SUN YAD — Proxy Solicitation & Information Statement 2026

May 22, 2026

Sun Yad Construction Co., Ltd.

Notice of the 2026 Annual Shareholders’ Meeting (Summary)

Time: June 24, 2026 (Wednesday) at 1:00 pm. (Shareholder registration will begin at 12:30 p.m. and will be conducted at the shareholder meeting venue.)

Location: 4th Floor, No. 250, Section 2, Yonghua Road, Anping Dist., Tainan City, Taiwan (The Company’s Yonghua Conference Room).

1. The agenda of the Meeting is as follows:

(1). Report Items
A. 2025 Business Report of the Company.
B. Audit Committee’s Review Report on the 2025 Financial Statements.
C. Report on the Issuance of Convertible Bonds.
D. Status report on the private placement of common shares in 2025.

(2). Ratification Items
A. Adoption of 2025 Business Report and Financial Statements.
B. Adoption of the Proposal for 2025 Deficit Compensation.

(3). Discussion Items :
A. Amendment to the Company’s Articles of Incorporation.
B. Proposed Private Placement of Common Shares.

(4). Extraordinary Motions.

1. Please refer to the attachment for details regarding the proposal for the private placement of common shares,

2. Enclosed please find the Attendance Card and Proxy Form. If you intend to attend in person, please sign or stamp the “Attendance Card” and bring it to the venue on the day of the meeting. If you appoint a proxy to attend on your behalf, please sign or stamp the proxy form, fill in the name and address of the proxy, and deliver (or mail) it to the Company’s stock affairs agent, Shareholder Services Department of Yuanta Securities Co., Ltd. (B1, No. 67, Sec. 2, Dunhua South Road, Daan District, Taipei City, 106045, Taiwan), at least five days prior to the meeting to facilitate the issuance of the attendance card to the proxy.

3. The institution responsible for the verification and tabulation of proxy forms for this shareholders’ meeting is the Shareholder Services Department of

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Yuanta Securities Co., Ltd..

1. If any shareholder solicits Proxy Forms, the Company will compile and disclose a summary statement of solicitor information on the Securities and Futures Institute website on May 22, 2026. If investors want to check, they can directly enter the website address: https://free.sti.org.tw to access the "Free Proxy Form Inquiry System" and enter the query conditions.

2. For the main content of this shareholders' meeting, if there are matters stipulated in Article 172 of the Company Act, in addition to the items listed in the notice, please refer to Market Observation Post System (website: https://mops.twse.com.tw) by selecting "Single Company/ Electronic Books / Annual Reports and Shareholders' Meeting Related Information (including Depositary Receipt Information) and entering the relevant search criteria (company stock code or abbreviation and year) to access “Reference Materials for Shareholders’ Meeting Agenda Items (or Meeting Handbook and Supplemental Information).".

3. Shareholders may exercise their voting rights electronically for this shareholders' meeting. The exercise period is from May 25, 2026 to June 21, 2026. Please log in directly to the electronic voting platform provided by Taiwan Depository & Clearing Corporation and following the relevant instructions. [Website: https://stockservices.tdcc.com.tw]

Board of Directors of
Sun Yad Construction Co., Ltd.