Treasury share disposal: results report

What happened

Treasury share disposal results report submitted to the Governor of the Financial Supervisory Service, dated August 24, 2026. Company name: Korchip Co., Ltd. Representative director: Son Jin-hyeong Head office address: 359 Manan-ro, Manan-gu, Anyang-si, Gyeonggi-do (Anyang-dong), Korchip Building Phone: 031-361-8000 Website: http://www.korchip.com Preparer: Director Yun Dong-jin, Phone: 031-361-8000

1. Name and address of the issuer A. Name: Korchip Co., Ltd. B. Address: Korchip Building, 359 Manan-ro, Manan-gu, Anyang-si, Gyeonggi-do

2. Details of the disposal report A. Material event report filing date: August 14, 2026 B. Disposal period: 2026.08.18 to 2026.08.31 C. Type and number of shares reported for disposal: Common shares, 12,000 shares

3. Details of the disposal (Unit: KRW, shares) Date | Type | Quantity: order quantity / disposed quantity | Disposal price per share | Total disposal amount | Disposal counterparty | Brokerage securities firm: financial investment business entity's unique number 2026.08.21 | Common shares | - / 12,000 | 19,410 | 232,920,000 | Officers and employees | - / - Total | - | - / 12,000 | 19,410 | 232,920,000 | - | - Note 1: The disposal price per share is based on the closing price on the business day before the disposal date. Note 2: The disposal method is a transfer from the Company's treasury stock account to the relevant officer's or employee's securities account.

4. Whether the disposal report matches the actual disposal Planned shares for disposal (shares): common shares / other shares; Total shares disposed (shares): common shares / other shares; Match: yes/no; Reason for any difference 12,000 / - ; 12,000 / - ; Match | -

5. Holdings of treasury stock etc. after disposal [as of 2026.08.24] (Unit: KRW thousand, shares, %) Type of shares | Holdings under Article 165-3 (A): quantity, ratio, total value | Holdings under trust contracts etc. under Article 165-3 (B): quantity, ratio, contract amount | Total (A+B): quantity, ratio, amount Common shares | 512,900 / 5.85 / 3,827,834 | - / - / - | 512,900 / 5.85 / 3,827,834 Total | 512,900 / 5.85 / 3,827,834 | - / - / - | 512,900 / 5.85 / 3,827,834 Note 1: The above ratio is the ratio of treasury stock to total issued shares (8,770,126 shares). Note 2: The total value is based on the acquisition cost (book value) under the moving average method.