ending balance 64,570 72,935
Share in net assets 65,665 74,026
Total assets 1,138,994 1,194,125
Total liabilities 876,336 898,023
Net assets 262,658 296,102
Investment differential 305 305
Intercompany transaction (1,110) (1,106)
Others (consolidated FS) (290) (290)
Sales of Associates 140,069 6,731
Profit (loss) for the period of Associates ₩ (11,318) ₩ (40,437)
Hadong Mineral Fiber Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Recycling fly ashes Recycling fly ashes
Location KOREA KOREA
Percentage of ownership [6] 8.33% 8.33%
Effective percentage of ownership [3] 8.33% 8.33%
Acquisition cost ₩ 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
Accumulated unrecognized equity interest ₩ 2 ₩ 2
Green Biomass Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership 7.85% 7.85% [13]
Effective percentage of ownership [3] 7.85% 7.85%
Acquisition cost ₩ 0 ₩ 714
Book value    
Beginning balance 108 115
Acquisition 0 0
Disposal (108) 0
Dividends received 0 0
Share of income (loss) 0 (73)
Other comprehensive income (loss) 0 0
Others (book value) 0 66
Ending balance 0 108
Share in net assets 0 108
Total assets 0 3,866
Total liabilities 0 2,487
Net assets 0 1,379
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 0 17
Profit (loss) for the period of Associates ₩ 0 ₩ (925)
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 [3] 29.00% 29.00%
Acquisition cost ₩ 2,978 ₩ 2,978
Book value    
Beginning balance 1,438 365
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 459 1,031
Other comprehensive income (loss) (117) 42
Others (book value) 0 0
Ending balance 1,780 1,438
Share in net assets 1,780 1,438
Total assets 23,061 26,109
Total liabilities 16,923 21,150
Net assets 6,138 4,959
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 7,946 11,196
Profit (loss) for the period of Associates ₩ 2,523 3,396
Unrecognized equity interest   0
Accumulated unrecognized equity interest   ₩ 0
Samcheok Eco Materials Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Recycling fly ashes Recycling fly ashes
Location KOREA KOREA
Percentage of ownership [14] 2.35% 2.35%
Effective percentage of ownership [3] 25.54% 25.54%
Acquisition cost ₩ 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 5,983 5,980
Total assets 24,024 26,625
Total liabilities 598 3,209
Net assets 23,426 23,416
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (5,983) (5,980)
Sales of Associates 10,483 10,876
Profit (loss) for the period of Associates 23 1,946
Unrecognized equity interest (3) (497)
Accumulated unrecognized equity interest ₩ 785 ₩ 788
Shareholders' agreements that may cause future economic resource or cash outflows For Samcheok Eco Materials Co., Ltd., ordinary shareholders have the right to buy the shares of preferred shareholders if preferred shareholders intend to sell their preferred stock until December 26, 2023, and ordinary shareholders shall guarantee the investment principle of preferred shareholders.  
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 the consent of the stakeholders. 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 [3] 29.00% 29.00%
Acquisition cost ₩ 1,740 ₩ 1,740
Book value    
Beginning balance 6,610 8,015
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (2,413) (1,395)
Other comprehensive income (loss) 0 0
Others (book value) 0 (10)
Ending balance 4,197 6,610
Share in net assets 4,197 6,610
Total assets 116,929 137,370
Total liabilities 102,457 114,578
Net assets 14,472 22,792
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 27,486 36,435
Profit (loss) for the period of Associates ₩ (8,303) ₩ (4,810)
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 [3] 41.67% 41.67%
Acquisition cost ₩ 0 ₩ 29,200
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (9,789) 0
Other comprehensive income (loss) 0 0
Others (book value) 9,789 0
Ending balance 0 0
Share in net assets 0 (9,281)
Total assets 0 77,070
Total liabilities 0 99,345
Net assets 0 (22,275)
Investment differential 0 2
Intercompany transaction 0 0
Others (consolidated FS) 0 9,279
Sales of Associates 0 6,572
Profit (loss) for the period of Associates 0 (31,577)
Unrecognized equity interest (7,003) 9,281
Accumulated unrecognized equity interest ₩ 2,278 ₩ 9,281
Significant restrictions on its abilities Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, Shares cannot be wholly or partially transferred without the consent of the stakeholders. Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained.
