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

What happened

Material Event Report / Matter Subject to Exchange Disclosure Obligation To: Financial Services Commission / Korea Exchange Date: July 20, 2026 Company name: Alchera Inc. Representative director: Hwang Young-kyu Head office address: 3rd floor, 653 Nonhyeon-ro, Gangnam-gu, Seoul (Nonhyeon-dong) Phone: 02-2135-6874 Website: http://alchera.ai Preparer: CFO Kim Yong-ho, Phone: 02-2135-6874

Decision to Redeem Own Convertible Bonds Before Maturity

1. Type of bond: Series 3, unregistered, interest-bearing, unsecured, privately placed convertible bonds 2. Bond issuance date: April 21, 2025 3. Bond issuance method: Private placement 4. Bond maturity date: April 21, 2028 5. Total face (electronically registered) value of the bonds (KRW): 6,000,000,000 6. Face (electronically registered) value of the bonds to be redeemed (KRW): 450,000,000 7. Redemption decision date: July 20, 2026 8. Redemption amount: Amount (KRW) 484,126,200; basis for calculation: the (scheduled) principal and interest payment date is July 21, 2026; source of redemption funds: the Company's own funds 9. Redemption method: Over-the-counter purchase 10. Reason for redemption before maturity: Separate agreement with the bondholder 11. Future handling plan: To be decided at a future board meeting 12. Matters concerning conversion: Conversion ratio (%) 100; conversion price as of the report date (KRW/share) 1,639; type of shares to be issued upon conversion: Alchera Inc. registered common shares; number of shares 704,697; ratio to total shares issued (%) 1.66; conversion request period: start date April 21, 2026, end date March 21, 2028 13. Remaining face (electronically registered) value of the bonds after redemption (KRW): 705,000,000 14. Whether subject to Fair Trade Commission reporting: Not applicable 15. Other material matters for investors' reference: - This bond redemption concerns the before-maturity redemption of the Company's Series 3 unregistered, unsecured, privately placed convertible bonds issued on April 21, 2025. - The "7. Redemption decision date" above is the board resolution date for this bond redemption. - The "8. Redemption amount" above is the amount mutually agreed with the seller. - In "12. Matters concerning conversion," the number of shares to be issued upon conversion is the number of shares that would be issued if the current remaining balance of the convertible bonds (after excluding shares already converted from this series) were converted, and the ratio to total shares issued is calculated based on the total number of shares issued as of the preparation date of this report (42,557,524 shares). - No specific plan has yet been determined for how the Company will handle these bonds after acquiring them; whether to resell or retire them will be finally determined through a future board resolution.

[Matters Concerning the Seller] Seller name: Hanyang Securities Co., Ltd.; Relationship to the Company or largest shareholder: none; Selection process: the bondholder of this bond; Transaction history and plans within 6 months before and after the redemption decision: none; Face value of bonds sold (KRW): 450,000,000; Remarks: none