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Commitments for Expenditure (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments for Expenditure [Abstract] |
Commitments for acquisition of property, plant and equipment |
The commitments for acquisition of property, plant and equipment as of December 31, 2019 and 2020 are as follows:
|  |  |  |  | 2019 |  |  | 2020 |
Contracts |  |  |  |  | Commitment amounts |  |  | Remaining liability balances |  |  | Commitment amounts |  |  | Remaining liability balances |
|  |  |  |  | In millions of won |
Purchase of cable (PVC, 1C, 2000SQ) 153,000M and others (Shin-Bupyung-Youngseo) |  | ￦ |  |  |  |  | 56,408 |  |  |  | 24,721 |  |  |  | 56,574 |  |  |  | 16,038 |
Purchase of cable (PVC, 1C, 2500SQ) 103,374M and others (Bukdangjin-Shin-Tangjung) |  |  |  |  |  |  | 45,390 |  |  |  | 32,876 |  |  |  | 45,390 |  |  |  | 32,876 |
Purchase of GIS (362kV, 6300A, 63kA) 23CB – Youngseo S/S |  |  |  |  |  |  | 36,143 |  |  |  | 36,143 |  |  |  | 36,143 |  |  |  | 29,898 |
Purchase of GIS (362kV, 6300A, 63kA) 26CB – Hwasung S/S |  |  |  |  |  |  | 40,010 |  |  |  | 15,300 |  |  |  | 40,010 |  |  |  | 8,328 |
Purchase of GIS (362kV, 6300A, 63kA) 27CB – Kwangyang S/S |  |  |  |  |  |  | 37,744 |  |  |  | 9,700 |  |  |  | 37,744 |  |  |  | 2,244 |
Purchase of cable (FR CNCO-W, 1C, 325SQ) 1,400,000M |  |  |  |  |  |  | 59,716 |  |  |  | 37,249 |  |  |  | 59,716 |  |  |  | 37,249 |
Purchase of switch (Eco) 9,360 units |  |  |  |  |  |  | 40,631 |  |  |  | 24,031 |  |  |  | 40,631 |  |  |  | 24,031 |
Purchase of cable (TR CNCE-W/AL, 1C, 400SQ) 2,654,400M |  |  |  |  |  |  | 36,063 |  |  |  | 6,243 |  |  |  | 35,708 |  |  |  | — |
Purchase of cable (TR CNCE-W,1C,600SQ) 551,200M |  |  |  |  |  |  | — |  |  |  | — |  |  |  | 37,288 |  |  |  | 23,100 |
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 4,464,000M |  |  |  |  |  |  | — |  |  |  | — |  |  |  | 82,622 |  |  |  | 51,130 |
Purchase of cable (FR CNCO-W,1C,325SQ) 1,092,000M |  |  |  |  |  |  | — |  |  |  | — |  |  |  | 42,068 |  |  |  | 35,358 |
Concrete pole (10M, general purpose, 350KGF) 102,435 ea and five other equipments |  | ￦ |  |  |  |  | — |  |  |  | — |  |  |  | 91,889 |  |  |  | 80,904 |
Construction of Shin-Kori units (#5,6) |  |  |  |  |  |  | 8,625,387 |  |  |  | 4,479,956 |  |  |  | 8,625,387 |  |  |  | 3,256,117 |
Construction of Shin-Hanul units (#1,2) |  |  |  |  |  |  | 8,306,149 |  |  |  | — |  |  |  | 9,443,635 |  |  |  | 160,512 |
Other 20 contracts |  |  |  |  |  |  | 352,710 |  |  |  | 122,890 |  |  |  | 107,586 |  |  |  | 58,466 |
Service of designing Seoul Combined units (#1,2) |  |  |  |  |  |  | 30,778 |  |  |  | 2,119 |  |  |  | 31,841 |  |  |  | 984 |
Purchase of main machine for construction of Seoul Combined units (#1,2) |  |  |  |  |  |  | 331,249 |  |  |  | 15,918 |  |  |  | 331,249 |  |  |  | — |
Construction of Seoul Combined units (#1,2) |  |  |  |  |  |  | 387,722 |  |  |  | 31,150 |  |  |  | 409,597 |  |  |  | — |
Service of designing Shin-Boryeong units (#1,2) |  |  |  |  |  |  | 120,668 |  |  |  | 888 |  |  |  | 121,163 |  |  |  | 521 |