Goseong Green Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 1.12% 1.12%
Effective percentage of ownership [3] 1.12% 1.12%
Acquisition cost ₩ 2,900 ₩ 2,900
Book value    
Beginning balance 2,340 2,459
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (154) (119)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,186 2,340
Share in net assets 2,324 2,474
Total assets 4,559,480 3,399,058
Total liabilities 4,351,119 3,177,210
Net assets 208,361 221,848
Investment differential 0 0
Intercompany transaction (138) (134)
Others (consolidated FS) 0 0
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (12,280) ₩ (10,276)
Gangneung Eco Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 1.61% 1.61%
Effective percentage of ownership [3] 1.61% 1.61%
Acquisition cost ₩ 2,900 ₩ 2,900
Book value    
Beginning balance 2,430 2,495
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (62) (65)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,368 2,430
Share in net assets 2,496 2,553
Total assets 2,630,752 1,362,692
Total liabilities 2,475,848 1,204,202
Net assets 154,904 158,490
Investment differential 0 0
Intercompany transaction (128) (123)
Others (consolidated FS) 0 0
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (3,623) ₩ (3,830)
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 [3] 40.00% 40.00%
Acquisition cost ₩ 72,000 ₩ 72,000
Book value    
Beginning balance 66,956 67,600
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of income (loss) 11,877 (827)
Other comprehensive income (loss) (3,604) 198
Others (book value) (5,638) (15)
Ending balance 69,591 66,956
Share in net assets 82,512 69,712
Total assets 1,020,650 981,387
Total liabilities 814,369 807,107
Net assets 206,281 174,280
Investment differential 3,559 12,800
Intercompany transaction (16,480) (15,556)
Others (consolidated FS) 0 0
Sales of Associates 520,468 119,162
Profit (loss) for the period of Associates ₩ 32,002 ₩ 11,847
Haeng 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 [3] 28.00% 28.00%
Acquisition cost ₩ 194 ₩ 194
Book value    
Beginning balance 215 202
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (5) 13
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 210 215
Share in net assets 208 213
Total assets 2,001 2,483
Total liabilities 1,258 1,722
Net assets 743 761
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 2 2
Sales of Associates 387 454
Profit (loss) for the period of Associates ₩ (11) ₩ 47
Dongducheon Dream Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [15] 33.61% 33.61%
Effective percentage of ownership [3] 34.01% 34.01%
Acquisition cost ₩ 148,105 ₩ 148,105
Book value    
Beginning balance 76,547 76,386
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 4,095 441
Other comprehensive income (loss) 0 0
Others (book value) (5) (280)
Ending balance 80,637 76,547
Share in net assets 94,791 91,060
Total assets 1,374,640 1,474,224
Total liabilities 1,095,926 1,206,478
Net assets 278,714 267,746
Investment differential 1,757 1,757
Intercompany transaction (3,329) (3,688)
Others (consolidated FS) (12,582) (12,582)
Sales of Associates 524,890 689,414
Profit (loss) for the period of Associates ₩ 10,982 ₩ 2,849
Jinbhuvish Power Generation Pvt. Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location INDIA INDIA
Percentage of ownership [6] 5.16% 5.16%
Effective percentage of ownership [3] 5.16% 5.16%
Acquisition cost ₩ 9,000 [16] ₩ 9,000 [17]
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 2,403 2,625
Total assets 58,699 64,111
Total liabilities 12,122 13,240
Net assets 46,577 50,871
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (2,403) (2,625)
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 84.80% 84.80%
Effective percentage of ownership [3] 84.80% 84.80%
Acquisition cost ₩ 0 ₩ 0
Book value    
Beginning balance 0 3,366
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 0 0
Other comprehensive income (loss) 0 (75)
Others (book value) 0 (3,291)
Ending balance 0 0
Share in net assets 0 0
Total assets 0 0
Total liabilities 0 0
Net assets 0 0
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 ₩ 0
Daejung Offshore Wind Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership 46.59% 49.90% [18]
Effective percentage of ownership [3] 46.59% 49.90%
Acquisition cost ₩ 5,190 ₩ 5,190
Book value    
Beginning balance 2,361  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of income (loss) (411)  
Other comprehensive income (loss) 0  
Others (book value) 215 2,361
Ending balance 2,165 2,361
Share in net assets 2,165 2,361
Total assets 6,281 6,181
Total liabilities 1,634 1,450
Net assets 4,647 4,731
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 ₩ (810) ₩ (617)
Significant restrictions on its abilities Before the commencement of the operation, shares cannot be wholly or partially transferred without the consent of the stakeholders. 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 Power generation Power generation
Location KOREA KOREA
Percentage of ownership 34.00% 34.00% [18]
Effective percentage of ownership [3] 34.00% 34.00%
Acquisition cost ₩ 204,000 ₩ 204,000
Book value    
Beginning balance 255,983 0
Acquisition 0 0
Disposal 0 0
Dividends received (25,796) 0
Share of income (loss) 14,265 0
Other comprehensive income (loss) 0 0
Others (book value) (26) 255,983
Ending balance 244,426 255,983
Share in net assets 244,426 255,983
Total assets 2,174,835 2,301,774
Total liabilities 1,455,935 1,548,883
Net assets 718,900 752,891
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 685,579 688,055
Profit (loss) for the period of Associates ₩ 41,955 ₩ 75,842
Significant restrictions on its abilities Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.  
