Sunplus Technology Announces Correction to 2026 Q2 Consolidated Financial iXBRL Filing

Release Date: August 14, 2026 Statement Date: August 13, 2026 Statement Time: 17:27:33 Company Code: 2401 Company Name: Sunplus Technology Subject: Correction to the iXBRL filing of the Company's Q2 2026 consolidated financial report Applicable Clause: Clause 51 Factual Date: August 13, 2026

1. Factual Date: 08/13/2026 2. Company Name: Sunplus Technology Co., Ltd. 3. Relationship with Company (Please enter 'Company' or 'Subsidiary'): Company 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: Correction of the Company's Q2 2026 iXBRL public disclosure information 6. Item/Report Name to be Corrected: Correction of iXBRL Q2 2026 Balance Sheet 7. Information Before Correction/Amount/Content/Page: Number of treasury shares of the parent company held by the parent and subsidiaries (unit: shares): 356,000 8. Information After Correction/Amount/Content/Page: Number of treasury shares of the parent company held by the parent and subsidiaries (unit: shares): 3,559,996 9. Response Measures: Re-upload to the Public Information Observation Station 10. Other Matters to be Disclosed: This correction does not affect profit or loss.