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Guarantees provided between the related parties (Details)
ر.س in Thousands, $ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2019
KRW (₩)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
SAR (ر.س)
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V.
Name of Principal obligor Shuweihat Asia Operation & Maintenance Company Shuweihat Asia Operation & Maintenance Company Shuweihat Asia Operation & Maintenance Company
Amount of guarantees | $   $ 11,000  
Performance guarantees and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company
Name of Principal obligor Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited
Amount of guarantees | $   $ 1,387  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee SMBC Ho Chi Minh and others SMBC Ho Chi Minh and others SMBC Ho Chi Minh and others
Name of Principal obligor Nghi Son 2 Power LLC Nghi Son 2 Power LLC Nghi Son 2 Power LLC
Amount of guarantees | $   $ 70,000  
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Name of Principal obligor Barakah One Company Barakah One Company Barakah One Company
Amount of guarantees | $   $ 900,000  
Performance guarantees and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Name of Principal obligor Barakah One Company Barakah One Company Barakah One Company
Amount of guarantees | $   $ 4,430,240  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others
Name of Principal obligor RE Holiday Holdings LLC RE Holiday Holdings LLC RE Holiday Holdings LLC
Amount of guarantees | $   $ 223,000  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others
Name of Principal obligor RE Pioneer Holdings LLC RE Pioneer Holdings LLC RE Pioneer Holdings LLC
Amount of guarantees | $   $ 170,000  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others EPS Renewables Holdings, LLC, Santander Bank and others
Name of Principal obligor RE Barren Ridge 1 Holdings LLC RE Barren Ridge 1 Holdings LLC RE Barren Ridge 1 Holdings LLC
Amount of guarantees | $   $ 149,000  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Hana Bank Hana Bank Hana Bank
Name of Principal obligor Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company
Amount of guarantees | ر.س     ر.س 6,508
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee Hana Bank Hana Bank Hana Bank
Name of Principal obligor Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company
Amount of guarantees | ر.س     ر.س 80,000
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Guarantee ING Bank ING Bank ING Bank
Name of Principal obligor Shuweihat Asia Power Investment B.V. Amman Asia Electric Power Company Shuweihat Asia Power Investment B.V. Amman Asia Electric Power Company Shuweihat Asia Power Investment B.V. Amman Asia Electric Power Company
Amount of guarantees | $   $ 100,000  
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others
Name of Principal obligor Cheongna Energy Co., Ltd. Cheongna Energy Co., Ltd. Cheongna Energy Co., Ltd.
Amount of guarantees ₩ 1,411    
Guarantees for supplemental funding and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. [1] Korea Western Power Co., Ltd. [1] Korea Western Power Co., Ltd. [1]
Name of Guarantee Hana Bank and others [1] Hana Bank and others [1] Hana Bank and others [1]
Name of Principal obligor Cheongna Energy Co., Ltd. [1] Cheongna Energy Co., Ltd. [1] Cheongna Energy Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Payment guarantees for business reserve      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Krung Thai Bank Krung Thai Bank Krung Thai Bank
Name of Principal obligor Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd.
Amount of guarantees | $   $ 2,500  
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Krung Thai Bank Krung Thai Bank Krung Thai Bank
Name of Principal obligor Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd.
Amount of guarantees ₩ 72,935    
Impounding bonus guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee SK E&C SK E&C SK E&C
Name of Principal obligor Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd.
Amount of guarantees | $   $ 5,000  
Performance guarantees and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Saudi Arabia British Bank Saudi Arabia British Bank Saudi Arabia British Bank
Name of Principal obligor Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited
Amount of guarantees | ر.س     ر.س 5,600
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Korea Development Bank Korea Development Bank Korea Development Bank
Name of Principal obligor Daegu Photovoltaic Co., Ltd. Daegu Photovoltaic Co., Ltd. Daegu Photovoltaic Co., Ltd.
Amount of guarantees ₩ 2,060    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. [2] Korea Western Power Co., Ltd. [2] Korea Western Power Co., Ltd. [2]
Name of Guarantee Kookmin Bank and others [2] Kookmin Bank and others [2] Kookmin Bank and others [2]
Name of Principal obligor Dongducheon Dream Power Co., Ltd. [2] Dongducheon Dream Power Co., Ltd. [2] Dongducheon Dream Power Co., Ltd. [2]
Amount of guarantees ₩ 41,531 [2]    
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee BNK Securities and others BNK Securities and others BNK Securities and others
Name of Principal obligor Dongducheon Dream Power Co., Ltd. Dongducheon Dream Power Co., Ltd. Dongducheon Dream Power Co., Ltd.
