TAINAN CAYMAN — Proxy Solicitation & Information Statement 2026

May 21, 2026

Stock code : 5906

Tainan Enterprise (Cayman) Co., Ltd.
Meeting Notice for 2026 Annual Shareholders’ Meeting
(Summary Translation)

Meeting Type: Physical Shareholders’ Meeting
Time: 9:30 a.m. Wednesday, June 10, 2026
Location: 1F, No. 297, Sec. 2, Dongmen Rd., East Dist., Tainan City

(The registration time of shareholders is accepted 30 minutes before the start of the Meeting)

I. The agenda for the Meeting is as follows:

1. Report Items
   (1) 2025 business report of the Company.
   (2) Audit Committee’s report on the audit of the 2023 financial statements.
   (3) 2025 report on the distribution of the remuneration to employees and directors.
   (4) Report on Amendments to Certain Provisions of the Company's "Code of Practice for Sustainable Development"

2. Ratification Items
   (1) Ratification of the 2025 business report and financial statements.
   (2) Ratification of the proposal for the distribution of the earnings in 2025.

3. Discussion Items
   (1) The proposal of the Company’s cash injection in earnings transferred to capital by issuing new shares in 2025.
   (2) Partial amendment to the “Rules of Procedure for Shareholders Meeting” of the Company.

4. Extemporary Motions

II. According to Article 172 of the Company Law, it should be stated that its main content should be placed on the public information observation station, and the query website is
[https://mops.twse.com.tw].

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III. Please find enclosed the "Notice of Attendance" and "Proxy Statement." If you intend to personally attend the meeting, please sign or place your seal in the "Registration Card" column. Shareholders may sign or place their seal in the "Proxy Statement" column to appoint a proxy to attend the meeting on his or her behalf and execute power of attorney in writing. Please fill in the "Proxy Statement" and deliver to the Stock Affairs Agency Department, Taishin Securities Co., Ltd. Corporation. Transfer Agent, no later than, 5 days prior to the meeting date.

IV. The company will compile a summary statement of the relevant information provided by shareholders through solicitation of the proxy and disclose the content in the website of Securities & Futures Institute (SFI). Shareholders can navigate to SFI's web page (https://free.sfi.org.tw) to view relevant information.

V. Shareholders may exercise his/her/its voting rights by way of electronic transmission during the period from May 11 – June 7, 2026. Please log in the "Stockvote" (https://stockservices.tdcc.com.tw) of Taiwan Depository & Clearing Corporation (TDCC) and vote in.

VI. The Stock Affairs Agency Department of Taishin Securities Co., Ltd., is the proxy tallying and verification institution for this Annual meeting.

VII. It is highly appreciated that you handle the matters accordingly.

To Shareholder

Sincerely

Board of Directors

Tainan Enterprise (Cayman) Co., Ltd.