XML 151 R136.htm IDEA: XBRL DOCUMENT
v3.19.1

Available-for-sale Financial Assets (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost |  | ₩ 888,673 |  |
Book value |  | 699,833 |  | ₩ 1,014,732
Fair value |  | 661,907 |  |
Listed equity securities |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost |  | 365,891 |  |
Book value |  | 274,453 |  | 268,171
Fair value |  | ₩ 274,453 |  |
Korea District Heating Corp. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 2,264,068 |  |
Ownership |  | 19.55% |  |
Acquisition cost |  | ₩ 173,201 |  |
Book value |  | 165,277 |  |
Fair value |  | ₩ 165,277 |  |
Ssangyong Motor Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 38,568 |  |
Ownership |  | 0.03% |  |
Acquisition cost |  | ₩ 428 |  |
Book value |  | 197 |  |
Fair value |  | ₩ 197 |  |
Sungjee Construction. Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 10,530 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 49 |  |
Book value |  | 8 |  |
Fair value |  | ₩ 8 |  |
Korea Line Corp. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 18 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 1 |  |
Namkwang Engineering & Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 46 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 15 |  |
Bumyang Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [1] | 35 |  |
Ownership | [1] | 0.00% |  |
Acquisition cost | [1] | ₩ 2 |  |
ELCOMTEC Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 32,875 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 217 |  |
Book value |  | 72 |  |
Fair value |  | ₩ 72 |  |
PAN ocean Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,492 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 14 |  |
Book value |  | 8 |  |
Fair value |  | ₩ 8 |  |
Dongbu Corporation |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [2] | 955 |  |
Ownership | [2] | 0.02% |  |
Acquisition cost | [2] | ₩ 12 |  |
Book value | [2] | 10 |  |
Fair value | [2] | ₩ 10 |  |
KSP Co., Ltd. [Member] |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 6,324 |  |
Ownership |  | 0.08% |  |
Acquisition cost |  | ₩ 24 |  |
Book value |  | 24 |  |
Fair value |  | ₩ 24 |  |
STX Heavy Industries Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 35,749 |  |
Ownership |  | 0.14% |  |
Acquisition cost |  | ₩ 191 |  |
Book value |  | 165 |  |
Fair value |  | ₩ 165 |  |
PT Adaro Energy Tbk |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 480,000,000 |  |
Ownership |  | 1.50% |  |
Acquisition cost |  | ₩ 71,554 |  |
Book value |  | 70,531 |  |
Fair value |  | ₩ 70,531 |  |
Energy Fuels Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,711,814 |  |
Ownership |  | 2.38% |  |
Acquisition cost |  | ₩ 16,819 |  |
Book value |  | 3,300 |  |
Fair value |  | ₩ 3,300 |  |
Baralaba Coal Company Limited |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 99,763 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 18,445 |  |
Book value |  | 22 |  |
Fair value |  | ₩ 22 |  |
Denison Mines Corp. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 58,284,000 |  |
Ownership |  | 10.42% |  |
Acquisition cost |  | ₩ 84,134 |  |
Book value |  | 34,292 |  |
Fair value |  | ₩ 34,292 |  |
Fission 3.0 [Member] |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 300,000 |  |
Ownership |  | 0.14% |  |
Book value |  | ₩ 15 |  |
Fair value |  | ₩ 15 |  |
Fission Uranium Corp. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 800,000 |  |
Ownership |  | 0.16% |  |
Acquisition cost |  | ₩ 785 |  |
Book value |  | 532 |  |
Fair value |  | 532 |  |
Unlisted equity securities |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [3] | 522,782 |  |
Book value |  | 425,380 | [3] | ₩ 746,561
Fair value | [3] | ₩ 387,454 |  |
Korea investment - Korea EXIM Bank CERs Private Special Assets Investment Trust I |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,758,731,002 |  |
Ownership |  | 14.18% |  |
Acquisition cost |  | ₩ 1,752 |  |
Book value |  | ₩ 571 |  |
Troika Overseas Resource Development Private Equity Firm |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 13,340,012,100 |  |
Ownership |  | 3.66% |  |
Acquisition cost |  | ₩ 13,340 |  |
Book value |  | ₩ 1,553 |  |
IBK-AUCTUS Green Growth Private Equity firm |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 152 |  |
Ownership |  | 6.29% |  |
Acquisition cost |  | ₩ 41 |  |
Book value |  | ₩ 41 |  |
Global Dynasty Overseas Resource Development Private Equity Firm |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 2,242,437,289 |  |
Ownership |  | 7.46% |  |
Acquisition cost |  | ₩ 2,242 |  |