Amount of guarantees ₩ 20,300    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Woori Bank Woori Bank Woori Bank
Name of Principal obligor PT. Mutiara Jawa PT. Mutiara Jawa PT. Mutiara Jawa
Amount of guarantees ₩ 1,438    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank
Name of Principal obligor Heang Bok Do Si Photovoltaic Power Co., Ltd. Heang Bok Do Si Photovoltaic Power Co., Ltd. Heang Bok Do Si Photovoltaic Power Co., Ltd.
Amount of guarantees ₩ 215    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Guarantee Kookmin Bank Kookmin Bank Kookmin Bank
Name of Principal obligor Shin Pyeongtaek Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd.
Amount of guarantees ₩ 66,956    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Western Power Co., Ltd. [1] Korea Western Power Co., Ltd. [1] Korea Western Power Co., Ltd. [1]
Name of Guarantee Kookmin Bank and others [1] Kookmin Bank and others [1] Kookmin Bank and others [1]
Name of Principal obligor Shin Pyeongtaek Power Co., Ltd. [1] Shin Pyeongtaek Power Co., Ltd. [1] Shin Pyeongtaek Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Name of Principal obligor Busan Shinho Solar Power Co., Ltd. Busan Shinho Solar Power Co., Ltd. Busan Shinho Solar Power Co., Ltd.
Amount of guarantees ₩ 5,045    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Name of Principal obligor Seokmun Energy Co., Ltd. Seokmun Energy Co., Ltd. Seokmun Energy Co., Ltd.
Amount of guarantees ₩ 17,342    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee Kookmin Bank and others [1] Kookmin Bank and others [1] Kookmin Bank and others [1]
Name of Principal obligor Seokmun Energy Co., Ltd. [1] Seokmun Energy Co., Ltd. [1] Seokmun Energy Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Name of Principal obligor Chun-cheon Energy Co., Ltd. Chun-cheon Energy Co., Ltd. Chun-cheon Energy Co., Ltd.
Amount of guarantees ₩ 34,872    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee Kookmin Bank and others [1] Kookmin Bank and others [1] Kookmin Bank and others [1]
Name of Principal obligor Chun-cheon Energy Co., Ltd. [1] Chun-cheon Energy Co., Ltd. [1] Chun-cheon Energy Co., Ltd. [1]
Amount of guarantees ₩ 20,000 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Name of Principal obligor Honam Wind Power Co., Ltd. Honam Wind Power Co., Ltd. Honam Wind Power Co., Ltd.
Amount of guarantees ₩ 4,375    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee Shinhan Bank and others [1] Shinhan Bank and others [1] Shinhan Bank and others [1]
Name of Principal obligor Honam Wind Power Co., Ltd. [1] Honam Wind Power Co., Ltd. [1] Honam Wind Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Name of Principal obligor GS Donghae Electric Power Co., Ltd. GS Donghae Electric Power Co., Ltd. GS Donghae Electric Power Co., Ltd.
Amount of guarantees ₩ 255,983    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee Korea Development Bank and others [1] Korea Development Bank and others [1] Korea Development Bank and others [1]
Name of Principal obligor GS Donghae Electric Power Co., Ltd. [1] GS Donghae Electric Power Co., Ltd. [1] GS Donghae Electric Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Name of Principal obligor Yeonggwangbaeksu Wind Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd.
Amount of guarantees ₩ 3,040    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee KDB Capital Corporation and others KDB Capital Corporation and others KDB Capital Corporation and others
Name of Principal obligor Yeonggwang Wind Power Co., Ltd. Yeonggwang Wind Power Co., Ltd. Yeonggwang Wind Power Co., Ltd.
Amount of guarantees ₩ 17,627    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee KDB Capital Corporation and others [1] KDB Capital Corporation and others [1] KDB Capital Corporation and others [1]
Name of Principal obligor Yeonggwang Wind Power Co., Ltd. [1] Yeonggwang Wind Power Co., Ltd. [1] Yeonggwang Wind Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Daesan Green Energy Co., Ltd. Daesan Green Energy Co., Ltd. Daesan Green Energy Co., Ltd.
