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Investments in Associates 2 (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Book value    
Beginning balance ₩ 4,250,787 ₩ 4,251,802
Acquisition 568,653 96,255
Disposal (3,484) (207)
Dividends received (148,395) (98,175)
Share of profit (loss) 417,123 59,092
Other comprehensive income (loss) 161,751 (48,911)
Others (book value) (14,062) (9,069)
Ending balance 5,232,373 4,250,787
Korea Gas Corporation    
Book value    
Beginning balance 1,647,325 [1] 1,693,967
Acquisition 0 0
Disposal 0 0
Dividends received 0 (7,182)
Share of profit (loss) 209,357 (14,104)
Other comprehensive income (loss) 13,017 (25,023)
Others (book value) (54,186) (333)
Ending balance 1,815,513 1,647,325 [1]
Korea Electric Power Industrial Development Co., Ltd.    
Book value    
Beginning balance 25,630 25,393
Acquisition 0 0
Disposal 0 0
Dividends received (1,966) (2,146)
Share of profit (loss) 378 3,806
Other comprehensive income (loss) 0 0
Others (book value) 575 (1,423)
Ending balance 24,617 25,630
YTN Co., Ltd.    
Book value    
Beginning balance 40,549 39,747
Acquisition 0 0
Disposal 0 0
Dividends received (270) (90)
Share of profit (loss) 11,192 1,086
Other comprehensive income (loss) 22 (6)
Others (book value) 335 (188)
Ending balance 51,828 40,549
Cheongna Energy Co., Ltd.    
Book value    
Beginning balance 0 1,411
Acquisition   990
Disposal   0
Dividends received   0
Share of profit (loss)   2,518
Other comprehensive income (loss)   0
Others (book value)   (4,919)
Ending balance   0
Gangwon Wind Power Co., Ltd.    
Book value    
Beginning balance 11,443 12,327
Acquisition 0 0
Disposal 0 0
Dividends received (1,703) (1,988)
Share of profit (loss) 814 1,104
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 10,554 11,443
Hyundai Green Power Co., Ltd.    
Book value    
Beginning balance 132,774 124,253
Acquisition 0 0
Disposal 0 0
Dividends received (8,888) (8,889)
Share of profit (loss) (562) 17,410
Other comprehensive income (loss) (1,346) 0
Others (book value) (23) 0
Ending balance 121,955 132,774
Korea Power Exchange    
Book value    
Beginning balance 269,122 258,899
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (10) 1,860
Other comprehensive income (loss) 0 1
Others (book value) 616 8,362
Ending balance 269,728 269,122
DAYONE ENERGY Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)    
Book value    
Beginning balance 0 0
Acquisition   0
Disposal   0
Dividends received   0
Share of profit (loss)   0
Other comprehensive income (loss)   0
Others (book value)   0
Ending balance   0
Ecollite Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition   0
Disposal   0
Dividends received   0
Share of profit (loss)   0
Other comprehensive income (loss)   0
Others (book value)   0
Ending balance   0
Taebaek Wind Power Co., Ltd.    
Book value    
Beginning balance 6,392 7,039
Acquisition 0 0
Disposal 0 0
Dividends received 0 (175)
Share of profit (loss) 408 (472)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 6,800 6,392
Taeback Guinemi Wind Power Co., Ltd.    
Book value    
Beginning balance 3,087 2,553
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 270 534
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 3,357 3,087
Pyeongchang Wind Power Co., Ltd.    
Book value    
Beginning balance 5,027 5,877
Acquisition 0 0
Disposal 0 0
Dividends received 0 (813)
Share of profit (loss) 384 (37)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 5,411 5,027
Daeryun Power Co., Ltd.    
Book value    
Beginning balance 26,353 26,247
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (927) 104
Other comprehensive income (loss) 0 0
Others (book value) 0 2
Ending balance 25,426 26,353
Changjuk Wind Power Co., Ltd.    
Book value    
Beginning balance 7,867 8,520
Acquisition 0 0
Disposal 0 0
Dividends received (449) (750)
Share of profit (loss) 937 97
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 8,355 7,867
KNH Solar Co., Ltd.    
