XML 121 R105.htm IDEA: XBRL DOCUMENT v3.21.1

Related parties (Tables)

12 Months Ended

Dec. 31, 2020

Related Parties [Abstract]

Related Party Transactions

Related party transactions for the years ended December 31, 2018, 2019 and 2020 are as follows:

<Sales and Others>

										Sales and others
Company name		Transaction type								2018				2019				2020
										In millions of won
<Associates>
Dongducheon Dream Power Co., Ltd.			Electricity sales			￦					6,093				7,071				7,757
Korea Gas Corporation			Electricity sales								99,933				116,484				97,685
Daejung Offshore Wind Power Co., Ltd.			Electricity sales								1				1				32
Daegu Photovoltaic Co., Ltd.			Electricity sales								128				327				325
Haeng Bok Do Si Photovoltaic Power Co., Ltd.			Electricity sales								2				2				2
Korea Electric Power Industrial Development Co., Ltd.			Service								10,422				11,085				10,833
Goseong Green Power Co., Ltd.			Electricity sales								10,024				19,245				47,701
Gangneung Eco Power Co., Ltd.			Service								4,928				7,446				10,178
Shin Pyeongtaek Power Co., Ltd.			Electricity sales								8,468				21,218				20,791
Noeul Green Energy Co., Ltd.			Electricity sales								30				30				30
Samcheok Eco Materials Co., Ltd.			Electricity sales								605				627				700
YTN Co., Ltd.			Electricity sales								2,043				2,257				1,805
Busan Green Energy Co., Ltd.			Electricity sales								19				18				34
Gunsan Bio Energy Co., Ltd.			Electricity sales								3,611				4,755				102
Korea Electric Vehicle Charging Service			Electricity sales								578				1,029				1,956
Tamra Offshore Wind Power Co., Ltd.			Electricity sales								58				—				—
Daegu clean Energy Co., Ltd.			Electricity sales								126				—				—
Gangwon Wind Power Co., Ltd.			Electricity sales								2,402				2,433				2,109
Gwangyang Green Energy Co., Ltd.			Electricity sales								874				122				23
Bigeum Resident Photovoltaic Power Co., Ltd.			Electricity sales								—				—				85
Hyundai Green Power Co., Ltd.			Design service								14,031				13,106				17,257
Korea Power Exchange			Service								6,854				7,670				25,919
Taebaek Wind Power Co., Ltd.			Service								614				991				226
Taebaek Guinemi Wind Power Co., Ltd.			Electricity sales								—				77				37
Pyeongchang Wind Power Co., Ltd.			Design service								1,166				1,189				2,064
Daeryun Power Co., Ltd.			Electricity sales								1,731				1,879				1,947
Changjuk Wind Power Co., Ltd.			Electricity sales								758				927				2,067
GS Donghae Power Co., Ltd.			Electricity sales								7,238				15,792				31,557
KNH Solar Co., Ltd.			Electricity sales								17				17				16
S-Power Co., Ltd.			Service								9,118				6,535				6,682
PND solar Co., Ltd.			Electricity sales								12				407				409
Hyundai Ecoenergy Co., Ltd.			Electricity sales								—				117				167
YeongGwang Yaksu Wind Electric Co., Ltd.			Electricity sales								—				81				77
Korea Energy Solution Co., Ltd.			Electricity sales								—				52				7
Green Energy Electricity Generation Co., Ltd.			Electricity sales								—				—				14
Namjeongsusang Solar Power Operation Co., Ltd.			Electricity sales								—				—				14
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1			Electricity sales								—				—				291
Muan Solar Park Co., Ltd.		Electricity sales		￦					—				—				57
Suwon New Power Co., Ltd.		Electricity sales							—				5,606				2,974
Muan Sunshine Solar Power Plant Co., Ltd.		Electricity sales							—				—				30
9 Associates (Overseas)		Electricity sales and others							60,318				98,450				66,755
<Joint ventures>
Naepo Green Energy Co., Ltd.		Electricity sales							160				154				217
Cheongna Energy Co., Ltd.		Service							11,688				9,922				13,791
DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)		Service							1,718				3,437				4,816
Daegu Green Power Co., Ltd.		Electricity sales							1,022				1,151				1,285
KAPES, Inc.		Commission							648				504				476
Honam Wind Power Co., Ltd.		Electricity sales							415				657				502
Jeongam Wind Power Co., Ltd.		Electricity sales							724				1,198				1,213
Korea Power Engineering Service Co., Ltd.		Service							840				348				203
Seokmun Energy Co., Ltd.		Service							1,897				1,495				1,932
Incheon New Power Co., Ltd.		Construction revenue							568				354				14
Chun-cheon Energy Co., Ltd.		Electricity sales							2,471				2,397				2,657
Yeonggwangbaeksu Wind Power Co., Ltd.		Electricity sales							1,540				1,744				1,788
Yeonggwang Wind Power Co., Ltd.		Electricity sales							46				705				793
Sam-Yang Photovoltaic Power Co., Ltd.		Electricity sales							—				—				33
NH-Amundi Global Infrastructure Investment Private Investment Trust 21		Service							—				—				1,388
KW Nuclear Components Co., Ltd.		Service							839				721				1,639
KEPCO-Uhde Inc.		Electricity sales							17				15				8
Busan Shinho Solar Power Co., Ltd.		Electricity sales							362				452				353
Daesan Green Energy Co., Ltd.		Electricity sales							—				39				703
Taebaek Gadeoksan Wind Power Co., Ltd.		Electricity sales							—				—				3
Cheong-Song Noraesan Wind Power Co., Ltd.		Electricity sales							—				6				29
Saemangeum Solar Power Co., Ltd.		Service							—				2,230				2,846
Jaeun Resident Wind Power Plant Co., Ltd.		Electricity sales							—				105				—
Dangjin Eco Power co., Ltd.		Electricity sales							3,424				4				33
Bitsolar Energy Co., Ltd.		Electricity sales							—				—				42
Haemodum Solar Co., Ltd.		Electricity sales							—				—				4
Yeongam Solar Power Co., Ltd.		Electricity sales							—				—				165
Solaseado Solar Power Co., Ltd.		Electricity sales							—				—				66
29 Joint ventures (Overseas)		Electricity sales and others							206,054				1,275,279				831,596
<Others>
Yeongwol Energy Station Co., Ltd.		Service							373				—				—
DS POWER Co., Ltd.		Service							565				—				—
Ulleungdo Natural Energy Co., Ltd.		Service							292				—				—
Korea Development Bank		Electricity sales							3,524				3,948				4,248
		Interest income							4,438				2,091				3,461

