[Amended] Treasury share disposal: results report

What happened

Amendment report (notice) September 29, 2026 1. Disclosure document being amended: Treasury share disposal: results report 2. Original filing date of the disclosure document being amended: September 29, 2025 3. Amended items Item: "2. Matters concerning the disposal report - c. Type and number of shares disposed", reason: recovery of treasury shares reserved for exchange following early redemption of the exchangeable bonds, before: common shares 984,781, after: common shares 0 Item: "3. Details of disposal", see Notes 1)/2) below Item: "4. Whether the disposal report matches the actual disposal", see Notes 3)/4) below Item: "5. Holding status of treasury shares, etc. after disposal", see Notes 5)/6) below [Additional disclosure items], see Notes 7)/8) below

[Before amendment, Note 1)] (Unit: KRW, shares) Date September 29, 2025; type common shares; quantity ordered -; quantity disposed 984,781; disposal price per share 2,331; total disposal price 2,295,524,511; disposal counterparty/consignment securities firm -; financial investment business registration number - Total: quantity disposed 984,781; price per share 2,331; total 2,295,524,511 Note 1) The above treasury-share disposal relates to the 11th unregistered unsecured private exchangeable bonds the Company issued on September 29, 2025. Note 2) The disposal price per share is the exchange price of the exchangeable bonds. Note 3) The actual disposal of these treasury shares is finalized when the exchange right under the exchangeable bonds is exercised; the shares are currently held in deposit with the Korea Securities Depository. Note 4) For details of the exchangeable bonds, please refer to the "Material event report (decision to issue exchangeable bonds)" and "Material event report (treasury share disposal decision)" the Company disclosed on September 19, 2025.

[After amendment, Note 2)] (Unit: KRW, shares) Date September 29, 2025; type common shares; all fields (quantity ordered, quantity disposed, disposal price per share, total disposal price, disposal counterparty, financial investment business registration number): - Total: all fields - Note 1) The above treasury-share disposal relates to the 11th unregistered unsecured private exchangeable bonds the Company issued on September 29, 2025. Note 2) On August 31, 2026 a bondholder exercised an early-redemption put option, and the Company completed repayment of principal and interest on September 29; as of the date of this disclosure, the 984,781 common shares reserved for exchange under the 11th exchangeable bonds are to be returned to the Company. Note 3) For details of these exchangeable bonds, please refer to the "Decision to acquire own exchangeable bonds before maturity" and "Material event report (treasury share disposal decision)" the Company disclosed on September 29, 2026.

[Before amendment, Note 3)] Shares planned to be disposed: common shares 984,781; other class shares - Total shares disposed: common shares 984,781; other class shares - Match: Match; reason for discrepancy, if any: -

[After amendment, Note 4)] Shares planned to be disposed: common shares -; other class shares - Total shares disposed: common shares -; other class shares - Match: Match; reason for discrepancy, if any: -

[Before amendment, Note 5)] [As of September 29, 2025] (Unit: KRW, shares, %) Common shares, holdings under Article 165-3 (A): -; holdings under a trust agreement, etc. (B): -; total (A+B): - (all fields nil) Total row: same as above

[After amendment, Note 6)] [As of September 29, 2026] (Unit: KRW, shares, %) Common shares, holdings under Article 165-3 (A): quantity 984,781; ratio 3.49%; total value KRW 4,522,200,500; holdings under a trust agreement, etc. (B): -; total (A+B): quantity 984,781; ratio 3.49%; amount KRW 4,522,200,500 Total row: same as above Note 1) The ratio is of the 984,781 treasury shares to the 28,231,302 total shares issued. Note 2) The total value above is the book value applying the acquisition cost to the number of treasury shares.

[Before amendment, Note 7)] "6. Relationship of each disposal counterparty with the Company or the largest shareholder, and basis for selection, etc." - Kyobo Hyundai Mezzanine No. 1 Private Equity Fund: relationship with the Company or the largest shareholder -; basis for selection: considering the investor's funding capability and timing, etc., for the Company's management purposes; shares disposed: 643,500; note - - NH Investment & Securities Co., Ltd. (acting as trustee of Fund 1): relationship -; basis for selection: same reason; shares disposed: 214,500; note - - KB Securities Co., Ltd. (acting as trustee of Fund 2): relationship -; basis for selection: same reason; shares disposed: 126,780; note - Note 1) The number of shares disposed to each counterparty was calculated by simple arithmetic average based on each party's subscription ratio of the exchangeable bonds, rounding down fractions of a share; the actual number of shares may differ. Note 2) Details of each "fund": Fund 1, collective investment scheme "Orion Luxury KOSDAQ Venture General Private Investment Trust No. 83"; collective investment manager NH Investment & Securities Co., Ltd.; trustee Orion Asset Management Co., Ltd. Fund 2, collective investment scheme "Orion Luxury Mezzanine General Private Investment Trust No. 88"; collective investment manager KB Securities Co., Ltd.; trustee Orion Asset Management Co., Ltd.