Book value    
Beginning balance 2,436 2,382
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (158) 54
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,278 2,436
SPC Power Corporation    
Book value    
Beginning balance 69,912 63,583
Acquisition 0 0
Disposal 0 0
Dividends received (20,468) (10,764)
Share of profit (loss) 5,311 5,491
Other comprehensive income (loss) 10,291 11,649
Others (book value) 0 (47)
Ending balance 65,046 69,912
Gemeng International Energy Co., Ltd.    
Book value    
Beginning balance 679,708 670,896
Acquisition 0 0
Disposal 0 0
Dividends received (11,886) (11,620)
Share of profit (loss) (154,930) 15,965
Other comprehensive income (loss) 82,326 4,468
Others (book value) 0 (1)
Ending balance 595,218 679,708
PT. Cirebon Electric Power    
Book value    
Beginning balance 117,811 123,425
Acquisition 0 0
Disposal 0 0
Dividends received (18,253) (9,782)
Share of profit (loss) 10,679 11,330
Other comprehensive income (loss) 1,396 434
Others (book value) 10,336 (7,596)
Ending balance 121,969 117,811
KNOC Nigerian East Oil Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (14) (22)
Other comprehensive income (loss) (938) 671
Others (book value) 952 (649)
Ending balance 0 0
KNOC Nigerian West Oil Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (15) (22)
Other comprehensive income (loss) (862) 617
Others (book value) 877 (595)
Ending balance 0 0
PT Wampu Electric Power    
Book value    
Beginning balance 27,865 29,355
Acquisition 0 0
Disposal 0 0
Dividends received 0 (1,303)
Share of profit (loss) 3,196 3,245
Other comprehensive income (loss) 1,355 (1,639)
Others (book value) 2,661 (1,793)
Ending balance 35,077 27,865
PT. Bayan Resources TBK    
Book value    
Beginning balance 425,234 445,141
Acquisition 0 0
Disposal 0 0
Dividends received (68,666) (15,720)
Share of profit (loss) 267,874 17,139
Other comprehensive income (loss) 36,885 (21,256)
Others (book value) (38) (70)
Ending balance 661,289 425,234
S-Power Co., Ltd.    
Book value    
Beginning balance 110,292 115,784
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 12,437 (5,429)
Other comprehensive income (loss) 57 0
Others (book value) 0 (63)
Ending balance 122,786 110,292
Pioneer Gas Power Limited    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Eurasia Energy Holdings    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Xe-Pian Xe-Namnoy Power Co., Ltd.    
Book value    
Beginning balance 64,570 72,935
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 19,306 (2,896)
Other comprehensive income (loss) 8,565 (5,469)
Others (book value) 0 0
Ending balance 92,441 64,570
Hadong Mineral Fiber Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Green Biomass Co., Ltd.    
Book value    
Beginning balance 0 108
Acquisition   0
Disposal   (108)
Dividends received   0
Share of profit (loss)   0
Other comprehensive income (loss)   0
Others (book value)   0
Ending balance   0
PT. Mutiara Jawa    
Book value    
Beginning balance 1,780 1,438
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 630 459
Other comprehensive income (loss) 159 (117)
Others (book value) 0 0
Ending balance 2,569 1,780
Samcheok Eco Materials Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Noeul Green Energy Co., Ltd.    
Book value    
Beginning balance 4,197 6,610
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (389) (2,413)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 3,808 4,197
Naepo Green Energy Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition   0
Disposal   0
Dividends received   0
Share of profit (loss)   (9,789)
Other comprehensive income (loss)   0
Others (book value)   9,789
Ending balance   0
Goseong Green Power Co., Ltd.    
Book value    
Beginning balance 2,186 2,340
Acquisition 259,840 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (1,168) (154)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 260,858 2,186
Gangneung Eco Power Co., Ltd.    
Book value    
Beginning balance 2,368 2,430
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (80) (62)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,288 2,368
Shin Pyeongtaek Power Co., Ltd.    
