【Six Flags】Announcement by Subsidiary Six Flags Cilan Mingchi Co., Ltd. of Signing an Engineering Contract with a Related Party (Correction of Contract Start and End Dates).

1. Type of contract: Engineering contract 2. Date of occurrence of the event: 2026/5/13~2026/5/13 3. Date of board of directors' approval: May 13, 2026 4. Other approval dates: Not applicable 5. Counterparty to the contract and its relationship with the company: (1) Yi Xuan Construction Co., Ltd. (2) Six Flags Cilan Mingchi Co., Ltd. is a 100% owned subsidiary of Six Flags Development Co., Ltd. Yi Xuan Construction Co., Ltd. is a 100% owned grandchild company of Six Flags Development Co., Ltd. 6. Main content of the contract (including total contract amount, estimated amount of investment, and contract start and end dates), restrictive clauses, and other important agreed matters: (1) Total contract amount: An engineering contract was signed with Yi Xuan Construction Co., Ltd. for a total price of NT$320,005,917 (including tax). (2) Estimated amount of investment: NT$320,005,917 (including tax). (3) Contract start and end dates: 2026/5/13~2028/4/29 (4) Restrictive clauses: None. (5) Other important agreed matters: None. 7. Name of professional appraiser's firm or company and its appraisal results: Not applicable 8. Name of real estate appraiser: Not applicable 9. License number of real estate appraiser: Not applicable 10. Specific purpose of acquisition: To carry out the expansion and renovation of existing assets for the Cilan and Mingchi recreational facilities ROT (Reconstruction-Operation-Transfer) project. 11. Opinions of directors who expressed dissent to this transaction: None 12. Is this transaction a related party transaction: Yes 13. Date of approval by supervisor or audit committee: May 13, 2026 14. Is the appraisal report a limited price, specific price, or special price: No or not applicable 15. Has the appraisal report not yet been obtained: No or not applicable 16. Reason for not yet obtaining the appraisal report: Not applicable 17. If there is a material discrepancy in the appraisal results, the reason for the discrepancy and auditor's opinion: Not applicable 18. Name of accounting firm: Not applicable 19. Name of accountant: Not applicable 20. License number of accountant: Not applicable 21. Date of previous material information disclosure on the same event: Not applicable 22. Other matters to be stated: None