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 [3] 29.00% 29.00%
Acquisition cost ₩ 1,230 ₩ 1,230
Book value    
Beginning balance 2,060 2,002
Acquisition 0 0
Disposal 0 0
Dividends received (325) (327)
Share of income (loss) 331 385
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,066 2,060
Share in net assets 2,066 2,060
Total assets 13,843 15,486
Total liabilities 6,718 8,385
Net assets 7,125 7,101
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 3,343 3,639
Profit (loss) for the period of Associates ₩ 1,149 ₩ 1,442
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 [3] 29.00% 29.00%
Acquisition cost ₩ 5,243 ₩ 5,243
Book value    
Beginning balance 10,637 12,537
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (1,862) (1,884)
Other comprehensive income (loss) 0 0
Others (book value) 3 (16)
Ending balance 8,778 10,637
Share in net assets 8,777 10,637
Total assets 170,261 173,537
Total liabilities 139,995 136,857
Net assets 30,266 36,680
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 1 0
Sales of Associates 40,241 52,256
Profit (loss) for the period of Associates ₩ (6,422) ₩ (6,496)
Gunsan Bio Energy Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 18.87% 18.87%
Effective percentage of ownership [3] 18.87% 18.87%
Acquisition cost ₩ 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 (3,582) (3,292)
Total assets 9,340 10,614
Total liabilities 28,322 28,062
Net assets (18,982) (17,448)
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 3,582 3,292
Sales of Associates 0 0
Profit (loss) for the period of Associates (1,501) (5,777)
Unrecognized equity interest 290 1,090
Accumulated unrecognized equity interest ₩ 3,582 ₩ 3,292
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 [3] 28.00% 28.00%
Acquisition cost ₩ 2,800 ₩ 2,800
Book value    
Beginning balance 1,063 1,593
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (491) (515)
Other comprehensive income (loss) 0 0
Others (book value) 4 (15)
Ending balance 576 1,063
Share in net assets 576 1,063
Total assets 8,173 12,810
Total liabilities 6,116 9,013
Net assets 2,057 3,797
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 10,807 8,428
Profit (loss) for the period of Associates ₩ (1,756) ₩ (1,841)
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 [3] 29.85% 29.85%
Acquisition cost ₩ 0 ₩ 0
Book value    
Beginning balance 0 4,628
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 0 (1)
Other comprehensive income (loss) 0 0
Others (book value) 0 (4,627)
Ending balance 0 0
Share in net assets 0 0
Net assets 0 0
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) ₩ 0 ₩ 0
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 28.98% 29.00%
Effective percentage of ownership [3] 28.98% 29.00%
Acquisition cost ₩ 537 ₩ 290
Book value    
Beginning balance 0 [19] 175
Acquisition 247 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (43) (79)
Other comprehensive income (loss) (4) 0
Others (book value) 0 (96)
Ending balance 200 0 [19]
Share in net assets 361 160
Total assets 1,350 928
Total liabilities 105 375
Net assets 1,245 553
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) (161) (160)
Sales of Associates 1,062 1,441
Profit (loss) for the period of Associates ₩ (150) ₩ (50)
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 [3] 27.00% 27.00%
Acquisition cost ₩ 0 ₩ 0
Book value    
Beginning balance 0 10,401
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 (10,401)
Ending balance 0 0
Share in net assets 0 0
Net assets 0 0
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) ₩ 0 ₩ 0
Korea Electric Power Corporation Fund    
Disclosure of associates [Line Items]    
Key operation activities Developing electric enterprises Developing electric enterprises
Location KOREA KOREA
Percentage of ownership [20] 98.09% 98.09%
Effective percentage of ownership [3] 98.09% 98.09%
Acquisition cost ₩ 51,500 ₩ 51,500
Book value    
Beginning balance 41,126 47,189
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (908) (6,931)
Other comprehensive income (loss) 1,708 868
Others (book value) 0 0
Ending balance 41,926 41,126
Share in net assets 41,923 41,122
Total assets 42,988 42,162
Total liabilities 249 239
Net assets 42,739 41,923
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 3 4
Sales of Associates 82 127
Profit (loss) for the period of Associates ₩ (730) ₩ (5,430)
Energy Infra Asset Management Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Asset management Asset management
Location KOREA KOREA
Percentage of ownership [6] 9.90% 9.90%
Effective percentage of ownership [3] 9.90% 9.90%
Acquisition cost ₩ 297 ₩ 297
