Supreme Announces Base Date for Cash Capital Increase and Related Matters

1. Board resolution or company decision on capital increase base date: 115/06/08 2. Whether to adopt blanket declaration for new share issuance (if yes, state the intended issuance period; if no): No 3. Effective date of declaration to competent authority: 115/06/05 4. Board resolution (supplementary) issuance date: 115/05/11 5. Total issuance amount and number of shares: Total shares: 40,000,000 shares Total amount: NTD 400,000,000 6. For blanket declaration cases, amount and shares issued this time: Not applicable 7. For blanket declaration cases, remaining amount and shares after this issuance: Not applicable 8. Par value: NTD 10 per share 9. Issuance price: Actual issuance price to be announced separately after pricing. 10. Number of shares for employee subscription: In accordance with Article 267 of the Company Act, 10% of the new shares issued, i.e., 4,000,000 shares, are reserved for subscription by employees. 11. Subscription ratio for original shareholders: 80% of the new shares issued, i.e., 32,000,000 shares, are to be subscribed by original shareholders in proportion to their shareholding as recorded in the shareholder register on the base date, with a subscription ratio of 57.94025389 shares per 1,000 shares held. 12. Public offering method and number of shares: In accordance with Article 28-1 of the Securities and Exchange Act, 10% of the new shares, i.e., 4,000,000 shares, are to be offered to the public through open application. 13. Treatment of fractional shares and unsubscribed shares: Fractional shares less than one share may be combined by shareholders within five days from the cessation of share transfer, by applying to the company's stock affairs agent. Any fractional shares remaining after combination or shares for which original shareholders or employees have waived subscription shall be subscribed by specific persons authorized by the Chairperson at the issuance price. 14. Rights and obligations of the new shares: The rights and obligations of the newly issued shares shall be the same as those of the existing common shares. 15. Use of proceeds: Repayment of bank loans. 16. Base date for subscription: 115/07/12 17. Last date for share transfer: 115/07/07 18. Book closure start date: 115/07/08 19. Book closure end date: 115/07/12 20. Payment period: For original shareholders and employees: 115/07/17 ~ 115/07/23; For specific persons: 115/07/24 ~ 115/07/28 21. Date of signing agreement with collection and special deposit banks: To be announced separately after formal signing. 22. Authorized collection institution: To be announced separately after formal signing. 23. Authorized deposit institution: To be announced separately after formal signing. 24. Other matters: (1) This cash capital increase has been declared effective by the Financial Supervisory Commission under letter No. 1150344831 on June 5, 2026. (2) The content of this issuance plan and other related matters may be revised or adjusted by the Chairperson in the event of changes in laws, modifications by competent authorities, changes in objective circumstances, or adjustments required by subjective/objective conditions. (3) The newly issued shares are intended to be listed on the Taiwan Stock Exchange.