Senda Announces Information on Its Consolidated Financial Report for May 2026

1. Date of Event: June 17, 2026 2. Company Name: Senda Electronics Co., Ltd. 3. Relationship to Company (Please enter '本公司' or 'Subsidiary'):本公司 (本公司) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Disclosure: In accordance with Circular No. 1061805510 issued by the Taiwan Stock Exchange Corporation, the company is required to disclose by the end of each month information regarding other receivables balances as of the end of the previous month, their proportion to total assets and equity, amounts not yet overdue and already overdue, and amounts recovered during the previous month, based on its consolidated financial statements.

Item As of May 31, 2026 (Unit: NT$ Thousands) Other Receivables Balance 203,577 Other Receivables Balance as % of Total Assets 6.28% Other Receivables Balance as % of Equity 15.66% Other Receivables Not Yet Overdue 36,454 Other Receivables Already Overdue 167,123 Amount Recovered from May 1 to May 31, 2026 3,321

6. Mitigation Measures: Please refer to the details under 'Other Matters to be Disclosed'. 7. Other Matters to be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this significant information also qualifies as a matter under Article 7, Paragraph 9 of the Enforcement Rules of the Securities and Exchange Act that may have a material impact on shareholders' rights or securities prices): a. As of May 31, 2026, the amount of bad debt loss already provided for the aforementioned other receivables on the books is NT$167,123 thousand. b. Credit Protection Measures: The company has engaged professional legal counsel to file an arbitration application with the South China International Economic and Trade Arbitration Commission. The arbitration outcome will determine whether the company can recover the other receivables amounting to US$4,458,769 from China Putian Information Industry Group and Putian International Trading. The company will make every effort to safeguard the interests of itself and its shareholders. c. The company's available funds are sufficient to meet its operational needs, and there is no material impact on its financial condition or business operations. d. The company has received notification from the Shenzhen International Arbitration Court that the arbitration decision deadline has been extended to June 30, 2026.