<Purchase and Others>

								Purchase and others
Company name		Transaction type						2018				2019				2020
								In millions of won
<Associates>
Dongducheon Dream Power Co., Ltd.		Electricity purchase		￦					828,547				689,510				552,692
Korea Gas Corporation		Purchase of power generation fuel							5,191,243				4,049,486				3,270,972
Daegu Photovoltaic Co., Ltd.		REC purchase							3,745				3,626				3,313
Haeng Bok Do Si Photovoltaic Power Co., Ltd.		REC purchase							455				450				370
Korea Electric Power Industrial Development Co., Ltd.		Electricity metering service fee							261,668				245,057				212,366
Goseong Green Power Co., Ltd.		Electricity purchase							—				32				—
Gangneung Eco Power Co., Ltd.		Service							19				—				—
Shin Pyeongtaek Power Co., Ltd.		Electricity purchase							—				119,162				520,737
Noeul Green Energy Co., Ltd.		REC purchase							18,282				22,767				10,634
Samcheok Eco Materials Co., Ltd.		Electricity purchase							3,819				9,425				10,713
YTN Co., Ltd.		Service							322				333				353
Busan Green Energy Co., Ltd.		Electricity purchase							25,123				13,811				18,678
Gunsan Bio Energy Co., Ltd.		Electricity purchase							—				3,022				24
Korea Electric Vehicle Charging Service		Service							605				536				581
Tamra Offshore Wind Power Co., Ltd.		Electricity purchase							8,371				—				—
Yaksu ESS Co., Ltd.		Service							—				1,191				217
Gangwon Wind Power Co., Ltd.		Electricity purchase							25,407				24,116				23,350
Hyundai Green Power Co., Ltd.		Electricity purchase							480,815				507,662				349,778
Korea Power Exchange		Trading fees							137,489				120,509				87,361
Taebaek Wind Power Co., Ltd.		Electricity purchase							8,582				7,070				4,003
Taebaek Guinemi Wind Power Co., Ltd.		Electricity purchase							—				349				5,023
Pyeongchang Wind Power Co., Ltd.		Electricity purchase							6,994				5,188				3,969
Daeryun Power Co., Ltd.		Electricity purchase							184,063				144,862				99,523
Changjuk Wind Power Co., Ltd.		Electricity purchase							7,929				6,994				6,084
GS Donghae Electric Power Co., Ltd.		Electricity purchase							780,233				681,379				660,351
KNH Solar Co., Ltd.		Electricity purchase							3,586				3,377				3,564
S-Power Co., Ltd.		Electricity purchase							507,875				522,469				293,515
Hadong Mineral Fiber Co., Ltd.		Service							60				—				—
Green Biomass Co., Ltd.		Woodchip purchase							440				—				—
YeongGwang Yaksu Wind Electric Co., Ltd		Electricity purchase							2,437				6,511				9,151
PND solar Co., Ltd.		Electricity purchase							—				557				5,234
Hyundai Ecoenergy Co., Ltd.		Electricity purchase							—				6,810				17,777
Korea Energy Solution Co., Ltd.		Electricity purchase							—				15				—
Gwangbaek Solar Power Investment Co., Ltd.		Electricity purchase							—				—				373
9 Associates (Overseas)		Electricity purchase and others							31				—				—
<Joint ventures>
Cheongna Energy Co., Ltd.		Electricity purchase		￦					58				58,747				66
DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)		Electricity purchase							3,445				2,847				1,120
Daegu Green Power Co., Ltd.		Electricity purchase							287,008				296,464				215,224
KAPES, Inc.		Service							77,758				142,511				219,673
Honam Wind Power Co., Ltd.		Electricity purchase							7,700				5,306				4,382
Jeongam Wind Power Co., Ltd.		Electricity purchase							—				—				5,982
Korea Power Engineering Service Co., Ltd.		Service							1,765				1,774				1,594
Seokmun Energy Co., Ltd.		Electricity purchase							31,759				26,370				33,164
Chun-cheon Energy Co., Ltd.		Electricity purchase							320,954				313,471				222,069
Yeonggwangbaeksu Wind Power Co., Ltd.		Electricity purchase							11,366				11,739				11,232
Yeonggwang Wind Power Co., Ltd.		Electricity purchase							—				11,940				24,103
Sam-Yang Photovoltaic Power Co., Ltd.		Electricity purchase							—				—				3,848
Busan Shinho Solar Power Co., Ltd.		REC purchase							7,901				7,843				7,296
Global Trade Of Power System Co., Ltd.		Service							565				502				337
Expressway Solar-light Power Generation Co., Ltd.		REC purchase							3,513				3,067				2,472
Daesan Green Energy Co., Ltd.		Electricity purchase							—				—				104,854
Dangjin Eco Power Co., Ltd.		Electricity purchase							—				—				3,953
Busan Industrial Solar Power Co., Ltd.		Electricity purchase							—				—				19
Haemodum Solar Co., Ltd.		Electricity purchase							—				—				967
Yeongam Solar Power Co., Ltd.		Electricity purchase							—				—				32,208
Solaseado Solar Power Co., Ltd.		Electricity purchase							—				—				28,516
29 Joint ventures (Overseas)		Electricity purchase and others							1,404				7,232				14,767
<Others>
Yeongwol Energy Station Co., Ltd.		REC purchase							4,019				—				—
Ulleungdo Natural Energy Co., Ltd.		Service							63				—				—
Korea Development Bank		Interest expense							5,043				4,063				3,872
		Dividend paid							166,876				20				17

