Likeng Announcement: The Company Provides Endorsement and Guarantee According to Articles 25, Paragraph 1, Subparagraphs 3 and 4 of the Regulations Governing the Lending of Funds and Endorsements/Guarantees by Public Companies

1. Date of occurrence: 2026/05/13 2. Endorsed and guaranteed entity: (1) Company name: Likeng Vietnam Co., Ltd. (2) Relationship with the company providing endorsement/guarantee: A 100% directly invested subsidiary of the company. (3) Endorsement/guarantee limit (NT$ thousands): 366,205 (4) Original endorsement/guarantee balance (NT$ thousands): 0 (5) Amount of new endorsement/guarantee added this time (NT$ thousands): 158,300 (6) Endorsement/guarantee balance as of the date of occurrence (NT$ thousands): 158,300 (7) Actual amount drawn by the endorsed/guaranteed company (NT$ thousands): 47,490 (8) Reason for the new endorsement/guarantee: To provide guarantees for the subsidiary's bank financing. 3. Collateral provided by the endorsed/guaranteed company: (1) Contents: None (2) Value (NT$ thousands): 0 4. Most recent financial statements of the endorsed/guaranteed company: (1) Capital (NT$ thousands): 678,514 (2) Accumulated profit/loss (NT$ thousands): -115,521 5. Conditions for releasing endorsement/guarantee liability: (1) Conditions: Full settlement of all debts upon 1-year maturity. (2) Date: 1 year 6. Total endorsement/guarantee limit (NT$ thousands): 787,608 7. Endorsement/guarantee balance as of the date of occurrence (NT$ thousands): 221,620 8. Ratio of the endorsement/guarantee balance provided by Company A (Likeng) to the net worth of the public company's most recent financial statements as of the date of occurrence: 11.37% 9. Ratio of the total balance of endorsement/guarantees, long-term investments, and loans to the net worth of the public company's most recent financial statements as of the date of occurrence: 46.68% 10. Other matters that should be specified: None Keywords: Material Information