Quanta Announces Record Date and Related Matters for Cash Dividend in Second Half of 2026

1. Date of Board, Shareholders' Meeting Resolution or Company Decision: 07/02/115 2. Type of Rights Adjustment (please enter 'Rights Issue', 'Dividend', or 'Rights and Dividend'): Dividend 3. Types and Amounts of Ordinary Share Dividends: (1) Ordinary Shares - Cash Dividend: NT$15.6 per share; total amount: NT$60,256,987,940 (2) Ordinary Shares - Stock Dividend: 0 4. Ex-Rights (Dividend) Trading Date: 07/16/115 5. Last Transfer Date: 07/17/115 6. Start Date of Transfer Suspension: 07/18/115 7. End Date of Transfer Suspension: 07/22/115 8. Ex-Rights (Dividend) Record Date: 07/22/115 9. Final Date for Bond Conversion Application: Not Applicable 10. Start Date of Bond Conversion Suspension: Not Applicable 11. End Date of Bond Conversion Suspension: Not Applicable 12. Ordinary Share Cash Dividend Payment Date: 08/28/115 13. Other Matters to be Disclosed: Pursuant to the board resolution dated February 26, 115, the chairman has been authorized to fully handle matters including the cash dividend record date, transfer suspension period, payment date, the suspension period for conversion of the company's fourth overseas unsecured convertible bonds, and adjustments to the cash dividend payout rate.