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v3.22.1

General Information (Tables) | 12 Months Ended
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Dec. 31, 2021
Text block [abstract] |
Summary of Consolidated Subsidiaries | The consolidated subsidiaries as at December 31, 2020 and 2021, are as follows:
|  |  |  |  |  | Controlling percentage ownership 1 (%) |  |
Subsidiary |  | Type of business |  | Location |  | December 31, 2020 |  | December 31, 2021 |  | Closing month
KT Linkus Inc. |  | Public telephone maintenance |  | Korea |  | 92.4% |  | 92.4% |  | December
KT Submarine Co., Ltd. 2,4 |  | Submarine cable construction and maintenance |  | Korea |  | 39.3% |  | 39.3% |  | December
KT Telecop Co., Ltd. |  | Security service |  | Korea |  | 86.8% |  | 86.8% |  | December
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) |  | Data communication |  | Korea |  | 67.1% |  | 73.0% |  | December
KT Service Bukbu Inc. |  | Opening services of fixed line |  | Korea |  | 67.3% |  | 67.3% |  | December
KT Service Nambu Inc. |  | Opening services of fixed line |  | Korea |  | 77.3% |  | 77.3% |  | December
KT Commerce Inc. |  | B2C, B2B service |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Strategic Investment Fund No.2 |  | Investment fund |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Strategic Investment Fund No.3 |  | Investment fund |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Strategic Investment Fund No.4 |  | Investment fund |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Strategic Investment Fund No.5 |  | Investment fund |  | Korea |  | 100.0% |  | 100.0% |  | December
BC-VP Strategic Investment Fund No.1 |  | Investment fund |  | Korea |  | 100.0% |  | 100.0% |  | December
|  |  |  |  |  | Controlling percentage ownership 1 (%) |  |
Subsidiary |  | Type of business |  | Location |  | December 31, 2020 |  | December 31, 2021 |  | Closing month
BC Card Co., Ltd. |  | Credit card business |  | Korea |  | 69.5% |  | 69.5% |  | December
VP Inc. |  | Payment security service for credit card, others |  | Korea |  | 50.9% |  | 50.9% |  | December
H&C Network Co., Ltd. |  | Call center for financial sectors |  | Korea |  | 100.0% |  | 100.0% |  | December
BC Card China Co., Ltd. |  | Software development and data processing |  | China |  | 100.0% |  | 100.0% |  | December
INITECH Co., Ltd. 4 |  | Internet banking ASP and security solutions |  | Korea |  | 58.2% |  | 58.2% |  | December
Smartro Co., Ltd. |  | VAN (Value Added Network) business |  | Korea |  | 64.5% |  | 64.5% |  | December
KTDS Co., Ltd. 4 |  | System integration and maintenance |  | Korea |  | 95.5% |  | 95.5% |  | December
KT M&S Co., Ltd. |  | PCS distribution |  | Korea |  | 100.0% |  | 100.0% |  | December
GENIE Music Corporation 2,4 |  | Online music production and distribution |  | Korea |  | 36.2% |  | 36.2% |  | December
KT MOS Bukbu Co., Ltd. 4 |  | Telecommunication facility maintenance |  | Korea |  | 100.0% |  | 100.0% |  | December
KT MOS Nambu Co., Ltd. 4 |  | Telecommunication facility maintenance |  | Korea |  | 98.4% |  | 98.4% |  | December
KT Skylife Co., Ltd. 4 |  | Satellite TV |  | Korea |  | 50.3% |  | 50.3% |  | December
Skylife TV Co., Ltd. |  | TV contents provider |  | Korea |  | 92.6% |  | 100.0% |  | December
KT Estate Inc. |  | Residential building development and supply |  | Korea |  | 100.0% |  | 100.0% |  | December
KT AMC Inc. |  | Asset management and consulting services |  | Korea |  | 100.0% |  | 100.0% |  | December