Amount of guarantees ₩ 17,182    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee IBK [1] IBK [1] IBK [1]
Name of Principal obligor Daesan Green Energy Co., Ltd. [1] Daesan Green Energy Co., Ltd. [1] Daesan Green Energy Co., Ltd. [1]
Amount of guarantees ₩ 18,989 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Samsung Fire & Marine Insurance Co., Ltd. and others Samsung Fire & Marine Insurance Co., Ltd. and others Samsung Fire & Marine Insurance Co., Ltd. and others
Name of Principal obligor Taebaek Gadeoksan Wind Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd.
Amount of guarantees ₩ 7,846    
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Sumitomo mitsui banking Sumitomo mitsui banking Sumitomo mitsui banking
Name of Principal obligor PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia
Amount of guarantees | $   $ 24,544  
Other guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee PT Adaro Indonesia PT Adaro Indonesia PT Adaro Indonesia
Name of Principal obligor PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia
Amount of guarantees | $   $ 3,150  
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1] Korea East-West Power Co., Ltd. [1]
Name of Guarantee Sumitomo mitsui banking and others [1] Sumitomo mitsui banking and others [1] Sumitomo mitsui banking and others [1]
Name of Principal obligor PT. Tanjung Power Indonesia [1] PT. Tanjung Power Indonesia [1] PT. Tanjung Power Indonesia [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee MUFG and others MUFG and others MUFG and others
Name of Principal obligor PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia
Amount of guarantees ₩ 34,327    
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Societe Generale Societe Generale Societe Generale
Name of Principal obligor South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited
Amount of guarantees | $   $ 14,400  
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee JCSD Trustee Services Limited and others JCSD Trustee Services Limited and others JCSD Trustee Services Limited and others
Name of Principal obligor South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited
Amount of guarantees ₩ 13,863    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor EWP Barbados 1 SRL [1],[3] EWP Barbados 1 SRL [1],[3] EWP Barbados 1 SRL [1],[3]
Name of Guarantee JCSD Trustee Services Limited and others [1],[3] JCSD Trustee Services Limited and others [1],[3] JCSD Trustee Services Limited and others [1],[3]
Name of Principal obligor South Jamaica Power Company Limited [1],[3] South Jamaica Power Company Limited [1],[3] South Jamaica Power Company Limited [1],[3]
Amount of guarantees ₩ 0 [1],[3]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others
Name of Principal obligor DE Energia SpA DE Energia SpA DE Energia SpA
Amount of guarantees ₩ 8,665    
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Guarantee Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others
Name of Principal obligor DE Energia SpA DE Energia SpA DE Energia SpA
Amount of guarantees ₩ 6,632    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Shinhan Bank and Kyobo Life Insurance Co., Ltd. Shinhan Bank and Kyobo Life Insurance Co., Ltd. Shinhan Bank and Kyobo Life Insurance Co., Ltd.
Name of Principal obligor KNH Solar Co., Ltd. KNH Solar Co., Ltd. KNH Solar Co., Ltd.
Amount of guarantees ₩ 2,382    
Performance guarantees and guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1]
Name of Guarantee Shinhan Bank and Kyobo Life Insurance Co., Ltd. [1] Shinhan Bank and Kyobo Life Insurance Co., Ltd. [1] Shinhan Bank and Kyobo Life Insurance Co., Ltd. [1]
Name of Principal obligor KNH Solar Co., Ltd. [1] KNH Solar Co., Ltd. [1] KNH Solar Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Name of Principal obligor Daeryun Power Co., Ltd. Daeryun Power Co., Ltd. Daeryun Power Co., Ltd.
Amount of guarantees ₩ 26,247    
Guarantees for supplemental funding and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1]
Name of Guarantee Korea Development Bank and others [1] Korea Development Bank and others [1] Korea Development Bank and others [1]
Name of Principal obligor Daeryun Power Co., Ltd. [1] Daeryun Power Co., Ltd. [1] Daeryun Power Co., Ltd. [1]
Amount of guarantees ₩ 8,000 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Name of Principal obligor Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd.
Amount of guarantees ₩ 22,824    
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Name of Principal obligor Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd.
