[WPG] Announcement of Exercise of Redemption Right for WPG's First Domestic Unsecured Exchangeable Corporate Bond (Short Name: WPG E1, Code: 370201) and Termination of OTC Trading on August 10, 2026

Content: Pursuant to Article 17 of the Issuance and Exchange Regulations of WPG E1.

The issuer shall exercise its bond redemption right from July 10, 2026 (ROC Year 115) to August 8, 2026 (ROC Year 115), with the redemption price set at 100.0000% of the bond's par value.

1. According to Paragraph (1), Article 17 of the Issuance and Exchange Regulations of WPG's First Domestic Unsecured Exchangeable Corporate Bond (hereinafter referred to as "this exchangeable bond"), this bond may be redeemed by the company during the period from the day following the completion of three months after issuance (April 15, 2026, ROC Year 115) to forty days before the maturity date (December 5, 2028, ROC Year 117), provided that the closing price of Win Semiconductors ordinary shares exceeds 130% (inclusive) of the current exchange price for thirty consecutive trading days. Within thirty trading days thereafter, the company may send, by registered mail, a "Bond Redemption Notice" with a thirty-day redemption period to bondholders (based on the bondholder register as of the fifth business day prior to the mailing date; for those who acquire the bond thereafter due to trading or other reasons, notice shall be made by public announcement). The redemption price shall be the par value of the bond, TWD 100,000 per unit, paid in cash for all outstanding bonds, and the company shall request the TPEx to make a public announcement. The company shall disburse the redemption payment in cash at par value within seven business days after the bond redemption reference date.

2. Details regarding the redemption of this exchangeable bond are as follows:

(1) Date of mailing the Bond Redemption Notice by registered mail: July 10, 2026 (ROC Year 115)

(2) Period for notice and acceptance of redemption applications: July 10, 2026 (ROC Year 115) to August 8, 2026 (ROC Year 115)

(3) Bond redemption reference date: August 8, 2026 (ROC Year 115)

(4) Date of termination of OTC trading: August 10, 2026 (ROC Year 115)

(5) Redemption payment disbursement date: August 18, 2026 (ROC Year 115)

3. Redemption procedures:

(1) This exchangeable bond is issued in book-entry form. Bondholders must bring (1) their securities deposit book and (2) the seal of their settlement account to their original securities broker to submit the "Application Form for Book-Entry Transfer/Exchange/Redemption/Sale-back of Convertible/Exchangeable Bonds" (Form No. 127, clearly marked "Redemption") to complete the redemption procedure. After receiving the application, the securities broker will file it with the Taiwan Depository & Clearing Corporation (TDCC). Upon TDCC’s acceptance and forwarding to the company’s share agent, the redemption becomes effective immediately and cannot be revoked.

(2) Bondholders may apply for redemption through their securities broker from the business day prior to the redemption period to the business day prior to its expiration (i.e., from July 9, 2026 to August 7, 2026, ROC Year 115).

(3) If a bondholder does not submit a written response to the company’s share agent by the redemption reference date specified in the "Bond Redemption Notice" (effective upon receipt; postmark date applies for mailed submissions), the company will remit the redemption payment to the bank account registered with the securities broker by August 18, 2026 (ROC Year 115), within seven business days after the redemption reference date. Bank transfer fees will be directly deducted from the redemption amount. In case of bank return due to incorrect or incomplete account information, a check will be mailed to the shareholder’s registered mailing address, and postage will be deducted from the redemption amount.

(4) Bondholders who do not wish to have their bonds redeemed and instead wish to exchange the exchangeable bonds for Win Semiconductors ordinary shares must complete the exchange procedure with their securities broker by August 11, 2026 (ROC Year 115) at the latest.

4. Company’s Share Agent: KGI Securities Co., Ltd., Share Agency Department Address: B2F, No. 97, Section 2, Dunhua South Road, Da’an District, Taipei City Phone: (02) 2702-3999

Warning: Investors are advised that bondholders eligible for exchange who fail to submit a written exchange request by August 11, 2026 (ROC Year 115) will have their entire bond holdings redeemed in cash at par value by the company.