KT NEXR Co., Ltd. |  | Cloud system implementation |  | Korea |  | 100.0% |  | 100.0% |  | December
KTGDH Co., Ltd. |  | Data center development and related service |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Sat Inc. |  | Satellite communication business |  | Korea |  | 100.0% |  | 100.0% |  | December
Nasmedia, Co., Ltd. 3,4 |  | Solution provider and IPTV advertisement sales business |  | Korea |  | 44.0% |  | 44.0% |  | December
KT Sports Inc. |  | Management of sports group |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Music Contents Fund No.2 |  | Music contents investment business |  | Korea |  | 100.0% |  | 100.0% |  | December
KT-Michigan Global Contents Fund |  | Content investment business |  | Korea |  | 88.6% |  | 88.6% |  | December
KTCS Corporation 2,4 |  | Database and online information provider |  | Korea |  | 31.9% |  | 32.2% |  | December
KTIS Corporation 2,4 |  | Database and online information provider |  | Korea |  | 30.8% |  | 31.4% |  | December
KT M Mobile Inc. |  | Special category telecommunications operator and sales of communication device |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Investment Co., Ltd. |  | Technology business finance |  | Korea |  | 100.0% |  | 100.0% |  | December
Whowho&Company., Ltd. |  | Software development and supply |  | Korea |  | 100.0% |  | 100.0% |  | December
PlayD Co., Ltd. |  | Advertising agency |  | Korea |  | 70.4% |  | 70.4% |  | December
Next Connect PFV Inc. |  | Residential building development and supply |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Rwanda Networks Ltd. |  | Network installation and management |  | Rwanda |  | 51.0% |  | 51.0% |  | December
|  |  |  |  |  | Controlling percentage ownership 1 (%) |  |
Subsidiary |  | Type of business |  | Location |  | December 31, 2020 |  | December 31, 2021 |  | Closing month
AOS Ltd. |  | System integration and maintenance |  | Rwanda |  | 51.0% |  | 51.0% |  | December
KT Japan Co., Ltd. |  | Foreign telecommunication business |  | Japan |  | 100.0% |  | 100.0% |  | December
East Telecom LLC |  | Fixed line internet business |  | Uzbekistan |  | 91.6% |  | 91.6% |  | December
KT America, Inc. |  | Foreign investment business |  | USA |  | 100.0% |  | 100.0% |  | December
PT. BC Card Asia Pacific |  | Software development and supply |  | Indonesia |  | 99.9% |  | 99.9% |  | December
KT Hong Kong Telecommunications Co., Ltd. |  | Fixed line telecommunication business |  | Hong Kong |  | 100.0% |  | 100.0% |  | December
Korea Telecom Singapore Pte. Ltd. |  | Foreign investment business |  | Singapore |  | 100.0% |  | 100.0% |  | December
Texnoprosistem LLC |  | Fixed line internet business |  | Uzbekistan |  | 100.0% |  | 100.0% |  | December
Nasmedia Thailand Co., Ltd. |  | Internet advertising solution |  | Thailand |  | 99.9% |  | 99.9% |  | December
KT Hopemate |  | Manufacturing |  | Korea |  | 100.0% |  | 100.0% |  | December
K-REALTY RENTAL HOUSING REIT 3 |  | Residential building |  | Korea |  | 88.6% |  | 88.6% |  | December
Storywiz Co., Ltd. |  | Contents and software development and supply |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) |  | Telecommunication facility construction and maintenance |  | Korea |  | 100.0% |  | 100.0% |  | December
KT Studio Genie Co., Ltd. |  | Data communication service and data communication construction business |  | Korea |  | — |  | 100.0% |  | December
KHS Corporation |  | Operation and maintenance of facilities |  | Korea |  | — |  | 100.0% |  | December
Lolab Co., Ltd. |  | Truck transportation and trucking arrangement business |  | Korea |  | — |  | 80.0% |  | December