Book value    
Beginning balance 791 665
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 147 126
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 938 791
Share in net assets 938 791
Total assets 10,424 8,712
Total liabilities 946 721
Net assets 9,478 7,991
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 5,130 5,118
Profit (loss) for the period of Associates ₩ 1,488 ₩ 1,415
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 [3] 28.00% 28.00%
Acquisition cost ₩ 140 ₩ 140
Book value    
Beginning balance 13 17
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (1) (4)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 12 13
Share in net assets 12 13
Total assets 368 371
Total liabilities 324 323
Net assets 44 48
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 ₩ (1) ₩ (14)
Yaksu ESS 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 [3] 29.00% 29.00%
Acquisition cost ₩ 210 ₩ 210
Book value    
Beginning balance 516 460
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (62) 56
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 454 516
Share in net assets 453 514
Total assets 6,584 7,325
Total liabilities 5,022 5,551
Net assets 1,562 1,774
Investment differential 1 2
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 217 1,191
Profit (loss) for the period of Associates ₩ (212) ₩ 363
Nepal Water & Energy Development Company Private Limited    
Disclosure of associates [Line Items]    
Key operation activities Construction and operation of utility plant Construction and operation of utility plant
Location NEPAL NEPAL
Percentage of ownership [21] 60.35% 57.76%
Effective percentage of ownership [3] 58.59% 58.59%
Acquisition cost ₩ 50,268 ₩ 35,571
Book value    
Beginning balance 31,145 30,961
Acquisition 14,697 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (1,699) (854)
Other comprehensive income (loss) (1,466) 1,038
Others (book value) 0 0
Ending balance 42,677 31,145
Share in net assets 39,975 30,173
Total assets 109,321 78,309
Total liabilities 41,093 26,783
Net assets 68,228 51,526
Investment differential 971 972
Intercompany transaction 0 0
Others (consolidated FS) 1,731 0
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (444) ₩ (1,380)
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 [3] 20.00% 20.00%
Acquisition cost ₩ 2,000 ₩ 2,000
Book value    
Beginning balance 948 1,206
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (22) (258)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 926 948
Share in net assets 908 930
Total assets 28,634 28,816
Total liabilities 24,095 24,164
Net assets 4,539 4,652
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 ₩ (113) ₩ (1,007)
PND solar 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 [3] 29.00% 29.00%
Acquisition cost ₩ 1,250 ₩ 1,250
Book value    
Beginning balance 1,144 1,020
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 5 124
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 1,149 1,144
Share in net assets 995 990
Total assets 38,997 40,941
Total liabilities 35,566 37,526
Net assets 3,431 3,415
Investment differential 154 154
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 5,129 6,908
Profit (loss) for the period of Associates ₩ (121) ₩ 1,665
Hyundai Ecoenergy Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 19.00% 19.00%
Effective percentage of ownership [3] 19.00% 19.00%
Acquisition cost ₩ 3,610 ₩ 3,610
Book value    
Beginning balance 3,781 3,388
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) 469 393
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 4,250 3,781
Share in net assets 4,036 3,567
Total assets 195,040 209,395
Total liabilities 173,800 190,622
Net assets 21,240 18,773
Investment differential 214 214
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 24,166 13,343
Profit (loss) for the period of Associates 4,280 1,306
Unrecognized equity interest (14,035) 12,890
Accumulated unrecognized equity interest ₩ 24,696 ₩ 38,731
YeongGwang Yaksu Wind Electric Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership [6] 9.63% 9.63%
Effective percentage of ownership [3] 9.63% 9.63%
Acquisition cost ₩ 533 ₩ 533
Book value    
Beginning balance 386 533
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (74) (147)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 312 386
Share in net assets 12 86
Total assets 43,039 46,488
Total liabilities 42,915 45,594
Net assets 124 894
Investment differential 300 300
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 5,802 6,511
Profit (loss) for the period of Associates ₩ (637) ₩ (1,510)
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.
