Senda Electronics Announces Financial Information for June 2026 Consolidated Report

Release Date: July 21, 2026 Statement Date: July 20, 2026 Statement Time: 16:59:44 Company Code: 3027 Company Name: Senda Electronics Co., Ltd. Subject: Announcement of Financial Information for the Self-Consolidated Financial Report for June 2026 Applicable Clause: Item 51 Event Date: July 20, 2026

1. Event Date: July 20, 2026 2. Company Name: Senda Electronics Co., Ltd. 3. Relationship with Company: Self 4. Cross-shareholding Ratio: Not applicable 5. Reason for Disclosure: In accordance with Taiwan Stock Exchange Corporation’s Letter No. 1061805510, the company is required to disclose by the end of each month the details of other receivables as of the previous month-end, including balances, percentages of total assets and capital, overdue and non-overdue amounts, and amounts recovered in the previous month.

Item As of June 30, 2026 (in NT$ thousands) Other Receivables Balance 208,282 Percentage of Other Receivables to Total Assets 6.68% Percentage of Other Receivables to Capital 16.03% Non-overdue Portion of Other Receivables 38,520 Overdue Portion of Other Receivables 169,762 Amount Recovered from June 1 to June 30, 2026 0

6. Countermeasures: Refer to additional disclosures below. 7. Additional Disclosures: a. As of June 30, 2026, the company has already recognized an impairment loss of NT$169,762 thousand for the aforementioned other receivables. b. Credit Protection Measures: The company has engaged legal counsel to file arbitration with the South China International Economic and Trade Arbitration Commission. The outcome will determine whether the company can recover USD 4,458,769 from China Putian Information and Putian International Trade. The company will make every effort to protect its and shareholders’ interests. c. The company’s funds are sufficient to support ongoing operations, and there is no significant impact on financial or business conditions. d. The company has received notice from the Shenzhen International Arbitration Court that the ruling deadline has been extended to September 30, 2026.