[Amended] Treasury share disposal: results report

What happened

Treasury Share Disposal Results Report 6.2

KEC Holdings Co., Ltd.

Amendment Report (Correction) August 18, 2026

1. Disclosure document being amended: Treasury Share Disposal Results Report 2. Original submission date of the disclosure document being amended: February 13, 2026 3. Amended items

Item: 2. Details of the disposal report, (c) Type and number of shares reported for disposal Reason for amendment: Return of exchange-target treasury shares following the partial repurchase and retirement of the exchangeable bonds Before amendment: 2,947,249 common shares After amendment: 2,142,958 common shares

Item: 3. Disposal details - see "[3. Before Amendment]" / "[3. After Amendment]" below Item: 4. Whether the disposal report details match the actual disposal - see "[4. Before Amendment]" / "[4. After Amendment]" below Item: 5. Treasury share holding status after disposal - see "[5. Before Amendment]" / "[5. After Amendment]" below

[3. Before Amendment] (Unit: KRW, shares) Date: February 13, 2026; Type: Common shares; Disposed quantity: 2,947,249; Disposal price per share: 746; Total disposal amount: 2,198,647,754; Disposal target/brokerage firm handling the sale: Synergy Investment Advisory Co., Ltd. Total: Disposed quantity 2,947,249; Disposal price per share 746; Total disposal amount 2,198,647,754

Note 1) The above treasury share disposal relates to the Series 3 unregistered, interest-bearing, unsecured, privately placed exchangeable bonds the Company issued on February 13, 2026. Note 2) The disposal price per share is the exchange price of the exchangeable bonds. Note 3) The actual disposal of treasury shares is finalized at the time the exchange right under the exchangeable bonds is exercised, and the relevant treasury shares are currently deposited with the Korea Securities Depository. Note 4) For details concerning the issuance of these exchangeable bonds and the decision on treasury share disposal, please refer to the "Material Event Report (Decision to Issue Exchangeable Bonds)" and "Material Event Report (Decision on Treasury Share Disposal)" disclosures.

[3. After Amendment] (Unit: KRW, shares) Date: February 13, 2026; Type: Common shares; Disposed quantity: 2,142,958; Disposal price per share: 746; Total disposal amount: 1,598,647,754; Disposal target/brokerage firm handling the sale: Synergy Investment Advisory Co., Ltd. Total: Disposed quantity 2,142,958; Disposal price per share 746; Total disposal amount 1,598,647,754

Note 1) In connection with the Series 3 unregistered, interest-bearing, unsecured, privately placed exchangeable bonds the Company issued on February 13, 2026, of the total 2,947,249 treasury shares that are the exchange-target shares for these bonds, 804,291 shares are to be returned to the Company, as the Company plans to repurchase these bonds and subsequently retire them. Note 2) For details concerning the issuance of these exchangeable bonds and the decision on treasury share disposal, please refer to the Company's "Material Event Report (Decision to Issue Exchangeable Bonds)" dated 2026-02-05 and "Material Event Report (Decision on Treasury Share Disposal)" dated 2026-08-18.

[4. Before Amendment] Planned disposal shares (common, shares): 2,947,249; Actual total disposed shares (common, shares): 2,947,249; Match: Match; Reason for any difference: -

[4. After Amendment] Planned disposal shares (common, shares): 2,142,958; Actual total disposed shares (common, shares): 2,142,958; Match: Match; Reason for any difference: -

[5. Before Amendment] [As of February 13, 2026] (Unit: KRW million, shares, %) Common shares - Holdings under Article 165-3 of the Act (A): Quantity -; Ratio -; Total value - Common shares - Holdings under trust contracts etc. under Article 165-3 of the Act (B): Quantity -; Ratio -; Contract amount - Common shares - Total (A+B): Quantity 0; Ratio 0; Amount 0 Total - (A+B): Quantity 0; Ratio 0; Amount 0

Note 1) In connection with the Series 3 unregistered, interest-bearing, unsecured, privately placed exchangeable bonds the Company issued on February 13, 2026, the total 2,947,249 treasury shares that are the exchange-target shares for these bonds were deemed to have been subject to an exchange request on the same date, and were accordingly excluded from the above treasury share holding status after disposal.

