[Rih Sheng Chemical] Announcement of Important Resolutions at the 2026 Annual General Meeting

1. Date of the Annual General Meeting: 2026/05/27 2. Important Resolution 1, Distribution of Earnings: The 2025 earnings distribution plan was approved, with a cash dividend of NT$0.65 per share. The Chairman is authorized to set the ex-dividend date. 3. Important Resolution 2, Amendments to Articles of Incorporation: None. 4. Important Resolution 3, Business Report and Financial Statements: The 2025 business report and financial statements were approved. 5. Important Resolution 4, Election of Directors and Supervisors: None. 6. Important Resolution 5, Other Matters: The amendment to the 'Procedures for Acquisition or Disposal of Assets' was approved. 7. Other matters to be stated: None.