Subscription results of rights offering or equity-linked bonds (voluntary)

What happened

1. Type of security Korea Advanced Materials Co., Ltd. registered common shares

2. Issuance method General public offering rights issue

3. Subscribers General public offering subscribers

4. Subscription date 2026-08-25

5. Subscription results Number of shares to be issued (shares): 1,578,116 Number of shares subscribed (shares): 2,176,400 Cumulative number of shares subscribed (shares): 2,176,400 Subscription rate (%): 137.91

6. Method of handling odd-lot and forfeited shares Any remaining shares after the general public offering will be treated as unissued.

7. Other matters for investment reference a. The "4. Subscription date" above is the final day of the general public offering rights offering subscription period. [Subscription period: August 24-25, 2026 (2 days)] b. The "number of shares subscribed" in "5. Subscription results" above corresponds to subscriptions against the planned general public offering allotment (1,578,116 shares). c. The "cumulative number of shares subscribed" and "subscription rate (%)" in "5. Subscription results" above are simple totals of the general public offering subscriptions. d. Future key schedule 1) Allotment and refund announcement date: August 27, 2026 2) Share payment (refund) date: August 27, 2026 3) Expected listing date of new rights-offering shares: September 11, 2026

Related disclosures: 2026-08-20 Rights offering decision (general public offering - small-scale offering) 2026-08-20 Small-scale public offering disclosure document (equity securities) 2026-08-20 Final issue price of rights offering confirmed