HUANG HSIANG — Proxy Solicitation & Information Statement 2026

Apr 29, 2026

Huang Hsiang Construction Corporation

Meeting Notice of 2026 Annual Shareholders’ Meeting

Dear Shareholders,

I. The Company is scheduled to convene the 2026 Annual Shareholders' Meeting on Friday, June 1, 2026, at 9:00 a.m. (with shareholder registration starting at 8:30 a.m.) at No. 8, Ln. 470, Sec. 5, Zhongshan N. Rd., Shihlin Dist., Taipei City, Taiwan (2F, Taipei Shihlin Renaissance Hotel).

The meeting agenda comprises the following:

(1) Reported Matters:
1. 2025 Operation Overview & 2026 Operation Plan.
2. 2025 Audit Committee’s Audit Report.
3. 2025 Amounts and Distributed Methods of Employees’ and Directors’ Remuneration.
4. 2025 Implementation of Making Endorsements/Guarantees.
5. 2025 Acquisition and Disposal of Real Estate from Related Parties Proposal.

(2) Acknowledged Matter:
1. 2025 Business Report and Financial Statements.
2. 2025 Earnings distribution.

(3) Extemporary Motions.

II. Dividend Distribution Details: Cash dividends totaling NT$1,063,257,462, equating to NT$2.8 per share.

III. Each shareholder is required to provide one attendance sign-in card and one proxy form. If you plan to attend the meeting in person, please sign or affix your seal on the "Attendance Sign-in Card" and bring it with you on the day of the meeting. For shareholders appointing proxies, please sign or affix your seal on the proxy form and include the proxy's name and address. Send the completed proxy form to our share registrar, Yuanta Securities Co., Ltd. Shareholder Services Department (B1., No. 67, Sec. 2, Dunhua S. Rd., Da'an Dist., Taipei City 106045), at least five days prior to the shareholders' meeting to facilitate the issuance of the attendance sign-in card to the appointed proxy.

IV. The verifying institution for proxy forms of the Company is Yuanta Securities Co., Ltd. Shareholder Services Department.

V. For shareholders seeking proxy forms, our company will compile and disclose the summary of solicitors' data on April 30, 2026, on the Securities and Futures Institute website. Investors interested in querying this information can visit the website directly at: https://free.sfi.org.tw and utilize the "Proxy Form Free Inquiry System" by inputting their query criteria.

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VI. For the primary agenda of this shareholders' meeting, including matters specified under Article 172 of the Company Act not explicitly listed in the meeting notice, please refer to the Market Observation Post System (website: https://mops.twse.com.tw). Navigate to "One Single Entity/E-Documents Download/Annual Report and Shareholders' Meeting Relevant Information (Including Depository Receipt Information)": Key in Search Conditions (The Company's Code Number of Securities or Abbreviation and Year)/References of Each Proposal at The Shareholders' Meeting (or Meeting Handbook and Supplementary Information of The Meeting) For Search.and, and Select Relevant Information of A Shareholders' Meeting) For Searching.

VII. Shareholders may exercise their voting rights electronically for this meeting from May 2 to May 29, 2026. Please access the Taiwan Depository & Clearing Corporation's electronic voting platform and follow the provided instructions for operation (website: https://stockservices.tdcc.com.tw).

Sincerely yours,

The Board of Directors of Huang Hsiang Construction Corporation