CHBIO — Proxy Solicitation & Information Statement 2026

Apr 24, 2026

正瀚生技股份有限公司

CH BIOTECH R&D CO., LTD.

The 2026 Annual Shareholders' Meeting Notice

Dear Shareholders,

A. CH Biotech R&D Co., Ltd. (hereinafter referred to as "the Company") has scheduled the 2026 Annual Shareholders' Meeting on May 26th (Tuesday), 2026 at 9 AM at the Company's meeting room (address: No. 89, Wenxian Road, Nantou City, Nantou County). The shareholder attendance registration starts at 8:30 AM at the meeting venue. The meeting agenda is as follows:

(A) Reports on Company Affairs:
1. 2025 Business Report.
2. Audit Committee's 2025 Audit Report.
3. Report on the Distribution of Shareholders' Dividends and Bonuses for the Year 2025.
4. Report on 2025 Employees' and Directors' Remuneration.

(B) Proposals:
1. 2025 Business Report and Financial Statements.
2. 2025 Earnings Distribution.

(C) Questions and Motions.

B. Resolution of the Board of Directors on the proposal of 2025 shareholder's dividend distribution:
Cash dividends: Issuance of cash dividends of NT$ 4.3 per share.

C. The shareholder's Attendance Card and Proxy Form are hereby provided. If the shareholder decides to attend the meeting in person, please sign or affix the seal on the Attendance Card and bring it to the meeting venue on the day of the meeting. If the shareholder decides to assign a proxy, please sign or affix the seal on the Proxy Form, fill out the proxy name, national ID number and address, and mail (deliver) the document five (5) days before the Shareholders' Meeting to the Company's Stock Affairs Agent, Mega Securities Co., Ltd., Department of Stock Affairs (1F, No. 95, Section 2, Zhongxiao East Road, Zhongzheng District, Taipei City) to facilitate attendance and registration.

D. If any shareholder wishes to solicit proxies for the Shareholders' Meeting this time, the Company will produce the Solicitor Solicitation Information before April 24th, 2026 and disclose it on the website of Securities & Futures Institute. Investors who wish to make an inquiry may visit SFI's website (https://free.sfi.org.tw) on the Proxy Form Free Inquiry System.

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正瀚生技股份有限公司

E. According to Article 172 of the Company Act, Article 26-1 and Article 43-6 of the Securities and Exchange Act and relevant regulations, the contents of proposals to Shareholders’ Meeting may be found on MOPS (https://mops.twse.com.tw) by clicking on Electronic Books/Shareholders’ meetings or clicking on Profile/Company Profile to access the Company’s website.

F. In accordance with Article 13-1 of the Regulations Governing the Use of Proxies for Attendance at Shareholder Meetings of Public Companies, the verification of proxy votes at the Shareholders’ Meeting shall be processed by the Company's Stock Affairs Agent, Mega Securities Co., Ltd., Department of Stock Affairs.

G. Shareholders may exercise the voting rights via electronic form for the Shareholders’ Meeting this time from April 25th to May 23rd, 2026. Please log in to the eVoting system (https://stockservices.tdcc.com.tw) of Taiwan Depository & Clearing Corporation and vote according to the operating instructions.

H. No souvenirs will be issued at the Shareholders’ Meeting this time.

Sincerely,

Board of Directors

CH BIOTECH R&D CO., LTD.