EXCELSIOR — Proxy Solicitation & Information Statement 2026

Jun 3, 2026

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Excelsior Medical

Meeting Notice

1. The 2026 shareholders' meeting will be convened at 9:00AM on June 25 (Thursday), 2026 at No. 631 Zhongzheng Road Zhonghe District, New Taipei City (RSL Hotel Taipei Zhonghe) (shareholder sign-in time: 8:30AM; sign-in location: same place as the meeting).

Major contents of the meeting:

(1) Report Items:

1. 2025 business report and 2026 business plan.
2. Audit Committee's review report on the 2025 financial statements.
3. 2025 distribution report of employee compensation and director remuneration.
4. 2025 distribution report of cash dividends.

(2) Proposal Items:

1. Adoption of 2025 financial statements.
2. Adoption of 2025 earnings distribution.

(3) Discussion Items:

1. Releasing the prohibition on directors from participation in competition businesses.
2. Amending part of the articles of the Company's "Articles of Incorporation".
3. Amending part of the articles of the Company's "Operational Procedures for Acquisition or Disposal of Assets".
4. Amending part of the articles of the Company's "Rules of Procedure for Shareholders Meetings".

(4) Extraordinary motion.

1. The Board of Directors has determined to distribute a cash dividend of NT$ 809,980,061 to shareholders for the year 2025, the cash dividend shall be NT$4.30 per share. The amount rounded off from the current cash dividend shall be listed as the Company's other income. The Board of Directors has also determined that April 23, 2026 shall be the ex-dividend trading date, May 1, 2026 shall be the ex-dividend record date, and May 21, 2026 shall be the cash dividend payment date.

2. According to Article 209 of the Company Act, a director who acts for themselves or on behalf of others within the company's business scope shall explain to the Board of Shareholders the essential contents of such an act and obtain its approval. In case that any of the Company's directors invests in or operates a business same as or similar to the Company and acts as a director in such business, they shall submit the case to the shareholders' meeting and obtain its approval. If the Company's director is also under the aforesaid circumstance, the Company agrees to release the prohibition on directors from participation in competitive businesses.

3. According to Article 165 of the Company Act, the share ownership transfer shall be suspended from April 27, 2026 to June 25, 2026.

4. In addition to the announcement, we are enclosing a shareholder attendance registration card and a proxy form with this letter. We kindly request your presence at the meeting. If you plan to attend the meeting in person, please fill out the first copy of the attendance registration card and bring it with you to the venue on the day of the meeting. If you intend to appoint a proxy to attend on your behalf, please fill out the second copy of the proxy form along with the first copy of the attendance registration card and return them together. Please ensure that they are delivered to the Shareholder Services Department of our designated share registrar, Unified Securities Co., Ltd., no later than 5 days prior to the meeting. Once the information has been verified, the attendance registration card will be completed and sent back to your appointed proxy as a receipt for attending the shareholders' meeting. When shareholders, solicitors, appointed agents, and authorized representatives attend the shareholders' meeting, please bring the original identification document with a photo for verification. For the representative appointed by a legal entity, it is also necessary to submit an appointment letter with the official

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Excelsior Medical

seal of the company.

1. The Company will produce a compiled list for the information of solicitors' solicitation before May 25, 2026 for those shareholders wishing to solicit letters of proxy and disclose it on the website of Securities & Futures Institutes at http://free.sfi.org.tw. Investors may directly visit the website, go to the "Free inquiry system for proxy letter announcement related information", click the "Enter the inquiry system for proxy letter announcement and meeting data" and fill in the inquiry terms to inquire the details.

2. For this shareholders' meeting, shareholders have the option to exercise their voting rights electronically. The exercise period is from May 26, 2026, to June 22, 2026. Please log in to the website of Taiwan Depository & Clearing Corporation's Shareholders' E-voting System, "StockVote" at https://www.stockservices.tdcc.com.tw, and follow the provided instructions to cast your vote.

3. The designated verification institution for the proxy form of our company's shareholders' meeting is the Shareholder Services Department of Unified Securities Co., Ltd.

4. If there are matters that should be listed and explained in the convocation reasons under Article 172 of the Company Act, please visit the Taiwan Stock Exchange Market Observation Post System (MOPS) website at https://mops.twse.com.tw/mops/#/web/t57sb01_q5. Follow the path: click on "Basic Information," then "Electronic Books," and select "Annual Reports and Shareholders' Meeting Related Information." Enter our company code "4104" and the fiscal year "115," then choose either "Reference Materials for Shareholders' Meeting Agenda" or "Meeting Handbook and Supplementary Materials" to access the relevant information.

Yours Sincerely

Board of Directors,

Excelsior Medical Co., Ltd.