ANSTEK — Proxy Solicitation & Information Statement 2026

Apr 22, 2026

Notice for 2026 Regular Shareholders' Meeting of Macnica Anstek Inc.

1. The 2026 Annual General Meeting of the Company will be convened at 9:00 a.m., May 27, 2026 (Wednesday) at 21F, No. 75, Section 1, Xintai 5th Road, Xizhi District, New Taipei City (Macnica Anstek).

Registration for shareholders starts at 8:30 a.m. at the same venue as the annual general meeting. Main contents of the meeting: (I) Report: 1. The Company’s 2025 Business Report. 2. Audit Committee’s Review Report on the 2025 final accounting reports. 3. Report on the distribution of profit-sharing remuneration for employees and profit-sharing remuneration for directors for 2025. 4. Report on the distribution of cash dividends for 2025. 5. Amendment to the Company’s “Corporate Governance Best Practice Principles”. (II) Adoption: 1. The Company’s 2025 financial statements and business report. 2. The Company's earnings distribution proposal for 2025. (III) Extraordinary motions.

1. The proposed dividend distribution: Total cash dividends of NTD 91,962,118, representing NTD 1.38 per share.

2. The period from March 29, 2026 to May 27, 2026 is scheduled as the book closure date in pursuant to Article 165 of the Company Act.

3. Please find your attendance sign-in card and proxy enclosed. If you decide to attend the meeting in person, please sign or stamp the “Attendance Sign-in Card” and bring it with you to the meeting place to register (No need to mail back if you attend in person). If you entrust an agent to attend the meeting, please sign or stamp the proxy and fill in the name, ID number, address and signature of the agent. The proxy should be sent (mailed) to the Company’s stock agency, Fubon Securities Co., Ltd. Stock Agency Department (11F., No. 17, Xuchang St., Zhongzheng Dist., Taipei City) at least five (5) days before the meeting to complete the relevant procedures for proxy attendance.

4. If there is a public solicitation of proxies for this shareholders’ meeting, the Company will have it announced on the website of the Securities and Futures Institute before April 24, 2026 in accordance with regulations. The investors who wish to inquire can directly log into the website at https://free.sfi.org.tw of the Securities and Futures Institute and then enter the query criteria on the “Proxy Announcement Information Free Inquiry” page. (Stock Code: 3528)

5. Pursuant to Article 26-2 of the Securities and Exchange Act: “A company that has issued stock under this Act, when giving a shareholder’s meeting notice to shareholders who own less than 1,000 shares of registered stock, may do so in the form of a public announcement, at least 30 days prior to the meeting.”

6. Shareholders may exercise their voting rights electronically at this shareholders’ meeting. The exercise period is from April 25, 2026 to May 24, 2026. Shareholders must log in to the “Shareholder e-Service” of the Taiwan Depository and Clearing Corporation (website: https://stockservices.tdcc.com.tw) with their CA certificate (any of, citizen certificate, securities firm online order certificate, online banking certificate, corporate certificate, securities and futures certificate, and government certificate) and vote according to the relevant instructions. The voting rights exercised electronically in accordance with the provisions of the Company Act shall be deemed as the voters present in person at the shareholders’ meeting. In a shareholder exercises his or her voting rights in electrically and issues a proxy form to authorize an agent to attend the shareholders’ meeting, exercise of the voting rights by the authorized agent shall prevail.

7. If there are any matters that need to be explained in accordance with Article 172 of the Company Act in the agenda of this shareholders’ meeting, please go to the Market Observation Post System (website: https://mops.twse.com.tw/mops/#/web/home)/Single Company/Electronic Document Download/Annual Report and Shareholders’ Meeting Related Information/Annual Report and Shareholders’ Meeting Related Information (including Depository Receipt Information) and enter “Company Code and Year” to query the shareholders’ meeting related information.

Sincerely,

To all shareholders

The Board of Directors, Macnica Anstek Inc.