TAISUN — Proxy Solicitation & Information Statement 2026

Apr 28, 2026

园

Taisun Enterprise Co., Ltd.

Meeting Notice for 2026 Annual Shareholders' Meeting
(Summary Translation)

I. The Company is scheduled to hold its Annual Meeting of Shareholders of 2026 at 9:00 a.m. on May of 29, 2026 (the time for shareholders' registration starts at 8:30 a.m. at the 11 F., No. 50, Sec. 1, Zhongxiao W. Rd., Zhongzheng Dist., Taipei City, Taiwan (R.O.C.))

Meeting Agenda:

(I) Management Presentation (Company Reports):
1. 2025 Business report.
2. 2025 Audit Committee’s review report.
3. 2025 Distribution of employees’ and Directors’ remuneration.
4. 2025 Earnings distribution of cash dividends from earnings..
5. Report on the completion status of the merger of our subsidiary, Taisun Yuan.

(II) Proposals:
1. Adoption of the 2025 business report and financial statements.
2. Adoption of the 2025 earnings distribution table.

(III) Extraordinary Motions

II. Dividend distribution: Cash dividend of NT$659,998,730, at NT$ 1.32 per share.

III. Please find the Notice of attendance and Proxy Form enclosed with the Meeting Notice. If you plan to attend in person, please affix your signature or personal seal on the "attendance sign-in card" and register at the meeting venue on the date of the meeting. If you plan to appoint a proxy to attend the Meeting, please affix your signature or personal seal on the proxy, fill out the name and address of the proxy, and deliver to the registrar of the Company, Stock Registration Department of Yuanta Securities Co., Ltd (B1F., No. 67, Sec. 2, Dunhua S. Rd., Da'an Dist., Taipei City, Taiwan), five days prior to the annual shareholders' meeting, to facilitate dispatching attendance sign-in card to the engaged proxy.

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IV. The statistics and verification for the proxies of the Company is the Stock Registration Department of Yuanta Securities Co., Ltd.

V. If there is any shareholder who intends to solicit for the Proxy Form, the Solicitor’s Solicitation Information List compiled by the Company will be available on April 28, 2026 on the website of the Securities and Futures Institute (https://free.sfi.org.tw). For inquiries, please visit the website and click “Free Inquiry System for Information Related to the Public Announcement of Proxy Form”; then input the conditions of inquiry accordingly.

VI. Regarding the major content of the annual shareholders’ meeting, please visit the Market Observation Post System (http://mops.twse.com.tw) and click "Basic Information/Electronic Books/Information Related to Annual Report and Stockholders’ Meeting.

VII. In this year's Annual Shareholders' Meeting, shareholders may exercise their voting rights by electronic means. The period for such electronic voting to be carried out is from April 29, 2026 to May 26, 2026. Please login to Taiwan Depository & Clearing Corporation's "Stock Vote" website and proceed in accordance with the instructions provided. (https://www.stockvote.com.tw)

Sincerely,

Board of Directors

Taisun Enterprise Co., Ltd.

This document is prepared in accordance with the Chinese version and is for reference only. In the event of any discrepancy between the English version and the Chinese version, the Chinese version shall prevail.