Book value |  | ₩ 2,242 |  |
Intellectual Discovery, Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,000,000 |  |
Ownership |  | 8.81% |  |
Acquisition cost |  | ₩ 5,000 |  |
Book value |  | ₩ 954 |  |
Hanwha-KOSEP New Renewable Energy Private Special Assets Investment Trust 1 |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 4,176,751,013 |  |
Ownership |  | 5.00% |  |
Acquisition cost |  | ₩ 4,328 |  |
Book value |  | ₩ 4,328 |  |
Construction Guarantee |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [4] | 571 |  |
Ownership | [4] | 0.02% |  |
Acquisition cost | [4] | ₩ 601 |  |
Book value | [4] | 833 |  |
Fair value | [4] | ₩ 833 |  |
Plant & Mechanical Contractors Financial Cooperative of Korea |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 144 |  |
Ownership |  | 0.03% |  |
Acquisition cost |  | ₩ 126 |  |
Book value |  | ₩ 126 |  |
Fire Guarantee |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 40 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 20 |  |
Book value |  | ₩ 20 |  |
Korea Software Financial Cooperative |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 5,186 |  |
Ownership |  | 1.09% |  |
Acquisition cost |  | ₩ 3,301 |  |
Book value |  | ₩ 3,301 |  |
Engineering Financial Cooperative |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 486 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 60 |  |
Book value |  | ₩ 60 |  |
Electric Contractors Financial Cooperative |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,000 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 216 |  |
Book value |  | ₩ 216 |  |
Korea Specialty Contractor Financial Cooperative |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 476 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 417 |  |
Book value |  | ₩ 417 |  |
Information & Communication Financial Cooperative |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 121 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 26 |  |
Book value |  | ₩ 26 |  |
Korea Electric Engineers Association |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 400 |  |
Ownership |  | 0.24% |  |
Acquisition cost |  | ₩ 40 |  |
Book value |  | 40 |  |
Samsung investment - Investment Pool for Public funds 1 |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [5] | 53,220 |  |
Book value | [5] | 53,739 |  |
Fair value | [5] | 53,739 |  |
Korea investment - Hanwha KT Master Lease Private Special Investment Trust |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [5] | 26,586 |  |
Book value | [5] | 26,591 |  |
Fair value | [5] | 26,591 |  |
Kyobo Royal-Class Repo Plus Fixed Income 1Y 2nd |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [5] | 33,000 |  |
Book value | [5] | 33,008 |  |
Fair value | [5] | 33,008 |  |
Kyobo Royal-Class Repo Plus Fixed Income 2Y 1st |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [5] | 50,000 |  |
Book value | [5] | 50,399 |  |
Fair value | [5] | 50,399 |  |
Kyobo Royal-Class Repo Plus A1 ABCP 1Y |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Acquisition cost | [5] | 50,000 |  |
Book value | [5] | 50,419 |  |
Fair value | [5] | ₩ 50,419 |  |
Hwan Young Steel Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 10,916 |  |
Ownership |  | 0.14% |  |
Acquisition cost |  | ₩ 1,092 |  |
Book value |  | ₩ 97 |  |
SAMBO AUTO. Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 15,066 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 38 |  |
Book value |  | ₩ 38 |  |
Mobo Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 504 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 14 |  |
Book value |  | ₩ 14 |  |
Dae Kwang Semiconductor Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 589 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
Sanbon Department Store |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 828 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 124 |  |
Book value |  | ₩ 3 |  |
Miju Steel Mfg. Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 99,804 |  |
Ownership |  | 0.23% |  |
Acquisition cost |  | ₩ 50 |  |
Book value |  | ₩ 50 |  |
Sungwon Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 589 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 15 |  |
Book value |  | ₩ 15 |  |
Hana Civil Engineering Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 23 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
KC Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 839 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
IMHWA Corp. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 329 |  |