Green Energy Electricity Generation 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 [3] 29.00% 29.00%
Acquisition cost ₩ 1,189 ₩ 1,189
Book value    
Beginning balance 163  
Acquisition 0 1,189
Disposal 0 0
Dividends received 0 0
Share of income (loss) (138) (1,026)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 25 163
Share in net assets (754) (616)
Total assets 53,934 33,937
Total liabilities 56,533 36,060
Net assets (2,599) (2,123)
Investment differential 779 779
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (920) ₩ (5,923)
Korea Energy Solution Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D R & D
Location KOREA KOREA
Percentage of ownership 20.00% 20.00%
Effective percentage of ownership [3] 20.00% 20.00%
Acquisition cost ₩ 300 ₩ 300
Book value    
Beginning balance 259  
Acquisition 0 300
Disposal 0 0
Dividends received 0 0
Share of income (loss) (62) (41)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 197 259
Share in net assets 197 253
Total assets 1,009 1,285
Total liabilities 25 18
Net assets 984 1,267
Investment differential 0 6
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 78 134
Profit (loss) for the period of Associates ₩ (280) ₩ (233)
ITR Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D R & D
Location KOREA KOREA
Percentage of ownership 20.00% 20.00%
Effective percentage of ownership [3] 20.00% 20.00%
Acquisition cost ₩ 50 ₩ 50
Book value    
Beginning balance 33  
Acquisition 0 50
Disposal 0 0
Dividends received 0 0
Share of income (loss) 7 (17)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 40 33
Share in net assets 40 32
Total assets 418 376
Total liabilities 220 214
Net assets 198 162
Investment differential 1 1
Intercompany transaction 0 0
Others (consolidated FS) (1) 0
Sales of Associates 153 167
Profit (loss) for the period of Associates ₩ (66) ₩ (88)
Structure test network Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Technical testing and consulting Technical testing and consulting
Location KOREA KOREA
Percentage of ownership 20.00% 20.00%
Effective percentage of ownership [3] 20.00% 20.00%
Acquisition cost ₩ 25 ₩ 25
Book value    
Beginning balance 21  
Acquisition 0 25
Disposal 0 0
Dividends received 0 0
Share of income (loss) 6 (4)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 27 21
Share in net assets (27) (32)
Total assets 101 89
Total liabilities 234 249
Net assets (133) (160)
Investment differential 54 53
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 99 76
Profit (loss) for the period of Associates ₩ 27 ₩ (72)
Namjeongsusang Solar Power Operation Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership 15.00% [22] 15.00% [23]
Effective percentage of ownership [3] 15.00% 15.00%
Acquisition cost ₩ 969 ₩ 969
Book value    
Beginning balance 812  
Acquisition 0 969
Disposal 0 0
Dividends received 0 0
Share of income (loss) (709) (157)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 103 812
Share in net assets 83 793
Total assets 63,041 34,595
Total liabilities 62,488 29,310
Net assets 553 5,285
Investment differential 20 19
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 1,128 0
Profit (loss) for the period of Associates ₩ (4,655) ₩ (1,149)
Indeck Niles Development, LLC    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location USA USA
Percentage of ownership 24.08% [24] 50.00% [25]
Effective percentage of ownership [3] 24.08% 50.00%
Acquisition cost ₩ 45,562 ₩ 0
Book value    
Beginning balance 0  
Acquisition 45,562 0
Disposal 0 0
Dividends received 0 0
Share of income (loss) (13,344) 0
Other comprehensive income (loss) (9,846) 0
Others (book value) (1,745) 0
Ending balance 20,627 0
Share in net assets 8,017 24,646
Total assets 772,124 49,465
Total liabilities 738,826 174
Net assets 33,298 49,291
Investment differential 12,610 0
Intercompany transaction 0 0
Others (consolidated FS) 0 (24,646)
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ (29,392) ₩ (25,430)
Significant restrictions on its abilities Shares cannot be wholly or partially transferred without the consent of the stakeholders. 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 Power generation Power generation
Location USA USA
Percentage of ownership 33.33% 33.33%
Effective percentage of ownership [3] 33.33% 33.33%
Acquisition cost ₩ 0 ₩ 0
Book value    
Beginning balance 87  
Acquisition 0 0
Disposal 0 0
Dividends received (539) (245)
Share of income (loss) 559 333
Other comprehensive income (loss) 0 (1)
Others (book value) (6) 0
Ending balance 101 87
Share in net assets 101 87
Total assets 314 271
Total liabilities 11 9
Net assets 303 262
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 2,272 1,513
Profit (loss) for the period of Associates ₩ 1,139 ₩ 753
Significant restrictions on its abilities Shares cannot be wholly or partially transferred without the consent of the stakeholders. 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 Holding company
Location KOREA KOREA
Percentage of ownership 49.00% 49.00%
Effective percentage of ownership [3] 49.00% 49.00%
Acquisition cost ₩ 7,300 ₩ 7,105
Book value    
Beginning balance 7,126  
Acquisition 294 7,105
Disposal (99) 0
Dividends received (291) 0
Share of income (loss) 296 21
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 7,326 7,126
Share in net assets 7,326 7,126
Total assets 15,157 14,559
Total liabilities 206 15
Net assets 14,951 14,544
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 634 59
Profit (loss) for the period of Associates ₩ 603 ₩ 44
Suwon New Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation Power generation
Location KOREA KOREA
Percentage of ownership 39.90% 39.90%
Effective percentage of ownership [3] 33.11% 33.10%
Acquisition cost ₩ 798 ₩ 798
Book value    
Beginning balance 798  
Acquisition 0 798
Disposal 0 0
Dividends received 0 0
Share of income (loss) 256 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 1,054 798
Share in net assets 651 662
Total assets 1,974 2,000
Total liabilities 8 0
Net assets 1,966 2,000
Investment differential 0 0
Intercompany transaction 267 0
Others (consolidated FS) 136 136
Sales of Associates 0 0
Profit (loss) for the period of Associates ₩ 0 ₩ 0
KPGE Inc.    
