2474 KCM Technology

Release Date: July 2, 2026 Statement Date: July 1, 2026 Statement Time: 18:12:51 Company Code: 2474 Company Name: KCM Technology Subject: Announcement by subsidiary Yikuang Co., Ltd. regarding cumulative acquisition of common shares in Bondtech Biotechnology Co., Ltd. exceeding NT$300 million within one year. Applicable Clause: Clause 20 Factual Date: July 1, 2026

Details: 1. Security Name: Bondtech Biotechnology Co., Ltd. 2. Transaction Period: July 2, 2025 – July 1, 2026 3. Board Approval Date: Not applicable 4. Other Approval Date: Approval Level: Chairman's Decision July 1, 2026 5. Transaction Quantity, Unit Price, and Total Amount: Quantity: 2,569,000 shares Unit Price: Average of NT$117.87 per share Total Amount: NT$302,811,565 6. Gain (or Loss) on Disposal (Not applicable for acquisition of securities): Not applicable 7. Relationship with Target Company: Equity-method investee within the group 8. Cumulative Holdings (including this transaction) to date: Company: Bondtech Biotechnology Co., Ltd. Cumulative Quantity: 2,606,000 shares Cumulative Value: NT$307,130,781 Ownership Percentage: 3.76% Restrictions on Rights (e.g., pledge status): None 9. Proportion of securities investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' relative to total assets and equity attributable to owners of the parent in the latest financial statements, and operating capital: Percentage of Total Assets: 0.77% Percentage of Equity Attributable to Owners of the Parent: 1.18% Operating Capital: -NT$36,036,990 thousand 10. Purpose of Acquisition: In alignment with group strategic transformation 11. Dissenting Director Opinions: None 12. Related-Party Transaction: No 13. Counterparty and Relationship with Company: None 14. Supervisor Approval or Audit Committee Consent Date: Not applicable 15. Previous Material Information Disclosure Date for Same Event: Not applicable 16. Other Disclosures: None