[Radiant] Notice to Creditors of Subsidiary Radiant (Guangzhou) Opto-Electronics Co., Ltd.

1. Date of the event: June 5, 2026 2. Company name: Radiant (Guangzhou) Opto-Electronics Co., Ltd. 3. Relationship with the company: Subsidiary 4. Mutual shareholding ratio: N/A 5. Reason for the event: A cash capital reduction plan was passed at the extraordinary general meeting of shareholders of Radiant (Guangzhou) Opto-Electronics Co., Ltd. 6. Measures taken: (1) The cash capital reduction amount is 13.5 million USD, with a reduction ratio of 30%. The capital after the reduction will be 31.5 million USD. (2) The process will follow the regulations of the subsidiary's jurisdiction. Creditors who object to this capital reduction plan should submit a written response attached with evidence of debt by mail within 45 days from the date of the announcement (i.e., by July 20, 2026). (Subject to the postmark date. Submission address: Finance Department, Radiant Opto-Electronics Corp., No. 1, Zhongliu Rd., Qianzhen Dist., Kaohsiung City. Please include contact information and mark the envelope 'Notice to Creditors regarding Capital Reduction of Radiant (Guangzhou) Opto-Electronics Co., Ltd.' and send via registered mail.) Failure to express objection within the specified period will be deemed as consent to this capital reduction plan. 7. Other matters: None.