Disclosure of associates [Line Items]    
Key operation activities Power generation materials business Power generation materials business
Location KOREA KOREA
Percentage of ownership 29.00% 29.00%
Effective percentage of ownership [3] 29.00% 29.00%
Acquisition cost ₩ 287 ₩ 287
Book value    
Beginning balance 287  
Acquisition 0 287
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 287 287
Share in net assets 287 285
Total assets 1,021 984
Total liabilities 32 0
Net assets 989 984
Investment differential 0 0
Intercompany transaction 0 0
Others (consolidated FS) 0 2
Sales of Associates 354 0
Profit (loss) for the period of Associates ₩ 5 ₩ (6)
Significant restrictions on its abilities Shares cannot be wholly or partially transferred without the consent of the stakeholders. 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 Power generation Power generation
Location KOREA KOREA
Percentage of ownership 44.00% 19.00% [26]
Effective percentage of ownership [3] 44.00% 19.00%
Acquisition cost ₩ 4,757 ₩ 2,054
Book value    
Beginning balance 2,054  
Acquisition 2,703 2,054
Disposal 0 0
Dividends received 0 0
Share of income (loss) (75) 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 4,682 2,054
Share in net assets 4,367 1,976
Total assets 339,223 193,464
Total liabilities 329,298 183,063
Net assets 9,925 10,401
Investment differential 315 78
Intercompany transaction 0 0
Others (consolidated FS) 0 0
Sales of Associates 13,192 7,635
Profit (loss) for the period of Associates ₩ (329) ₩ (355)
Goduk Clean Energy Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Fuel cell generation Fuel cell generation
Location KOREA KOREA
Percentage of ownership 61.00% [27] 61.00% [28]
Effective percentage of ownership [3] 61.00% 61.00%
Acquisition cost ₩ 1,830 ₩ 1,830
Book value    
Beginning balance 1,830  
Acquisition 0 1,830
Disposal 0 0
Dividends received 0 0
Share of income (loss) (843) 0
Other comprehensive income (loss) (27) 0
Others (book value) 0 0
Ending balance 960 1,830
Share in net assets 960 1,830
Total assets 1,639 3,000
Total liabilities 65 0
Net assets 1,574 3,000
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 ₩ (1,382) ₩ 0
Energy Innovation Fund I    
Disclosure of associates [Line Items]    
Key operation activities Holding company  
Location KOREA  
Percentage of ownership 71.91%  
Effective percentage of ownership [3] 71.91%  
Acquisition cost ₩ 0  
Book value    
Acquisition 4,000  
Disposal 0  
Dividends received (2)  
Share of income (loss) (159)  
Other comprehensive income (loss) 0  
Others (book value) (3,839)  
Ending balance 0  
Share in net assets 0  
Total assets 0  
Total liabilities 0  
Net assets 0  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ 0  
SureDataLab Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D  
Location KOREA  
Percentage of ownership 23.95%  
Effective percentage of ownership [3] 23.95%  
Acquisition cost ₩ 126  
Book value    
Acquisition 126  
Disposal 0  
Dividends received 0  
Share of income (loss) (41)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 85  
Share in net assets 85  
Total assets 400  
Total liabilities 47  
Net assets 353  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 303  
Profit (loss) for the period of Associates ₩ (108)  
SEP Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D  
Location KOREA  
Percentage of ownership 21.26%  
Effective percentage of ownership [3] 21.26%  
Acquisition cost ₩ 27  
Book value    
Acquisition 27  
Disposal 0  
Dividends received 0  
Share of income (loss) (13)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 14  
Share in net assets 14  
Total assets 164  
Total liabilities 100  
Net assets 64  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ (63)  
Hankook Electric Power Information Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D  
Location KOREA  
Percentage of ownership 25.25%  
Effective percentage of ownership [3] 25.25%  
Acquisition cost ₩ 38  
Book value    
Acquisition 38  
Disposal 0  
Dividends received 0  
Share of income (loss) 101  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 139  
Share in net assets 139  
Total assets 1,163  
Total liabilities 613  
Net assets 550  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 1,208  
Profit (loss) for the period of Associates ₩ 390  
Tronix Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D  
Location KOREA  
Percentage of ownership 20.00%  
Effective percentage of ownership [3] 20.00%  
Acquisition cost ₩ 75  
Book value    
Acquisition 75  
Disposal 0  
Dividends received 0  
Share of income (loss) 44  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 119  
Share in net assets 119  
Total assets 942  
Total liabilities 349  
Net assets 593  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 2,030  
Profit (loss) for the period of Associates ₩ (6)  
O2&B Global Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities R & D  
Location KOREA  
Percentage of ownership 20.00%  
Effective percentage of ownership [3] 20.00%  
Acquisition cost ₩ 25  
