Yuecheng Announces Board Approval to Lift Non-Compete Restriction for Director

1. Date of board resolution: 2026/05/08 2. Name and title of manager permitted to engage in competitive activities: Director: Representative of Hongyu Investment Co., Ltd., Chen Chih-cheng 3. Items permitted to engage in competitive activities: Director of Maozhang Optoelectronics Co., Ltd. 4. Period permitted to engage in competitive activities: During the term of office as a director of the Company 5. Resolution details (Please explain the voting results in accordance with Article 32 of the Company Act): Except for Director Chen Chih-cheng, who has a conflict of interest in this case and has recused himself, the remaining attending directors unanimously approved the proposal. 6. If the permitted competitive activity involves a business in mainland China, the name and title of the manager (if not a business in mainland China, please enter "Not Applicable" below): Not Applicable 7. Name and position of the company in mainland China served: Not Applicable 8. Address of the company in mainland China served: Not Applicable 9. Business scope of the company in mainland China served: Not Applicable 10. Degree of impact on the company's financial and business operations: Not Applicable 11. If the manager has invested in a business in mainland China, the investment amount and shareholding ratio: Not Applicable 12. Other matters that need to be specified: This proposal was approved by the Board of Directors and will be submitted to the shareholders' meeting for discussion and resolution.