1522 Tway Sci. Announces Ex-Dividend Date for Class A Preferred Shares

Release Date: June 25, 2026 (ROC 115) Statement Date: June 24, 2026 (ROC 115) Statement Time: 14:06:05 Company Code: 1522 Company Name: Tway Sci. Subject: Announcement of the ex-dividend benchmark date for the company's Class A preferred shares Applicable Clause: Clause 14 Factual Date: June 24, 2026 (ROC 115)

Details: 1. Date of Board, Shareholders' Meeting Resolution or Company Decision: 06/24/2026 (ROC 115) 2. Type of Rights Adjustment (please enter 'Rights Adjustment', 'Dividend Adjustment', or 'Rights and Dividend Adjustment'): Dividend Adjustment 3. Type and Amount of Preferred Stock Dividend: Distribution of NT$60,000,000 as cash dividend for Class A preferred shares, NT$2 per share 4. Ex-Dividend Trading Date: 07/16/2026 (ROC 115) 5. Last Transfer Date: 07/19/2026 (ROC 115) 6. Start Date of Transfer Suspension: 07/20/2026 (ROC 115) 7. End Date of Transfer Suspension: 07/24/2026 (ROC 115) 8. Ex-Dividend Benchmark Date: 07/24/2026 (ROC 115) 9. Last Application Date for Preferred Share Conversion: NA 10. Start Date of Preferred Share Conversion Suspension: NA 11. End Date of Preferred Share Conversion Suspension: NA 12. Cash Dividend Payment Date for Preferred Shares: 08/14/2026 (ROC 115) 13. Other Matters to be Disclosed: (1) Cash dividends for Class A preferred shares are scheduled to be distributed starting August 14, 2026, through the company's share agent via bank transfer or registered mail using 'non-negotiable' checks. If the dividend amount is insufficient to cover bank transfer or registered mail fees, checks will be sent by regular mail. (2) Cash dividends for Class A preferred shares will be paid to the nearest dollar (amounts less than one dollar will be truncated, and the total fractional amount will be recorded as the company's other income). Bank transfer fees and postage will be borne by shareholders. Additionally, withholding taxes and supplementary insurance premiums will be directly deducted from shareholders' cash dividend payments.