2428 Hsing Chien: Announces Additional Fund Lending to Subsidiary

Release Date: July 2, 2026 Statement Date: July 1, 2026 Statement Time: 18:06:46 Company Code: 2428 Company Name: Hsing Chien Electronics Co., Ltd.

Subject: Announcement Regarding Fund Lending to Dongguan Weiqin Electronics Co., Ltd., a Subsidiary, pursuant to Article 22, Paragraph 1, Clause 3 of the Regulations Governing Lending, Endorsement, and Guarantee by Publicly Issued Companies.

Applicable Clause: Clause 23 Date of Event: July 1, 2026

Details: 1. Date of Event: 07/01/2026

2. Recipient of Fund Lending: (1) Company Name: Weiqin Electronics Co., Ltd. (2) Relationship with Lending Company: Directly held 100% subsidiary (3) Lending Limit (in thousand NT$): 1,181,491 (4) Previous Outstanding Balance (in thousand NT$): 422,010 (5) Amount of New Lending This Time (in thousand NT$): 656,460 (6) Whether authorized by the Board for the Chairman to conduct multiple or revolving disbursements to the same recipient: Yes (7) Total Outstanding Lending Balance as of Event Date (in thousand NT$): 1,078,470 (8) Reason for New Lending: Operational working capital requirements

3. Collateral Provided by Recipient: (1) Description: None (2) Value (in thousand NT$): 0

4. Latest Financial Statement of Recipient: (1) Capital (in thousand NT$): 693,600 (2) Accumulated Profits/Losses (in thousand NT$): 313,327

5. Interest Calculation Method: 2.5% per annum

6. Repayment Terms: (1) Conditions: As per contract (2) Date: As per contract

7. Total Outstanding Lending Balance as of Event Date (in thousand NT$): 1,078,470

8. Ratio of Outstanding Lending Balance to Net Equity of the Publicly Issued Company (based on latest financials): 9.18%

9. Source of Lending Funds: The subsidiary itself

10. Other Disclosures: The new lending amount is RMB 140 million, converted to NT$656,460 thousand based on the Bank of Taiwan’s spot exchange rate average (buy/sell) of 4.689 on July 1, 2026.