XML 74 R61.htm IDEA: XBRL DOCUMENT
v3.25.1

Investments in Associates and Joint Ventures (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Text block Explanatory [Abstract] |
Summary of Details of Associates | (1) Details of associates as of December 31, 2023 and 2024, are as follows:
|  | Percentage of ownership (%) |  |  | Location |  |  | Closing month |
| December 31, 2023 |  |  | December 31, 2024 |  |  |  |  |  |  |
KIF Investment Fund |  |  | 33.3 | % |  |  | 33.3 | % |  |  | Korea |  |  |  | December |
K Bank Inc. |  |  | 33.7 | % |  |  | 33.7 | % |  |  | Korea |  |  |  | December |
HD Hyundai Robotics Co., Ltd. 1 |  |  | 10.0 | % |  |  | 10.0 | % |  |  | Korea |  |  |  | December |
Megazone Cloud Corporation 1 |  |  | 6.8 | % |  |  | 6.8 | % |  |  | Korea |  |  |  | December |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 44.6 | % |  |  | 44.6 | % |  |  | Korea |  |  |  | December |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 28.6 | % |  |  | 28.6 | % |  |  | Korea |  |  |  | December |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 35.3 | % |  |  | 35.3 | % |  |  | Korea |  |  |  | December |
| 1 | As of December 31, 2024, although the Group has less than 20% ownership in ordinary share, this entity is included in investments in associates as the Group has significant influence in determining the operational and financial policies.
Summary of Changes in Investments in Associates and Joint Ventures | (2) Changes in investments in associates and joint ventures for the years ended December 31, 2023 and 2024, are as follows:
|  | 2023 |
(In millions of Korean won) |  | Beginning |  |  | Acquisition (Disposal) |  |  | Share of net profit (loss) from associates and joint ventures 1 |  |  | Others |  |  | Ending |
KIF Investment Fund |  | ￦ | 170,979 |  |  |  | — |  |  |  | 5,443 |  |  |  | 632 |  |  |  | 177,054 |
K Bank Inc. |  |  | 852,756 |  |  |  | — |  |  |  | 1,089 |  |  |  | 19,036 |  |  |  | 872,881 |
HD Hyundai Robotics Co., Ltd. |  |  | 49,372 |  |  |  | — |  |  |  | (1,637 | ) |  |  | (1 | ) |  |  | 47,734 |
Megazone Cloud Corporation |  |  | 136,199 |  |  |  | — |  |  |  | (4,583 | ) |  |  | 78 |  |  |  | 131,694 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 23,589 |  |  |  | — |  |  |  | (105 | ) |  |  | — |  |  |  | 23,484 |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 22,123 |  |  |  | (500 | ) |  |  | 3,494 |  |  |  | — |  |  |  | 25,117 |
IGIS Professional Investors Private Investment Real Estate Investment LLC No 395 |  |  | 16,620 |  |  |  | — |  |  |  | (4,678 | ) |  |  | — |  |  |  | 11,942 |
LS Marine Solution Co., Ltd. |  |  | — |  |  |  | — |  |  |  | 255 |  |  |  | 23,237 |  |  |  | 23,492 |
Others |  |  | 209,084 |  |  |  | 101,887 |  |  |  | (34,912 | ) |  |  | (32,568 | ) |  |  | 243,491 |
Total |  | ￦ | 1,480,722 |  |  |  | 101,387 |  |  |  | (35,634 | ) |  |  | 10,414 |  |  |  | 1,556,889 |
|  | 2024 |
(In millions of Korean won) |  | Beginning |  |  | Acquisition (Disposal) |  |  | Share of net profit (loss) from associates and joint ventures 1 |  |  | Others |  |  | Ending |
KIF Investment Fund |  | ￦ | 177,054 |  |  |  | — |  |  |  | 12,396 |  |  |  | 1,675 |  |  |  | 191,125 |
K Bank Inc. |  |  | 872,881 |  |  |  | — |  |  |  | 43,614 |  |  |  | 1,146 |  |  |  | 917,641 |
HD Hyundai Robotics Co., Ltd. |  |  | 47,734 |  |  |  | — |  |  |  | (1,138 | ) |  |  | (766 | ) |  |  | 45,830 |
Megazone Cloud Corporation |  |  | 131,694 |  |  |  | — |  |  |  | (3,047 | ) |  |  | 2,126 |  |  |  | 130,773 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 23,484 |  |  |  | — |  |  |  | (110 | ) |  |  | — |  |  |  | 23,374 |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 25,117 |  |  |  | (275 | ) |  |  | (8,046 | ) |  |  | (845 | ) |  |  | 15,951 |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 11,942 |  |  |  | — |  |  |  | (2,215 | ) |  |  | — |  |  |  | 9,727 |
LS Marine Solution Co., Ltd. |  |  | 23,492 |  |  |  | (19,656 | ) |  |  | 237 |  |  |  | (4,073 | ) |  |  | — |
Others |  |  | 243,491 |  |  |  | 41,542 |  |  |  | (35,662 | ) |  |  | (21,560 | ) |  |  | 227,811 |
Total |  | ￦ | 1,556,889 |  |  |  | 21,611 |  |  |  | 6,029 |  |  |  | (22,297 | ) |  |  | 1,562,232 |
1 | The amount represents the fair value of investment at the time the Company lost control (Refer to note above).
