Hualien United Announces Bondholders' Right to Exercise Put Option for Third Domestic Unsecured Convertible Bond (Code: 14363) Upon 2-Year Maturity on August 27, 2026

1. Date of Event: June 23, 2026

2. Company Name: Hualien United Development Co., Ltd.

3. Relationship with Company (please enter 'Company' or 'Subsidiary'): Company

4. Cross-shareholding Ratio: Not applicable

5. Reason for Occurrence: In accordance with Article 18 of the issuance and conversion regulations of Hualien United III.

6. Response Measures: Not applicable

7. Other Matters to be Disclosed (if the entity involved is a publicly issued company or above, this material information also qualifies as a matter under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act that significantly affects shareholders' rights or securities prices):

I. Bond Put Exercise Benchmark Date: August 27, 2026 (2-year anniversary).

II. Put Redemption Amount: Calculated at 103.0225% of the bond's face value; i.e., each bond with a face value of NT$100,000 will be redeemed at NT$103,022.

III. Put Exercise Period: From July 18, 2026 to August 27, 2026, inclusive. Applications submitted after this period will not be accepted.

Bondholders may initiate the put exercise procedure through their brokerage firms from the business day prior to the start of the exercise period up to the business day prior to the end date (i.e., from July 17, 2026 to August 26, 2026).

IV. Put Exercise Procedures and Required Documents: As the bond is issued in book-entry form (dematerialized), bondholders must apply through their brokerage firms. The put exercise application becomes effective upon receipt and cannot be withdrawn. Required documents include:

1. Application Form for Book-Entry Transfer/Redemption/Put of Convertible Bonds (form provided by the securities firm), stamped with the original reserved seal of the securities depository account.

2. Securities savings passbook.

3. Seal of the depository account.

V. Put Redemption Payment Date: The Company expects to disburse the redemption amount via bank transfer on September 3, 2026, using the bank account information of the transaction securities firms provided by the Taiwan Depository & Clearing Corporation.