[Amended] Material event report (decision to redeem own convertible bonds early)

What happened

Material Event Report (Decision to Acquire Own Convertible Bonds Before Maturity) 6.0 Exion Group Co., Ltd. Amendment Report (Correction) July 30, 2026 1. Disclosure document being amended: Decision to Acquire Own Convertible Bonds Before Maturity 2. Original filing date of the disclosure document being amended: December 12, 2025 3. Amendment details

Item: 11. Future handling plan; reason for amendment: correction of handling plan Before amendment: Retire KRW 5,000,000,000 (expected date: 2026-07-24); remaining balance (KRW 4,001,000,000) to be decided later by the board After amendment: Retire KRW 5,000,000,000 (retirement date: 2026-07-24); retire KRW 1,000,000,000 (expected date: 2026-07-31); remaining balance (KRW 3,001,000,000) to be decided later by the board

Item: 12. Matters related to conversion - shares to be issued upon conversion; before amendment: number of shares 650,040, ratio to total shares outstanding 4.52%; after amendment: number of shares 487,571, ratio to total shares outstanding 3.39%

Item: 15. Other matters material to investment decisions; reason for amendment: correction of handling plan - The expected retirement date of KRW 5,000,000,000 in item 11 above is the date on which cancellation is requested from the Korea Securities Depository, the electronic registration institution for these convertible bonds. The cancellation processing period may change depending on the schedule of relevant institutions. - The expected retirement date of KRW 1,000,000,000 in item 11 above is the date on which cancellation is requested from the Korea Securities Depository, the electronic registration institution for these convertible bonds. The cancellation processing period may change depending on the schedule of relevant institutions.

Material Event Report / Exchange Reporting Obligation To the Financial Services Commission / Korea Exchange December 12, 2025 Company name: Exion Group Co., Ltd. CEO: Lee Seung-cheol, Jeong Jae-yeong Head office address: Samgwang Building, 633 Samseong-ro, Gangnam-gu, Seoul (Samseong-dong) (Phone) 070-7435-5472 (Website) http://www.exiongroup.co.kr Preparer: (Title) Executive Director (Name) Lee Hyeon-sik (Phone) 02-2191-3514

Decision to Acquire Own Convertible Bonds Before Maturity

1. Type of bond: Series 11, unregistered unsecured private-placement convertible bonds 2. Bond issuance date: November 13, 2025 3. Bond issuance method: Private placement 4. Bond maturity date: November 13, 2028 5. Total face (electronically registered) value of the bonds (KRW): 10,001,000,000 6. Face (electronically registered) value of the bonds to be acquired (KRW): 9,001,000,000 7. Acquisition decision date: December 12, 2025 8. Acquisition amount: KRW 9,001,000,000; basis for determination: principal payment (expected) date December 12, 2025; source of acquisition funds: own funds 9. Acquisition method: Off-exchange purchase 10. Reason for acquisition before maturity: Mutual agreement with the bondholder 11. Future handling plan: Retire KRW 5,000,000,000 (retirement date: 2026-07-24); retire KRW 1,000,000,000 (expected date: 2026-07-31); remaining balance (KRW 3,001,000,000) to be decided later by the board 12. Matters related to conversion: conversion ratio 100%; conversion price as of the report date (KRW/share): 6,155; type of shares to be issued upon conversion: Exion Group Co., Ltd. registered common shares; number of shares: 487,571; ratio to total shares outstanding: 3.39%; conversion request period: start date November 13, 2026; end date October 13, 2028 13. Face (electronically registered) balance of the bonds remaining after acquisition (KRW): 1,000,000,000 14. Whether subject to Fair Trade Commission reporting: Not applicable 15. Other matters material to investment decisions - This bond acquisition concerns the early acquisition, before maturity, of the Series 11 unregistered unsecured private-placement convertible bonds issued by the company on November 13, 2025. - The above "7. Acquisition decision date" is the board resolution date for this bond acquisition. - Regarding the above "8. Acquisition amount," the redemption amount for the target bonds is the principal of KRW 9,001,000,000, and no interest, YTC or other amounts are paid in connection with the early redemption. - The expected retirement date of KRW 1,000,000,000 in the above "11. Future handling plan" is the date on which cancellation is requested from the Korea Securities Depository, the electronic registration institution for these convertible bonds. The cancellation processing period may change depending on the schedule of relevant institutions. - For the remaining own convertible bonds, whether to resell or retire them will be finally determined through a future board resolution. - Regarding the above "12. Matters related to conversion," the number of shares in "shares to be issued upon conversion" is the number of shares to be issued if the balance of the bonds acquired this time, after retirement (cancellation), is converted; the ratio to total shares outstanding was calculated based on the total shares outstanding (14,393,455 shares) as of the preparation reference date of this report.

[Matters Related to the Seller] Choi Gye-rim: relationship to the company or largest shareholder -; relationship: original subscriber of these bonds; transactions within 6 months before/after the acquisition decision -; face value of bonds sold (KRW): 9,001,000,000; note -