Ownership |  | 0.11% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
DALIM Special Vehicle Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 58 |  |
Ownership |  | 0.08% |  |
Acquisition cost |  | ₩ 10 |  |
Book value |  | ₩ 10 |  |
ASA JEONJU Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 34,846 |  |
Ownership |  | 1.34% |  |
Acquisition cost |  | ₩ 697 |  |
Book value |  | ₩ 69 |  |
Moonkyung Silica Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 42 |  |
Ownership |  | 0.56% |  |
Sungkwang Timber Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 9 |  |
Ownership |  | 0.34% |  |
Acquisition cost |  | ₩ 4 |  |
Book value |  | ₩ 4 |  |
Yongbo Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 61 |  |
Ownership |  | 0.20% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
HJ Steel Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 218 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
KS Remicon Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 12 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Joongang Platec Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3,591 |  |
Ownership |  | 0.75% |  |
Acquisition cost |  | ₩ 72 |  |
Book value |  | ₩ 35 |  |
Pyungsan SI Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 434 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 9 |  |
Book value |  | ₩ 9 |  |
Samgong Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 12 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 7 |  |
Book value |  | ₩ 7 |  |
Joongang Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 540 |  |
Ownership |  | 0.12% |  |
Acquisition cost |  | ₩ 8 |  |
Book value |  | ₩ 8 |  |
AJS Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 12,906 |  |
Ownership |  | 0.23% |  |
Acquisition cost |  | ₩ 32 |  |
Book value |  | ₩ 32 |  |
SHIN-E B&P Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 119 |  |
Ownership |  | 0.13% |  |
Acquisition cost |  | ₩ 10 |  |
Book value |  | ₩ 10 |  |
MSE Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 429 |  |
Ownership |  | 0.13% |  |
Acquisition cost |  | ₩ 9 |  |
Book value |  | ₩ 9 |  |
Ilrim Nano Tec Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,520 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 15 |  |
Book value |  | ₩ 15 |  |
Youngjin Hi-Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 2,512 |  |
Ownership |  | 0.25% |  |
Acquisition cost |  | ₩ 126 |  |
Book value |  | ₩ 21 |  |
Buyoung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 270 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Ilsuk Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 152 |  |
Ownership |  | 0.17% |  |
Acquisition cost |  | ₩ 10 |  |
Book value |  | ₩ 10 |  |
Dongyang Telecom Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,760 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 11 |  |
Book value |  | ₩ 11 |  |
Jongwon Remicon Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 31 |  |
Ownership |  | 0.18% |  |
Acquisition cost |  | ₩ 13 |  |
Book value |  | ₩ 13 |  |
Ace Heat Treating Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 477 |  |
Ownership |  | 1.43% |  |
Acquisition cost |  | ₩ 72 |  |
Book value |  | ₩ 72 |  |
Zyle Daewoo Motor Sales Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 22 |  |
Ownership |  | 0.00% |  |
Daewoo Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 8 |  |
Ownership |  | 0.00% |  |
Seyang Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 537 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 27 |  |
Book value |  | ₩ 27 |  |
Seungri Enterprise Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 93 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Onggane Food Co., Ltd |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 5 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Shin-E P&C Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 12 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Ejung Ad Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 132 |  |
Ownership |  | 0.09% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Solvus Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,056 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Myung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 89 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
Shinil Engineering Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 887 |  |
Ownership |  | 0.06% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Biwang Industry Co., Ltd |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 406 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
