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

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OSP Co., Ltd. / Material Event Report (Decision to Redeem Own Convertible Bonds Before Maturity) / 6.0

Material Event Report / Korea Exchange filing requirement To the Financial Services Commission / Korea Exchange, July 24, 2026 Company name: OSP Co., Ltd. | CEO: Kang Jae-gu Head office: 11 Saneopdanji-ro 2-gil, Seongdong-myeon, Nonsan-si, Chungcheongnam-do Phone: 041-734-8445; Website: http://www.osppetfood.com Preparer: CEO Kang Jae-gu, Phone 070-5046-4593

Decision to Redeem Own Convertible Bonds Before Maturity 1. Type of bond: 2nd series, unregistered interest-bearing unsecured private convertible bond 2. Bond issuance date: August 26, 2025 3. Issuance method: Private placement 4. Maturity date: August 26, 2028 5. Total face (electronically registered) amount: KRW 7,000,000,000 6. Face amount subject to redemption: KRW 7,000,000,000 7. Date of redemption decision: July 24, 2026 8. Redemption amount: KRW 7,129,108,982 - basis: principal plus accrued interest; payment (scheduled) date: July 29, 2026; source of funds: own funds 9. Redemption method: Off-market purchase 10. Reason for pre-maturity redemption: Decision made through negotiation with bondholders 11. Future plans: To be determined by future board resolution, including possible resale 12. Conversion matters: conversion ratio 100%; conversion price as of report date KRW 2,366/share; shares to be issued upon conversion: OSP registered common shares, 2,958,579 shares, 22.49% of total shares outstanding; conversion exercise period: August 26, 2026~July 26, 2028 13. Remaining face amount after redemption: None 14. Subject to Fair Trade Commission reporting: Not applicable 15. Other matters relevant to investment judgment 1) The interest portion of item 8 was calculated by applying the maturity-guaranteed yield (2.00% annual, compounded quarterly) agreed with bondholders, from the bond issuance date. 2) The payment (scheduled) date in item 8 is the date redemption is completed: ① 1st redemption (2026.07.24): bond face amount KRW 4.8 billion plus interest of KRW 88,112,336; ② 2nd redemption (2026.07.29): bond face amount KRW 2.2 billion plus interest of KRW 40,996,646. 3) The "conversion price as of report date" in item 12 reflects adjustments for post-issuance market-price changes and the 2026 par-value consolidation, rights offerings (3 rounds), and bonus issue. 4) The "shares to be issued upon conversion" in item 12 assumes full conversion of the entire convertible bond being redeemed.

[Sellers] NH Investment & Securities Co., Ltd. (as trustee for Funds 1,2) - no relationship to company/largest shareholder - bondholder of this bond - no related transactions within 6 months - face amount sold KRW 1,700,000,000 (Notes 1,2) Samsung Securities Co., Ltd. (as trustee for Fund 3) - KRW 700,000,000 (Note 3) KB Securities Co., Ltd. (as trustee for Fund 4) - KRW 1,600,000,000 (Note 4) KB Securities Co., Ltd. (as trustee for Funds 5,6) - KRW 800,000,000 (Notes 5,6) NH Investment & Securities Co., Ltd. (as trustee for Fund 7) - KRW 700,000,000 (Note 7) Samsung Securities Co., Ltd. (as trustee for Funds 8,9) - KRW 1,200,000,000 (Notes 8,9) Korea Investment & Securities Co., Ltd. (as trustee for Fund 10) - KRW 300,000,000 (Note 10) Note 1) Fund 1: Orion Myeongpum KOSDAQ Venture General Private Investment Trust No. 115 Note 2) Fund 2: No. 116 Note 3) Fund 3: No. 108 Note 4) Fund 4: No. 112 Note 5) Fund 5: Susung KOSDAQ Venture SN6 General Private Investment Trust Note 6) Fund 6: Susung KOSDAQ Venture D6 General Private Investment Trust Note 7) Fund 7: Susung KOSDAQ Venture D7 General Private Investment Trust Note 8) Fund 8: Susung KOSDAQ Venture SN3 General Private Investment Trust Note 9) Fund 9: Susung KOSDAQ Venture SN4 General Private Investment Trust Note 10) Fund 10: Shinyoung Plan-up KOSDAQ Venture Public-Offering Stock (Susung Advisory) B General Private Investment Trust