HCN Co., Ltd. |  | Cable television service |  | Korea |  | — |  | 100.0% |  | December
MEDIA GENIE Co., Ltd. |  | TV contents provider |  | Korea |  | — |  | 100.0% |  | December
KT Seezn Co., Ltd. |  | Movies, videos and TV contents production and distribution |  | Korea |  | — |  | 100.0% |  | December
BOOK CLUB MILLIE 3 |  | Book contents service |  | Korea |  | — |  | 38.6% |  | December
KT ES Pte. Ltd. |  | Foreign investment business |  | Singapore |  | — |  | 57.6% |  | December
Epsilon Global Communications Pte. Ltd. |  | Network service industry |  | Singapore |  | — |  | 100.0% |  | December
Epsilon Telecommunications (SP) Pte. Ltd. |  | Fixed line telecommunication business |  | Singapore |  | — |  | 100.0% |  | December
Epsilon Telecommunications (US) Pte. Ltd. |  | Fixed line telecommunication business |  | Singapore |  | — |  | 100.0% |  | December
Epsilon Telecommunications Limited |  | Fixed line telecommunication business |  | UK |  | — |  | 100.0% |  | December
7D Digital Limited |  | Software development |  | UK |  | — |  | 100.0% |  | December
Epsilon Telecommunications (HK) Limited |  | Fixed line telecommunication business |  | Hong kong |  | — |  | 100.0% |  | December
Epsilon US Inc. |  | Fixed line telecommunication business |  | USA |  | — |  | 100.0% |  | December
Epsilon Telecommunications (BG) EOOD |  | Employee support service |  | Bulgaria |  | — |  | 100.0% |  | December
Epsilon M E A General Trading LLC 3 |  | Local counter work |  | Dubai |  | — |  | 49.0% |  | December
Nasmedia-KT Alpha Future Growth Strategic Investment Fund |  | Investment fund |  | Korea |  | — |  | 100.0% |  | December
KT Strategic Investment Fund 6 |  | Investment fund |  | Korea |  | — |  | 100.0% |  | December
Altimedia Corporation |  | Software development and delivery |  | Korea |  | — |  | 100.0% |  | December
|  |  |  |  |  |  |  | Controlling percentage ownership 1 (%) |  |
Subsidiary |  |  |  | Type of business |  | Location |  | December 31, 2020 |  | December 31, 2021 |  | Closing month
Alticast B.V. |  |  |  | Software development and delivery |  | Netherlands |  | — |  | 100.0% |  | December
Alticast Company Limited |  |  |  | Software development and delivery |  | Vietnam |  | — |  | 100.0% |  | December
Wirecard (Vietnam) Company Limited |  | Software sales business |  | Vietnam |  | — |  | 100.0% |  | December
KT Philippines |  |  |  | Fixed line telecommunication business |  | Philippines |  | 40.0% |  | 100.0% |  | December
1 | Sum of the ownership interests owned by the Controlling Company and subsidiaries.
2 | Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company can exercise the majority voting rights in its decision-making process at all times considering the historical voting pattern at the shareholders’ meetings.
3 | Although the Controlling Company owns less than 50% ownership in this entity, this entity is consolidated as the Controlling Company holds the majority of voting right based on an agreement with other investors.
4 | The number of subsidiaries’ treasury stock is deducted from the total number of shares when calculating the controlling percentage ownership.
| 1.3 | Changes in Scope of Consolidation
Subsidiaries newly included and excluded in the consolidation during the year ended December 31, 2021:
Changes |  | Location |  | Name of Subsidiary |  | Reason
Included |  | Korea |  | KT Studio Genie Co., Ltd. |  | Newly established
Included |  | Korea |  | Lolab Co., Ltd. |  | Newly established