Huimun Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 263 |  |
Ownership |  | 0.26% |  |
Acquisition cost |  | ₩ 4 |  |
Book value |  | ₩ 4 |  |
Young Sung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 89 |  |
Ownership |  | 0.40% |  |
Acquisition cost |  | ₩ 26 |  |
Book value |  | ₩ 26 |  |
Yuil Industrial Electronics Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 804 |  |
Ownership |  | 0.32% |  |
Acquisition cost |  | ₩ 15 |  |
Book value |  | ₩ 15 |  |
DN TEK Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 12,401 |  |
Ownership |  | 0.29% |  |
Acquisition cost |  | ₩ 61 |  |
Book value |  | ₩ 5 |  |
Kwang Jin Structure Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3,072 |  |
Ownership |  | 0.60% |  |
Acquisition cost |  | ₩ 31 |  |
Book value |  | ₩ 31 |  |
Woojin Industry Corporation |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 16 |  |
Book value |  | ₩ 16 |  |
Kwang Sung Industry Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 325 |  |
Ownership |  | 0.35% |  |
Acquisition cost |  | ₩ 7 |  |
Book value |  | ₩ 7 |  |
Futech Mold Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 274 |  |
Ownership |  | 0.27% |  |
Acquisition cost |  | ₩ 14 |  |
Book value |  | ₩ 14 |  |
Woojoo Environment Ind. Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 101 |  |
Ownership |  | 0.11% |  |
Acquisition cost |  | ₩ 13 |  |
Book value |  | ₩ 13 |  |
Cheongatti Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 57 |  |
Ownership |  | 0.10% |  |
Acquisition cost |  | ₩ 4 |  |
Book value |  | ₩ 4 |  |
Hyungji Esquire Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 55 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 22 |  |
Book value |  | ₩ 22 |  |
Kolmar Pharma Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,426 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 52 |  |
Book value |  | ₩ 3 |  |
Morado Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 209 |  |
Ownership |  | 0.04% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
Myung Sung Tex Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 20 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
Kwang Sung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 610 |  |
Ownership |  | 0.53% |  |
Acquisition cost |  | ₩ 31 |  |
Book value |  | ₩ 31 |  |
EverTechno. Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 29,424 |  |
Ownership |  | 0.73% |  |
Acquisition cost |  | ₩ 148 |  |
Book value |  | ₩ 7 |  |
Autowel Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 260 |  |
Ownership |  | 0.38% |  |
Acquisition cost |  | ₩ 14 |  |
Book value |  | ₩ 14 |  |
Woobang Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 8 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 8 |  |
Book value |  | ₩ 8 |  |
Shin Pyung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 6 |  |
Ownership |  | 0.03% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
JMC Heavy Industries Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 2,724 |  |
Ownership |  | 0.10% |  |
Acquisition cost |  | ₩ 27 |  |
Book value |  | ₩ 27 |  |
Najin Steel Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 37 |  |
Ownership |  | 0.06% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Sinkwang Industry Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,091 |  |
Ownership |  | 1.68% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Crystal Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 22 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
Elephant & Friends Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 563 |  |
Ownership |  | 0.61% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Mireco Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 109 |  |
Ownership |  | 0.25% |  |
Acquisition cost |  | ₩ 11 |  |
Book value |  | ₩ 11 |  |
L&K Industry Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,615 |  |
Ownership |  | 0.60% |  |
Acquisition cost |  | ₩ 24 |  |
Book value |  | ₩ 24 |  |
JO Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,263 |  |
Ownership |  | 0.62% |  |
Acquisition cost |  | ₩ 25 |  |
Book value |  | ₩ 25 |  |
Kendae Printing Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 422 |  |
Ownership |  | 0.60% |  |
Acquisition cost |  | ₩ 21 |  |
Book value |  | ₩ 21 |  |
Dauning Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 231 |  |
Ownership |  | 0.41% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
Korea Trecision Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 22 |  |