Receivables and payables arising from related party transactions

Receivables and payables arising from related party transactions as of December 31, 2019 and 2020 are as follows:

								Receivables								Payables
Company name		Type						2019				2020				2019				2020
								In millions of won
<Associates>
Dongducheon Dream Power Co., Ltd.		Trade receivables		￦					323				388				—				—
		Non-trade receivables and others							267				213				—				—
		Trade payables							—				—				85,920				65,794
		Non-trade payables and others							—				—				12				—
Korea Gas Corporation		Trade receivables		￦					9,267				9,969				—				—
		Non-trade receivables and others							38				95				—				—
		Trade payables							—				—				462,138				428,763
		Non-trade payables and others							—				—				560				617
Daejung Offshore Wind Power Co., Ltd.		Non-trade receivables and others							—				31				—				—
Daegu Photovoltaic Co., Ltd.		Trade payables							—				—				69				57
Korea Electric Power Industrial Development Co., Ltd.		Trade receivables							243				508				—				—
		Non-trade receivables and others							43				16				—				—
		Trade payables							—				—				3,756				133
		Non-trade payables and others							—				—				3,827				3,779
Goseong Green Power Co., Ltd.		Trade receivables							103				2,181				—				—
		Non-trade receivables and others							5,285				9,214				—				—
		Non-trade payables and others							—				—				65,626				64,986
Gangneung Eco Power Co., Ltd.		Trade receivables							115				661				—				—
		Non-trade receivables and others							65				146				—				—
Shin Pyeongtaek Power Co., Ltd.		Trade receivables							1,013				1,348				—				—
		Non-trade receivables and others							2,281				2,823				—				—
		Trade payables							—				—				64,696				47,948
		Non-trade payables and others							—				—				61				85
Noeul Green Energy Co., Ltd.		Trade receivables							3				3				—				—
		Non-trade receivables and others							—				969				—				—
		Non-trade payables and others							—				—				1,855				—
Samcheok Eco Materials Co., Ltd.		Trade receivables							59				47				—				—
YTN Co., Ltd.		Trade receivables							97				97				—				—
Busan Green Energy Co., Ltd.		Trade receivables							1				5				—				—
		Non-trade receivables and others							—				13,946				—				—
		Non-trade payables and others							—				—				606				—
Korea Electric Vehicle Charging Service		Trade receivables							137				141				—				—
		Non-trade receivables and others							529				281				—				—
Yaksu ESS Co., Ltd.		Trade payables							—				—				525				739
Gangwon Wind Power Co., Ltd.		Trade receivables							7				6				—				—
		Trade payables							—				—				2,979				2,678
Gwangyang Green Energy Co., Ltd.		Non-trade receivables and others							1,334				1,356				—				—
Hyundai Green Power Co., Ltd.		Trade receivables		￦					502				554				—				—
		Trade payables							—				—				41,587				9,825
Korea Power Exchange		Trade receivables							1,142				1,608				—				—
		Non-trade receivables and others							144				24				—				—
		Trade payables							—				—				—				1,362
		Non-trade payables and others							—				—				4,160				70,456
Ecollite Co., Ltd.		Non-trade receivables and others							210				—				—				—
Taebaek Wind Power Co., Ltd.		Non-trade receivables and others							—				1,405				—				—
		Trade payables							—				—				358				443
		Non-trade payables and others							—				—				243				—
Taebaek Guinemi Wind Power Co., Ltd.		Non-trade receivables and others							2				—				—				—
		Trade payables							—				—				190				413
		Non-trade payables and others							—				—				—				509
Pyeongchang Wind Power Co., Ltd.		Trade receivables							4				3				—				—
Daeryun Power Co., Ltd.		Trade receivables							144				189				—				—
		Trade payables							—				—				19,843				16,079
Changjuk Wind Power Co., Ltd.		Trade payables							—				—				447				461
		Non-trade payables and others							—				—				280				309
GS Donghae Electric power Co., Ltd.		Trade receivables							175				386				—				—
		Non-trade receivables and others							367				321				—				—
		Trade payables							—				—				69,811				91,213
		Non-trade payables and others							—				—				16				36
KNH Solar Co., Ltd.		Trade receivables							1				1				—				—
		Trade payables							—				—				—				14
		Non-trade payables and others							—				—				—				187
S-Power Co., Ltd.		Trade receivables							89				137				—				—
		Non-trade receivables and others							43				46				—				—
		Trade payables							—				—				53,705				23,415
PND solar Co., Ltd.		Trade payables							—				—				—				58
Hyundai Ecoenergy Co., Ltd.		Trade receivables							16				16				—				—
YeongGwang Yaksu Wind Electric Co., Ltd.		Trade receivables							5				8				—				—
Muan Solar Park Co., Ltd.		Trade receivables							—				24				—				—
Go deok Clean Energy Co., Ltd.		Non-trade receivables and others							—				1				—				—
Suwon New Power Co., Ltd.		Trade receivables		￦					—				2				—				—
		Non-trade receivables and others							2,939				712				—				—
6 Associates (Overseas)		Non-trade receivables and others							1,112				3,248				—				—
<Joint ventures>
Naepo Green Energy Co., Ltd.		Trade receivables							18				56				—				—
DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)		Trade receivables							128				57				—				—
		Non-trade receivables and others							12,532				11,749				—				—
		Trade payables							—				—				175				10
		Non-trade payables and others							—				—				9,178				9,119
Daegu Green Power Co., Ltd.		Trade receivables							113				44				—				—
		Non-trade receivables and others							1				55				—				—
		Trade payables							—				—				28,980				26,213
KAPES, Inc.		Trade receivables							1				2				—				—
		Non-trade receivables and others							—				5,172				—				—
		Non-trade payables and others							—				—				50,738				20,577
Honam Wind Power Co., Ltd.		Trade payables							—				—				347				216
		Non-trade payables and others							—				—				1,671				345
Jeongam Wind Power Co., Ltd.		Trade receivables							165				—				—				—
		Non-trade receivables and others							—				162				—				—
		Non-trade payables and others							—				—				6				692
Korea Power Engineering Service Co.,Ltd.		Non-trade receivables and others							74				43				—				—
Seokmun Energy Co., Ltd.		Trade receivables							51				62				—				—
		Non-trade receivables and others							136				9,460				—				—
		Trade payables							—				—				—				4,898
		Non-trade payables and others							—				—				4,750				9,559
Chun-cheon Energy Co., Ltd.		Trade receivables							260				98				—				—
		Non-trade receivables and others							5,362				165				—				—
		Trade payables							—				—				23,438				27,428
Yeonggwangbaeksu Wind Power Co., Ltd.		Trade receivables							6				8				—				—
		Non-trade receivables and others							157				159				—				—
		Trade payables							—				—				671				405
		Non-trade payables and others							—				—				1,526				1,747
Cheongna Energy Co., Ltd.		Trade receivables							1,074				1,592				—				—
		Non-trade receivables and others							—				1,186				—				—
Yeonggwang Wind Power Co., Ltd.			Trade receivables			￦					10				12				—				—
			Non-trade receivables and others								54				54				—				—
			Trade payables								—				—				—				886
			Non-trade payables and others								—				—				2,432				3,038
Sam-Yang Photovoltaic Power Co., Ltd.			Trade receivables								—				5				—				—
			Non-trade payables and others								—				—				—				625
KW Nuclear Components Co., Ltd.			Trade receivables								4				4				—				—
			Non-trade receivables and others								15				—				—				—
KEPCO-Uhde Inc.			Non-trade payables								—				—				9				—
Busan Shinho Solar Power Co., Ltd.			Trade receivables								2				2				—				—
			Trade payables								—				—				148				135
			Non-trade payables and others								—				—				733				780
Daesan Green Energy Co., Ltd.			Trade receivables								6				11				—				—
			Non-trade receivables and others								—				216				—				—
			Trade payables								—				—				—				7,694
Taebaek Gadeoksan Wind Power Co., Ltd.			Non-trade receivables and others								—				5				—				—
			Trade payables								—				—				—				2,473
			Non-trade payables and others								—				—				—				5
Cheong-Song Noraesan Wind Power Co., Ltd.			Trade receivables								1				2				—				—
Saemangeum Solar Power Co., Ltd.			Non-trade receivables and others								2,197				3,141				—				—
Dangjin Eco Power Co., Ltd.			Trade receivables								2				3				—				—
			Trade payables								—				—				—				326
Busan Industrial Solar Power Co., Ltd.			Trade payables								—				—				—				1
Yeongam Solar Power Co., Ltd.			Trade receivables								—				26				—				—
			Trade payables								—				—				—				14,652
15 Joint ventures (Overseas)			Trade receivables								51,700				58,839				—				—
			Non-trade receivables and others								13,652				17,217				—				—
			Non-trade payables and others								—				—				87,395				105,682
<Others>
Korea Development Bank			Accrued interest income								1,630				51				—				—
			Non-trade receivables and others								146,416				206,916				—				—
			Non-trade payables and others								—				—				152				123
			Derivatives								41,368				20,167				6,531				20,001