Included |  | Korea |  | KHS Corporation |  | Transferred
Included |  | Korea |  | HCN Co., Ltd. |  | Transferred
Included |  | Korea |  | MEDIA GENIE Co., Ltd. |  | Transferred
Included |  | Korea |  | KT Seezn Co., Ltd. |  | Transferred
Included |  | Korea |  | BOOK CLUB MILLIE |  | Transferred
Included |  | Singapore |  | KT ES Pte. Ltd. |  | Newly established
Included |  | Singapore |  | Epsilon Global Communications Pte. Ltd. |  | Transferred
Included |  | Singapore |  | Epsilon Telecommunications (SP) Pte. Ltd. |  | Transferred
Included |  | Singapore |  | Epsilon Telecommunications (US) Pte. Ltd. |  | Transferred
Included |  | UK |  | Epsilon Telecommunications Limited |  | Transferred
Included |  | UK |  | 7D Digital Limited |  | Transferred
Included |  | Hong kong |  | Epsilon Telecommunications (HK) Limited |  | Transferred
Included |  | USA |  | Epsilon US Inc. |  | Transferred
Changes |  | Location |  | Name of Subsidiary |  | Reason
Included |  | Bulgaria |  | Epsilon Telecommunications (BG) EOOD |  | Transferred
Included |  | Dubai |  | Epsilon M E A General Trading L.L.C |  | Transferred
Included |  | Korea |  | K-REALTY RENTAL HOUSING REIT V |  | Newly established
Included |  | Korea |  | Nasmedia-KT Alpha Future Growth Strategic Investment Fund |  | Newly established
Included |  | Korea |  | KT Strategic Investment Fund 6 |  | Newly established
Included |  | Korea |  | Altimedia Corporation |  | Transferred
Included |  | Netherlands |  | Alticast B.V. |  | Transferred
Included |  | Vietnam |  | Alticast Company Limited |  | Transferred
Included |  | Vietnam |  | Wirecard (Vietnam) Company Limited |  | Transferred
Included |  | Philippines |  | KT Philippines |  | Transferred
Excluded |  | Belgium |  | KT Belgium |  | Liquidated
Excluded |  | Korea |  | KT Powertel Co., Ltd. |  | Shares disposed
Excluded |  | China |  | Korea Telecom China Co., Ltd. |  | Liquidated
Excluded |  | Poland |  | KBTO Sp.z o. o. |  | Liquidated
Excluded |  | Korea |  | GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. |  | Liquidated
Excluded |  | Korea |  | KT M Hows Co., Ltd. |  | Merged
Excluded |  | Netherlands |  | KT Dutch B.V. |  | Liquidated
Excluded |  | Korea |  | KT Music Contents Fund No.1 |  | Liquidated
Excluded |  | Korea |  | Autopion Co., Ltd. |  | Shares disposed
Excluded |  | Korea |  | K-REALTY RENTAL HOUSING REIT V |  | Excluded from consolidation
Summarized information for consolidated subsidiaries as at and for the years ended December 31, 2019, 2020 and 2021 is as follows:
(In millions of Korean won) |  | December 31, 2019 |
|  | Total assets |  |  | Total liabilities |  |  | Operating revenue |  |  | Profit (loss) for the year |
KT Powertel Co., Ltd. |  | ￦ | 118,052 |  |  | ￦ | 19,766 |  |  | ￦ | 62,846 |  |  | ￦ | 3,085 |
KT Linkus Inc. |  |  | 70,494 |  |  |  | 62,088 |  |  |  | 97,892 |  |  |  | (2,258 | )
KT Submarine Co., Ltd. |  |  | 120,947 |  |  |  | 18,452 |  |  |  | 55,244 |  |  |  | 486 |
KT Telecop Co., Ltd. |  |  | 279,878 |  |  |  | 153,841 |  |  |  | 332,063 |  |  |  | (4,875 | )
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) |  |  | 279,818 |  |  |  | 74,769 |  |  |  | 323,065 |  |  |  | 1,426 |
KT Service Bukbu Inc. |  |  | 64,802 |  |  |  | 58,984 |  |  |  | 219,427 |  |  |  | (445 | )
KT Service Nambu Inc. |  |  | 63,917 |  |  |  | 55,548 |  |  |  | 266,148 |  |  |  | 280 |
BC Card Co., Ltd. 1 |  |  | 3,912,982 |  |  |  | 2,594,232 |  |  |  | 3,553,008 |  |  |  | 115,885 |
H&C Network Co. Ltd. 1 |  |  | 282,016 |  |  |  | 68,401 |  |  |  | 320,701 |  |  |  | (1,593 | )