Ownership |  | 0.45% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Ace Track Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3,130 |  |
Ownership |  | 1.08% |  |
Acquisition cost |  | ₩ 219 |  |
Book value |  | ₩ 59 |  |
Taebok Machinery Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 109 |  |
Ownership |  | 1.08% |  |
Acquisition cost |  | ₩ 11 |  |
Book value |  | ₩ 11 |  |
Yoo-A Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 105 |  |
Ownership |  | 0.20% |  |
Acquisition cost |  | ₩ 11 |  |
Book value |  | ₩ 11 |  |
Dung Hwan Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 531 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Hurim Biocell Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 113 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Sunjin Power Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 4,941 |  |
Ownership |  | 0.92% |  |
Acquisition cost |  | ₩ 247 |  |
Book value |  | ₩ 32 |  |
Smart Power Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 133,333 |  |
Ownership |  | 4.83% |  |
Acquisition cost |  | ₩ 200 |  |
Book value |  | ₩ 200 |  |
Haseung Industries Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 55 |  |
Ownership |  | 0.62% |  |
Acquisition cost |  | ₩ 28 |  |
Book value |  | ₩ 28 |  |
Beer Yeast Korea Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,388 |  |
Ownership |  | 0.43% |  |
Acquisition cost |  | ₩ 7 |  |
Book value |  | ₩ 7 |  |
Daeryung Corporation |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 207 |  |
Ownership |  | 0.19% |  |
Acquisition cost |  | ₩ 10 |  |
Book value |  | ₩ 10 |  |
Korea Bio Red Ginseng Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 194 |  |
Ownership |  | 0.09% |  |
Acquisition cost |  | ₩ 10 |  |
Book value |  | ₩ 10 |  |
ENH Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,086 |  |
Ownership |  | 0.19% |  |
Acquisition cost |  | ₩ 54 |  |
Book value |  | ₩ 54 |  |
B CON Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 96 |  |
Ownership |  | 1.16% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
Chunil Metal Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 11 |  |
Ownership |  | 0.15% |  |
Acquisition cost |  | ₩ 4 |  |
Book value |  | ₩ 4 |  |
SsangMa Machine Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 4 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
SinJin Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 233 |  |
Ownership |  | 0.30% |  |
Acquisition cost |  | ₩ 9 |  |
Book value |  | ₩ 9 |  |
Ace Integration Co., Ltd |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 105 |  |
Ownership |  | 0.09% |  |
Acquisition cost |  | ₩ 24 |  |
Book value |  | ₩ 24 |  |
AceInti Agricultural Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 16 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
KyungDong Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 130 |  |
Ownership |  | 0.01% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
ChunWon Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 193 |  |
Ownership |  | 0.19% |  |
Acquisition cost |  | ₩ 39 |  |
Book value |  | ₩ 39 |  |
WonIl Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 999 |  |
Ownership |  | 0.15% |  |
Acquisition cost |  | ₩ 50 |  |
Book value |  | ₩ 50 |  |
SungLim Industrial Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 29 |  |
Ownership |  | 0.03% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Korea Minerals Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 191 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 134 |  |
Book value |  | ₩ 1 |  |
HyoDong Development Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 119 |  |
Ownership |  | 0.15% |  |
Acquisition cost |  | ₩ 24 |  |
Book value |  | ₩ 24 |  |
Haspe Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 652 |  |
Ownership |  | 0.55% |  |
Acquisition cost |  | ₩ 20 |  |
Book value |  | ₩ 20 |  |
JoHyun Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 350 |  |
Ownership |  | 1.56% |  |
Acquisition cost |  | ₩ 18 |  |
Book value |  | ₩ 18 |  |
KC Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 5,107 |  |
Ownership |  | 0.17% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
SeongJi Industrial Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 41 |  |
Ownership |  | 0.05% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Navanakorn Electric Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [6] | 4,442,800 |  |
Ownership | [6] | 26.93% |  |
Acquisition cost | [6] | ₩ 17,216 |  |
Book value | [6] | ₩ 16,410 |  |
PT. Kedap Saayq |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 671 |  |
Ownership |  | 10.00% |  |
Acquisition cost |  | ₩ 18,540 |  |