Loans and others arising from related party transactions

Loans and others arising from related party transactions as of December 31, 2019 and 2020 are as follows:

Type		Company name						Beginning balance				Loans				Collection				Others				Ending balance
								In millions of won
Associates		KNOC Nigerian East Oil Co., Ltd., KNOC Nigerian West Oil Co., Ltd.		￦					28,676				92				—				(1,619	)			27,149
		(Allowance for doubtful accounts)							(7,325	)			—				—				2,079				(5,246	)
Associates		PT. Cirebon Electric Power							578				—				(609	)			31				—
Associates		Xe-Pian Xe-Namnoy Power Co., Ltd.							20,955				—				—				(1,263	)			19,692
Associates		PT. Wampu Electric Power							16,502				—				(4,474	)			330				12,358
Associates		Gunsan Bio Energy Co., Ltd.							12,396				—				—				—				12,396
		(Allowance for doubtful accounts)							(10,128	)			—				—				—				(10,128	)
Associates		Bigeum Resident Photovoltaic Power Co., Ltd.							—				3,500				—				—				3,500
Associates		Daejung Offshore Wind Power Co., Ltd.							—				1,000				—				—				1,000
Joint ventures		DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)							2,465				—				(2,465	)			—				—
		(Allowance for doubtful accounts)							(2,465	)			—				2,465				—				—
Joint ventures		Solaseado Solar Power Co., Ltd.							—				64,000				—				—				64,000
Joint ventures		Recursos Solares PV De Mexico II, S.A. De C.V. DE C.V.							1,055				4,458				—				(669	)			4,844
Joint ventures		Horus Solar, S.A. De C.V.							3,323				11,404				—				(1,347	)			13,380
Joint ventures		SUNMEX RENOVABLES, S.A. DE C.V.							144				1,755				—				(57	)			1,842
Joint ventures		Kelar S.A.							42,158				—				—				(2,542	)			39,616
Joint ventures		Chun-cheon Energy Co., Ltd.							5,057				—				(5,057	)			—				—
Joint ventures		DE Energia SpA							6,632				—				—				(400	)			6,232
Joint ventures		Daehan Wind Power PSC							—				11,852				—				(1,152	)			10,700
Joint ventures		PT. Tanjung Power Indonesia							—				777				—				(72	)			705
Joint ventures		Bitsolar Energy Co., Ltd.,							—				3,165				—				—				3,165
				￦					120,023				102,003				(10,140	)			(6,681	)			205,205

Borrowings arising from related party transactions

Borrowings arising from related party transactions as of December 31, 2019 and 2020 are as follows:

Related parties		Type						Beginning balance				Borrowings				Repayment				Others				Ending balance
								In millions of won
Korea Development Bank		Facility		￦					59,845				—				(9,552	)			—				50,293
		Others							3,500				—				(554	)			—				2,946
		Operating funds							179,000				152,961				(187,511	)			(150	)			144,300
		Syndicated Loan							17,085				—				(1,063	)			(99	)			15,923
		EBL							—				43,485				—				(3,392	)			40,093

Guarantees provided to associates or joint ventures

Guarantees provided to associates or joint ventures as of December 31, 2020 are as follows:

