[Amended] Material event report (treasury share disposal) (subsidiary)

What happened

Kolon / [Amended] Material Event Report (Treasury Share Disposal Decision) (Material Management Matter of Subsidiary) / (2026.08.31)

Amendment Report 2026.08.31

1. Disclosure document being amended: Material Event Report (Treasury Share Disposal Decision) 2. Initial filing date of the disclosure document being amended: 2026.06.30 3. Amended items:

Item 1. Shares to be disposed of (shares), Reason for amendment: amendment due to finalization of the number of recipients. Before: common shares 320,160; other-class shares 11,040. After: common shares 317,288; other-class shares 9,332. Item 3. Expected disposal amount (KRW). Before: common shares 3,038,318,400; other-class shares 154,339,200. After: common shares 3,011,063,120; other-class shares 130,461,360. Item 6. Method of disposal - Other (shares). Before: 331,200. After: 326,620. Item 7. Counterparty to the disposal. Before: Employees on the payroll as of July 1, 2026 who meet the payment requirements (2,760 persons). After: Employees on the payroll as of July 1, 2026 who meet the payment requirements (2,333 persons).

[Additional disclosure items] Item 3. Number of shares disposed of by counterparty (shares). Before: total 2,760 persons (320,160 common shares, 11,040 preferred shares). After: total 2,333 persons (317,288 common shares, 9,332 preferred shares).

[Additional disclosure items] Item 5. Expected dilutive effect on share value. (omitted) Before: "This volume represents only 1.27% of total shares issued, so the dilutive effect on share value is expected to be limited." After: "This volume represents only 1.25% of total shares issued, so the dilutive effect on share value is expected to be limited."

Item 13. Other matters to note for investment decisions, amended due to a change in the term "outside director" to "independent director." Before: "Item 11, the disposal decision date above, is the board resolution date; regarding attendance of the auditor (an audit committee member who is not an outside director), all of the Company's audit committee members are outside directors, so this item is not applicable." After: "Item 11, the disposal decision date above, is the board resolution date; regarding attendance of the auditor (an audit committee member who is not an independent director), all of the Company's audit committee members are independent directors, so this item is not applicable."

Material Event Report / Matter Subject to Exchange Reporting Obligation Material Management Matter Report of the Subsidiary Kolon Global Corp.

To: Financial Services Commission / Korea Exchange June 30, 2026

Company name: Kolon Global Corp. Representative director: Kim Young-bum Head office address: 11 Kolon-ro, Gwacheon-si, Gyeonggi-do (Telephone) 02-3677-3114 (Website) http://www.kolonglobal.com Preparer: (Title) General Manager (Name) Lee Su-jin (Telephone) 02-3677-4407

Treasury Share Disposal Decision

1. Shares to be disposed of Common shares: 317,288 Other-class shares: 9,332

2. Price of shares to be disposed of (KRW) Common shares: 9,490 Other-class shares: 13,980

3. Expected disposal amount (KRW) Common shares: 3,011,063,120 Other-class shares: 130,461,360

4. Expected disposal period Start date: July 1, 2026 End date: August 31, 2026

5. Purpose of disposal: Payment of employee incentive bonuses

6. Method of disposal Pro-rata disposal to shareholders (shares): - Off-hours block trade (shares): - Over-the-counter disposal (shares): - Other (shares): 326,620

7. Counterparty to the disposal: Employees on the payroll as of July 1, 2026 who meet the payment requirements (2,333 persons)

8. Entrusted investment broker: -

9. Treasury share holdings before disposal Acquired within the scope of distributable profit (shares): Common shares: 63,154 (ratio 0.2%); Other-class shares: - (ratio -) Other acquisitions (shares): Common shares: 265,123 (ratio 1.0%); Other-class shares: 12,360 (ratio 0.1%)

10. Holding/disposal plan: Approved at the shareholders' meeting on March 31, 2026

11. Disposal decision date: June 30, 2026 - Attendance of independent (outside) directors*: Present (persons): 5 / Absent (persons): 0 - Attendance of the auditor (an audit committee member who is not an independent (outside) director*): - 12. Daily sell-order quantity limit: Common shares: - / Other-class shares: - * Listed companies use "independent director," unlisted companies use "outside director"