Book value    
Beginning balance 69,591 66,956
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 23,476 11,877
Other comprehensive income (loss) 0 (3,604)
Others (book value) 7 (5,638)
Ending balance 93,074 69,591
Haeng Bok Do Si Photovoltaic Power Co Ltd    
Book value    
Beginning balance 210 215
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 13 (5)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 223 210
Dongducheon Dream Power Co., Ltd.    
Book value    
Beginning balance 80,637 76,547
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (6,439) 4,095
Other comprehensive income (loss) 0 0
Others (book value) 0 (5)
Ending balance 74,198 80,637
Jinbhuvish Power Generation Pvt. Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Daejung Offshore Wind Power Co., Ltd.    
Book value    
Beginning balance 2,165 2,361
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (461) (411)
Other comprehensive income (loss) 0 0
Others (book value) 0 215
Ending balance 1,704 2,165
GS Donghae Electric Power Co., Ltd.    
Book value    
Beginning balance 244,426 255,983
Acquisition 0 0
Disposal 0 0
Dividends received (15,640) (25,796)
Share of profit (loss) 14,972 14,265
Other comprehensive income (loss) 0 0
Others (book value) 14 (26)
Ending balance 243,772 244,426
Daegu Photovoltaic Co., Ltd.    
Book value    
Beginning balance 2,066 2,060
Acquisition 0 0
Disposal 0 0
Dividends received (206) (325)
Share of profit (loss) 482 331
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 2,342 2,066
Busan Green Energy Co., Ltd.    
Book value    
Beginning balance 8,778 10,637
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (3,750) (1,862)
Other comprehensive income (loss) 0 0
Others (book value) 4 3
Ending balance 5,032 8,778
Gunsan Bio Energy Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Korea Electric Vehicle Charging Service    
Book value    
Beginning balance 576 1,063
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (283) (491)
Other comprehensive income (loss) 0 0
Others (book value) 957 4
Ending balance 1,250 576
Korea Nuclear Partners Co., Ltd.    
Book value    
Beginning balance 200 0
Acquisition   247
Disposal   0
Dividends received   0
Share of profit (loss)   (43)
Other comprehensive income (loss)   (4)
Others (book value)   0
Ending balance   200
Korea Electric Power Corporation Fund    
Book value    
Beginning balance 41,926 41,126
Acquisition 0 0
Disposal (3,090) 0
Dividends received 0 0
Share of profit (loss) 9,065 (908)
Other comprehensive income (loss) 82 1,708
Others (book value) 0 0
Ending balance 47,983 41,926
Energy Infra Asset Management Co., Ltd.    
Book value    
Beginning balance 938 791
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 128 147
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 1,066 938
Daegu clean Energy Co., Ltd.    
Book value    
Beginning balance 12 13
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 (1)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 12 12
Yaksu ESS Co., Ltd.    
Book value    
Beginning balance 454 516
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 262 (62)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 716 454
Nepal Water & Energy Development Company Private Ltd    
Book value    
Beginning balance 42,677 31,145
Acquisition 19,960 14,697
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (616) (1,699)
Other comprehensive income (loss) 4,312 (1,466)
Others (book value) 0 0
Ending balance 66,333 42,677
Gwangyang Green Energy Co., Ltd.    
Book value    
Beginning balance 926 948
Acquisition 24,800 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (138) (22)
Other comprehensive income (loss) (122) 0
Others (book value) 0 0
Ending balance 25,466 926
PND Solar Co., Ltd.    
Book value    
Beginning balance 1,149 1,144
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 80 5
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 1,229 1,149
Hyundai Ecoenergy Co., Ltd.    
Book value    
Beginning balance 4,250 3,781
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 1,322 469
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 5,572 4,250
YeongGwang Yaksu Wind Electric Co., Ltd.    
Book value    
Beginning balance 312 386
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (79) (74)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 233 312
Green Energy Electricity Generation Co., Ltd.    
Book value    
Beginning balance 25 163
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 1,688 (138)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 1,713 25
Korea Energy Solution Co., Ltd.    
Book value    
Beginning balance 197 259
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (74) (62)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 123 197
ITR Co., Ltd.    
Book value    
Beginning balance 40 33
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (8) 7
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 32 40
Structure test network Co., Ltd.    