Nasmedia Co., Ltd. 1 |  |  | 356,236 |  |  |  | 203,105 |  |  |  | 117,550 |  |  |  | 22,484 |
(In millions of Korean won) |  | 2019 |
|  | Total assets |  |  | Total liabilities |  |  | Operating revenue |  |  | Profit (loss) for the year |
KTDS Co., Ltd. 1 |  |  | 158,153 |  |  |  | 105,462 |  |  |  | 428,758 |  |  |  | 9,027 |
KT M Hows Co., Ltd. |  |  | 74,326 |  |  |  | 50,638 |  |  |  | 33,443 |  |  |  | 6,771 |
KT M&S Co., Ltd. |  |  | 248,142 |  |  |  | 215,777 |  |  |  | 813,498 |  |  |  | 12,732 |
GENIE Music Corporation |  |  | 234,131 |  |  |  | 80,952 |  |  |  | 230,480 |  |  |  | 7,658 |
KT MOS Bukbu Inc. |  |  | 33,376 |  |  |  | 28,841 |  |  |  | 63,761 |  |  |  | 353 |
KT MOS Nambu Inc. |  |  | 34,258 |  |  |  | 26,722 |  |  |  | 67,300 |  |  |  | 3,099 |
KT Skylife Co., Ltd. 1 |  |  | 848,276 |  |  |  | 142,839 |  |  |  | 704,996 |  |  |  | 56,008 |
KT Estate Inc. 1 |  |  | 1,686,000 |  |  |  | 295,706 |  |  |  | 485,686 |  |  |  | 48,552 |
KTGDH Co., Ltd. (KTSB Data service) |  |  | 10,437 |  |  |  | 1,628 |  |  |  | 3,977 |  |  |  | 344 |
KT Sat Inc. |  |  | 651,195 |  |  |  | 127,523 |  |  |  | 168,376 |  |  |  | 16,497 |
KT Sports Inc. |  |  | 15,603 |  |  |  | 8,333 |  |  |  | 55,241 |  |  |  | (464 | )
KT Music Contents Fund No.1 |  |  | 10,579 |  |  |  | 1,677 |  |  |  | 521 |  |  |  | 345 |
KT Music Contents Fund No.2 |  |  | 7,675 |  |  |  | 279 |  |  |  | 331 |  |  |  | 48 |
KT-Michigan Global Content Fund |  |  | 11,688 |  |  |  | 61 |  |  |  | 248 |  |  |  | (1,113 | )
Autopion Co., Ltd. |  |  | 7,460 |  |  |  | 4,894 |  |  |  | 5,604 |  |  |  | (302 | )
KT M mobile Inc. |  |  | 135,917 |  |  |  | 30,603 |  |  |  | 161,720 |  |  |  | (5,580 | )
KT Investment Co., Ltd. 1 |  |  | 73,463 |  |  |  | 56,212 |  |  |  | 13,375 |  |  |  | 847 |
KTCS Corporation 1 |  |  | 378,171 |  |  |  | 213,983 |  |  |  | 944,778 |  |  |  | 7,597 |
KTIS Corporation |  |  | 305,798 |  |  |  | 137,524 |  |  |  | 454,561 |  |  |  | 9,205 |
Next connect PFV Inc. |  |  | 385,412 |  |  |  | 24,275 |  |  |  | 1,590 |  |  |  | (5,898 | )
KT Japan Co., Ltd. 1 |  |  | 1,851 |  |  |  | 2,858 |  |  |  | 2,891 |  |  |  | 651 |
Korea Telecom China Co., Ltd. |  |  | 879 |  |  |  | 39 |  |  |  | 844 |  |  |  | 192 |
KT Dutch B.V. |  |  | 31,003 |  |  |  | 50 |  |  |  | — |  |  |  | (242 | )
Super iMax LLC |  |  | 3,568 |  |  |  | 5,304 |  |  |  | 4,604 |  |  |  | (631 | )
East Telecom LLC 1 |  |  | 20,857 |  |  |  | 16,302 |  |  |  | 17,186 |  |  |  | 2,140 |
KT AMERICA, INC |  |  | 4,611 |  |  |  | 537 |  |  |  | 6,808 |  |  |  | 572 |
PT. KT Indonesia |  |  | 8 |  |  |  | — |  |  |  | — |  |  |  | — |
KT Rwanda Networks Ltd. 2 |  |  | 132,461 |  |  |  | 183,164 |  |  |  | 18,013 |  |  |  | (31,662 | )
KT Belgium |  |  | 93,321 |  |  |  | 11 |  |  |  | — |  |  |  | (64 | )
KT ORS Belgium |  |  | 6,913 |  |  |  | 14 |  |  |  | — |  |  |  | (43 | )
KBTO sp.zo.o. |  |  | 1,767 |  |  |  | 245 |  |  |  | 519 |  |  |  | (3,457 | )
AOS Ltd. 2 |  |  | 12,337 |  |  |  | 3,993 |  |  |  | 6,982 |  |  |  | (591 | )
KT Hongkong Telecommunications Co., Ltd. |  |  | 5,126 |  |  |  | 2,923 |  |  |  | 13,321 |  |  |  | 586 |
KT Hopemate |  |  | 2,129 |  |  |  | 1,019 |  |  |  | 1,027 |  |  |  | (390 | )
GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. |  |  | 6,285 |  |  |  | 1,139 |  |  |  | 176 |  |  |  | 70 |
K-REALTY RENTAL HOUSING REIT 3 |  |  | 300 |  |  |  | — |  |  |  | — |  |  |  | — |
1 | These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements.
2 | At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities.