Book value    
Acquisition 25  
Disposal 0  
Dividends received 0  
Share of income (loss) (3)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 22  
Share in net assets 22  
Total assets 233  
Total liabilities 125  
Net assets 108  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 285  
Profit (loss) for the period of Associates ₩ (57)  
Muan Sunshine Solar Power Plant Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 20.00%  
Effective percentage of ownership [3] 20.00%  
Acquisition cost ₩ 1,570  
Book value    
Acquisition 79  
Disposal 0  
Dividends received 0  
Share of income (loss) (475)  
Other comprehensive income (loss) 0  
Others (book value) 1,492  
Ending balance 1,096  
Share in net assets 602  
Total assets 147,908  
Total liabilities 144,898  
Net assets 3,010  
Investment differential 494  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 6,017  
Profit (loss) for the period of Associates ₩ (2,365)  
Bigeum Resident Photovoltaic Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 29.90%  
Effective percentage of ownership [3] 29.90%  
Acquisition cost ₩ 1  
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 (116)  
Total assets 11,164  
Total liabilities 11,551  
Net assets (387)  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 116  
Sales of Associates 0  
Profit (loss) for the period of Associates (309)  
Unrecognized equity interest 116  
Accumulated unrecognized equity interest ₩ 116  
Jeju SolarOne Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership [29] 10.00%  
Effective percentage of ownership [3] 10.00%  
Acquisition cost ₩ 161  
Book value    
Acquisition 161  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) (2)  
Others (book value) 0  
Ending balance 159  
Share in net assets 159  
Total assets 1,608  
Total liabilities 14  
Net assets 1,594  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ (4)  
Goesan Solar Park Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 29.00%  
Effective percentage of ownership [3] 29.00%  
Acquisition cost ₩ 1,276  
Book value    
Acquisition 1,276  
Disposal 0  
Dividends received 0  
Share of income (loss) 408  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 1,684  
Share in net assets 1,684  
Total assets 56,332  
Total liabilities 50,524  
Net assets 5,808  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 2,809  
Profit (loss) for the period of Associates ₩ (262)  
Saemangeum Heemang Photovoltaic Co.,Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 35.00%  
Effective percentage of ownership [3] 35.00%  
Acquisition cost ₩ 11,022  
Book value    
Acquisition 11,022  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 11,022  
Share in net assets 10,282  
Total assets 35,447  
Total liabilities 6,070  
Net assets 29,377  
Investment differential 740  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ (1,943)  
Bitgoel Eco Energy Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 29.00%  
Effective percentage of ownership [3] 29.00%  
Acquisition cost ₩ 29  
Book value    
Acquisition 29  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 29  
Share in net assets 29  
Total assets 100  
Total liabilities 0  
Net assets 100  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ 0  
Jeju Gimnyeong Wind Power Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 30.00%  
Effective percentage of ownership [3] 30.00%  
Acquisition cost ₩ 714  
Book value    
Acquisition 714  
Disposal 0  
Dividends received 0  
Share of income (loss) 864  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 1,578  
Share in net assets 1,578  
Total assets 72,557  
Total liabilities 67,297  
Net assets 5,260  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ 0  
Seoroseoro Sunny Power Plant Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership [30] 19.46%  
Effective percentage of ownership [3] 19.46%  
Acquisition cost ₩ 230  
Book value    
Acquisition 230  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 230  
Share in net assets 230  
Total assets 1,182  
Total liabilities 0  
Net assets 1,182  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ 0  
Muan Solar Park Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership [30] 19.00%  
Effective percentage of ownership [3] 19.00%  
Acquisition cost ₩ 4,180  
Book value    
Acquisition 4,180  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 4,180  
Share in net assets 3,871  
Total assets 245,431  
Total liabilities 225,057  
Net assets 20,374  
Investment differential 309  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 14,359  
Profit (loss) for the period of Associates ₩ (966)  
YuDang Solar Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 20.00%  
Effective percentage of ownership [3] 20.00%  
Acquisition cost ₩ 360  
Book value    
Acquisition 360  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 360  
Share in net assets 497  
Total assets 23,360  
Total liabilities 20,876  
Net assets 2,484  
Investment differential 0  
Intercompany transaction 0  