Primary guarantor		Principal obligor		Type of guarantees		Credit limit				Guarantee
						In millions of won and thousands of foreign currencies
Korea Electric Power Corporation		Shuweihat Asia Operation & Maintenance Company		Performance guarantees			USD 11,000			Shuweihat Asia Power Investment B.V.
Korea Electric Power Corporation		Rabigh Operation & Maintenance Company Limited		Performance guarantees and others			USD 1,387			Rabigh Electricity Company
Korea Electric Power Corporation		Nghi Son 2 Power LLC		Performance guarantees			USD 70,000			SMBC Ho Chi Minh and others
				Debt guarantees			USD 285,000			SMBC Singapore
Korea Electric Power Corporation		Barakah One Company		Debt guarantees			USD 900,000			Export-Import Bank of Korea and others
				Performance guarantees and others			USD 4,439,920
Korea Electric Power Corporation		RE Holiday Holdings LLC		Performance guarantees(*12)			USD 206,494			EPS Renewables Holdings, LLC, Santander Bank and others
Korea Electric Power Corporation		RE Pioneer Holdings LLC		Performance guarantees			USD 158,718			EPS Renewables Holdings, LLC, Santander Bank and others
Korea Electric Power Corporation		RE Barren Ridge 1 Holdings LLC		Performance guarantees(*12)			USD 135,783			Firstar Development, LLC, Santander Bank and others
Korea Electric Power Corporation		Rabigh Electricity Company		Performance guarantees			SAR 6,508			Hana Bank
				Performance guarantees			SAR 68,054
Korea Electric Power Corporation		Shuweihat Asia Power Investment B.V.		Performance guarantees			USD 100,000			ING Bank
Korea Electric Power Corporation		Amman Asia Electric Power Company		Performance guarantees			USD 16,800			Shinhan Bank
Korea Electric Power Corporation		Pulau Indah Power Plant Sdn. Bhd.		Performance guarantees			MYR 7,500			Maybank
Korea Western Power Co., Ltd.		Cheongna Energy Co., Ltd.		Collateralized money invested			KRW 4,940			Kookmin Bank and others
				Guarantees for supplemental funding and others(*1)			—
Korea Western Power Co., Ltd.		Xe-Pian Xe-Namnoy Power Co., Ltd.		Payment guarantees for business reserve			USD 2,500			Krung Thai Bank
				Collateralized money invested			KRW 64,570
				Impounding bonus guarantees			USD 5,000			SK E&C
Korea Western Power Co., Ltd.		Rabigh Operation & Maintenance Company Limited		Performance guarantees and others			SAR 11,200			National Bank of Kuwait
Korea Western Power Co., Ltd.		Daegu Photovoltaic Co., Ltd.		Collateralized money invested			KRW 2,066			Korea Development Bank
Korea Western Power Co., Ltd.		Dongducheon Dream Power Co., Ltd.		Collateralized money invested(*7)			KRW 45,041			Kookmin Bank and others
				Debt guarantees			KRW 20,300			BNK Securities
Korea Western Power Co., Ltd.		PT. Mutiara Jawa		Collateralized money invested			KRW 1,780			Woori Bank
Korea Western Power Co., Ltd.		Haeng Bok Do Si Photovoltaic Power Co., Ltd.		Collateralized money invested			KRW 210			Nonghyup Bank
Korea Western Power Co., Ltd.		Shin Pyeongtaek Power Co., Ltd.		Collateralized money invested			KRW 69,591			Kookmin Bank
				Guarantees for supplemental funding(*1)			—			Kookmin Bank and others
Korea Western Power Co., Ltd.		Haemodum Solar Co., Ltd.		Collateralized money invested			KRW 3,065			Nonghyup Bank
Korea Western Power Co., Ltd.		Sam-Yang Photovoltaic Power Co., Ltd.		Collateralized money invested			KRW 5,535			Korea Development Bank and others
				Guarantees for supplemental funding(*1)			—
Korea Western Power Co., Ltd.		Muan Solar Park Co., Ltd.		Collateralized money invested			KRW 4,180			IBK and others
Korea Western Power Co., Ltd.		Anjwa Smart Farm & Solar City Co., Ltd.		Collateralized money invested			KRW 5,510			Hana Bank and others
				Guarantees for supplemental funding(*1)			—
Korea East-West Power Co., Ltd.		Busan Shinho Solar Power Co., Ltd.		Collateralized money invested			KRW 5,378			Korea Development Bank and others
Korea East-West Power Co., Ltd.		Seokmun Energy Co., Ltd.		Collateralized money invested			KRW 14,814			Kookmin Bank and others
				Guarantees for supplemental funding (*1)			—
Korea East-West Power Co., Ltd.		Chun-cheon Energy Co., Ltd.		Collateralized money invested			KRW 27,518			Kookmin Bank and others
				Guarantees for supplemental funding (*1)			KRW 90,800
