CTCI: Announcement of Company's Endorsement Guarantee to Subsidiary Reaching Publicly Issued Company's Lending and Endorsement Guarantee Handling Standards Article 25, Paragraph 1, Subparagraphs 3 and 4 (Correction to SGD Amount for "8. Date of Release of Endorsement Guarantee Liability").

1. Date of occurrence of the event: 2026/05/12 2. The endorsed and guaranteed party: (1) Company name: CTCI Singapore Pte. Ltd. (2) Relationship with the company providing the endorsement guarantee: Directly invested subsidiary (3) Endorsement guarantee limit (in thousands): 124,567,722 (4) Original endorsement guarantee balance (in thousands): 1,064,583 (5) Amount of new endorsement guarantee (in thousands): 23,384,544 (6) Endorsement guarantee balance as of the date of occurrence of the event (in thousands): 24,449,127 (7) Actual utilized amount by the endorsed and guaranteed company (in thousands): 0 (8) Reason for the new endorsement guarantee: Endorsement guarantee for subsidiary's contracts due to business needs 3. Collateral provided by the endorsed and guaranteed company: (1) Content: None (2) Value (in thousands): 0 4. Most recent financial statements of the endorsed and guaranteed company: (1) Capital (in thousands): 1,971,135 (2) Accumulated profit/loss (in thousands): -1,920,948 5. Release of endorsement guarantee liability: (1) Conditions: Release of endorsement guarantee liability upon maturity (2) Date: Endorsement guarantee liability of SGD948,098 thousand until 2029/10/01 6. Total endorsement guarantee limit (in thousands): 207,612,870 7. Endorsement guarantee balance as of the date of occurrence of the event (in thousands): 85,606,884 8. Ratio of endorsement guarantee balance provided by Company A to the net worth of the publicly issued company's most recent financial statements as of the date of occurrence of the event: 412.34% 9. Ratio of the total balance of endorsement guarantees, long-term investments, and loans to the net worth of the publicly issued company's most recent financial statements as of the date of occurrence of the event: 118.16% 10. Other matters that need to be specified: 1. The exchange rate and the actual utilized amount by the endorsed and guaranteed company used in this announcement are calculated based on the figures at the end of last month. 2. The company's endorsement guarantee, long-term investment, and loan balance to CTCI Singapore Pte. Ltd. is TWD24,532,073 thousand, reaching the announcement standard of Article 1, Paragraph 3. Keywords: Material Information