(In millions of Korean won) |  | December 31, 2020 |
|  | Total assets |  |  | Total liabilities |  |  | Operating revenues |  |  | Profit (loss) for the year |
KT Powertel Co., Ltd. |  | ￦ | 119,694 |  |  | ￦ | 18,833 |  |  | ￦ | 65,897 |  |  | ￦ | 3,809 |
KT Linkus Inc. |  |  | 58,372 |  |  |  | 54,022 |  |  |  | 84,519 |  |  |  | (3,212 | )
KT Submarine Co., Ltd. |  |  | 116,813 |  |  |  | 14,032 |  |  |  | 110,201 |  |  |  | 1,197 |
KT Telecop Co., Ltd. |  |  | 318,456 |  |  |  | 193,737 |  |  |  | 392,489 |  |  |  | 212 |
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) |  |  | 288,949 |  |  |  | 92,599 |  |  |  | 350,231 |  |  |  | 2,080 |
KT Service Bukbu Inc. |  |  | 60,825 |  |  |  | 56,554 |  |  |  | 217,451 |  |  |  | (871 | )
KT Service Nambu Inc. |  |  | 58,182 |  |  |  | 51,460 |  |  |  | 264,776 |  |  |  | (456 | )
BC Card Co., Ltd. 1 |  |  | 3,084,398 |  |  |  | 1,778,751 |  |  |  | 3,387,640 |  |  |  | 39,455 |
H&C Network 1 |  |  | 269,651 |  |  |  | 61,365 |  |  |  | 322,690 |  |  |  | 2,413 |
Nasmedia Co., Ltd. 1 |  |  | 422,039 |  |  |  | 221,371 |  |  |  | 113,136 |  |  |  | 23,134 |
KTDS Co., Ltd. 1 |  |  | 183,297 |  |  |  | 133,129 |  |  |  | 499,990 |  |  |  | 10,635 |
KT M Hows Co., Ltd. |  |  | 104,704 |  |  |  | 76,315 |  |  |  | 44,860 |  |  |  | 6,935 |
KT M&S Co., Ltd. |  |  | 231,260 |  |  |  | 197,306 |  |  |  | 661,533 |  |  |  | (485 | )
GENIE Music Corporation |  |  | 250,538 |  |  |  | 88,488 |  |  |  | 247,237 |  |  |  | 9,472 |
KT MOS Bukbu Co., Ltd. |  |  | 32,167 |  |  |  | 26,070 |  |  |  | 67,975 |  |  |  | 1,473 |
KT MOS Nambu Co., Ltd. |  |  | 33,765 |  |  |  | 24,947 |  |  |  | 71,259 |  |  |  | 1,639 |
KT Skylife Co., Ltd. 1 |  |  | 919,476 |  |  |  | 175,039 |  |  |  | 706,631 |  |  |  | 58,190 |
KT Estate Inc. 1 |  |  | 1,689,601 |  |  |  | 325,429 |  |  |  | 365,335 |  |  |  | 14,370 |
KTGDH Co., Ltd. (KTSB Data Service) |  |  | 11,003 |  |  |  | 1,669 |  |  |  | 4,282 |  |  |  | 538 |
KT Sat Inc. |  |  | 630,740 |  |  |  | 92,791 |  |  |  | 173,693 |  |  |  | 14,753 |
KT Sports Inc. |  |  | 26,572 |  |  |  | 14,940 |  |  |  | 46,608 |  |  |  | (2,516 | )
KT Music Contents Fund No.1 |  |  | 4,844 |  |  |  | 1,525 |  |  |  | 243 |  |  |  | 84 |
KT Music Contents Fund No.2 |  |  | 15,021 |  |  |  | 285 |  |  |  | 169 |  |  |  | (116 | )
KT-Michigan Global Contents Fund |  |  | 10,382 |  |  |  | 175 |  |  |  | 111 |  |  |  | (1,420 | )
Autopion Co., Ltd. |  |  | 4,903 |  |  |  | 4,961 |  |  |  | 6,174 |  |  |  | (2,459 | )
KT M Mobile Inc. |  |  | 129,011 |  |  |  | 27,281 |  |  |  | 163,472 |  |  |  | (3,617 | )
KT Investment Co., Ltd. 1 |  |  | 115,627 |  |  |  | 93,695 |  |  |  | 47,801 |  |  |  | 4,680 |
KTCS Corporation 1 |  |  | 384,919 |  |  |  | 215,175 |  |  |  | 933,006 |  |  |  | 11,323 |
KTIS Corporation |  |  | 294,289 |  |  |  | 126,894 |  |  |  | 454,172 |  |  |  | 7,387 |
Next Connect PFV Inc. |  |  | 394,268 |  |  |  | 37,271 |  |  |  | 26 |  |  |  | (7,101 | )