Amount of guarantees ₩ 0    
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Hana Bank, MUFG Hana Bank, MUFG Hana Bank, MUFG
Name of Principal obligor Kelar S.A Kelar S.A Kelar S.A
Amount of guarantees | $   $ 61,692  
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4]
Name of Guarantee Shinhan Bank [4] Shinhan Bank [4] Shinhan Bank [4]
Name of Principal obligor Daehan Wind Power PSC [4] Daehan Wind Power PSC [4] Daehan Wind Power PSC [4]
Amount of guarantees | $   $ 16,000 [4]  
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Shinhan Bank Shinhan Bank Shinhan Bank
Name of Principal obligor Daehan Wind Power PSC Daehan Wind Power PSC Daehan Wind Power PSC
Amount of guarantees | $   $ 3,600  
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4]
Name of Guarantee Shinhan Bank [4] Shinhan Bank [4] Shinhan Bank [4]
Name of Principal obligor Daehan Wind Power PSC [4] Daehan Wind Power PSC [4] Daehan Wind Power PSC [4]
Amount of guarantees | $   $ 240 [4]  
Performance Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4] Korea Southern Power Co., Ltd. [4]
Name of Guarantee Hana Bank [4] Hana Bank [4] Hana Bank [4]
Name of Principal obligor Daehan Wind Power PSC [4] Daehan Wind Power PSC [4] Daehan Wind Power PSC [4]
Amount of guarantees | $   $ 1,898 [4]  
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others
Name of Principal obligor Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd.
Amount of guarantees ₩ 5,877    
Performance guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others
Name of Principal obligor Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd.
Amount of guarantees ₩ 0    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Taebaek Guinemi Wind Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd.
Amount of guarantees ₩ 2,553    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1]
Name of Guarantee IBK [1] IBK [1] IBK [1]
Name of Principal obligor Taebaek Guinemi Wind Power Co., Ltd. [1] Taebaek Guinemi Wind Power Co., Ltd. [1] Taebaek Guinemi Wind Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Guarantees for supplemental funding and performance guaranteeS      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1]
Name of Guarantee SK Securities.Co., LTD., KDB Capital Corporation, and others [1] SK Securities.Co., LTD., KDB Capital Corporation, and others [1] SK Securities.Co., LTD., KDB Capital Corporation, and others [1]
Name of Principal obligor Jeongam Wind Power Co., Ltd. [1] Jeongam Wind Power Co., Ltd. [1] Jeongam Wind Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Guarantee SK Securities.Co., LTD., KDB Capital Corporation, and others SK Securities.Co., LTD., KDB Capital Corporation, and others SK Securities.Co., LTD., KDB Capital Corporation, and others
Name of Principal obligor Jeongam Wind Power Co., Ltd. Jeongam Wind Power Co., Ltd. Jeongam Wind Power Co., Ltd.
Amount of guarantees ₩ 4,437    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1] Korea Southern Power Co., Ltd. [1]
Name of Guarantee Shinhan Bank and others [1] Shinhan Bank and others [1] Shinhan Bank and others [1]
Name of Principal obligor Taebaek Wind Power Co., Ltd [1] Taebaek Wind Power Co., Ltd [1] Taebaek Wind Power Co., Ltd [1]
Amount of guarantees ₩ 0 [1]    
Payment guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Southern Power Co., Ltd. [2],[5] Korea Southern Power Co., Ltd. [2],[5] Korea Southern Power Co., Ltd. [2],[5]
Name of Guarantee SEM Investment Co., Ltd. [2],[5] SEM Investment Co., Ltd. [2],[5] SEM Investment Co., Ltd. [2],[5]
Name of Principal obligor Samcheok Eco Materials Co., Ltd. [2],[5] Samcheok Eco Materials Co., Ltd. [2],[5] Samcheok Eco Materials Co., Ltd. [2],[5]
Amount of guarantees ₩ 0 [2],[5]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Name of Principal obligor Kelar S.A. Kelar S.A. Kelar S.A.
Amount of guarantees ₩ 70,462    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee IBK IBK IBK
Name of Principal obligor Chester Solar ISpA Chester Solar ISpA Chester Solar ISpA
Amount of guarantees ₩ 1,157    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee IBK IBK IBK
Name of Principal obligor Chester Solar IV SpA Chester Solar IV SpA Chester Solar IV SpA
Amount of guarantees ₩ 672    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee IBK IBK IBK
Name of Principal obligor Chester Solar V SpA Chester Solar V SpA Chester Solar V SpA
Amount of guarantees ₩ 146    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee IBK IBK IBK
Name of Principal obligor Diego de Almagro Solar Spa Diego de Almagro Solar Spa Diego de Almagro Solar Spa
Amount of guarantees ₩ 1,035    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Kospo Chile SpA Kospo Chile SpA Kospo Chile SpA
Name of Guarantee IBK IBK IBK
Name of Principal obligor Laurel SpA Laurel SpA Laurel SpA
Amount of guarantees ₩ 595    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee IBK and others IBK and others IBK and others
Name of Principal obligor YeongGwang Yaksu Wind Electric. Co., Ltd. YeongGwang Yaksu Wind Electric. Co., Ltd. YeongGwang Yaksu Wind Electric. Co., Ltd.
