[Amended] Material event report (bonus issue)

What happened

Material Event Report (Bonus Issue), Form 6.1 Namsung Co., Ltd., Amendment Report July 31, 2026

1. Disclosure document being amended: Material Event Report (Bonus Issue Decision) 2. Original filing date of the disclosure document being amended: July 6, 2026 3. Amendment details Item 8 (Scheduled listing date of new shares): Reason for amendment - schedule change after consultation with relevant authorities; Before amendment: August 10, 2026; After amendment: August 7, 2026

Material Event Report / Exchange Reporting Obligation To: Financial Services Commission / Korea Exchange July 6, 2026 Company name: Namsung Co., Ltd. Representative Director: Yoon Seong-ho Head office address: 130 Digital-ro, Geumcheon-gu, Seoul Phone: 02-2109-1550 Website: http://www.namsung.com Preparer: (Title) Managing Director; (Name) Kim Seong-uk; (Phone) 02-2109-1503

Bonus Issue Decision 1. Type and number of new shares: Common stock 938,912 shares; Other stock - 2. Par value per share (KRW): 5,000 3. Total shares issued before the capital increase: Common stock 3,621,216 shares; Other stock - 4. New share allotment record date: July 22, 2026 5. New shares allotted per share held: Common stock 0.3; Other stock - 6. Dividend accrual start date of new shares: January 1, 2026 7. Scheduled new share certificate delivery date: - 8. Scheduled listing date of new shares: August 7, 2026 9. Board resolution date (decision date): July 6, 2026 - Independent (outside) directors* present: 1; absent: 0 - Attendance of auditor (audit committee member): absent * "Independent director" applies to listed companies; "outside director" to unlisted companies.

10. Other matters for investment reference 1) Bonus issue allotment details (unit: shares) Category: Total shares issued before bonus issue; Bonus issue allotment; Total shares issued after bonus issue Common stock: 3,621,216; 938,912; 4,560,128 Note: Total shares issued includes 491,509 treasury shares.

2) New share allotment method and handling of fractional shares: New shares of the same class will be allotted free of charge to shareholders of record on the record date (July 22, 2026) (excluding treasury shares) at a ratio of 0.3 shares per share held (30%). Fractional shares of less than one share will be paid in cash, converted at the closing price on the first day of listing of the new shares.

3) Amount to be capitalized and source of funds for new shares: Capital surplus (paid-in capital in excess of par) of KRW 4,694,560,000.

4) Other incidental matters concerning the new share issuance are delegated to the representative director, and the above schedule and details may change through consultation with relevant authorities.

Matters concerning other stock: Basis in articles of incorporation -; Details of the stock -; Other -