KT Japan Co., Ltd. 1 |  |  | 2,694 |  |  |  | 2,622 |  |  |  | 1,853 |  |  |  | 1 |
Korea Telecom China Co., Ltd. |  |  | 381 |  |  |  | 21 |  |  |  | 618 |  |  |  | (492 | )
KT Dutch B.V. 1 |  |  | 29,585 |  |  |  | 10,109 |  |  |  | 26,782 |  |  |  | 6,061 |
KT AMERICA, INC |  |  | 4,498 |  |  |  | 125 |  |  |  | 6,808 |  |  |  | 712 |
KT Rwanda Networks Ltd. 2 |  |  | 114,768 |  |  |  | 191,781 |  |  |  | 17,870 |  |  |  | (34,610 | )
KT Belgium |  |  | 87,608 |  |  |  | — |  |  |  | (81 | ) |  |  | (81 | )
KBTO sp.z o.o. |  |  | 438 |  |  |  | 117 |  |  |  | 490 |  |  |  | (2,823 | )
AOS Ltd. 2 |  |  | 11,812 |  |  |  | 3,875 |  |  |  | 5,719 |  |  |  | 296 |
KT Hong Kong Telecommunications Co., Ltd. |  |  | 6,159 |  |  |  | 2,800 |  |  |  | 16,386 |  |  |  | 1,308 |
KT Hopemate |  |  | 3,720 |  |  |  | 2,787 |  |  |  | 5,239 |  |  |  | (13 | )
GE Premier 1st Corporate Restructuring Real Estate Investment Trust Co. |  |  | 5,703 |  |  |  | 1,165 |  |  |  | 333 |  |  |  | 83 |
Storywiz Co., Ltd |  |  | 21,594 |  |  |  | 10,065 |  |  |  | 19,209 |  |  |  | (1,954 | )
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) |  |  | 138,220 |  |  |  | 102,963 |  |  |  | 346,040 |  |  |  | (8,461 | )
1 | These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements.
2 | At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities.
(In millions of Korean won) |  | December 31, 2021 |
|  | Total assets |  |  | Total liabilities |  |  | Operating revenues |  |  | Profit (loss) for the year |
KT Linkus Inc. |  | ￦ | 54,219 |  |  | ￦ | 53,316 |  |  | ￦ | 81,434 |  |  | ￦ | (3,095) |
KT Submarine Co., Ltd. |  |  | 110,390 |  |  |  | 10,736 |  |  |  | 31,374 |  |  |  | (3,183 | )
KT Telecop Co., Ltd. |  |  | 363,224 |  |  |  | 233,797 |  |  |  | 515,456 |  |  |  | 3,985 |
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) |  |  | 390,671 |  |  |  | 172,767 |  |  |  | 471,870 |  |  |  | (8,692 | )
KT Service Bukbu Inc. |  |  | 59,341 |  |  |  | 54,070 |  |  |  | 231,602 |  |  |  | 1,128 |
KT Service Nambu Inc. |  |  | 62,513 |  |  |  | 52,695 |  |  |  | 271,174 |  |  |  | 1,430 |
BC Card Co., Ltd. 1 |  |  | 3,933,427 |  |  |  | 2,481,004 |  |  |  | 3,580,970 |  |  |  | 120,308 |
H&C Network Co., Ltd. 1 |  |  | 88,616 |  |  |  | 4,993 |  |  |  | 227,604 |  |  |  | 11,995 |
Nasmedia Co., Ltd. 1 |  |  | 490,394 |  |  |  | 268,618 |  |  |  | 125,876 |  |  |  | 27,120 |
KTDS Co., Ltd. 1 |  |  | 341,358 |  |  |  | 199,831 |  |  |  | 632,899 |  |  |  | 21,464 |
KT M&S Co., Ltd. |  |  | 241,377 |  |  |  | 203,051 |  |  |  | 710,634 |  |  |  | 3,496 |
KT MOS Bukbu Co., Ltd. |  |  | 32,511 |  |  |  | 25,402 |  |  |  | 70,212 |  |  |  | 1,637 |
KT MOS Nambu Co., Ltd. |  |  | 36,741 |  |  |  | 26,053 |  |  |  | 71,940 |  |  |  | 2,016 |
KT Skylife Co., Ltd. 1 |  |  | 1,275,645 |  |  |  | 469,694 |  |  |  | 772,950 |  |  |  | 62,309 |
KT Estate Inc. 1 |  |  | 2,370,940 |  |  |  | 791,884 |  |  |  | 577,578 |  |  |  | 213,203 |