13. Other matters to note for investment decisions - This is a disposal of treasury shares for the purpose of employee compensation, within the scope of the treasury-share holding/disposal plan approved at the shareholders' meeting on March 31, 2026. - The Company's remaining treasury shares will be disposed of or retired by separate resolution by the time of the 2027 annual general shareholders' meeting, in accordance with the treasury-share holding/disposal plan. If any remaining shares are not disposed of or retired within this period, a revised holding/disposal plan will be established and submitted for approval at the following annual general shareholders' meeting. - The "other-class shares" above are non-voting preferred shares with dividend rights issued by the Company. - Item 2, the price of shares to be disposed of, and Item 3, the expected disposal amount, above are calculated using the closing price on the business day preceding the board resolution date. - Item 6, the method of disposal, above will be carried out by crediting shares to the accounts of the recipients (employees), and represents the combined number of common and preferred shares to be disposed of. - The number of counterparties in Item 7 above is an estimate of employees on the payroll as of July 1, 2026 who meet the payment requirements, and the actual recipients as of the payment date may change depending on administrative processing, etc. - The "ratio (%)" in Item 9 above is a percentage of total shares issued. - Item 11, the disposal decision date, above is the board resolution date; regarding attendance of the auditor (an audit committee member who is not an independent director), all of the Company's audit committee members are independent directors, so this item is not applicable. - Item 12, the daily sell-order quantity limit, above is not applicable, as this is not an on-exchange sale through the securities market.

[Treasury Share Holdings Before the Treasury Share Disposal Decision] (Unit: shares) Acquisition method / Type of share / Opening balance / Acquired (+) / Disposed (-) / Retired (-) / Closing balance / Remarks

Acquired within distributable profit, direct acquisition on-exchange: Common shares: 63,154 / - / - / - / 63,154 / -; Other-class shares: - / - / - / - / - / - Direct acquisition off-exchange: Common shares: - / - / - / - / - / -; Other-class shares: - / - / - / - / - / - Tender offer: Common shares: - / - / - / - / - / -; Other-class shares: - / - / - / - / - / - Subtotal (a): Common shares: 63,154 / - / - / - / 63,154 / -; Other-class shares: - / - / - / - / - / - Acquired under trust contract, held by trustee: Common shares: - / - / - / - / - / -; Other-class shares: - / - / - / - / - / - Held in kind: Common shares: - / - / - / - / - / -; Other-class shares: - / - / - / - / - / - Subtotal (b): Common shares: - / - / - / - / - / -; Other-class shares: - / - / - / - / - / - Other acquisitions (c): Common shares: 264,619 / 504 / - / - / 265,123 / increase from share-appraisal-rights (merger) settlement; Other-class shares: 12,360 / - / - / - / 12,360 / - Total (a+b+c): Common shares: 327,773 / 504 / - / - / 328,277 / -; Other-class shares: 12,360 / - / - / - / 12,360 / -

[Additional Disclosure Items] 1. Relationship of each counterparty with the Company or its largest shareholder: Company employees 2. Reason for selecting the counterparties: To motivate employees and encourage long-term retention 3. Number of shares disposed of by counterparty: Total 2,333 persons (317,288 common shares, 9,332 preferred shares). The number of counterparties is an estimate of employees on the payroll as of July 1, 2026 who meet the payment requirements, and the actual recipients as of the payment date, and the resulting number of shares disposed of, may change depending on administrative processing, etc. 4. Basis for price determination: Based on the closing price on the business day preceding the board resolution date. 5. Expected dilutive effect on share value: The Company's treasury shares will be disposed of by crediting them to the accounts of the recipient employees, and will be subject to a one-year mandatory holding period. This volume represents only 1.25% of total shares issued, so the dilutive effect on share value is expected to be limited. 6. Other matters to note for investment decisions: The number of shares to be disposed of may change somewhat due to recipients failing to meet the payment requirements, etc., and the shares will be subject to a one-year mandatory holding period from the payment date.