Korea East-West Power Co., Ltd.		Honam Wind Power Co., Ltd.		Collateralized money invested			KRW 3,887			Shinhan Bank and others
				Guarantees for supplemental funding(*1)			—
Korea East-West Power Co., Ltd.		GS Donghae Electric Power Co., Ltd.		Collateralized money invested			KRW 244,426			Korea Development Bank and others
				Guarantees for supplemental funding(*1)			—
Korea East-West Power Co., Ltd.		Yeonggwangbaeksu Wind Power Co., Ltd.		Collateralized money invested			KRW 3,124			Kookmin Bank and others
Korea East-West Power Co., Ltd.		Yeonggwang Wind Power Co., Ltd.		Collateralized money invested			KRW 17,256			KDB Capital Corporation and others
				Guarantees for supplemental funding(*1)			—
Korea East-West Power Co., Ltd.		Daesan Green Energy Co., Ltd.		Collateralized money invested			KRW 22,552			IBK
				Guarantees for supplemental funding(*1)			KRW 18,989
Korea East-West Power Co., Ltd.		Taebaek Gadeoksan Wind Power Co., Ltd.		Collateralized money invested			KRW 13,362			Samsung Fire & Marine Insurance Co., Ltd. and others
Korea East-West Power Co., Ltd.		PT. Tanjung Power Indonesia		Debt guarantees			USD 24,544			Sumitomo mitsui banking
				Other guarantees			USD 3,150			PT Adaro Indonesia
				Guarantees for supplemental funding(*1)			—			Sumitomo mitsui banking and others
				Collateralized money invested			KRW 33,063			MUFG and others
Korea East-West Power Co., Ltd.		South Jamaica Power Company Limited		Performance guarantees			USD 14,400			Societe Generale
				Collateralized money invested			KRW 31,897			JCSD Trustee Services Limited and others
EWP Barbados 1 SRL		South Jamaica Power Company Limited		Guarantees for supplemental funding(*1,3)			—			JCSD Trustee Services Limited and others
Korea East-West Power Co., Ltd.		DE Energia SpA		Collateralized money invested			KRW 8,187			Mirae Asset Daewoo Co., Ltd. and others
				Debt guarantees			USD 5,728
				Payment guarantees(*10)			USD 1,066			Hana Bank
Korea East-West Power Co., Ltd.		Bitsolar Energy Co., Ltd.		Collateralized money invested			KRW 352			Mirae Asset Life Insurance Co., Ltd. and others
Korea Southern Power Co., Ltd.		KNH Solar Co., Ltd.		Collateralized money invested			KRW 2,436			Shinhan Bank and others
				Performance guarantees and guarantees for supplemental funding (*1)			—
Korea Southern Power Co., Ltd.		Daeryun Power Co., Ltd.		Collateralized money invested			KRW 26,353			Korea Development Bank and others
				Guarantees for supplemental funding and others(*1)			KRW 8,000
Korea Southern Power Co., Ltd.		Daegu Green Power Co., Ltd.		Collateralized money invested			KRW 23,045			Shinhan Bank and others
				Performance guarantees			—
Korea Southern Power Co., Ltd.		Kelar S.A.		Performance guarantees			USD 57,987			Hana Bank, MUFG
Korea Southern Power Co., Ltd.		Daehan Wind Power PSC		Performance guarantees			USD 3,600			Shinhan Bank
				Payment guarantees(*9)			USD 1,898			Hana Bank
Korea Southern Power Co., Ltd.		Pyeongchang Wind Power Co., Ltd.		Collateralized money invested			KRW 5,027			Woori Bank and Shinhan Bank and others
				Performance guarantees			—
Korea Southern Power Co., Ltd.		Taebaek Guinemi Wind Power Co., Ltd.		Collateralized money invested			KRW 3,087			IBK
Korea Southern Power Co., Ltd.		Jeongam Wind Power Co., Ltd.		Performance guarantees			—			SK Securities.Co., LTD., KDB Capital Corporation, and others
				Collateralized money invested			KRW 4,620
Korea Southern Power Co., Ltd.		Samcheok Eco Materials Co., Ltd.		Payment guarantees(*4)			—			SEM Investment Co., Ltd.
Korea Southern Power Co., Ltd.		Solaseado Solar Power Co., Ltd.		Collateralized money invested			KRW 7,379			Kookmin Bank and others
Korea Southern Power Co., Ltd.		Naepo Green Energy Co., Ltd.		Collateralized money invested(*11)			—			IBK and others
				Guarantees for supplemental funding and others(*1)			KRW 30,000
				Guarantees for other supplemental funding and performance guarantees(*1)			—
KOSPO Chile SpA		Kelar S.A.		Collateralized money invested			KRW 71,449			Export-Import Bank of Korea and others
KOSPO Chile SpA		Chester Solar I SpA		Collateralized money invested			KRW 1,621			IBK
KOSPO Chile SpA		Chester Solar IV SpA		Collateralized money invested			KRW 1,064