Book value    
Beginning balance 27 21
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 279 6
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 306 27
Namjeongsusang Solar Power Operation Co., Ltd.    
Book value    
Beginning balance 103 812
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 258 (709)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 361 103
Indeck Niles Development, LLC    
Book value    
Beginning balance 20,627 0
Acquisition 222,551 45,562
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (13,160) (13,344)
Other comprehensive income (loss) 6,652 (9,846)
Others (book value) 9,603 (1,745)
Ending balance 246,273 [2] 20,627
Indeck Niles Asset Management, LLC    
Book value    
Beginning balance 101 87
Acquisition 0 0
Disposal 0 0
Dividends received 0 (539)
Share of profit (loss) 567 559
Other comprehensive income (loss) 0 0
Others (book value) (557) (6)
Ending balance 111 101
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1    
Book value    
Beginning balance 7,326 7,126
Acquisition 0 294
Disposal (188) (99)
Dividends received 0 (291)
Share of profit (loss) 399 296
Other comprehensive income (loss) 0 0
Others (book value) (399) 0
Ending balance 7,138 7,326
Suwon New Power Co., Ltd.    
Book value    
Beginning balance 1,054 798
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (5) 256
Other comprehensive income (loss) (14) 0
Others (book value) 0 0
Ending balance 1,035 1,054
KPGE Inc.    
Book value    
Beginning balance 287 287
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 22 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 309 287
Gwangbaek Solar Power Investment Co., Ltd.    
Book value    
Beginning balance 4,682 2,054
Acquisition 0 2,703
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 124 (75)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 4,806 4,682
Go deok Clean Energy Co., Ltd    
Book value    
Beginning balance 960 1,830
Acquisition 3,730 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (333) (843)
Other comprehensive income (loss) (55) (27)
Others (book value) 0 0
Ending balance 4,302 960
SureDataLab Co., Ltd.    
Book value    
Beginning balance 85 0
Acquisition 0 126
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 43 (41)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 128 85
SEP Co., Ltd.    
Book value    
Beginning balance 14 0
Acquisition 0 27
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (7) (13)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 7 14
Hankook Electric Power Information Co., Ltd.    
Book value    
Beginning balance 139 0
Acquisition 0 38
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 22 101
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 161 139
Tronix Co., Ltd.    
Book value    
Beginning balance 119 0
Acquisition 0 75
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (10) 44
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 109 119
O2&B Global Co., Ltd.    
Book value    
Beginning balance 22 0
Acquisition 0 25
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 13 (3)
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 35 22
Muan Sunshine Solar Power Plant Co., Ltd.    
Book value    
Beginning balance 1,096 0
Acquisition 0 79
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 172 (475)
Other comprehensive income (loss) 0 0
Others (book value) 0 1,492
Ending balance 1,268 1,096
Bigeum Resident Photovoltaic Power Co., Ltd.    
Book value    
Beginning balance 0 0
Acquisition 0 0
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 0 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 0 0
Jeju SolarOne Co., Ltd.    
Book value    
Beginning balance 159 0
Acquisition 45 161
Disposal (206) 0
Dividends received 0 0
Share of profit (loss) (1) 0
Other comprehensive income (loss) 0 (2)
Others (book value) 3 0
Ending balance 0 159
Energy Innovation Fund I    
Book value    
Beginning balance 0 0
Acquisition   4,000
Disposal   0
Dividends received   (2)
Share of profit (loss)   (159)
Other comprehensive income (loss)   0
Others (book value)   (3,839)
Ending balance   0
Goesan Solar Park Co., Ltd.    
Book value    
Beginning balance 1,684 0
Acquisition 0 1,276
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 249 408
Other comprehensive income (loss) (6) 0
Others (book value) 0 0
Ending balance 1,927 1,684
Saemangeum Heemang Photovoltaic Co.,Ltd.    
Book value    
Beginning balance 11,022 0
Acquisition 0 11,022
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (784) 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 10,238 11,022
Bitgoel Eco Energy Co., Ltd.    
Book value    
Beginning balance 29 0
Acquisition 4,611 29
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (261) 0
Other comprehensive income (loss) (23) 0
Others (book value) 0 0
Ending balance 4,356 29
Jeju Gimnyeong Wind Power Co., Ltd.    