[5. After Amendment] [As of February 13, 2026] (Unit: KRW million, shares, %) Common shares - Holdings under Article 165-3 of the Act (A): Quantity 804,291; Ratio 1.72; Total value 0 Common shares - Holdings under trust contracts etc. under Article 165-3 of the Act (B): Quantity -; Ratio -; Contract amount - Common shares - Total (A+B): Quantity 804,291; Ratio 1.72; Amount 0 Total - (A+B): Quantity 804,291; Ratio 1.72; Amount 0

Note 1) The above holding status includes 804,291 shares, being the exchange-target shares excluding the 2,142,958 shares for which exchange has been completed, as the Company plans to repurchase these exchangeable bonds and subsequently retire them.

Treasury Share Disposal Results Report

To the Governor of the Financial Supervisory Service February 13, 2026

Company name: KEC Holdings Co., Ltd. CEO: Park Myeong-deok Head office address: 5, Mabang-ro 10-gil, Seocho-gu, Seoul (Phone) 02-2025-5000 (Website) http://www.kecholdings.co.kr Preparer: (Title) Head of Finance Team; (Name) Yoon Seok-hyeon; (Phone) 02-2025-5000

1. Name and address of the issuer (a) Name: KEC Holdings Co., Ltd. (b) Address: 5, Mabang-ro 10-gil, Seocho-gu, Seoul

2. Details of the disposal report (a) Date of material event report submission: February 5, 2026 (original submission); February 11, 2026 (amendment); August 18, 2026 (amendment) (b) Disposal period: From February 13, 2026 to February 13, 2026 (c) Type and number of shares reported for disposal: 2,142,958 KEC Holdings Co., Ltd. registered common shares

3. Disposal details (Unit: KRW, shares) Date: February 13, 2026; Type: Common shares; Disposed quantity: 2,142,958; Disposal price per share: 746; Total disposal amount: 1,598,647,754; Disposal target/brokerage firm handling the sale: Synergy Investment Advisory Co., Ltd. Total: Disposed quantity 2,142,958; Disposal price per share 746; Total disposal amount 1,598,647,754

Note 1) In connection with the Series 3 unregistered, interest-bearing, unsecured, privately placed exchangeable bonds the Company issued on February 13, 2026, of the total 2,947,249 treasury shares that are the exchange-target shares for these bonds, 804,291 shares are to be returned to the Company, as the Company plans to repurchase these bonds and subsequently retire them. Note 2) For details concerning the issuance of these exchangeable bonds and the decision on treasury share disposal, please refer to the Company's "Material Event Report (Decision to Issue Exchangeable Bonds)" dated 2026-02-05 and "Material Event Report (Decision on Treasury Share Disposal)" dated 2026-08-18.

4. Whether the disposal report details match the actual disposal Planned disposal shares (common, shares): 2,142,958; Actual total disposed shares (common, shares): 2,142,958; Match: Match; Reason for any difference: -

5. Treasury share holding status after disposal [As of February 13, 2026] (Unit: KRW million, shares, %) Common shares - Holdings under Article 165-3 of the Act (A): Quantity 804,291; Ratio 1.72; Total value 0 Common shares - Holdings under trust contracts etc. under Article 165-3 of the Act (B): Quantity -; Ratio -; Contract amount - Common shares - Total (A+B): Quantity 804,291; Ratio 1.72; Amount 0 Total - (A+B): Quantity 804,291; Ratio 1.72; Amount 0

Note 1) The above holding status includes 804,291 shares, being the exchange-target shares excluding the 2,142,958 shares for which exchange has been completed, as the Company plans to repurchase these exchangeable bonds and subsequently retire them.