Others (consolidated FS) (137)  
Sales of Associates 1,611  
Profit (loss) for the period of Associates ₩ 686  
Anjwa Smart Farm & Solar City Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership [30] 19.50%  
Effective percentage of ownership [3] 19.50%  
Acquisition cost ₩ 5,510  
Book value    
Acquisition 5,510  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 5,510  
Share in net assets 4,714  
Total assets 295,570  
Total liabilities 271,396  
Net assets 24,174  
Investment differential 796  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 1,900  
Profit (loss) for the period of Associates ₩ (1,684)  
Daewon Green Energy Co., Ltd.    
Disclosure of associates [Line Items]    
Key operation activities Power generation  
Location KOREA  
Percentage of ownership 25.36%  
Effective percentage of ownership [3] 25.36%  
Acquisition cost ₩ 3,910  
Book value    
Acquisition 3,910  
Disposal 0  
Dividends received 0  
Share of income (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 3,910  
Share in net assets 3,866  
Total assets 15,370  
Total liabilities 122  
Net assets 15,248  
Investment differential 44  
Intercompany transaction 0  
Others (consolidated FS) 0  
Sales of Associates 0  
Profit (loss) for the period of Associates ₩ (93)  
[1] The effective percentage of ownership is 22.02% considering treasury stocks.
[2] The effective percentage of ownership is 21.57% considering treasury stocks.
[3] The percentage of ownership shown above is after considering the treasury stocks and others.
[4] The loss for the year ended December 31, 2020 is reduced by the associate entity's net income (loss) attributable to non-controlling interests.
[5] The profit recognized for the years ended December 31, 2019 is reduced by 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. Accordingly, the entity is not classified as a consolidated subsidiary. The Company can exercise significant influence by virtue of right to nominate directors to the board of directors of the entity.
[8] 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 virtue of right to nominate directors to the board of directors of the entity.
[9] As of December 31, 2019, 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] The Company recognized an impairment loss for the carrying amount of Ecollite Co., Ltd. during the prior period due to the suspension of operating activities. Ecollite Co., Ltd. has been removed from associates since it is under the process of liquidation as of December 31, 2020.
[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 significant influence on the entity.
[12] 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.
[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] Although the nominal percentage of ownership is 2.35%, the effective percentage of ownership is 25.54%, considering redeemable convertible preferred stock as a liability component.
[15] The effective percentage of ownership is 34.01% considering the conversion of redeemable convertible preferred stock into ordinary stock.
[16] The Company recognized a full impairment loss for the carrying amount of Jinbhuvish Power Generation Pvt. Ltd. before the prior year, due to the Company's decision to withdraw its business since there are no business activities occurring
[17] The Company recognized a full impairment loss for the carrying amount of Jinbhuvish Power Generation Pvt. Ltd. before the prior year, due to the Company's decision to withdraw its business since there is no business activities occurring.
[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. Accordingly, 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. Accordingly, 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 of Namjeongsusang Solar Power Operation Co., Ltd. Accordingly, the entity is classified as an associate.
[23] 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. Accordingly, the entities are classified as an associate.
[24] According to the shareholders' agreement, additional investment of 50% of total stake is agreed by March 2022
[25] 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.
[26] 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.
[27] Even though the effective percentage of ownership is more than 50%, the Company does not hold control over the entity as it has less than 50% of decision-making rights. However 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.
[28] Even though the effective percentage of ownership is more than 50%, the Company does not hold control over the entity according to its proportion to make decisions, which is less than 50%. However 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.
[29] It was newly invested during the year ended December 31, 2020. The effective percentage of ownership is less than 20%. However, it is classified as an associate, judging that the Company can exercise significant influence on the entity.
[30] The entities were newly invested during the year ended December 31, 2020. 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.