Purchase of main machine for construction of Shin-Boryeong units (#1,2) |  |  |  |  |  |  | 816,317 |  |  |  | 4,955 |  |  |  | 816,317 |  |  |  | — |
Purchase of furnace for construction of Shin-Seocheon thermal power plant |  |  |  |  |  |  | 305,209 |  |  |  | 43,388 |  |  |  | 305,209 |  |  |  | 29,042 |
Purchase of turbine generator for construction of Shin-Seocheon thermal power plant |  |  |  |  |  |  | 105,226 |  |  |  | 10,736 |  |  |  | 105,226 |  |  |  | 8,279 |
Electricity construction of Shin-Seocheon thermal power plant |  |  |  |  |  |  | 231,196 |  |  |  | 87,874 |  |  |  | 282,234 |  |  |  | 13,524 |
Purchase of main machine for Jeju LNG combined |  |  |  |  |  |  | 166,287 |  |  |  | 12,088 |  |  |  | 166,287 |  |  |  | 11,182 |
Service of designing Taean units (#9,10) |  |  |  |  |  |  | 112,483 |  |  |  | 12,862 |  |  |  | 112,813 |  |  |  | 12,933 |
Purchase of gas turbine and turbine equipment of Gimpo combined heat & power plant |  |  |  |  |  |  | 104,600 |  |  |  | 104,600 |  |  |  | 104,600 |  |  |  | 41,840 |
Purchase of steam turbine, HRSG and POWER BLOCK of Gimpo combined heat & power plant |  |  |  |  |  |  | — |  |  |  | — |  |  |  | 210,900 |  |  |  | 147,630 |
Purchase of coal handling machine for construction of Samcheok units (#1,2) |  |  |  |  |  |  | 282,927 |  |  |  | 42,785 |  |  |  | 285,158 |  |  |  | 22,751 |
Purchase of furnace main equipment for construction of Samcheok units (#1,2) |  |  |  |  |  |  | 1,066,824 |  |  |  | 11,771 |  |  |  | 1,065,141 |  |  |  | 11,609 |
Purchase of turbine main equipment for Samcheok units (#1,2) |  |  |  |  |  |  | 223,550 |  |  |  | 132 |  |  |  | 211,349 |  |  |  | 125 |
Purchase of main equipment for Namjeju |  |  |  |  |  |  | 138,486 |  |  |  | 84,982 |  |  |  | 140,144 |  |  |  | 112 |
Commitments for inventory purchase |
As of December 31, 2020, details of contracts for inventory purchase commitment are as follows:
The Company imports all of its uranium ore concentrates from sources outside Korea (including the United States, United Kingdom, Kazakhstan, France, Russia, South Africa, Canada and Australia) which are paid for with currencies other than Won, primarily in U.S. dollars. In order to ensure stable supply, the Company entered into long-term and medium-term contracts with various suppliers, and supplements such supplies with purchases of fuels on spot markets. The long-term and medium-term contract periods vary among contractors and the stages of fuel manufacturing process. Contract prices for processing of uranium are generally based on market prices. Contract periods for ore concentrates, conversion, enrichment and design and fabrication are as follows:
Type |  | Periods |  |  | Contracted quantity
Concentrate |  |  | 2020 ~ 2030 |  |  | 32,435 Ton U3O8
Transformed |  |  | 2020 ~ 2030 |  |  | 18,088 Ton U
Enrichment |  |  | 2020 ~ 2030 |  |  | 17,667 Ton SWU
In addition, the contracted quantity of the molded uranium between Korea Hydro & Nuclear Power Co., Ltd. and KEPCO Nuclear Fuel Co., Ltd., which are subsidiaries of the Company, is 1,572 Ton U (contract period : 2009~2024).

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