5215 Ko-Chia KY

Release Date: July 22, 2026 Statement Date: July 21, 2026 Statement Time: 16:56:21 Company Code: 5215 Company Name: Ko-Chia KY Subject: Announcement regarding subsidiaries Suzhou Jiaji / Kede / Jiacai / Aipulai / Baihong / Jiahuang / Jiajun cumulatively disposing of the same securities exceeding 20% of paid-in capital within one year Applicable Clause: Clause 20 Factual Date: July 21, 2026 Details: 1. Securities Name: Aipulai: 83,980 units, average price: 1.430%, Baihong: 102,660 units, average price: 1.430%, Jiacai: 410,410 units, average price: 1.430%, Jiahuang: 210,040 units, average price: 1.440%, Jiaji: 120,100 units, average price: 1.435%, Kede: 207,340 units, average price: 1.430%, Jiajun: 362,420 units, average price: 1.430%, Total Amount: 149,701 thousand RMB (approximately TWD 700,482 thousand) 2. Transaction Date: July 21, 2026 ~ July 21, 2026 3. Board Approval Date: Not applicable 4. Other Approval Dates: Approval Level: Approved by Chairman July 21, 2026 5. Disposal Quantity, Unit Price, and Total Transaction Amount: Disposal Gain: RMB 6 thousand 6. Disposal Gain (or Loss) (not applicable for acquisitions): Suzhou Aipulai: None Suzhou Baihong: None Suzhou Jiacai Electronics: None Suzhou Jiahuang Electronics: None Suzhou Jiaji Electronics: None Suzhou Kede: None Chongqing Jiajun: None Pledge Status: None 7. Relationship with the Target Company: Unrelated party 8. Cumulative Holdings to Date (including this transaction) - Quantity, Amount, Ownership Ratio, and Restricted Rights (e.g., Pledge Status): Percentage of Total Assets: 14.07% Percentage of Shareholders' Equity: 19.60% Working Capital: TWD 2,612,388 thousand 9. Cumulative Securities Investment (including this transaction) under Article 3 of the 'Regulations Governing the Acquisition or Disposition of Assets by Publicly Issued Companies' as a percentage of Total Assets and Equity Attributable to Owners of the Parent in the Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements: Investment and Financial Management 10. Specific Purpose of Acquisition or Disposal: Investment and Financial Management 11. Directors Who Expressed Objections to this Transaction: None 12. Whether this Transaction is a Related-Party Transaction: No 13. Counterparty and Relationship with the Company: Not applicable 14. Date of Supervisor's Acknowledgment or Audit Committee's Approval: Not applicable 15. Previous Date of Material Information Disclosure on the Same Event: Not applicable 16. Other Explanatory Matters: None