TA CHEN STAINLESS PIPE CO., LTD. — Proxy Solicitation & Information Statement 2026

May 11, 2026

Meeting Notice for Annual Shareholders' Meeting
(Summary Translation)

The 2026 Annual Shareholders' Meeting (the "Meeting") of Ta Chen Stainless Pipe Co., Ltd. (the "Company") will be convened at 9:00 a.m., Tuesday, June 16, 2026 at The Labor Recreation Center of Tainan (located at No. 261, Nanmen Road, Tainan, Taiwan)

1. The agenda for the Meeting is as follows:

I. Report Items
(1) 2025 company's business report and financial statements.
(2) Audit Committee's Review Report on the 2025 Financial Statements.
(3) Report on 2025 employees' and directors' remuneration.
(4) Report on 2025 compensation of directors.
(5) Report of implementation of indirect investments in the PRC.
(6) Report of Endorsement guarantee and Financing provided to Others.

II. Matters for Ratification:
(1) Adoption of the 2025 Business Report and Financial Statements.
(2) Adoption of the distribution of earnings for 2025.

III. Matters for Discussion:
(1) Amendment to the "Articles of Incorporation".
(2) Amendment to the "Procedures for Acquisition or Disposal of Assets".

IV. Directors Election
To elect twelve Directors (including four independent directors) of the company.

V. Other Proposal(s)
Approval to release the newly elected directors from non-competition restrictions.

VI. Extraordinary and Motions

1. The proposal for distribution of retained earnings is proposed to distribute NT$1.5 per common share. Upon approval of the aforesaid earnings distribution by

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adoption of the shareholders' meeting, the Board of Directors will be authorized to set the record date for dividend distribution.

3. Directors Election:

There will be twelve Directors (including four independent directors) elected at the Meeting.

Related information is as follows:

I. Candidates of Directors:

1. Hsieh, Li-Yun (Representative of Wei-Yi Investment Co., Ltd.)
2. Shieh, Rung-Kun (Representative of Ta Ying Cheng Investment Co., Ltd.)
3. Tsai, Yong-Yu
4. Tsai, Chao-Chin
5. Ou, I-Lan (Representative of Li Zhi Investment Co., Ltd.)
6. Hsieh, Erh-Yi
7. Tu, Shi-Hsien
8. Lin, Mei-Feng (Representative of Linfangjin Charitable Foundation.)

II. Candidates of Independent Directors:

1. Lan, Shuan-Ming
2. Liang, Chi-Yen
3. Lee, Pei-Ling
4. Fang, Yen-Ting

Education and experience of the candidates: Please visit Market Observation Post System (website: https://mops.twse.com.tw/mops/#/web/t146sb10).

1. Comply with the Article 209 of Company Act, it is proposed to release the non-competition restrictions on directors and independent directors.

2. In accordance with Article 165 of the Company Act, registration for stock transfer will be temporarily suspended from April 18, 2026 to June 16, 2026.

3. Shareholders intending to attend in person are required to sign or seal on the Notice of Attendance and present it at Annual General Shareholders Meeting. If a proxy is entrusted to attend the meeting, the shareholder should fill out and then mail the proxy form along with the meeting notice to the Company's Stock Affairs Division at least five days prior to the Meeting. When attending the shareholders' meeting, please bring original photo identification documents for verification; if juristic persons appoint a representative to attend, a letter of appointment with

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the juristic persons' company's seal affixed must also be presented.

1. In case of a public solicitation of proxies for this Annual General Shareholders Meeting, the Company will provide relevant information on the website of Securities & Futures Institute (https://free.sfi.org.tw) on May 15, 2026. Shareholders require more details of solicitation, please follow the instructions there.

2. Shareholders may exercise their voting rights electronically from May 17, 2026 to June 13, 2026 through the internet voting service at https://stockservices.tdcc.com.tw and follow the instructions there.

3. In the event of a proposal subject to a vote in this Annual General Shareholders Meeting, President Securities Corp. (Registrar Department) is the proxy tallying and verification institution for this Meeting.

4. In relation to the essential contents will be posted on the Market Observation Post System (website: https://mopsplus.twse.com.tw/mops/#/web/t57sb01_q5) in accordance with Article 172 of Company Act.

5. Please be advised and act accordingly.

Board of Directors
Ta Chen Stainless Pipe Co., Ltd.