KOSPO Chile SpA		Chester Solar V SpA		Collateralized money invested			KRW 277
KOSPO Chile SpA		Diego de Almagro Solar Spa		Collateralized money invested			KRW 1,490
KOSPO Chile SpA		Laurel SpA		Collateralized money invested			KRW 1,092
Korea Midland Power Co., Ltd.		YeongGwang Yaksu Wind Electric Co., Ltd.		Collateralized money invested			KRW 312			IBK and others
Korea Midland Power Co., Ltd.		Hyundai Green Power Co., Ltd.		Collateralized money invested			KRW 132,774			Korea Development Bank and others
Korea Midland Power Co., Ltd.		PT. Cirebon Electric Power		Debt guarantees			USD 10,038			Mizuho Bank
Korea Midland Power Co., Ltd.		PT. Wampu Electric Power		Debt guarantees			USD 5,271			SMBC
Korea Midland Power Co., Ltd.		Green Energy Electricity Generation Co., Ltd.		Collateralized money invested			KRW 25			IBK
				Guarantees for supplemental funding and others(*1)			—			IBK and others
Korea Midland Power Co., Ltd.		Yaksu ESS Co., Ltd.		Collateralized money invested			KRW 454			IBK
Korea Midland Power Co., Ltd.		Namjeongsusang Solar Power Operation Co., Ltd.		Collateralized money invested			KRW 103			IBK
Korea Midland Power Co., Ltd.		Gwangbaek Solar Power Investment Co., Ltd.		Collateralized money invested			KRW 4,682			Kyobo Life Insurance Co., Ltd. and others
Korea Midland Power Co., Ltd.		Muan Sunshine Solar Power Plant Co., Ltd.		Collateralized money invested			KRW 1,096			IBK
Korea Midland Power Co., Ltd.		Goesan Solar Park Co., Ltd.		Collateralized money invested			KRW 1,684			IBK
Korea Midland Power Co., Ltd.		Bitgoel Eco Energy Co., Ltd.		Collateralized money invested			KRW 29			IBK and others
				Guarantees for supplemental funding(*1)			—
Korea South-East Power Co., Ltd.		DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.)		Collateralized money invested(*5)			—			IBK
				Guarantees for supplemental funding and others(*1,6)			KRW 76,800			NH investment & securities Co., Ltd. and others
Korea South-East Power Co., Ltd.		S-Power Co., Ltd.		Collateralized money invested			KRW 110,292			Korea Development Bank and others
Korea South-East Power Co., Ltd.		RES Technology AD		Collateralized money invested			KRW 15,930			UniCredit Bulbank and others
Korea South-East Power Co., Ltd.		ASM-BG Investicii AD		Collateralized money invested			KRW 18,200			UniCredit Bulbank and others
Korea South-East Power Co., Ltd.		Expressway Solar- light Power Generation Co., Ltd.		Guarantees for supplemental funding(*1,2)			KRW 2,500			Woori Bank
Korea South-East Power Co., Ltd.		Goseong Green Power Co., Ltd.		Collateralized money invested			KRW 2,186			Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd.		Gangneung Eco Power Co., Ltd.		Collateralized money invested			KRW 2,368			Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd.		PND solar Co., Ltd.		Collateralized money invested			KRW 1,149			IBK
Korea South-East Power Co., Ltd.		Hyundai Eco Energy Co., Ltd.		Collateralized money invested			KRW 4,250			Samsung Life Insurance and others
Korea South-East Power Co., Ltd.		Jaeun Resident Wind Power Plant Co., Ltd.		Collateralized money invested			KRW 2,195			IBK
Korea South-East Power Co., Ltd.		Cheongsong Myeonbongsan Wind Power Plant Co., Ltd.		Collateralized money invested			KRW 4,124			Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd.		Youngam Solar Power Co., Ltd.		Collateralized money invested			KRW 6,042			Kookmin Bank and others
Korea South-East Power Co., Ltd.		Samsu Wind Power Co., Ltd.		Collateralized money invested			KRW 2,607			Shinhan Bank and others
Korea South-East Power Co., Ltd.		Saemangeum Heemang Photovoltaic Co., Ltd.		Collateralized money invested			KRW 11,022			Woori Bank and others
Korea Hydro & Nuclear Power Co., Ltd.		Noeul Green Energy Co., Ltd.		Collateralized money invested			KRW 4,197			Hana Bank and others
Korea Hydro & Nuclear Power Co., Ltd.		Busan Green Energy Co., Ltd.		Collateralized money invested			KRW 8,778			Shinhan Bank and others
Korea Hydro & Nuclear Power Co., Ltd.		Cheong-Song Noraesan Wind Power Co., Ltd.		Collateralized money invested			KRW 3,453			Woori Bank and others
KEPCO Plant Service & Engineering Co., Ltd.		Incheon New Power Co., Ltd.		Collateralized money invested(*8)			—			Shinhan Bank
				Guarantees for supplemental funding(*1)			—