Set Holding |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [7] | 1,100,220 |  |
Ownership | [7] | 2.50% |  |
Acquisition cost | [7] | ₩ 229,255 |  |
Book value | [7] | 171,242 |  |
Fair value | [7] | ₩ 171,242 |  |
PT. Cirebon Energi Prasarana |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 22,420 |  |
Ownership |  | 10.00% |  |
Acquisition cost |  | ₩ 2,612 |  |
Book value |  | ₩ 2,401 |  |
DongKwang SD, Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 524 |  |
Ownership |  | 0.23% |  |
Acquisition cost |  | ₩ 13 |  |
Book value |  | ₩ 13 |  |
Dong Yang Metal Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 2,951 |  |
Ownership |  | 1.97% |  |
Acquisition cost |  | ₩ 15 |  |
Book value |  | ₩ 15 |  |
Seyang Precision Ind.Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 829 |  |
Ownership |  | 0.23% |  |
Acquisition cost |  | ₩ 41 |  |
Book value |  | ₩ 41 |  |
Dooriwon Food System Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 13 |  |
Ownership |  | 0.27% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
ShinShin Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 339 |  |
Ownership |  | 1.12% |  |
Acquisition cost |  | ₩ 17 |  |
Book value |  | ₩ 17 |  |
Kitorang Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 165 |  |
Ownership |  | 0.24% |  |
Acquisition cost |  | ₩ 49 |  |
Book value |  | ₩ 49 |  |
Sung Kwang Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 23 |  |
Ownership |  | 0.37% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
Hyundai Metal Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3,757 |  |
Ownership |  | 5.60% |  |
Acquisition cost |  | ₩ 1,416 |  |
Book value |  | ₩ 1,416 |  |
Shinheung petrol. Co. Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 699 |  |
Ownership |  | 0.14% |  |
Acquisition cost |  | ₩ 7 |  |
Book value |  | ₩ 7 |  |
Force TEC Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 3,501 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 18 |  |
Book value |  | ₩ 18 |  |
Haisung Industrial Systems Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 10,751 |  |
Ownership |  | 0.24% |  |
Acquisition cost |  | ₩ 54 |  |
Book value |  | ₩ 54 |  |
Samsung Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 486 |  |
Ownership |  | 1.28% |  |
Acquisition cost |  | ₩ 97 |  |
Book value |  | ₩ 97 |  |
Tae Hyung Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 28 |  |
Ownership |  | 0.43% |  |
Acquisition cost |  | ₩ 20 |  |
Book value |  | ₩ 20 |  |
Samyangplant Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 323 |  |
Ownership |  | 0.60% |  |
Acquisition cost |  | ₩ 16 |  |
Book value |  | ₩ 16 |  |
Younil Metal Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 41 |  |
Ownership |  | 0.21% |  |
Acquisition cost |  | ₩ 21 |  |
Book value |  | ₩ 21 |  |
Myungjin Tech Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 20 |  |
Ownership |  | 0.54% |  |
Acquisition cost |  | ₩ 4 |  |
Book value |  | ₩ 4 |  |
Hankook Machine Tools Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 719 |  |
Ownership |  | 0.14% |  |
Acquisition cost |  | ₩ 72 |  |
Book value |  | ₩ 72 |  |
Hankook Precision Ind Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 110 |  |
Ownership |  | 0.06% |  |
Acquisition cost |  | ₩ 11 |  |
Book value |  | ₩ 11 |  |
Borneo International Furniture Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 64,037 |  |
Ownership |  | 0.28% |  |
Acquisition cost |  | ₩ 97 |  |
Book value |  | ₩ 14 |  |
CJ Paradise Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 24 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 12 |  |
Book value |  | ₩ 12 |  |
Han Young Technology Company Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 35 |  |
Ownership |  | 0.00% |  |
Jungdo Aluminium Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 8,527 |  |
Ownership |  | 0.35% |  |
Acquisition cost |  | ₩ 128 |  |
Book value |  | ₩ 128 |  |
Ilheung Metal Co, Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 280 |  |
Ownership |  | 0.83% |  |
Acquisition cost |  | ₩ 28 |  |
Book value |  | ₩ 28 |  |
STX Offshore & Shipbuilding Co., Ltd |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 8,622 |  |
Ownership |  | 0.25% |  |
Acquisition cost |  | ₩ 1,078 |  |
Book value |  | ₩ 1,078 |  |
Ptotronics Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 151 |  |
Ownership |  | 0.07% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
NFT Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 136 |  |
Ownership |  | 0.40% |  |
Acquisition cost |  | ₩ 8 |  |
Book value |  | ₩ 8 |  |
