Highwealth — Proxy Solicitation & Information Statement 2026

May 26, 2026

Highwealth Construction Corporation

Meeting Notice

for 2026 Annual Shareholders' Meeting

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.

I. Method for convening the meeting: A physical shareholders' meeting.
Time: June 17, 2026 (Wednesday) at 9:00 a.m.
Location: No.8 Zhifu Rd, Jhongshan District, Taipei City
(Light and Shadow Hall, Dazhi Denwell Hotel)

II. The time during which attendance registrations for shareholders, solicitors and proxies (collectively "shareholders") will be accepted, the place to register for attendance:
Time: June 17, 2026 (Wednesday) at 8:30 a.m.
Location: No.8 Zhifu Rd, Jhongshan District, Taipei City
(Light and Shadow Hall, Dazhi Denwell Hotel)

III. Report Items
(1) The Company's Business Report for 2025.
(2) Audit Committee's Review Report on the Company's 2025 Audited Financial Statements.
(3) Report on the Distribution of Employees' Compensation and Remuneration to Directors for 2025.
(4) Report on the Distribution of Cash Dividends from the Company's Retained Earnings for 2025.
(5) Report on Offering and Issuance Status of Corporate Bonds.

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IV. Proposals for Acceptance and Approval

(1) Business Report and Financial Report for 2025.
(2) Proposal for Distribution of 2025 Earnings.

V. Election Matters

Re-election of all the Directors of the Company.

VI. Other Proposals

Proposal for the Release on Prohibition of Newly Elected Directors and their Representatives Working in Competing Companies.

VII. Extemporary Motions

VIII. If the Company decides to hold a meeting under Article 172 of the Company Law, electronic files will be posted to the Market Observation Post System at https://emops.twse.com.tw. Please select "Shareholders' Meetings" under the "Electronic Services" tab, enter the year, and click "GO" to find the meeting files corresponding to Company code.

There are no souvenirs at the shareholders' meeting.

IX. Resolution by the board of directors to distribute 2025 dividends :

(1) Appropriations of earnings in cash dividends to shareholders (NT$ per share): 4 (NT$4,000 per 1,000 share)
(2) The cash dividend disbursed shall be rounded down to the nearest dollar (any amount below NT$1 shall be omitted). The total fractional cash dividends less than NT$1 shall be transferred to the Company's other earnings.
(3) Seven directors (including three independent directors) were elected at the shareholders' meeting. The candidates nominated under the nomination system are: Directors Representatives of Tianyuan Investment Co., Ltd. Zheng Qintian and Zheng Xiuhui; Representatives of Run Ying Investment Co., Ltd. Wang JiawChyi and Fan Huachun; Independent Directors Ho TsaiFeng, Chen Tachun and Kuo Yafan. For more information about the candidates' education background and work experiences, please visit the Market Observation Post System at https://mops.twse.com.tw enter the

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"Announcement Enquiry" page to enter your request.

(4) If the outstanding shares changed due to recapitalization through offering new common shares, cancellation or issuance of new shares through the conversion of convertible bonds, and the transactions, conversion, cancelation of treasury stock result in the distributing ratio of stock dividends changed, the final ratio will be determined fully by the Board authorized by Shareholders' Meeting. If the case needs to be changed by the authorities, it will be determined fully by the Board authorized by Shareholders' Meeting.

X. Pursuant to Article 165 of the Company Act, the Company hereby closes the share transfer registration from April 19, 2026 to June 17, 2026.

XI. 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 Company's stock agency, Capital Securities Co., Ltd. Transfer Agent, no later than June 11, 2026, 5 days prior to the meeting date.

XII. 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) on May 15, 2026. Shareholders can navigate to SFI's web page (https://free.sfi.org.tw) to view relevant information. (TWSE code: 2542)

XIII. Shareholders may exercise his/her/its voting rights by way of electronic transmission during the period from May 16, 2026 to June 14, 2026. Please log in the "Stockvote" (https://www.stockvote.com.tw) of Taiwan Depository & Clearing Corporation (TDCC) and vote in.

XIV. The Transfer Agency Department of Capital Securities Co., Ltd. is the proxy tallying and verification institution for this Annual meeting.

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

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To Shareholders

Board of Directors

Highwealth Construction Corporation