Amount of guarantees ₩ 386    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Name of Principal obligor Hyundai Green Power Co., Ltd. Hyundai Green Power Co., Ltd. Hyundai Green Power Co., Ltd.
Amount of guarantees ₩ 124,253    
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee Mizuho Bank Mizuho Bank Mizuho Bank
Name of Principal obligor PT. Cirebon Electric Power PT. Cirebon Electric Power PT. Cirebon Electric Power
Amount of guarantees | $   $ 11,248  
Debt guarantees      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee SMBC SMBC SMBC
Name of Principal obligor PT Wampu Electric Power PT Wampu Electric Power PT Wampu Electric Power
Amount of guarantees | $   $ 4,854  
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Green Energy Electricity Generation Co., Ltd. Green Energy Electricity Generation Co., Ltd. Green Energy Electricity Generation Co., Ltd.
Amount of guarantees ₩ 163    
Guarantees for supplemental funding and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. [1] Korea Midland Power Co., Ltd. [1] Korea Midland Power Co., Ltd. [1]
Name of Guarantee IBK and others [1] IBK and others [1] IBK and others [1]
Name of Principal obligor Green Energy Electricity Generation Co., Ltd. [1] Green Energy Electricity Generation Co., Ltd. [1] Green Energy Electricity Generation Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor YaksuESS Co., Ltd YaksuESS Co., Ltd YaksuESS Co., Ltd
Amount of guarantees ₩ 516    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Namjeongsusang Solar Power Operatin Co., Ltd. Namjeongsusang Solar Power Operatin Co., Ltd. Namjeongsusang Solar Power Operatin Co., Ltd.
Amount of guarantees ₩ 812    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Gwangbaek Solar Power Investment Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd.
Amount of guarantees ₩ 2,054    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. [6] Korea South-East Power Co., Ltd. [6] Korea South-East Power Co., Ltd. [6]
Name of Guarantee IBK [6] IBK [6] IBK [6]
Name of Principal obligor Hyundai Energy Co., Ltd. [6] Hyundai Energy Co., Ltd. [6] Hyundai Energy Co., Ltd. [6]
Amount of guarantees ₩ 0 [6]    
Guarantees for supplemental funding and others      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. [1],[7] Korea South-East Power Co., Ltd. [1],[7] Korea South-East Power Co., Ltd. [1],[7]
Name of Guarantee NH investment & securities Co., Ltd. and others [1],[7] NH investment & securities Co., Ltd. and others [1],[7] NH investment & securities Co., Ltd. and others [1],[7]
Name of Principal obligor Hyundai Energy Co., Ltd. [1],[7] Hyundai Energy Co., Ltd. [1],[7] Hyundai Energy Co., Ltd. [1],[7]
Amount of guarantees ₩ 76,800 [1],[7]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Name of Principal obligor S-Power Co., Ltd. S-Power Co., Ltd. S-Power Co., Ltd.
Amount of guarantees ₩ 115,784    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others
Name of Principal obligor RES Technology AD RES Technology AD RES Technology AD
Amount of guarantees ₩ 16,248    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others
Name of Principal obligor ASM-BG Investicii AD ASM-BG Investicii AD ASM-BG Investicii AD
Amount of guarantees ₩ 19,376    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. [1],[8] Korea South-East Power Co., Ltd. [1],[8] Korea South-East Power Co., Ltd. [1],[8]
Name of Guarantee Woori Bank [1],[8] Woori Bank [1],[8] Woori Bank [1],[8]
Name of Principal obligor Expressway Solar-light Power Generation Co., Ltd. [1],[8] Expressway Solar-light Power Generation Co., Ltd. [1],[8] Expressway Solar-light Power Generation Co., Ltd. [1],[8]
Amount of guarantees ₩ 2,500 [1],[8]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Name of Principal obligor Goseong Green Energy Co., Ltd. Goseong Green Energy Co., Ltd. Goseong Green Energy Co., Ltd.
Amount of guarantees ₩ 2,340    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Name of Principal obligor Gangneung Eco Power Co., Ltd. Gangneung Eco Power Co., Ltd. Gangneung Eco Power Co., Ltd.
Amount of guarantees ₩ 2,430    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor PND solar., Ltd. PND solar., Ltd. PND solar., Ltd.
