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

What happened

Nexa Dynamics Co., Ltd. Material event report / Matter subject to KRX reporting obligation To: Financial Services Commission / Korea Exchange August 19, 2026 Company name: Nexa Dynamics Co., Ltd. CEOs: Lee Jeong-ju, Shin Dong-hee Head office location: 25 MTV26-ro 58beon-gil, Siheung-si, Gyeonggi-do (Jeongwang-dong) Phone: 031-433-4711 Website: http://www.nexadynamics.kr Preparer: (Title) CEO (Name) Shin Dong-hee (Phone) 031-433-4711

Decision to redeem own convertible bonds before maturity 1. Type of bond: Series 3, unregistered, interest-bearing, unsecured, privately placed convertible bond 2. Bond issuance date: May 30, 2025 3. Bond issuance method: Private placement 4. Bond maturity date: May 30, 2028 5. Total face (electronically registered) amount of bond (KRW): 15,100,000,000 6. Face (electronically registered) amount of bond subject to acquisition (KRW): 1,000,000,000 7. Date of acquisition decision: August 19, 2026 8. Acquisition amount: amount (KRW) 1,057,156,936; basis of calculation: principal and interest; (expected) payment date: August 19, 2026; source of acquisition funds: own funds 9. Acquisition method: Over-the-counter purchase 10. Reason for acquisition before maturity: Agreement with bondholder 11. Future handling plan: To be decided by the board later (resale or retirement) 12. Conversion-related matters: Conversion ratio (%): 100; Conversion price as of reporting date (KRW/share): 1,775; Type of stock to be issued upon conversion: Nexa Dynamics Co., Ltd. registered common stock; Number of shares: 563,380; Ratio to total shares outstanding (%): 1.86; Conversion request period: start May 30, 2026; end April 30, 2028 13. Remaining face (electronically registered) balance of bond after acquisition (KRW): 10,500,000,000 14. Subject to Fair Trade Commission reporting: Not applicable 15. Other matters for investment reference: - "7. Date of acquisition decision" above is the date of the board resolution for this bond acquisition. - The acquired bonds may be retired or resold; no specific handling plan has been discussed separately to date. A final decision will be made through a future board resolution.

[Matters concerning the seller(s)] Seller name | Relationship with company or largest shareholder | Selection background | Transactions/plans within 6 months before/after acquisition decision | Face amount of bond sold (KRW) | Note Sangsangin Savings Bank Co., Ltd.: -; Bondholder of this bond; -; 500,000,000; - Sangsangin Plus Savings Bank Co., Ltd.: -; Bondholder of this bond; -; 500,000,000; -