/-- Announcement on Resolutions of the 1st Extraordinary General Meeting in 2025
NEWS

-- Announcement on Resolutions of the 1st Extraordinary General Meeting in 2025

Shanghai Stock Exchange
2025/08/30

Securities code: 688136 Securities abbreviation: Sinovac Pharmaceuticals Announcement number: 2025-070 Sinovac Biopharmaceuticals Co., Ltd.

Announcement of Resolutions of the First Extraordinary Shareholders Meeting in 2025

The company's board of directors and all directors guarantee that the announcement does not contain any false records, misleading statements or major omissions, and assume legal responsibility for the authenticity, accuracy and completeness of its contents in accordance with the law.

Important content reminder:

 Whether any motions were rejected at this meeting: None

1. Meeting convening and attendance

(1) Time of the shareholders’ meeting: August 29, 2025

(2) The location of the shareholders' meeting: Conference Room on the 19th floor, Building B, Chuangyi Technology Building, at the intersection of High-tech Middle 1st Road and Keji Middle 1st Road, Nanshan District, Shenzhen City

(3) Common shareholders, special voting rights shareholders, preference shareholders whose voting rights have been restored and those attending the meeting

The number of voting rights it holds:

  1. Number of shareholders and proxies attending the meeting 84 Number of ordinary shareholders 84

  2. Number of voting rights held by shareholders attending the meeting 121,857,761 Number of voting rights held by ordinary shareholders 121,857,761

  3. The proportion of the number of voting rights held by shareholders attending the meeting to the number of voting rights of the company (%) 61.5110 The proportion of the number of voting rights held by ordinary shareholders to the number of voting rights of the company (%) 61.5110

(4) Whether the voting method complies with the provisions of the Company Law and the company's articles of association, and the status of the shareholders' meeting, etc.

This meeting was convened by the board of directors and chaired by Chairman Deng Xueqin. Voting was conducted through a combination of on-site voting and online voting. The convening, holding and voting of the meeting complied with the provisions of the Company Law and the Articles of Association.

(5) Attendance of the company’s directors, supervisors and board secretary

  1. The company has 7 current directors and 7 people present;

  2. The company has 3 current supervisors and 3 persons present;

  3. Ms. Wang Xiaoqin, Secretary of the Board of Directors, attended this meeting, and other senior management personnel attended this meeting as non-voting delegates.

2. Proposal review status

(1) Non-cumulative voting proposals

  1. Proposal Name: Proposal on Cancellation of the Board of Supervisors, Change of Registered Capital and Amendment to the Articles of Association Review Results: Passed

Voting status:

Agree Objection Abstaining shareholder type Proportion Proportion of votes Proportion (%) Number of votes Number of votes

(%) (%) Ordinary shares 121,830,838 99.9779 22,367 0.0184 4,556 0.0037

  1. Proposal Name: Proposal on Amending the Corporate Governance System

Review result: Passed

Voting status:

Agree Objection Abstaining shareholder type Proportion Proportion of votes Proportion (%) Number of votes Number of votes

(%) (%) Ordinary shares 121,831,638 99.9786 21,567 0.0177 4,556 0.0037

  1. Proposal Name: Proposal on the Company’s Plan to Issue Science and Technology Innovation Bonds

Review result: Passed

Voting status:

Agree Objection Abstaining shareholder type Proportion Proportion of votes Proportion (%) Number of votes Number of votes

(%) (%) Ordinary shares 121,829,433 99.9768 28,067 0.0230 261 0.0002

(2) Voting status of cumulative voting proposals

  1. Proposal on the general election of the Board of Directors and the nomination of non-independent directors of the third Board of Directors

The number of votes obtained accounts for the motions attended. Whether

Proposal name Number of votes obtained Valid voting sequence number of the meeting Proportion of right to be elected (%)

Regarding the election of Deng Xueqin as the third director

4.01 121,595,479 99.7848 This is the resolution of non-independent directors

Regarding the election of Zhao Yanqing as the third director

4.02 121,544,565 99.7430 This is the resolution of non-independent directors

Regarding the election of Cui Ning as the third board of directors

4.03 121,544,775 99.7432 It is a proposal of non-independent directors

Regarding the election of Wang Xiaoqin as the third director

4.04 121,543,542 99.7421 Yes

Proposals of meeting non-independent directors

  1. Proposal on the general election of the Board of Directors and the nomination of independent directors for the third Board of Directors

The number of votes obtained accounts for the motions attended. Whether

Proposal name Number of votes obtained Valid voting sequence number of the meeting Proportion of right to be elected (%)

About the election HE RUYI (He Ruyi) is

5.01 121,577,488 99.7700 is the proposal of the independent directors of the third session of the Board of Directors

Regarding the election of Zhang Hanbin as the third director

5.02 121,548,127 99.7459 This is the resolution of the independent directors

Regarding the election of Fang Junhui as the third director

5.03 121,549,082 99.7467 Yes

Proposal of independent directors meeting

(3) When major matters are involved, the voting status of less than 5% of shareholders should be explained.

Motion Agree Objection Abstain

Motion name

Serial number Number of votes Proportion (%) Number of votes Proportion (%) Number of votes Proportion (%) Regarding the company’s proposed issuance of science and technology innovation bonds

3 313,878 91.7219 28,067 8.2018 261 0.0763 Motion

Regarding the election of Deng Xueqin as the third board of directors

4.01 79,924 23.3555

Proposals from non-independent directors

Regarding the election of Zhao Yanqing as the third board of directors

4.02 29,010 8.4773

Proposals from non-independent directors

Regarding the election of Cui Ning as the third session of the Board of Directors

4.03 29,220 8.5387

Proposal of independent directors

Regarding the election of Wang Xiaoqin as the third board of directors

4.04 27,987 8.1784

Proposals from non-independent directors

Regarding the election of HERUYI (He Ruyi) as the No. 1

5.01 61,933 18.0982 Proposal of independent directors of the third session of the Board of Directors

Regarding the election of Zhang Hanbin as the third board of directors

5.02 32,572 9.5182 Proposal of independent directors

Regarding the election of Fang Junhui as the third board of directors

5.03 33,527 9.7973

Proposal of independent directors

(4) Explanation of relevant circumstances regarding voting on motions

  1. Proposal 1 is a special resolution and has been passed by more than two-thirds of the voting rights held by shareholders or shareholders’ proxies present at this shareholders’ meeting;

  2. Proposals 3-5 carried out separate counting of votes for small and medium-sized investors.

3. Lawyer’s testimony

  1. The law firm witnessing this shareholders’ meeting: Beijing Jiayuan Law Firm

Lawyers: Li Xueying, Zeng Yuzhu

  1. Lawyer’s concluding comments:

In summary, our firm believes that the convening and convening procedures of the company’s shareholders’ meeting, the qualifications of the convenor and attendees, and the voting procedures are in compliance with the provisions of the Company Law, the Rules of Shareholders’ Meetings and other laws and regulations, as well as the Articles of Association, and the voting results are legal and valid.

Announcement is hereby made.

Board of Directors of Sinovac Biopharmaceutical Co., Ltd.

August 30, 2025