KTGDH Co., Ltd. |  |  | 11,464 |  |  |  | 1,560 |  |  |  | 4,423 |  |  |  | 553 |
KT Sat Inc. |  |  | 593,616 |  |  |  | 34,169 |  |  |  | 174,750 |  |  |  | 20,830 |
KT Sports Inc. |  |  | 29,524 |  |  |  | 19,740 |  |  |  | 67,612 |  |  |  | (2,039 | )
KT Music Contents Fund No.2 |  |  | 14,985 |  |  |  | 278 |  |  |  | 253 |  |  |  | (30 | )
KT-Michigan Global Contents Fund |  |  | 3,552 |  |  |  | 112 |  |  |  | 13,592 |  |  |  | 10,032 |
KT M Mobile Inc. |  |  | 144,175 |  |  |  | 40,749 |  |  |  | 204,641 |  |  |  | 5,918 |
KT Investment Co., Ltd. 1 |  |  | 87,366 |  |  |  | 66,108 |  |  |  | 21,040 |  |  |  | (697 | )
KTCS Corporation 1 |  |  | 416,750 |  |  |  | 234,172 |  |  |  | 968,499 |  |  |  | 19,034 |
KTIS Corporation |  |  | 369,361 |  |  |  | 177,619 |  |  |  | 487,801 |  |  |  | 24,944 |
Next Connect PFV Inc. |  |  | 518,441 |  |  |  | 167,963 |  |  |  | — |  |  |  | (6,519 | )
KT Japan Co., Ltd. 1 |  |  | 1,474 |  |  |  | 2,633 |  |  |  | 1,298 |  |  |  | (142 | )
KT America, Inc. |  |  | 4,884 |  |  |  | 101 |  |  |  | 6,508 |  |  |  | 201 |
KT Rwanda Networks Ltd. 2 |  |  | 125,860 |  |  |  | 236,389 |  |  |  | 23,328 |  |  |  | (28,770 | )
AOS Ltd. 2 |  |  | 11,539 |  |  |  | 2,812 |  |  |  | 6,942 |  |  |  | 823 |
KT Hong Kong Telecommunications Co., Ltd. |  |  | 6,613 |  |  |  | 1,346 |  |  |  | 18,825 |  |  |  | 1,313 |
KT Hopemate 1 |  |  | 6,311 |  |  |  | 2,978 |  |  |  | 12,538 |  |  |  | 116 |
KT Engineering Co., Ltd. (KT ENGCORE Co., Ltd.) |  |  | 185,850 |  |  |  | 144,832 |  |  |  | 284,998 |  |  |  | 366 |
KT Studio Genie Co., Ltd. 1,2 |  |  | 648,534 |  |  |  | 276,933 |  |  |  | 90,047 |  |  |  | (16,443 | )
Lolab Co., Ltd. |  |  | 26,726 |  |  |  | 897 |  |  |  | 2,107 |  |  |  | (134 | )
East Telecom LLC 1 |  |  | 35,904 |  |  |  | 22,088 |  |  |  | 11,960 |  |  |  | 2,487 |
KT ES Pte. Ltd. 1 |  |  | 240,331 |  |  |  | 80,597 |  |  |  | 15,157 |  |  |  | (6,355 | )
KT Philippines |  |  | 3,641 |  |  |  | 1,243 |  |  |  | — |  |  |  | — |
Altimedia Corporation 1 |  |  | 32,338 |  |  |  | 9,742 |  |  |  | 6,968 |  |  |  | 1,037 |
1 | These companies are the intermediate controlling companies of other subsidiaries and the above financial information is from their consolidated financial statements.
2 | At the end of the reporting period, convertible preferred stock issued by subsidiaries is included in liabilities.

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- Definition The disclosure of subsidiaries. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_17_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2021-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2021-en-r&anchor=para_16_b&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2021-01-01 -Paragraph B4 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2021-en-r&anchor=para_B4_a&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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