Amount of guarantees ₩ 1,144    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee Samsung Life Insurance and others Samsung Life Insurance and others Samsung Life Insurance and others
Name of Principal obligor Hyundai Eco Energy Co., Ltd. Hyundai Eco Energy Co., Ltd. Hyundai Eco Energy Co., Ltd.
Amount of guarantees ₩ 3,781    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee IBK IBK IBK
Name of Principal obligor Jaeun Resident Wind Power Plant Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd.
Amount of guarantees ₩ 2,198    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Name of Principal obligor Cheongsong Myeonbongsan Wind Power Plant Co., Ltd. Cheongsong Myeonbongsan Wind Power Plant Co., Ltd. Cheongsong Myeonbongsan Wind Power Plant Co., Ltd.
Amount of guarantees ₩ 2,764    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others
Name of Principal obligor Noeul Green Energy Co., Ltd. Noeul Green Energy Co., Ltd. Noeul Green Energy Co., Ltd.
Amount of guarantees ₩ 6,611    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. [1] Korea Hydro & Nuclear Power Co., Ltd. [1] Korea Hydro & Nuclear Power Co., Ltd. [1]
Name of Guarantee Hana Bank and others [1] Hana Bank and others [1] Hana Bank and others [1]
Name of Principal obligor Noeul Green Energy Co., Ltd. [1] Noeul Green Energy Co., Ltd. [1] Noeul Green Energy Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Name of Principal obligor Busan Green Energy Co., Ltd. Busan Green Energy Co., Ltd. Busan Green Energy Co., Ltd.
Amount of guarantees ₩ 10,636    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Guarantee Woori Bank and others Woori Bank and others Woori Bank and others
Name of Principal obligor Cheong-Song Noraesan Wind Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd.
Amount of guarantees ₩ 3,044    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. [1] Korea Hydro & Nuclear Power Co., Ltd. [1] Korea Hydro & Nuclear Power Co., Ltd. [1]
Name of Guarantee Woori Bank and others [1] Woori Bank and others [1] Woori Bank and others [1]
Name of Principal obligor Cheong-Song Noraesan Wind Power Co., Ltd. [1] Cheong-Song Noraesan Wind Power Co., Ltd. [1] Cheong-Song Noraesan Wind Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
Collateralized money invested      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor KEPCO Plant Service & Engineering Co., Ltd. [9] KEPCO Plant Service & Engineering Co., Ltd. [9] KEPCO Plant Service & Engineering Co., Ltd. [9]
Name of Guarantee Shinhan Bank [9] Shinhan Bank [9] Shinhan Bank [9]
Name of Principal obligor Incheon New Power Co., Ltd. [9] Incheon New Power Co., Ltd. [9] Incheon New Power Co., Ltd. [9]
Amount of guarantees ₩ 0 [9]    
Guarantees for supplemental funding      
Disclosure of Guarantees provided between the related parties [Line Items]      
Name of Primary guarantor KEPCO Plant Service & Engineering Co., Ltd. [1] KEPCO Plant Service & Engineering Co., Ltd. [1] KEPCO Plant Service & Engineering Co., Ltd. [1]
Name of Guarantee Shinhan Bank [1] Shinhan Bank [1] Shinhan Bank [1]
Name of Principal obligor Incheon New Power Co., Ltd. [1] Incheon New Power Co., Ltd. [1] Incheon New Power Co., Ltd. [1]
Amount of guarantees ₩ 0 [1]    
[1] The Company guarantees to provide supplemental funding for business with respect to excessive business expenses or insufficient repayment of borrowings
[2] The common stocks of Dongducheon Dream Power Co., Ltd. held by the Company were pledged as collateral.
[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 18,400,000 and there is no residual guarantee amount among total collateral limit.
[4] The Company provided a payment guarantee to Daehan Wind Power PSC for reimbursement of Equity Bridge Loan(EBL), opening LC for Debt Service Reserve Account(DSRA), guarantee for the swap termination costs and others.
[5] 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 23, 2020. And promised yield of the preferred stock is guaranteed through the transaction. As of December 31, 2019, the Company has recognized derivative liabilities of KRW 6,205mllion 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.
[6] The Company recognized an impairment loss on all of the equity securities of Hyundai Energy Co., Ltd. in prior years, and the acquisition cost of the securities provided as collateral is W47,067 million.
[7] Pursuant to the guarantee agreement, the Company recognized other provisions of W28,717 million as the possibility of economic benefit outflow to fulfill the obligation was deemed probable and the amount could be reasonably estimated.
[8] 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.
[9] 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 W461 million.