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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2019
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Summary Of Major Commitments With Local Financial Institutions | As at December 31, 2019, major commitments with local financial institutions are as follows:
(In millions of Korean won and thousands of foreign currencies) |  | Financial institution |  | Currency |  |  | Limit |  |  | Used amount |
Bank overdraft |  | Kookmin Bank and others |  |  | KRW |  |  |  | 1,637,000 |  |  |  | — |
Inter-Korean Cooperation Fund |  | Export-Import Bank of Korea |  |  | KRW |  |  |  | 37,700 |  |  |  | 3,454 |
Collateralized loan on electronic accounts receivable-trade |  | Shinhan Bank and others |  |  | KRW |  |  |  | 467,560 |  |  |  | 29,102 |
Plus electronic notes payable |  | Industrial Bank of Korea |  |  | KRW |  |  |  | 50,000 |  |  |  | 3,138 |
Loans for working capital |  | Korea Development Bank and others |  |  | KRW |  |  |  | 254,193 |  |  |  | 154,693 |
Facility loans |  | Shinhan Bank and others |  |  | KRW |  |  |  | 102,122 |  |  |  | 79 |
|  | Kookmin Bank and others |  |  | USD |  |  |  | 212,000 |  |  |  | 87,940 |
Facility loans on ships |  | Shinhan Bank |  |  | USD |  |  |  | 3,000 |  |  |  | 3,000 |
Derivatives transaction limit |  | Korea Development Bank |  |  | KRW |  |  |  | 100,000 |  |  |  | 18,458 |
Total |  |  |  |  | KRW |  |  |  | 2,648,575 |  |  |  | 208,924 |
|  |  |  |  | USD |  |  |  | 215,000 |  |  |  | 90,940 |
Summary of Guarantees Received from Financial Institutions | As at December 31, 2019, guarantees received from financial institutions are as follows:
(In millions of Korean won and thousands of foreign currencies) |  | Financial institution |  | Currency |  |  | Limit |
Performance guarantee |  | Seoul Guarantee Insurance and others |  |  | KRW |  |  |  | 166,315 |
|  |  |  |  | USD |  |  |  | 1,200 |
Guarantee for import letters of credit |  | Industrial Bank of Korea and others |  |  | USD |  |  |  | 5,980 |
Guarantee for payment in foreign currency |  | KEB Hana and others |  |  | USD |  |  |  | 59,304 |
|  |  |  |  | PLN | 1 |  |  | 13,751 |
Comprehensive credit line |  | KEB Hana Bank and others |  |  | KRW |  |  |  | 40,000 |
|  | KEB Hana Bank |  |  | USD |  |  |  | 10,000 |
Bid guarantee |  | KEB Hana Bank |  |  | USD |  |  |  | 400 |
Bid guarantee |  |  |  |  | KRW |  |  |  | 42,581 |
Performance guarantee /Warranty Guarantee |  | Korea Software Financial Cooperative and others |  |  | KRW |  |  |  | 460,871 |
Guarantee for advances received/others |  |  |  |  | KRW |  |  |  | 218,267 |
Warranty guarantee |  |  |  |  | KRW |  |  |  | 562 |
Guarantees for licensing |  |  |  |  | KRW |  |  |  | 6,578 |
Guarantee for deposits |  | Seoul Guarantee Insurance |  |  | KRW |  |  |  | 3,586 |
Merchant business guarantee insurance |  |  |  |  | KRW |  |  |  | 169 |
Total |  |  |  |  | KRW |  |  |  | 938,929 |
|  |  |  |  | USD |  |  |  | 76,884 |
|  |  |  |  | PLN | 1 |  |  | 13,751 |
| 1 | Polish Zloty.
Summary Of Guarantees Provided By The Group For Third Parties | As at December 31, 2019, guarantees provided by the Group to a third party, are as follows:
(In millions of Korean won and thousands of foreign currencies) |  | Subject to payment guarantees |  | Creditor |  | Currency |  |  | Limit |  |  | Used amount |  |  | Period |
KT Estate Inc. |  | Busan Gaya Centreville Buyers |  | Shinhan Bank |  |  | KRW |  |  |  | 4,829 |  |  |  | 4,137 |  |  |  | Nov 10, 2017 ~Oct. 31, 2020 |
KT Estate Inc. |  | Daegu Beomeo-Crossroads SeohanIDaum Buyers |  | Shinhan Bank |  |  | KRW |  |  |  | 8,028 |  |  |  | 6,985 |  |  |  | Oct 29, 2017 ~Nov. 30, 2020 |
KT Hitel Co., Ltd. |  | Shinhan Bank |  | Cash payers |  |  | KRW |  |  |  | 683 |  |  |  | — |  |  |  | Apr 19, 2019 ~Apr 17, 2020 |

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