Summary of Financial Information of Associates and Joint Ventures | (3) Summarized financial information of associates and joint ventures as at and for the years ended December 31, 2023 and 2024, is as follows:
(in millions of Korean won) |  | December 31, 2023 |
|  | Current assets |  |  | Non-current assets |  |  | Current liabilities |  |  | Non-current liabilities |
KIF Investment Fund |  | ￦ | 128,344 |  |  |  | 402,819 |  |  |  | — |  |  |  | — |
K Bank Inc. |  |  | 21,320,790 |  |  |  | 89,812 |  |  |  | 19,541,076 |  |  |  | 4,516 |
HD Hyundai Robotics Co., Ltd. |  |  | 251,868 |  |  |  | 134,424 |  |  |  | 106,557 |  |  |  | 9,775 |
Megazone Cloud Corporation |  |  | 874,778 |  |  |  | 267,605 |  |  |  | 341,679 |  |  |  | 205,087 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 2,985 |  |  |  | 49,631 |  |  |  | 11 |  |  |  | — |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 482 |  |  |  | 87,528 |  |  |  | 101 |  |  |  | — |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 5,690 |  |  |  | 145,769 |  |  |  | 107,553 |  |  |  | — |
LS Marine Solution Co., Ltd . |  |  | 66,767 |  |  |  | 80,307 |  |  |  | 23,906 |  |  |  | 207 |
(in millions of Korean won) |  | December 31, 2024 |
|  | Current assets |  |  | Non-current assets |  |  | Current liabilities |  |  | Non-current liabilities |
KIF Investment Fund |  | ￦ | 164,128 |  |  |  | 409,248 |  |  |  | — |  |  |  | — |
K Bank Inc. |  |  | 31,085,824 |  |  |  | 105,858 |  |  |  | 29,176,699 |  |  |  | 10,453 |
HD Hyundai Robotics Co., Ltd. |  |  | 235,763 |  |  |  | 120,778 |  |  |  | 101,300 |  |  |  | 4,422 |
Megazone Cloud Corporation |  |  | 985,584 |  |  |  | 470,477 |  |  |  | 606,267 |  |  |  | 254,221 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 161 |  |  |  | 52,209 |  |  |  | 11 |  |  |  | — |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 435 |  |  |  | 55,796 |  |  |  | 404 |  |  |  | — |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 4,558 |  |  |  | 170,770 |  |  |  | 133,665 |  |  |  | — |
(In millions of Korean won) |  | 2023 |
|  | Operating revenue |  |  | Profit (loss) for the year |  |  | Other comprehensive income (loss) |  |  | Total comprehensive income (loss) |  |  | Dividends received from associates |
KIF Investment Fund |  | ￦ | 33,017 |  |  |  | 16,330 |  |  |  | — |  |  |  | 16,330 |  |  |  | 1,139 |
K Bank Inc. |  |  | 946,559 |  |  |  | 10,560 |  |  |  | 56,609 |  |  |  | 67,169 |  |  |  | — |
Hyundai Robotics Co., Ltd. |  |  | 167,949 |  |  |  | (17,513 | ) |  |  | (1,093 | ) |  |  | (18,606 | ) |  |  | — |
Megazone Cloud Corporation |  |  | 1,410,078 |  |  |  | (34,760 | ) |  |  | (3,021 | ) |  |  | (37,781 | ) |  |  | — |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 6 |  |  |  | (234 | ) |  |  | — |  |  |  | (234 | ) |  |  | — |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 19,849 |  |  |  | 12,227 |  |  |  | — |  |  |  | 12,227 |  |  |  | — |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | — |  |  |  | (406 | ) |  |  | — |  |  |  | (406 | ) |  |  | — |
LS Marine Solution Co., Ltd . |  |  | 70,779 |  |  |  | 11,618 |  |  |  | (289 | ) |  |  | 11,329 |  |  |  | — |
(In millions of Korean won) |  | 2024 |
|  | Operating revenue |  |  | Profit (loss) for the year |  |  | Other comprehensive income (loss) |  |  | Total comprehensive income (loss) |  |  | Dividends received from associates |
KIF Investment Fund |  | ￦ | 57,113 |  |  |  | 37,187 |  |  |  | — |  |  |  | 37,187 |  |  |  | 2,660 |
K Bank Inc. |  |  | 1,226,412 |  |  |  | 136,113 |  |  |  | 806 |  |  |  | 136,919 |  |  |  | — |
Hyundai Robotics Co., Ltd. |  |  | 226,288 |  |  |  | (13,269 | ) |  |  | 1,311 |  |  |  | (11,958 | ) |  |  | — |
Megazone Cloud Corporation |  |  | 1,733,976 |  |  |  | (18,575 | ) |  |  | 25,775 |  |  |  | 7,200 |  |  |  | — |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 5 |  |  |  | (246 | ) |  |  | — |  |  |  | (246 | ) |  |  | — |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 23,674 |  |  |  | (25,851 | ) |  |  | — |  |  |  | (25,851 | ) |  |  | 1,505 |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | — |  |  |  | (442 | ) |  |  | — |  |  |  | (442 | ) |  |  | — |
