Other material management matter

What happened

Daejin Advanced Materials / Other Material Management Matter / (2026.07.14) Other Material Management Matter (Withdrawal of Decision to Issue Series 10 Convertible Bonds)

Other Material Management Matter

1. Reason for filing: Withdrawal of the decision to issue Series 10 unregistered, interest-bearing, unsecured private convertible bonds

2. Details 1. Overview - The Company resolved at its board meeting on December 19, 2025 to issue Series 10 unregistered, interest-bearing, unsecured private convertible bonds, and filed amendments changing the payment date on January 15, February 20, March 20, April 20, May 20, and June 19, 2026. 2. Details of withdrawal 1) Original filing date: December 19, 2025 2) Type of bond: Unregistered, interest-bearing, unsecured private convertible bonds 3) Issue series: Series 10 4) Total face value: KRW 15,000,000,000 (fifteen billion won) 5) Subscriber and allotment amount: Subscriber: Songsang Investment Association; Allotment amount: KRW 15,000,000,000 (fifteen billion won) 6) Expected payment date: July 14, 2026 7) Withdrawal date: July 14, 2026

3. Reason for withdrawal - The decision to issue the convertible bonds is withdrawn because the subscriber, Songsang Investment Association, failed to fulfill its payment obligation.

3. Decision (occurrence) date: 2026-07-14

4. Other material matters relevant to investment decisions 2025-12-19 Material Event Report (Convertible Bond Issuance Decision) 2026-01-15 Material Event Report (Convertible Bond Issuance Decision) 2026-02-20 Material Event Report (Convertible Bond Issuance Decision) 2026-03-20 Material Event Report (Convertible Bond Issuance Decision) 2026-04-20 Material Event Report (Convertible Bond Issuance Decision) 2026-05-20 Material Event Report (Convertible Bond Issuance Decision) 2026-06-19 Material Event Report (Convertible Bond Issuance Decision)