Echoroba Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 157 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Hyundaitech Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,363 |  |
Ownership |  | 0.87% |  |
Acquisition cost |  | ₩ 27 |  |
Book value |  | ₩ 27 |  |
Eco Alux Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 239 |  |
Ownership |  | 0.22% |  |
Acquisition cost |  | ₩ 48 |  |
Book value |  | ₩ 48 |  |
Daekyung Industry Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 9,112 |  |
Ownership |  | 0.94% |  |
Acquisition cost |  | ₩ 13 |  |
Book value |  | ₩ 13 |  |
Dasan Material Co.Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 29 |  |
Ownership |  | 0.04% |  |
Fish World Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 47 |  |
Ownership |  | 0.21% |  |
Acquisition cost |  | ₩ 2 |  |
Book value |  | ₩ 2 |  |
SG Shinsung Engineering and Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 10 |  |
Ownership |  | 0.00% |  |
Acquisition cost |  | ₩ 6 |  |
Book value |  | ₩ 6 |  |
Samdo Industry Electric Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 48 |  |
Ownership |  | 0.02% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Taejung Industries Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 9,268 |  |
Ownership |  | 0.30% |  |
Acquisition cost |  | ₩ 5 |  |
Book value |  | ₩ 5 |  |
Shinsei Trading Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 64 |  |
Ownership |  | 0.72% |  |
Acquisition cost |  | ₩ 1 |  |
Book value |  | ₩ 1 |  |
Dynamic Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 111 |  |
Ownership |  | 0.19% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
Green Alchemy Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 38,202 |  |
Ownership |  | 1.48% |  |
Acquisition cost |  | ₩ 191 |  |
Book value |  | ₩ 191 |  |
IQ Power Asia Inc. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 16,179 |  |
Ownership |  | 0.31% |  |
Acquisition cost |  | ₩ 81 |  |
Book value |  | ₩ 81 |  |
Youone TBM Engineering & Construction Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 227,854 |  |
Ownership |  | 0.27% |  |
Acquisition cost |  | ₩ 31 |  |
Book value |  | ₩ 31 |  |
KM Leatech |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 1,648 |  |
Ownership |  | 0.98% |  |
Acquisition cost |  | ₩ 8 |  |
Book value |  | ₩ 8 |  |
Wonil T&I Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 229 |  |
Ownership |  | 0.17% |  |
Acquisition cost |  | ₩ 23 |  |
Book value |  | ₩ 23 |  |
Semist Co.,Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares |  | 555 |  |
Ownership |  | 0.80% |  |
Acquisition cost |  | ₩ 3 |  |
Book value |  | ₩ 3 |  |
DS POWER Co., Ltd. |  |  |  |
Available-for-sale financial assets [Line Items] |  |  |  |
Shares | [8] | 580,000 |  |
Ownership | [8] | 2.34% |  |
Acquisition cost | [8] | ₩ 2,900 |  |
Book value | [8] | 1,223 |  |
Fair value | [8] | ₩ 1,223 |  |
[1] | The number of shares increased due to the stock split (5:1).
[2] | The number of shares owned has changed due to the stock merge (9:7) during the year ended December 31, 2017.
[3] | Investments in unlisted equity securities held by the Company for which a quoted market price does not exist in an active market and fair value cannot be measured reliably were measured at cost less impairment, if any.
[4] | The Company has estimated the fair value of the investment in Construction Guarantee based upon the price which would be applied when the investment is returned. The Company has recognized the difference between its fair value and book value as a gain or loss on valuation of available-for-sale financial assets in other comprehensive income or loss during the year ended December 31, 2017.
[5] | As of December 31, 2017, the Company invested in KRW214,156 million as beneficiary securities exclusively for payment of decommissioning cost of nuclear power plants. The Company has measured the fair value of the beneficiary securities based on its net asset value.
[6] | Although the Company holds more than 20% of the equity shares of these investments, the Company cannot exercise significant influence.
[7] | The Company has estimated the fair value of Set Holding by using the discounted cash flow method and has recognized the difference between its fair value and book value as gain or loss on valuation of available-for-sale financial assets in other comprehensive income or loss during the year ended December 31, 2017.
[8] | As described in note 20, this is reclassified to available-for-sale financial assets due to loss of significant influence of the Company.

