Mao Lian-KY Provides New Endorsement Guarantee of Over NT$1.91 Billion for Subsidiary

Disclosure Date: July 4, 2026 Statement Date: July 3, 2026 Statement Time: 16:16:02 Company Code: 3665 Company Name: Mao Lian-KY

Subject: The newly added endorsement guarantee by the company meets Article 25, Paragraph 1, Items 2, 3, and 4 of the Handling Guidelines

Explanation: 1. Fact Date: July 3, 2026

2. Endorsed Guarantor: (1) Company Name: BIZLINK SPEEDY PTE. LTD. (2) Relationship with Guarantee Provider: BIZLINK SPEEDY PTE. LTD. is a direct 100% subsidiary of the company. (3) Endorsement Guarantee Limit (in thousand NT$): 69,959,495 (4) Previous Endorsement Guarantee Balance (in thousand NT$): 0 (5) Amount of Newly Added Endorsement Guarantee (in thousand NT$): 19,152,000 (6) Endorsement Guarantee Balance as of Fact Date (in thousand NT$): 19,152,000 (7) Actual Drawdown Amount by Endorsed Company (in thousand NT$): 0 (8) Reason for New Endorsement Guarantee: For acquisition financing and to secure additional banking credit lines

3. Collateral Provided by Endorsed Company: (1) Description: No collateral provided (2) Value (in thousand NT$): 0

4. Latest Financial Statement of Endorsed Company: (1) Capital (in thousand NT$): 19,015,588 (2) Accumulated Profit/Loss (in thousand NT$): 11,830,751

5. Conditions for Release of Endorsement Guarantee Liability: (1) Condition: As stipulated in the contract (2) Date: Contract expiration date

6. Total Endorsement Guarantee Limit (in thousand NT$): 69,959,495

7. Endorsement Guarantee Balance as of Fact Date (in thousand NT$): 27,828,032

8. Ratio of Endorsement Guarantee Balance to Net Equity of the Publicly Listed Company as per Latest Financial Statements: 59.67%

9. Combined Ratio of Endorsement Guarantee, Long-Term Investment, and Fund Lending Balances to Net Equity of the Publicly Listed Company: 120.80%

10. Other Matters to be Disclosed: None