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

What happened

Material Event Report (Decision on Early Acquisition of Self-Convertible Bonds) 6.0 Secern AI Inc. Correction Notice (Report) September 17, 2026

1. Corrected Public Disclosure Document: Material Event Report (Decision on Early Acquisition of Self-Convertible Bonds)

2. Initial Submission Date of Corrected Public Disclosure Document: September 1, 2026

3. Correction Details Item | Reason for Correction | Before Correction | After Correction All Items | Withdrawal due to cancellation of exercise of early redemption right (Put Option) by bondholder (seller) | - | -

Material Event Report / Stock Exchange Reporting Obligation Financial Services Commission / Korea Exchange September 17, 2026

Company Name: Secern AI Inc. Representative Director: Nam Un-sung Headquarters Address: 12, Teheran-ro 22-gil, Gangnam-gu, Seoul Telephone: 02-6277-7810 Website: http://secern.ai Document Preparer: Group Manager, Kwon Ryan, Telephone: 02-6277-7810

Decision on Early Acquisition of Self-Convertible Bonds

1. Type of Bond: Series 5, Convertible Bond 2. Bond Issuance Date: September 29, 2025 3. Bond Issuance Method: Private Placement 4. Bond Maturity Date: September 29, 2029 5. Face Value (Electronic Registration) of Bond (KRW): 5,000,000,000 6. Face Value (Electronic Registration) of Bond Subject to Acquisition (KRW): - 7. Acquisition Decision Date: - 8. Acquisition Amount: Amount (KRW): - | Calculation Basis: - | Payment (Scheduled) Date: - | Source of Acquisition Funds: - 9. Acquisition Method: - 10. Reason for Early Acquisition: - 11. Future Handling Plan: - 12. Matters Regarding Conversion: Conversion Ratio (%): - | Conversion Price as of Report Date (KRW/share): - | Type of Stock to be Issued upon Conversion: - | Number of Shares: - | Ratio to Total Outstanding Shares (%): - | Conversion Request Period Start Date: - | End Date: - 13. Face Value (Electronic Registration) Balance of Bond After Acquisition (KRW): 5,000,000,000 14. Whether Subject to Fair Trade Commission Reporting: Not Applicable 15. Other Matters for Reference in Investment Decisions: Withdrawal due to cancellation of exercise of early redemption right (Put Option) by bondholder (seller)

Matters Regarding Seller Seller Name | Relationship with Company or Major Shareholder | Selection Process | Transaction Details and Plans Within 6 Months Before and After Acquisition Decision | Face Value of Sold Bond (KRW) | Remarks - | - | - | - | - | -