X
- Definition The amount of non-derivative financial assets that are designated as available for sale or are not classified as (a) loans and receivables; (b) held-to-maturity investments; or (c) financial assets at fair value through profit or loss. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss; Held-to-maturity investments] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 8 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_8_d&doctype=Standard&book=b -URIDate 2018-03-16 + Details
Name: | ifrs-full_FinancialAssetsAvailableforsale
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_AcquisitionCostsOfFinancialAssetsAvailableforsale
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_AvailableForSaleFinancialAssetsLineItems
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_FairValueOfFinancialAssetsAvailableforsale
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_NumberOfSharesOwnedInFinancialAssetsAvailableforsale
Namespace Prefix: | kep_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_ProportionOfOwnershipInterestInFinancialAssetsAvailableforsale
Namespace Prefix: | kep_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_TradingEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaDistrictHeatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SsangyongMotorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SungjeeConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_NamkwangEngineeringConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PumyangConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ELCOMTECMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PANoceanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DongbuMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KSPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_STXHeavyIndustriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PTAdaroEnergyTbkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EnergyFuelsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BaralabaCoalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DenisonMinesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_Fission30Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_FissionUraniumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=ifrs-full_OtherEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreainvestmentKoreaEXIMBankCERsPrivateSpecialAssetsInvestmentTrustIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_TroikaOverseasResourceDevelopmentPrivateEquityFirmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IBKAUCTUSGreenGrowthPrivateEquityfirmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_GlobalDynastyOverseasResourceDevelopmentPrivateEquityFirmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IntellectualDiscoveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HanwhaKOSEPNewRenewableEnergyPrivateSpecialAssetsInvestmentTrust1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ConstructionGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PlantMechanicalContractorsFinancialCooperativeofKoreaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_FireGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaSoftwareFinancialCooperativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EngineeringFinancialCooperativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ElectricContractorsFinancialCooperativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaSpecialtyContractorFinancialCooperativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_InformationCommunicationFinancialCooperativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaElectricEngineersAssociationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SamsunginvestmentInvestmentPoolforPublicfunds1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreainvestmentHanwhaKTMasterLeasePrivateSpecialInvestmentTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KyoboRoyalClassRepoPlusFixedIncome1Y2ndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KyoboRoyalClassRepoPlusFixedIncome2Y1stMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KyoboRoyalClassRepoPlusA1ABCP1YMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HwanYoungSteelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SAMBOAUTOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MoboMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DaeKwangSemiconductorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SanbonDepartmentStoreMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MijuSteelMfgMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SungwonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HanaCivilEngineeringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KCDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IMHWAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DALIMSpecialVehicleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ASAJEONJUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MoonkyungSilicaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SungkwangTimberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YongboMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HJSteelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KSRemiconMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JoongangPlatecMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PyungsanSIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SamgongDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JoongangDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AJSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SHINEBPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MSEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IlrimNanoTecMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YoungjinHiTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BuyoungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IlsukMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DongyangTelecomMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JongwonRemiconMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AceHeatTreatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ZyleDaewooMotorSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DaewooDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SeyangMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SeungriEnterpriseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_OngganeFoodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinEPCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EjungAdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SolvusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MyungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinilEngineeringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BiwangIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HuimunMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YoungSungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YuilIndustrialElectronicsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DNTEKMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KwangJinStructureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_WoojinIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KwangSungIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_FutechMoldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_WoojooEnvironmentIndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_CheongattiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HyungjiEsquireMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KolmarPharmaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MoradoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MyungSungTexMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KwangSungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EverTechnoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AutowelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_WoobangConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinPyungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JMCHeavyIndustriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_NajinSteelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SinkwangIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_CrystalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ElephantFriendsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MirecoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_LKIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JOTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KendaePrintingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DauningMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaTrecisionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AceTrackMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_TaebokMachineryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YooAConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DungHwanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HurimBiocellMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SunjinPowerTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SmartPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HaseungIndustriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BeerYeastKoreaIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DaeryungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaBioRedGinsengMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ENHMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BCONMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ChunilMetalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SsangMaMachineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SinJinMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AceIntegrationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_AceIntiAgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KyungDongMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ChunWonDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_WonIlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SungLimIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KoreaMineralsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HyoDongDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HaspeTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JoHyunMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SeongJiIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_NavanakornElectricMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PTKedapSaayqMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SetHoldingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PTCirebonEnergiPrasaranaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DongKwangSDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DongYangMetalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SeyangPrecisionIndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DooriwonFoodSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinShinMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KitorangMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SungKwangMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HyundaiMetalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinheungpetrolMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ForceTECMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HaisungIndustrialSystemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SamsungTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_TaeHyungMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SamyangplantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YounilMetalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_MyungjinTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HankookMachineToolsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HankookPrecisionIndMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_BorneoInternationalFurnitureUnlistedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_CJParadiseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HanYoungTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_JungdoAluminiumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IlheungMetalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_STXOffshoreShipbuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_PtotronicsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_NFTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EchorobaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_HyundaitechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_EcoAluxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DaekyungIndustryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DasanMaterialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_FishWorldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SGShinsungEngineeringandConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SamdoIndustryElectricMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_TaejungIndustriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_ShinseiTradingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DynamicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_GreenAlchemyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_IQPowerAsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_YouoneTBMEngineeringConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_KMLeatechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_WonilTIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_SemistMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=kep_DSPOWERMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |