Raydium Semiconductor Corporation — Proxy Solicitation & Information Statement 2026

Apr 24, 2026

Raydium

Raydium Semiconductor Corporation

Notice of the 2026 Annual Shareholders' Meeting

I. The 2026 Annual Shareholders' Meeting of Raydium Semiconductor Corporation will be held at 9:00 a.m. on Wednesday, May 27, 2026, at the Conference Room, No. 1, Gongye E. 2nd Rd., East District, Hsinchu Science Park. The starting time for shareholders to register for this meeting is 8:30 a.m., and the registration location is the same as the meeting location. The meeting will be held in physical form.

II. The agenda of the Meeting is as follows:

(I) Report Items
1. 2025 Business Report
2. 2025 Audit Committee’s Review Report
3. 2025 Distribution of Employee Compensation and Director Remuneration
4. 2025 Earnings Distribution of Cash Dividends

(II) Recognition Items
1. 2025 Business Report and Financial Statements
2. 2025 Earnings Distribution

(III) Discussion Items
1. Amendment to the “Procedures for Engaging in Derivatives Transactions”

(IV) Election Items
1. Election of Eight Directors (including Four Independent Directors)

(V) Other Items
1. Proposed Release of Newly-Elected Directors and Their Representatives from Non-Competition Restrictions

(VI) Extempore Motions

III. The Board of Directors has resolved to distribute cash dividends of NT$14.6 per share for the 2025 earnings distribution.

IV. If there are any matters falling under Article 172 of the Company Act or Article 26-1 of the Securities and Exchange Act in connection with the main content of the Meeting, in addition to those set out in the meeting notice, please refer to the Market Observation Post System (MOPS) at https://mops.twse.com.tw for the relevant details.

V. Pursuant to Article 165 of the Company Act, the Company will suspend share transfer registration from March 29, 2026 to May 27, 2026. Any persons who wish to open accounts (for submission of signature cards) should contact Taishin Securities Co., Ltd. Stock Agency.

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Raydium

VI. In the event that any shareholder solicits proxies, the Company shall prepare the solicitation summary form before April 24, 2026 and disclose it on the website of the Securities and Futures Institute. Interested investors may visit https://free.sfi.org.tw for relevant information. The institution designated by the Company for tallying and verification of proxy forms is Taishin Securities Co., Ltd. Stock Agency.

VII. Directors Election:

There will be an election of eight directors (including four independent directors) at the Meeting. Related information is as follows:

(I) Candidates of Director:
1. HUANG, YU-KUO
2. WEN, CHI-JAIN
3. Konly Venture Corp., represented by KU, HSIU-HUA
4. Konly Venture Corp., represented by WU, YANG-EN

(II) Candidates of Independent Director:
5. CHENG, WEI-SHUN
6. HSIUNG, HUI
7. WU, AN-YEU
8. TSENG, MEI-YU

(III) Shareholders who wish to inquire about the academic background, work experience, and other relevant information of the candidates may refer to the "Announcement Search" section of the Market Observation Post System (MOPS) at https://mops.twse.com.tw.

VIII. In addition to the announcements on MOPS, the Company will mail the official notice of meeting, along with a copy of the Attendance Notification and a Power of Attorney. If you decide to attend in person, please sign or stamp the third copy of the Attendance Notification and bring it to the venue on the day of the meeting (please do not mail it back). If a proxy is appointed to attend the meeting, please sign or stamp the Power of Attorney and fill in the relevant information before sending to Taishin Securities Co., Ltd. Stock Agency, the Company's agent for Stock Affairs, no later than five days before the meeting.

IX. Shareholders may exercise their voting rights electronically through the STOCKSERVICES platform of Taiwan Depository & Clearing Corporation by following the instructions on the site from April 25, 2026 to May 24, 2026. [URL: https://stockservices.tdcc.com.tw]

X. Attendees of the Shareholders' Meeting are required to bring their identification documents for verification.

Board of Directors
Raydium Semiconductor Corporation