Chailease Holding Co., Ltd. (CHAILEASE-KY): Zhongyu Electric Power Co., Ltd., a Subsidiary of Chung Hsin Financial Co., Ltd., Provides Endorsement Guarantee for its Parent Company, Chailease Finance Co., Ltd., Announced in Accordance with Regulations Governing the Loaning of Funds and Endorsement Guarantees by Public Companies.

1. Date of Occurrence: 2026/04/07 2. Endorsed and Guaranteed Party: (1) Company Name: Chailease Finance Co., Ltd. (2) Relationship with the Company Providing Endorsement Guarantee: Parent Company (3) Endorsement Guarantee Limit (NT$ Thousand): 69,033,030 (4) Original Endorsement Guarantee Balance (NT$ Thousand): 10,000,000 (5) Amount of New Endorsement Guarantee (NT$ Thousand): 2,000,000 (6) Endorsement Guarantee Balance as of the Date of Occurrence (NT$ Thousand): 12,000,000 (7) Actual Amount Utilized by the Endorsed and Guaranteed Company (NT$ Thousand): 2,040,000 (8) Reason for New Endorsement Guarantee: To assist the parent company in obtaining short-term operating funds 3. Collateral Provided by the Endorsed and Guaranteed Company: (1) Content: None (2) Value (NT$ Thousand): 0 4. Most Recent Financial Report of the Endorsed and Guaranteed Company: (1) Capital (NT$ Thousand): 53,961,807 (2) Accumulated Profit/Loss (NT$ Thousand): 26,487,753 5. Conditions for Releasing Endorsement Guarantee Liability: (1) Conditions: Full repayment of credit agreement (2) Date: Upon fulfillment of all contractual obligations or termination of the agreement 6. Total Endorsement Guarantee Limit (NT$ Thousand): 912,206,240 7. Endorsement Guarantee Balance as of the Date of Occurrence (NT$ Thousand): 316,349,716 8. As of the Date of Occurrence, the Ratio of Endorsement Guarantee Balance Provided by A to the Net Value in the Most Recent Financial Report of the Public Company: 173.40% 9. As of the Date of Occurrence, the Ratio of the Total of Endorsement Guarantee, Long-term Investments, and Loaning of Funds Balance to the Net Value in the Most Recent Financial Report of the Public Company: 358.52% 10. Other Matters to be Explained: The new endorsement guarantee amount of Zhongyu Electric Power Co., Ltd. on 4/7 reached 5% of the net value of its parent company, Chung Hsin Financial Co., Ltd., and is announced in accordance with Article 25, Paragraph 1, Subparagraph 4 of the "Regulations Governing the Loaning of Funds and Endorsement Guarantees by Public Companies."