RITEK — Proxy Solicitation & Information Statement 2026

May 14, 2026

RITEK CORPORATION

NOTICE of

2026 GENERAL SHAREHOLDERS' MEETING

(Summary Translation)

• The 2026 General Shareholders' Meeting will be held on Tuesday, June 16, 2026 at 9:00a.m. at No. 12, Kuangfu N. Rd., Hsinchu Industrial Park, Huko Township, Hsinchu County, Taiwan.

• Type of meeting: physical meeting

• The agenda for the Meeting is as follows:

1. Report Items:

(1) 2025 business Report
(2) 2025 Audit Committee's Review Report

2. Acknowledged matters:

(1) Adoption of the 2025 Business Report and Financial Statements
(2) Proposal for the loss covering in 2025

3. Matters for Discussion:

(1) Amendments to operational Procedures for Acquisition or disposal of Assets.

4. Election Matters: Proposes to elect new directors.

5. Other Proposal: Proposal of release the prohibition on Directors and their representatives from participation in competitive business

6. Extraordinary Motions

• If any matters of essential content of the Meeting are stipulated in Article 172 of Company Act, or Article 26-1 of the Securities and Exchange Act except itemized in the Meeting notice, shareholders can obtain the essential contents via visiting the website of MOPS. (https://mops.twse.com.tw)

• In accordance with Article 165 of the Company Law, April 18, 2026 to June 16, 2026., Is the share transfer of prohibition period.

• The Transfer Agency Department of Taishin Securities Co., Ltd. is the proxy tallying and verification institution for the Meeting.

• If a proxy is solicited by the shareholders, the Company is required to compile details on the proxy solicitation parties and disclose such information on the Securities & Futures Institute (SFI) website at (https://free.sfi.org.tw). no later than May 15, 2026. Shareholders can obtain information on the "Free Proxy disclosure & related information system".

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• To elect 7 directors (including 3 independent directors)

The directors candidate List: (i) Yeh, Chwei-Jing (ii) Yang, Wei-Feng (iii) Chiang, Wei-Fong (iv) Chung Kai Investment co., Ltd. Hung, Pei Chen; The independent directors candidate List: (i) Li, Ching-Wen (ii) Chang, Tso-Hsia (iii) Sung, Tze-Chun, for related information on the above candidates' academic experience, please refer to Market Observation Post System (MOPS) (https://mops.twse.com.tw).

• Please find the Notice of attendance and Proxy From enclosed with the notice. If you plan to attend the Meeting in person, please affix your signature or seal to the Sign-in card and submit it on the day of the Meeting. If you wish to appoint a proxy to attend the Meeting, please fill out the name and relevant information of the proxy, affix your signature or seal to the Proxy Form, Sure the Proxy Form shall be delivered to the Company's securities agent, Taishin Securities Co., Ltd., at least five (5) days prior to the Meeting.

• The shareholders Voting right could be exercised through the internet form May 16, 2026 to June 13, 2026. Please login to the TDCC (Taiwan Depository & Clearing Corporation). website of (https://stockservices.tdcc.com.tw/) to exercise voting rights in accordance with the online instruction.

• Please bring identification documents for verification.

Board of Directors
RITEK CORPORATION