# EDGAR Filing Document

**Accession Number:** 0000892450
**File Stem:** 0001193125-25-321718
**Filing Date:** 2025-12
**Character Count:** 4082
**Document Hash:** 26fb1531315039116e5aea47270f126e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-321718.hdr.sgml**: 20251217

**ACCESSION NUMBER**: 0001193125-25-321718

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251217

**FILED AS OF DATE**: 20251217

**DATE AS OF CHANGE**: 20251217

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** KT CORP
- **CENTRAL INDEX KEY:** 0000892450
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14926
- **FILM NUMBER:** 251577263

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 206 JUNGJA DONG, BUNDANG GU,
- **STREET 2:** SUNGNAM, KYUNGGI DO, 463-711,
- **CITY:** KOREA M5
- **PROVINCE COUNTRY:** M5
- **BUSINESS PHONE:** 82-31-727-0114

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** KT GWANGHWAMUN BUILDING EAST,
- **STREET 2:** 33 JONGNO-3-GIL, JONGNO-GU,
- **CITY:** SEOUL, 110-130, KOREA M5
- **PROVINCE COUNTRY:** M5
- **ZIP:** 110-130

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KOREA TELECOM CORP
- **DATE OF NAME CHANGE:** 19971006

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KOREA TELECOM
- **DATE OF NAME CHANGE:** 19950130

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**Form 6-K** 

**REPORT OF FOREIGN PRIVATE ISSUER** 

**PURSUANT TO RULE 13a-16 OR 15d-16** 

**OF THE SECURITIES EXCHANGE ACT OF 1934** 

**For the month of December 2025** 

**Commission File Number 1-14926** 

## KT Corporation
**(Translation of registrant's name into English)** 

**90, Buljeong-ro,** 

**Bundang-gu, Seongnam-si,** 

**Gyeonggi-do,** 

**Korea** 

**(Address of principal executive offices)** 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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| | |
|:---|:---|
| Dated: December 17, 2025 | Dated: December 17, 2025 |
| KT Corporation | KT Corporation |
| By: | /s/ Jaegil Choi |
| Name: | Jaegil Choi |
| Title: | IRO |
| By: | /s/ Sanghyun Cho |
| Name: | Sanghyun Cho |
| Title: | IR Team Leader |

---

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**Early Resignation of Outside Director** 

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; 1. Date of Change in Outside Director | &nbsp;&nbsp;&nbsp; 1. Date of Change in Outside Director | March 26, 2024 |
| &nbsp;&nbsp;&nbsp; 2. Number of Outside Directors Affected | &nbsp;&nbsp;&nbsp; 2. Number of Outside Directors Affected | 1 (Early Resignation) |
| &nbsp;&nbsp;&nbsp; 3. Status Prior to the Change | Number of Registered Directors | 10 |
| &nbsp;&nbsp;&nbsp; 3. Status Prior to the Change | Number of Outside Directors | 8 |
| &nbsp;&nbsp;&nbsp; 3. Status Prior to the Change | Percentage of Outside Directors | 80.0 |
| &nbsp;&nbsp;&nbsp; 4. Status Subsequent to the Change | Number of Registered Directors | 9 |
| &nbsp;&nbsp;&nbsp; 4. Status Subsequent to the Change | Number of Outside Directors | 7 |
| &nbsp;&nbsp;&nbsp; 4. Status Subsequent to the Change | Percentage of Outside Directors | 77.8 |
| &nbsp;&nbsp;&nbsp; 5. Other Information Material to Investors | &nbsp;&nbsp;&nbsp; 5. Other Information Material to Investors | Outside director Seung Ah Theresa Cho ceased to hold office pursuant to Article 542-8(2) of the Korean Commercial Act. |

---

**[Details of Early Resignation of Outside Director]** 

• Name: Seung Ah Theresa Cho

• Date of Birth: October 1967

• Gender: Female

• Date of Appointment: June 30, 2023

• Initial Term: 3 years

• Date of Termination of Directorship: March 26, 2024

• Type of Termination of Directorship: Termination by operation of law

• Reason: Confirmation of a statutory disqualification under the Korean Commercial Act