Summary of Reconciliation of Carrying Amount of Interests in the Associates and Joint Ventures | (4) Details of a reconciliation of the summarized financial information to the carrying amount of interests in the associates and joint ventures as at and for the years ended December 31, 2023 and 2024, are as follows:
(in millions of Korean won) |  | 2023 |
|  | Net assets (a) |  |  | Percentage of ownership (b) |  |  | Share in net assets (c)=(a)x(b) |  |  | Intercompany transaction and others (d) |  |  | Book amount (c)+(d) |
KIF Investment Fund |  | ￦ | 531,164 |  |  |  | 33.33 | % |  |  | 177,054 |  |  |  | — |  |  |  | 177,054 |
K Bank Inc. |  |  | 1,865,010 |  |  |  | 33.72 | % |  |  | 628,910 |  |  |  | 243,971 |  |  |  | 872,881 |
Hyundai Robotics Co., Ltd. |  |  | 269,960 |  |  |  | 10.00 | % |  |  | 26,996 |  |  |  | 20,738 |  |  |  | 47,734 |
Megazone Cloud Corporation |  |  | 547,786 |  |  |  | 6.83 | % |  |  | 37,404 |  |  |  | 94,290 |  |  |  | 131,694 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 52,605 |  |  |  | 44.64 | % |  |  | 23,484 |  |  |  | — |  |  |  | 23,484 |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 87,908 |  |  |  | 28.57 | % |  |  | 25,117 |  |  |  | — |  |  |  | 25,117 |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 43,905 |  |  |  | 35.29 | % |  |  | 15,496 |  |  |  | (3,554 | ) |  |  | 11,942 |
LS Marine Solution Co., Ltd . |  |  | 122,961 |  |  |  | 7.30 | % |  |  | 8,972 |  |  |  | 14,520 |  |  |  | 23,492 |
(in millions of Korean won) |  | 2024 |
|  | Net assets (a) |  |  | Percentage of ownership (b) |  |  | Share in net assets (c)=(a)x(b) |  |  | Intercompany transaction and others (d) |  |  | Book amount (c)+(d) |
KIF Investment Fund |  | ￦ | 573,376 |  |  |  | 33.33 | % |  |  | 191,125 |  |  |  | — |  |  |  | 191,125 |
K Bank Inc. |  |  | 2,004,530 |  |  |  | 33.72 | % |  |  | 675,958 |  |  |  | 241,683 |  |  |  | 917,641 |
Hyundai Robotics Co., Ltd. |  |  | 250,819 |  |  |  | 10.00 | % |  |  | 25,082 |  |  |  | 20,748 |  |  |  | 45,830 |
Megazone Cloud Corporation |  |  | 548,558 |  |  |  | 6.83 | % |  |  | 37,457 |  |  |  | 93,316 |  |  |  | 130,773 |
IGIS No. 468-1 General Private Real Estate Investment Company |  |  | 52,359 |  |  |  | 44.64 | % |  |  | 23,374 |  |  |  | — |  |  |  | 23,374 |
KT-DSC Creative Economy Youth Start-up Investment Fund |  |  | 55,827 |  |  |  | 28.57 | % |  |  | 15,951 |  |  |  | — |  |  |  | 15,951 |
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC |  |  | 41,663 |  |  |  | 35.29 | % |  |  | 14,705 |  |  |  | (4,978 | ) |  |  | 9,727 |

X
- Definition The disclosure of the reconciliation between the investment derecognised and the assets and liabilities recognised on the transition from the equity method to accounting for assets and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 11 -IssueDate 2024-01-01 -Paragraph C10 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=11&code=ifrs-tx-2024-en-r&anchor=para_C10&doctype=Appendix&subtype=C -URIDate 2024-03-27 + Details
Name: | ifrs-full_DisclosureOfReconciliationBetweenInvestmentDerecognisedAndAssetsAndLiabilitiesRecognisedTransitionFromEquityMethodToAccountingForAssetsAndLiabilitiesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of associates. [Refer: Total for all associates [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph B4 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B4_d&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of change in investments in associates and joint ventures. + References No definition available. + Details
Name: | kt_DisclosureOfChangeInInvestmentsInAssociatesAndJointVenturesExplanatory
Namespace Prefix: | kt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of financial information about associates and joint ventures. + References No definition available. + Details
Name: | kt_DisclosureOfFinancialInformationAboutAssociatesAndJointVenturesExplanatory
Namespace Prefix: | kt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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