Book value    
Beginning balance 1,578 0
Acquisition 0 714
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (665) 864
Other comprehensive income (loss) (2) 0
Others (book value) 0 0
Ending balance 911 1,578
Seoroseoro Sunny Power Plant Co., Ltd.    
Book value    
Beginning balance 230 0
Acquisition 476 230
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 15 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 721 230
Muan Solar Park Co., Ltd.    
Book value    
Beginning balance 4,180 0
Acquisition 220 4,180
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 1,683 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 6,083 4,180
YuDang Solar Co., Ltd.    
Book value    
Beginning balance 360 0
Acquisition 0 360
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 205 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 565 360
Anjwa Smart Farm & Solar City Co., Ltd.    
Book value    
Beginning balance 5,510 0
Acquisition 141 5,510
Disposal 0 0
Dividends received 0 0
Share of profit (loss) 1,133 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 6,784 5,510
Daewon Green Energy Co., Ltd.    
Book value    
Beginning balance 3,910 0
Acquisition 0 3,910
Disposal 0 0
Dividends received 0 0
Share of profit (loss) (33) 0
Other comprehensive income (loss) 0 0
Others (book value) 0 0
Ending balance 3,877 3,910
Hansuwon KNP Co., Ltd. (formerly, Korea Nuclear Partners Co., Ltd.)    
Book value    
Beginning balance 200  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of profit (loss) 19  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 219 200
G.GURU Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 493  
Disposal 0  
Dividends received 0  
Share of profit (loss) (90)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 403 0
UD4M Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 75  
Disposal 0  
Dividends received 0  
Share of profit (loss) 217  
Other comprehensive income (loss) 0  
Others (book value) (148)  
Ending balance 144 0
Dongbu Highway Solar Co.,Ltd.    
Book value    
Beginning balance 0  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of profit (loss) 74  
Other comprehensive income (loss) 0  
Others (book value) 191  
Ending balance 265 0
Seobu Highway Solar Co.,Ltd.    
Book value    
Beginning balance 0  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of profit (loss) 94  
Other comprehensive income (loss) 0  
Others (book value) 195  
Ending balance 289 0
Korea Energy Data Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 60  
Disposal 0  
Dividends received 0  
Share of profit (loss) 2  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 62 0
Gangneung Sacheon Fuel Cell Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 1,950  
Disposal 0  
Dividends received 0  
Share of profit (loss) (72)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 1,878 0
Kosture Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of profit (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 0 0
Digital Innovation Growth Fund    
Book value    
Beginning balance 0  
Acquisition 10,000  
Disposal 0  
Dividends received 0  
Share of profit (loss) (110)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 9,890 [3] 0
Taebaek Gadeoksan Wind Power Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 0  
Disposal 0  
Dividends received 0  
Share of profit (loss) 2,532  
Other comprehensive income (loss) 0  
Others (book value) 13,963  
Ending balance 16,495 0
Chuncheon Green Energy Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 3,400  
Disposal 0  
Dividends received 0  
Share of profit (loss) (28)  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 3,372 [4] 0
Yeomsubong Wind Power Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 95  
Disposal 0  
Dividends received 0  
Share of profit (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 95 0
Yeongyang Wind Power Corporation II    
Book value    
Beginning balance 0  
Acquisition 7,965  
Disposal 0  
Dividends received 0  
Share of profit (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 7,965 0
Haeparang Energy Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 2,241  
Disposal 0  
Dividends received 0  
Share of profit (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance 2,241 0
Saemangeum Sebit Power Plant Co., Ltd.    
Book value    
Beginning balance 0  
Acquisition 6,000  
Disposal 0  
Dividends received 0  
Share of profit (loss) 0  
Other comprehensive income (loss) 0  
Others (book value) 0  
Ending balance ₩ 6,000 [4] ₩ 0
[1] The effective percentage of ownership is 22.02% considering treasury stocks.
[2] According to the shareholders’ agreement, additional investment of 50% of total stake is agreed by March 2022.
[3] 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.
[4] 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.