[TASA] Announcement in accordance with Article 25, Paragraph 1, Subparagraph 3 of the "Regulations Governing the Lending of Funds and Endorsement/Guarantee of Publicly Issued Companies"

1. Date of occurrence of the event: 2026/05/07 2. The party being endorsed/guaranteed: (1) Company name: Guanya Semiconductor Co., Ltd. (2) Relationship with the company providing endorsement/guarantee: A 97.52% held subsidiary of the Company. (3) Endorsement/guarantee limit (in thousands of NTD): 1,265,819 (4) Original endorsement/guarantee outstanding balance (in thousands of NTD): 550,000 (5) Amount of new endorsement/guarantee (in thousands of NTD): 70,000 (6) Endorsement/guarantee outstanding balance as of the date of occurrence (in thousands of NTD): 620,000 (7) Actual amount utilized by the endorsed/guaranteed company (in thousands of NTD): 7,170 (8) Reason for the new endorsement/guarantee: Operational working capital needs of Guanya Semiconductor. 3. Collateral provided by the endorsed/guaranteed company: (1) Content: No collateral. (2) Value (in thousands of NTD): 0 4. Most recent financial statements of the endorsed/guaranteed company: (1) Capital (in thousands of NTD): 1,251,000 (2) Accumulated profit/loss (in thousands of NTD): -438,255 5. Release of endorsement/guarantee liability: (1) Conditions: Expiration of the bank credit agreement. (2) Date: Expiration of the bank credit agreement. 6. Total endorsement/guarantee limit (in thousands of NTD): 3,164,549 7. Endorsement/guarantee outstanding balance as of the date of occurrence (in thousands of NTD): 2,020,000 8. Ratio of total endorsement/guarantee outstanding balance provided by the company to the latest net worth of the publicly issued company as of the date of occurrence: 31.92% 9. Total of endorsement/guarantee, long-term investments, and loans to others as a percentage of the latest net worth of the publicly issued company as of the date of occurrence: 30.85% 10. Other matters that should be specified: None.