Opto-Ray: Company's new endorsement guarantee balance reaches Article 25, Paragraph 1, Subparagraph 3 of the "Operating Procedures for Lending Funds and Endorsement Guarantees," and simultaneously cancels Wuxi Opto-Ray's endorsement guarantee limit for Nanchang Opto-Ray.

1. Date of occurrence of the event: 2026/04/09 2. Endorsed and guaranteed company: (1) Company name: Nanchang Opto-Ray Laser Technology Co., Ltd. (2) Relationship with the endorsing and guaranteeing company: A reinvested company held 94.78% by the Company. (3) Endorsement guarantee limit (NT$ thousands): 600,638 (4) Original endorsement guarantee balance (NT$ thousands): 277,740 (5) Amount of new endorsement guarantee (NT$ thousands): 92,580 (6) Endorsement guarantee balance as of the date of occurrence (NT$ thousands): 370,320 (7) Actual amount utilized by the endorsed and guaranteed company (NT$ thousands): 234,607 (8) Reason for the new endorsement guarantee: Funding for operational needs. 3. Collateral provided by the endorsed and guaranteed company: (1) Content: None (2) Value (NT$ thousands): 0 4. Latest financial statements of the endorsed and guaranteed company: (1) Capital (NT$ thousands): 1,367,944 (2) Accumulated profit/loss (NT$ thousands): -98,164 5. Conditions for release from endorsement guarantee liability: (1) Conditions: Contract expiration date (2) Date: As per contract 6. Total endorsement guarantee limit (NT$ thousands): 1,201,277 7. Endorsement guarantee balance as of the date of occurrence (NT$ thousands): 541,185 8. Ratio of endorsement guarantee balance to the net worth of the public company's latest financial statements as of the date of occurrence: 18.02% 9. Ratio of total endorsement guarantee, long-term investments, and lending funds balance to the net worth of the public company's latest financial statements as of the date of occurrence: 51.43% 10. Other matters to be specified: The Company's board of directors resolved on November 13, 2024, to cancel the RMB 20 million endorsement guarantee limit provided by its subsidiary, Wuxi Opto-Ray Laser Technology Co., Ltd., for Nanchang Opto-Ray, simultaneously with the new endorsement guarantee.