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

What happened

Material Event Report (Decision to Acquire Own Convertible Bonds Before Maturity) Ndfos Co., Ltd. Material Event Report / Korea Exchange Reporting Obligation To the Financial Services Commission / Korea Exchange September 30, 2026

Company name: Ndfos Co., Ltd. CEO: Kwon Oh-bin Head office: 224-7 Hansam-ro, Daeso-eup, Eumseong-gun, Chungcheongbuk-do Tel: 070-7662-2121 Website: http://www.ndfos.com Preparer: Head of Management Support Division Noh Ho-dol, Tel 070-7662-2121

Decision to Acquire Own Convertible Bonds Before Maturity

1. Type of bond: Series 6, unregistered bonds with coupon, unsecured private-placement convertible bonds 2. Bond issuance date: June 25, 2026 3. Bond issuance method: Private placement 4. Bond maturity date: June 25, 2029 5. Total face value (electronically registered) (KRW): 20,000,000,000 6. Face value (electronically registered) of bonds subject to acquisition (KRW): 11,000,000,000 7. Acquisition decision date: September 30, 2026 8. Acquisition amount Amount (KRW): 11,116,931,506 Basis for calculation / (expected) principal and interest payment date: September 30, 2026 Source of acquisition funds: Own funds and borrowings

9. Acquisition method: Over-the-counter purchase 10. Reason for acquisition before maturity: Acquisition of bonds before maturity pursuant to separate agreement with the bondholder 11. Future handling plan: Retirement after acquisition 12. Conversion details Conversion ratio (%): 100 Conversion price as of report date (KRW/share): 2,633 Type of shares to be issued upon conversion: Ndfos Co., Ltd. registered common shares Number of shares: 4,177,744 Ratio to total shares outstanding (%): 12.33 Conversion request period: Start date June 25, 2027; End date May 25, 2029

13. Remaining face value (electronically registered) of bonds after acquisition (KRW): 9,000,000,000 14. Whether subject to Fair Trade Commission reporting: Not applicable 15. Other matters material to investment decisions - Item 7 above, the acquisition decision date, is the date of the board resolution for this bond acquisition. - Item 8 above, the acquisition amount, includes the principal (face value of the bond) and interest (calculated on a pro-rata basis up to the acquisition date, applying the early redemption rate). - The ratio to total shares outstanding for the shares to be issued upon conversion above was calculated based on the current total number of voting shares outstanding (29,709,683 shares).

[Matters Concerning the Seller] Seller: JK New Technology Investment Association No. 23; Relationship with the company or largest shareholder: -; Basis for selection: Bondholder; Transaction history and plans within 6 months before/after the acquisition decision: -; Face value of bonds sold (KRW): 11,000,000,000; Note: -

[Where the Seller Includes a Corporation or Organization] (1) Basic information Name: JK New Technology Investment Association No. 23; Number of investors: 3; CEO (representative member): JK Ventures Co., Ltd.; Largest shareholder (largest investor): - Note: Under the bylaws of JK New Technology Investment Association No. 23, information on the association's individual members is confidential and each member bears a confidentiality obligation, so such information is omitted.

(2) Key financial matters for the most recent fiscal year (Unit: KRW million) Fiscal year -; Fiscal year-end -; Total assets -; Revenue -; Total liabilities -; Net income (loss) -; Total equity -; External auditor -; Capital stock -; Audit opinion - - JK New Technology Investment Association No. 23 was established in 2026, so key financial matters for the most recent fiscal year are omitted.