(*1) The Company guarantees to provide supplemental funding for business with respect to excessive business expenses or insufficient repayment of borrowings.

(*2) The Company has granted the right to Hana Financial Investment Co., Ltd., as an agent for the creditors to Expressway Solar-light Power Generation Co., Ltd. (“ESPG”), to the effect that in the event of acceleration of ESPG’s payment obligations under certain borrowings to such creditors, Hana Financial may demand the Company to dispose of shares in ESPG held by the Company and apply the resulting proceeds to repayment of ESPG’s obligations.

(*3) This includes a guarantee for the shareholder’s capital payment in connection with the business of 190MW gas complex thermal power plant in Jamaica. EWP Barbados 1 SRL’s capital contribution amount is USD 18,400 thousand and there is no residual guarantee amount among total collateral limit.

(*4) Controlling and non-controlling common shareholders of Samcheok Eco Materials Co., Ltd. have pre-emption rights, if preferred shareholders intend to sell their shares until December 26, 2023. The promised yield of the preferred stock is guaranteed through the transaction. As of December 31, 2020, the Company has recognized derivative liabilities of ￦6,760 million related to the guarantee. Meanwhile, the Company is under an agreement with Samcheok Eco Materials Co., Ltd. that if a damage incurs related to the fulfillment of obligations pursuant to the mandatory contract of coal ash supply, compensation for the expected amount of the damage should be settled.

(*5) The Company recognized an impairment loss on all of the equity securities of DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.) before the prior year, and the acquisition cost of the securities provided as collateral is ￦47,067 million.

(*6) Pursuant to the guarantee agreement, the Company recognized other provisions of ￦26,772 million as the possibility of economic benefit outflow to fulfill the obligation was deemed probable and the amount could be reasonably estimated.

(*7) The common stocks of Dongducheon Dream Power Co., Ltd. held by the Company were pledged as collateral.

(*8) The Company recognized an impairment loss on all of the equity securities of Incheon New Power Co., Ltd. during the year ended December 31, 2019, and the acquisition cost of the securities provided as collateral is ￦461 million.

(*9) The Company provided a payment guarantee to Daehan Wind Power PSC for opening LC for Debt Service Reserve Account (DSRA).

(*10) This includes a guarantee related to LC for debt repayment allowance provided to DE Energia SpA, a joint venture of the Company.

(*11) The Company recognized an impairment loss on all of the equity securities of Naepo Green Energy Co., Ltd. before the prior year, and the acquisition cost of the securities provided as collateral is ￦29,200 million.

(*12) The credit limits of guarantees to RE Holiday Holdings LLC and RE Barren Ridge 1 Holdings LLC include the credit limits of guarantees to their subsidiaries.

Derivatives transactions with related parties

Derivatives transactions with related parties as of December 31, 2020 are as follows:

(i) Currency Swap

Counterparty		Contract year								Contract Amount								Contract interest rate per annum												Contract exchange rate
										Pay				Receive				Pay (%)				Receive (%)
		In millions of won and thousands of foreign currencies except contract exchange rate information
Korea Development Bank			2019~2024			￦					177,600				USD 150,000				1.24	%			2.50	%		￦					1,184.00
			2020~2025								241,320				USD 200,000				0.54	%			1.13	%							1,206.60
			2015~2025								111,190				USD 100,000				2.62	%			3.25	%							1,111.90
			2017~2027								111,610				USD 100,000				2.31	%			3.13	%							1,116.10
			2018~2028								108,600				HKD 800,000				2.69	%			3.35	%							135.75
			2018~2023								170,280				USD 150,000				2.15	%			3.75	%							1,135.20
			2019~2027								119,978				CHF 100,000				1.43	%			0.05	%							1,199.78
			2020~2026								118,910				USD 100,000				0.61	%			1.00	%							1,189.10
			2016~2021								121,000				USD 100,000				2.15	%			2.50	%							1,210.00
			2019~2022								112,650				USD 100,000				1.80	%			3.38	%							1,126.50
			2018~2023								320,880				USD 300,000				2.03	%			3.75	%							1,069.60
			2019~2022								117,340				USD 100,000				1.06	%			2.38	%							1,173.40
			2018~2021								212,960				USD 200,000				2.10	%			3.00	%							1,064.80
			2017~2022								113,300				USD 100,000				1.94	%			2.63	%							1,133.00
			2018~2023								169,335				USD 150,000				2.26	%			3.88	%							1,128.90
			2020~2025								122,780				USD 100,000				0.93	%			1.75	%							1,227.80

(ii) Currency forward

Counterparty		Contract date				Maturity date								Contract amounts												Contract exchange rate
														Pay				Receive
		In millions of won and thousands of USD except contract exchange rate information
Korea Development Banko			2017.12.27				2021.07.12			￦					104,849				USD 100,000			￦					1,048.49
			2020.12.18				2021.01.28								5,469				USD 5,000								1,093.75
			2020.12.30				2021.02.19								5,436				USD 5,000								1,087.16
			2020.12.15				2021.01.05								1,092				USD 1,000								1,092.10
			2020.12.29				2021.01.05								6,791				USD 6,200								1,095.35

Salaries and other compensations to the key members of management of the Company

The Company recorded salaries and other compensations related to the key management personnel as follows:

Type						2018				2019				2020
						In millions of won
Salaries		￦					1,106				1,315				1,295
Retirement benefits							24				31				58
		￦					1,130				1,346				1,353

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The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
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-Publisher FASB
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-Publisher FASB
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-Name Accounting Standards Codification
-Topic 850
-URI http://asc.fasb.org/topic&trid=2122745

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 850
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