Taishin Financial Holding Announces Regulatory Penalty on Subsidiary Taishin Securities

Release Date: July 22, 2026 Statement Date: July 21, 2026 Statement Time: 21:36:55 Company Code: 2887 Company Name: Taishin Financial Holding Co., Ltd.

Subject: Announcement Regarding Regulatory Penalty Imposed on Subsidiary Taishin Securities

Applicable Clause: Clause 26 Factual Event Date: July 21, 2026

Details:

1. Factual Event Date: July 21, 2026

2. Entity Involved: Taishin Securities Co., Ltd. (subsidiary)

3. Reason for Incident: Following the merger between Taishin Securities and Yuan Ta Securities on April 6, 2026, an abnormality occurred in the electronic trading system. An investigation by the Taiwan Stock Exchange revealed that the company failed to properly implement its internal control system. As a result, the Financial Supervisory Commission (FSC) imposed penalties under Article 66(1) and (5), Article 178-1(1)(4) of the Securities and Exchange Act, and Article 2(2) of the Rules Governing Securities Firms.

4. Response Process: Taishin Securities has already implemented relevant corrective measures and will continue to comply with regulatory directives for further improvements.

5. Penalty Imposed: A warning and a fine of NT$3.6 million have been issued.

6. Was a monetary penalty imposed?: Yes

7. Amount of Fine (NT$): 3,600,000

8. Estimated Loss or Impact: NT$3.6 million in financial loss, along with operational restrictions for the next three months, including: - Prohibition on applying for new business lines or services - Prohibition on establishing new branches - Prohibition on applying for investments in related businesses - Prohibition on cash capital increases or issuing corporate bonds - Ineligibility to serve as an ETF liquidity provider - Prohibition on issuing index investment securities (ETNs)

9. Potential Insurance Reimbursement Amount (NT$): None

10. Improvement Status and Future Measures: Taishin Securities has already taken corrective actions and will continue to review and improve operations as directed by the regulatory authority.

11. Prior Major Information Disclosure on the Same Incident: No

12. Other Matters to be Disclosed: None