[After amendment, Note 8)] 1. Relationship of each disposal counterparty with the Company or the largest shareholder: The disposal counterparties are Kyobo Hyundai Mezzanine No. 1 Private Equity Fund, NH Investment & Securities Co., Ltd. (Fund 1 trustee), and KB Securities Co., Ltd. (Fund 2 trustee); none has a special relationship with the Company or its largest shareholder. 2. Reason for selecting each disposal counterparty: considering the investor's funding capability and timing, etc., for the Company's management purposes (same reason for each of the three counterparties). 3. Number of shares disposed to each counterparty: all - 4. Basis for price calculation: The initial exchange price (disposal price) was set at 115.0% of the base price, the higher of (a) the arithmetic average of the one-month, one-week and most-recent-day volume-weighted average prices of Welcron common shares, each measured from the day before the board resolution date for issuing the bonds, and (b) the most-recent-day volume-weighted average price, rounding up any amount below one won. 5. Other matters for reference in investment decisions: Not applicable.

Treasury share disposal: results report To the Governor of the Financial Supervisory Service September 29, 2026 Company name: Welcron Co., Ltd. CEO: Lee Young-gyu Head office address: 12 Digital-ro 27-gil, Guro-gu, Seoul (Phone) 02-830-5975 (Website) https://www.welcron.com Preparer: (Title) Head of Future Strategy Office (Name) Lee Hoon-gyu (Phone) 02-830-5975

1. Name and address of the issuer a. Name: Welcron Co., Ltd. b. Address: 12 Digital-ro 27-gil, Guro-gu, Seoul

2. Matters concerning the disposal report a. Material event report filing date: September 19, 2025 (original); September 29, 2026 (amendment) b. Disposal period: September 29, 2025 to September 29, 2025 (this is the exchangeable bonds' issuance date; the actual disposal period is fixed when the exchange right is exercised) c. Type and number of shares disposed: Welcron registered common shares, 0 shares

3. Details of disposal (Unit: KRW, shares) Date September 29, 2025; type common shares; all fields (quantity ordered, quantity disposed, disposal price per share, total disposal price, counterparty, registration number): - Total: - (all fields) Note 1) The above treasury-share disposal relates to the 11th unregistered unsecured private exchangeable bonds the Company issued on September 29, 2025. Note 2) On August 31, 2026 a bondholder exercised an early-redemption put option, and the Company completed repayment of principal and interest on September 29; as of the date of this disclosure, the 984,781 common shares reserved for exchange under the 11th exchangeable bonds are to be returned to the Company. Note 3) For details of these exchangeable bonds, please refer to the "Decision to acquire own exchangeable bonds before maturity" and "Material event report (treasury share disposal decision)" the Company disclosed on September 29, 2026.

4. Whether the disposal report matches the actual disposal Shares planned to be disposed: common shares -; other class shares - Total shares disposed: common shares -; other class shares - Match: Match; reason for discrepancy, if any: -

5. Holding status of treasury shares, etc. after disposal [As of September 29, 2026] (Unit: KRW, shares, %) Common shares, holdings under Article 165-3 (A): quantity 984,781; ratio 3.49%; total value KRW 4,522,200,500; holdings under a trust agreement, etc. (B): -; total (A+B): quantity 984,781; ratio 3.49%; amount KRW 4,522,200,500 Total row: same as above Note 1) The ratio is of the 984,781 treasury shares to the 28,231,302 total shares issued. Note 2) The total value above is the book value applying the acquisition cost to the number of treasury shares.

[Additional disclosure items] 1. Relationship of each disposal counterparty with the Company or the largest shareholder: The disposal counterparties are Kyobo Hyundai Mezzanine No. 1 Private Equity Fund, NH Investment & Securities Co., Ltd. (Fund 1 trustee), and KB Securities Co., Ltd. (Fund 2 trustee); none has a special relationship with the Company or its largest shareholder. 2. Reason for selecting each disposal counterparty: same reason as above for each of the three counterparties. 3. Number of shares disposed to each counterparty: all - 4. Basis for price calculation: same as above (115.0% of the base price, rounding up fractions below one won). 5. Other matters for reference in investment decisions: Not applicable.