XML 79 R67.htm IDEA: XBRL DOCUMENT
v3.21.1

Commitments and Contingencies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Text block [abstract] |
Summary Of Major Commitments With Local Financial Institutions | As at December 31, 2020, 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 |  |  | 1,502,000 |  |  |  | — |
Inter-Korean Cooperation Fund |  | Export-Import Bank of Korea |  | KRW |  |  | 37,700 |  |  |  | 2,714 |
Insurance for Economic Cooperation project |  | Export-Import Bank of Korea |  | KRW |  |  | 3,240 |  |  |  | 1,732 |
Collateralized loan on electronic accounts receivable-trade |  | Kookmin Bank and others |  | KRW |  |  | 522,849 |  |  |  | 23,475 |
Plus electronic notes payable |  | Industrial Bank of Korea |  | KRW |  |  | 50,000 |  |  |  | 331 |
Loans for working capital |  | Korea Development Bank and others |  | KRW |  |  | 243,593 |  |  |  | 152,243 |
Facility loans |  | Shinhan Bank and others |  | KRW |  |  | 100,123 |  |  |  | 55 |
| Kookmin Bank and others |  | USD |  |  | 212,000 |  |  |  | 48,855 |
Derivatives transaction limit |  | Korea Development Bank |  | KRW |  |  | 100,000 |  |  |  | 22,027 |
| Woori Bank and others |  | USD |  |  | 69,054 |  |  |  | 44,616 |
Total |  |  |  | KRW |  |  | 2,559,505 |  |  |  | 202,577 |
|  | USD |  |  | 281,054 |  |  |  | 93,471 |
Summary of Guarantees Received from Financial Institutions | As at December 31, 2020, 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 |  |  |  | 208,386 |
Performance guarantee |  | Korea Development Bank and others |  |  | USD |  |  |  | 8,569 |
Guarantee for import letters of credit |  | Industrial Bank of Korea and others |  |  | USD |  |  |  | 5,000 |
Guarantee for payment in won currency |  | Shinhan Bank and others |  |  | KRW |  |  |  | 70,962 |
Refund guarantee for advances received |  | Korea Development Bank |  |  | USD |  |  |  | 8,536 |
Guarantee for payment in foreign currency |  | KEB Hana Bank and others |  |  | USD |  |  |  | 40,840 |
Comprehensive credit line |  | KEB Hana Bank and others |  |  | KRW |  |  |  | 41,100 |
Comprehensive credit line |  | KEB Hana Bank and others |  |  | USD |  |  |  | 8,700 |
Bid guarantee |  | KEB Hana Bank |  |  | USD |  |  |  | 400 |
Bid guarantee |  | Korea Software Financial Cooperative and others |  |  | KRW |  |  |  | 80,246 |
Performance guarantee /warranty guarantee |  |  |  |  | KRW |  |  |  | 393,019 |
Guarantee for advance payments/others |  |  |  |  | KRW |  |  |  | 388,656 |
Warranty guarantee |  | Seoul Guarantee Insurance |  |  | KRW |  |  |  | 1,305 |
Performance guarantee |  |  |  |  | KRW |  |  |  | 9,690 |
Guarantees for licensing |  |  |  |  | KRW |  |  |  | 7,748 |
Guarantees for depositions |  |  |  |  | KRW |  |  |  | 3,792 |
Merchant business guarantee insurance |  |  |  |  | KRW |  |  |  | 237 |
Total |  |  |  |  | KRW |  |  |  | 1,205,141 |
|  |  |  |  | USD |  |  |  | 72,045 |
Summary Of Guarantees Provided By The Group For Third Parties | As at December 31, 2020, guarantees provided by the Group to a third party, are as follows:
(In millions of Korean won) |  | Subject to payment guarantees |  | Creditor |  | Limit |  |  | Used amount |  |  | Period |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 |  | Gasan Solar Power Plant Inc. |  | Shinhan Bank |  |  | 4,700 |  |  |  | 1,371 |  |  |  | Jan. 08, 2025 |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 |  | SPP Inc. |  | Suhyup Bank |  |  | 3,250 |  |  |  | 932 |  |  |  | Feb. 16, 2024 |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 |  | Korea Cell Inc. |  | Suhyup Bank |  |  | 3,250 |  |  |  | 880 |  |  |  | Feb. 16, 2024 |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 |  | San-Ya Agricultural Association Corporation |  | Suhyup Bank |  |  | 3,250 |  |  |  | 888 |  |  |  | Feb. 16, 2024 |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) 1 |  | Ciocanesti Korea Co., Ltd. |  | NH Investment & Securities Co.,Ltd. |  |  | 7,600 |  |  |  | 7,600 |  |  |  | Jun. 8, 2017 |
KT Hitel Co., Ltd. |  | Shinhan Bank |  | Cash payers |  |  | 700 |  |  |  | — |  |  |  | Apr. 17, 2020 ~ Apr. 16, 2021 |
Nasmedia Co., Ltd. |  | Stockholders Association Members |  | Korea Securities Finance Corp |  |  | 5,654 |  |  |  | 2,735 |  |  |  | — |
| 1 | According to the above payment guarantee, KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.), a subsidiary of the Group, will have an obligation of repayment if the principal borrower does not repay the borrowing.

X
- Definition The disclosure of commitments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfCommitmentsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of financial guarantees. + References No definition available. + Details
Name: | kt_DisclosureOfFinancialGuaranteesExplanatory
Namespace Prefix: | kt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of guarantees received from financial institutions. + References No definition available. + Details
Name: | kt_DisclosureOfGuaranteesReceivedFromFinancialInstitutionsExplanatory
Namespace Prefix: | kt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block [abstract] + References No definition available. + Details
Name: | kt_TextBlockAbstract
Namespace Prefix: | kt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration