Investor Relations Management System (Applicable after the issuance and listing of H shares)
Sinovac Biopharmaceutical Co., Ltd. Investor Relations Management System
(Applicable after H shares are issued and listed)
September 2025
Directory
Chapter 1 General Provisions................................................................................................................1
Chapter 2 Principles and Purposes of Investor Relations Management......................................................1
Chapter 3 The work contents and methods of investor relations management......................................................2
Chapter 4 Organization and Implementation of Investor Relations Management Work......................................................8
Chapter 5 Supplementary Provisions................................................................................................10
Sinovac Biopharmaceutical Co., Ltd.
Investor Relations Management System
Chapter 1 General Provisions
Article 1 is to standardize the information communication between Sinovac Biopharmaceutical Co., Ltd. (hereinafter referred to as the "Company") and investors and potential investors (hereinafter collectively referred to as the "Investors"), effectively establish a good communication platform between the company and investors (especially public investors), improve the corporate governance structure, effectively protect the legitimate rights and interests of investors (especially public investors), and form a long-term, stable, harmonious and positive interactive relationship between the company and investors. According to the "Company Law of the People's Republic of China" and "The Chinese This system is specially formulated based on the relevant laws, regulations, normative documents such as the Securities Law of the People's Republic of China, the Guidelines for the Management of Investor Relations of Listed Companies, the Shanghai Stock Exchange's Science and Technology Innovation Board Listing Rules (hereinafter referred to as the "Science and Technology Innovation Board Listing Rules"), the Securities Listing Rules of The Stock Exchange of Hong Kong Limited (hereinafter referred to as the "Stock Exchange Listing Rules"), and the Articles of Association of Sinovac Biopharmaceutical Co., Ltd. (hereinafter referred to as the "Articles of Association"), taking into account the actual situation of the company.
Article 2 The term "investor relations management" as mentioned in this system refers to the relevant activities in which the company strengthens communication with investors and potential investors by facilitating the exercise of shareholders' rights, information disclosure, interactive communication, and handling of complaints, and enhances investors' understanding and recognition of the company, so as to improve the level of corporate governance and the overall value of the enterprise, and achieve the purpose of respecting investors, rewarding investors, and protecting investors.
Article 3 The company's investor relations management work shall reflect the principles of fairness, impartiality and openness, treat all investors equally, and ensure that all investors enjoy the right to know and other legitimate rights and interests.
Article 4 When conducting investor relations management, a company shall strictly abide by the relevant laws, administrative regulations, relevant regulatory rules, departmental rules, and normative documents of the securities regulatory authorities and stock exchanges where the company's stocks are listed, and shall not release or leak undisclosed material information in any way during investor relations activities.
Chapter 2 Principles and Purposes of Investor Relations Management
Article 5 Basic principles of investor relations management:
(1) Principle of compliance. The company's investor relations management should be carried out on the basis of fulfilling information disclosure obligations in accordance with the law, and in compliance with laws, regulations, rules and normative documents, industry norms and self-discipline rules, the company's internal rules and regulations, as well as the ethics and codes of conduct generally observed by the industry;
(2) The principle of equality. When companies carry out investor relations management activities, they should treat all investors equally, especially create opportunities and provide convenience for small and medium-sized investors to participate in activities;
(3) The principle of initiative. In addition to mandatory information disclosure, under compliance conditions, companies should proactively carry out investor relations management activities, listen to investor opinions and suggestions, and respond to investor demands in a timely manner. The company can make voluntary disclosures to all investors of the company and proactively disclose other relevant information that investors are concerned about;
(4) The principle of honesty and trustworthiness. In investor relations management activities, companies should pay attention to integrity, stick to the bottom line, standardize operations, assume responsibility, and create a healthy market ecology;
(5) Principle of high efficiency and low consumption. When choosing investor relations working methods, companies should fully consider improving communication efficiency and reducing communication costs;
(6) Principles of interactive communication. Companies should actively listen to investors’ opinions and suggestions, achieve two-way communication between the company and investors, and form positive interactions.
Article 6 The purpose of the company’s investor relations management work is:
(1) Promote a healthy relationship between the company and investors and enhance investors’ further understanding and familiarity with the company;
(2) Establish a stable and high-quality investor base and obtain long-term market support;
(3) Form a corporate culture that serves investors and respects investors;
(4) An investment philosophy that promotes the maximization of the company’s overall interests and the growth of shareholders’ wealth;
(5) Increase the transparency of company information disclosure and improve corporate governance.
Chapter 3 Work Content and Methods of Investor Relations Management
Article 7 The work objects of investor relations management mainly include:
(1) Investors;
(2) Securities analysts and industry analysts;
(3) Financial media, industry media and other communication media;
(4) Investor relations consultant;
(5) Securities regulatory agencies and other relevant government departments;
(6) Other relevant individuals and institutions.
Article 8 The content of communication between the company and investors in investor relations work mainly includes:
(1) The company’s development strategy, including the company’s development direction, development plan, competition strategy and business policies, etc.;
(2) Legal information disclosure and explanations, including regular reports and temporary announcements;
(3) Operation and management information that the company can disclose in accordance with the law, including production and operation status, financial status, research and development of new products or new technologies, operating performance, dividend distribution, etc.;
(4) Major matters that the company can disclose in accordance with the law, including the company's major investments and changes, asset restructuring, acquisitions and mergers, external cooperation, external guarantees, major contracts, related transactions, major litigation or arbitration, changes in management, changes in major shareholders, and other information;
(5) Corporate culture construction;
(6) The company’s environmental, social and governance information;
(7) Methods, channels and procedures for exercising shareholders’ rights;
(8) Information on handling investor complaints;
(9) Risks and challenges that the company is facing or may face;
(10) Other relevant information that the company can disclose in accordance with the law and information that has been publicly disclosed.
Article 9 The main ways for the company to communicate with investors include but are not limited to:
(1) Announcements (including regular reports and temporary announcements);
(2) Shareholders’ meeting;
(3) Company website;
(4) One-to-one communication;
(5) Mailing information;
(6) Telephone consultation and fax contact;
(7) On-site visits or discussions;
(8) SSE e-interaction;
(9) Analyst meetings;
(10) Roadshow;
(11) Investor briefing;
(12) Other methods that comply with relevant regulations of the China Securities Regulatory Commission and Shanghai Stock Exchange.
Article 10 The company may establish a communication mechanism with investors on major matters, and fully communicate and negotiate with investors through a variety of methods when formulating major plans involving shareholders' rights and interests.
Article 11 Information that should be disclosed in accordance with laws, regulations, and relevant regulatory rules of the securities regulatory authorities and stock exchanges where the company's stocks are listed must be published in the company's designated newspapers and designated websites for information disclosure as soon as possible. At the same time, overseas regulatory announcements are published on the HKExDisclosure website and the company's website in accordance with the "Stock Exchange Listing Rules".
Any announcement or notice published in accordance with the "Stock Exchange Listing Rules" must be uploaded to the website of the Hong Kong Stock Exchange and the company's website on time in accordance with the requirements of the "Stock Exchange Listing Rules". In addition, any announcements or notices published in newspapers and magazines in accordance with the "Stock Exchange Listing Rules" must indicate that the relevant content can be viewed on both the Hong Kong Stock Exchange website and the company's website.
The information disclosed by the company in other public media shall not precede the designated newspapers and designated websites, and shall not be replaced by company announcements in other forms such as press releases or answering reporters' questions.
The company should clearly distinguish between promotional advertising and media reports, and should not use promotional advertising materials or paid means to influence the media's objective and independent reporting.
Companies should pay attention to media reports in a timely manner and respond appropriately when necessary.
Article 12 The company shall give full consideration to the time, place and method of convening the shareholders' meeting, provide convenience for shareholders, especially small and medium-sized shareholders, to participate in the shareholders' meeting, and provide necessary time for investors to speak, ask questions and communicate with the company's directors and senior managers. The shareholders' meeting should provide an online voting method. The company can fully communicate with investors and solicit opinions extensively after making announcements in accordance with information disclosure rules and before convening the shareholders' meeting.
Article 13 Companies should strengthen the construction and operation of investor network communication channels, open an investor relations column on the company's official website, collect and respond to investors' inquiries, complaints, suggestions and other requests, and timely release and update information related to investor relations management.
Companies should actively use public welfare network infrastructure such as China Investor Network and stock exchange investor relations interactive platforms to carry out investor relations management activities.
Article 14 The company should set up a dedicated investor consultation hotline, fax and e-mail, etc., and have a dedicated person who is familiar with the situation to be in charge of it, to ensure that the line is open during working hours, to answer the questions conscientiously and friendly, and to provide feedback to investors in an effective form. Any changes to the number or address should be announced promptly.
Article 15 Companies should pay full attention to relevant information on the SSE e-interactive platform, provide timely responses to investor questions, and timely publish and update information related to investor relations management. For issues that are frequently asked by investors or that science and technology companies consider to be important, the company should summarize and sort out the issues and submit the questions and answers to the "Hot Questions" column of the SSE e-interactive platform for display. The company can arrange for investors, fund managers, and analysts to visit the company on-site for discussions and communication. The company should arrange the visit process reasonably and properly to enable visitors to understand the company's business and operating conditions, and at the same time, be careful to avoid visitors having the opportunity to obtain inside information and undisclosed information on major events.
Article 16 The company can communicate with the company through road shows, analyst meetings, etc., answer questions and listen to relevant opinions and suggestions.
Article 17 Companies and other information disclosure obligors shall perform their information disclosure obligations in a timely and fair manner in strict accordance with laws, regulations, self-regulatory rules and the Articles of Association. The information disclosed shall be true, accurate, complete, concise, clear and easy to understand, and shall not contain false records, misleading statements or major omissions.
Article 18 In addition to fulfilling information disclosure obligations in accordance with the law, companies shall actively hold investor briefings in accordance with the regulations of the China Securities Regulatory Commission and stock exchanges to introduce the situation to investors, answer questions, and listen to suggestions. Investor briefings include performance briefings, cash dividend briefings, major event briefings, etc. Under normal circumstances, the chairman or general manager should attend the investor briefing. Those who are unable to attend should publicly explain the reasons. The board secretary, financial director or other relevant responsible persons should attend the briefing.
When a company convenes an investor briefing, it shall announce it in advance and promptly disclose the information of the briefing afterwards. Investor briefings should be conducted in a manner that is convenient for investors to participate.
Article 19 If the following circumstances exist, the company shall hold an investor briefing meeting in accordance with the regulations of the China Securities Regulatory Commission and the stock exchange:
(1) The company’s current cash dividend level does not meet relevant regulations, and the reasons need to be explained;
(2) The company terminates its reorganization after disclosing its reorganization plan or reorganization report;
(3) The company's securities transactions experience abnormal fluctuations stipulated in relevant rules, and the company finds after verification that there are undisclosed major events;
(4) Major events related to the company have attracted great attention or doubts from the market;
(5) Other circumstances when investor briefings should be held.
Article 20 If the company plans to hold an investor briefing, it shall issue an announcement prior to the date of the proposed briefing and preview the specific matters of the briefing. The announcement should include the following:
(1) The type of this briefing and the specific matters disclosed in the briefing;
(2) The time and place of this briefing meeting;
(3) Relevant information of institutions and individuals participating in the briefing, including relevant personnel of science and technology innovation companies, institutional investors, intermediaries, media, relevant regulatory agencies, industry experts, etc.;
(4) How institutions and individuals can participate in this briefing on site, online or by phone;
(5) Interactive channels for collecting investor questions in advance;
(6) The person in charge and contact information of this investor briefing.
The company shall invite investors to participate in investor briefings through on-site, online, telephone, etc., and open channels for investors to ask questions before and during the investor briefings. The company should respond to issues of greater concern to investors at the briefing meeting. The company can invite relevant intermediaries, media and other personnel to participate in investor briefings on-site, online and by telephone.
If a company convenes an investor briefing meeting but does not disclose it to investors in real time online, it shall publish an announcement on a media that meets the conditions prescribed by the China Securities Regulatory Commission or fully and truthfully disclose the convening of the briefing meeting to investors through the service platform of SSE Information Network Co., Ltd.
Article 21 After a company carries out relevant investor relations activities, it shall summarize and publish records of investor relations activities such as investor briefings, securities analyst surveys, road shows, etc. through the "Listed Company Release" column of the SSE e-interactive platform as soon as possible. Activity records should at least include the following:
(1) Participants, time, place and form of the activity;
(2) Communication content and specific Q&A records;
(3) A statement on whether this activity involves significant information that should be disclosed;
(4) Presentations, documents provided and other attachments used during the event (if any);
(5) Other contents required by the Exchange.
Article 22 After the disclosure of the annual report, the company shall promptly hold a performance briefing meeting in accordance with the regulations of the China Securities Regulatory Commission and the stock exchange to explain the company's industry status, development strategy, production and operations, financial status, dividends, risks and difficulties and other content that investors are concerned about. When a company holds a performance briefing, it should collect questions from investors in advance and focus on the effectiveness of communication and interaction with investors, which can be in the form of video, voice, etc.
Article 23 The company shall actively support and cooperate with investors' exercise of shareholder rights in accordance with the law, as well as investor protection agencies' shareholding exercise, public solicitation of shareholder rights, dispute mediation, representative litigation and other activities to safeguard the legitimate rights and interests of investors.
If a dispute arises between an investor and a company, both parties may apply to a mediation organization for mediation. If an investor requests mediation, the company shall actively cooperate.
Article 24: The company shall bear the primary responsibility for handling complaints raised by investors against the company, handle them in accordance with the law, and respond to investors in a timely manner.
Chapter 4 Organization and Implementation of Investor Relations Management Work
Article 25 The secretary of the board of directors is the person in charge of the company’s investor relations management affairs. Unless explicitly authorized and trained, other directors, senior managers and employees of the company are not allowed to speak on behalf of the company in investor relations activities.
Article 26 The company's board of directors office is responsible for the daily affairs of investor relations management, and is led by the secretary of the board of directors. It is responsible for the organization and coordination of investor relations management, and provides comprehensive and systematic training on investor relations management for the company's senior managers and relevant personnel.
Article 27 The company should establish a good internal coordination mechanism and information collection system. The departments or personnel responsible for investor relations should promptly collect production, operation, financial, litigation and other information of various departments and subordinate companies, and all departments and subordinate companies of the company should actively cooperate.
Article 28 The company’s personnel engaged in investor relations work need to possess the following qualities and skills:
(1) Comprehensively understand all aspects of the company, including industry, products, technology, operations, management, research and development, marketing, finance, personnel and other aspects;
(2) Have a good knowledge structure and professional quality, and be familiar with corporate governance, financial accounting and other relevant laws and regulations, and the operating mechanisms of the securities market;
(3) Have good communication and coordination skills and psychological quality;
(4) Have good conduct and be honest and trustworthy;
(5) Accurately understand the content and procedures of investor relations management.
With the authorization of the chairman, the secretary of the board of directors may hire a professional investor relations agency to assist the company in implementing investor relations work as needed.
Article 29 The main responsibilities of investor relations management include:
(1) Formulate an investor relations management system and establish a working mechanism;
(2) Organize investor relations management activities to communicate with investors;
(3) Organize the timely and appropriate handling of investor inquiries, complaints, suggestions and other demands, and provide regular feedback to the company's board of directors and management;
(4) Manage, operate and maintain relevant channels and platforms for investor relations management;
(5) Ensure that investors exercise their shareholder rights in accordance with the law;
(6) Cooperate and support investor protection agencies in carrying out relevant work to safeguard the legitimate rights and interests of investors;
(7) Statistically analyze the number, composition and changes of the company’s investors;
(8) Carry out other activities that are conducive to improving investor relations.
Article 30 The company and its controlling shareholders, actual controllers, directors, senior managers and staff shall not engage in the following situations during investor relations management:
(1) Disclose or publish information about major events that have not yet been made public, or information that conflicts with information disclosed in accordance with the law;
(2) Disclose or publish misleading, false or exaggerated information;
(3) Selective disclosure or release of information, or major omissions;
(4) Make predictions or promises about the company’s securities prices;
(5) Speak on behalf of the company without explicit authorization;
(6) Discrimination, contempt and other unfair treatment of small and medium-sized shareholders or unfair disclosure;
(7) Violating public order and good customs and harming social and public interests;
(8) Other behaviors that violate information disclosure regulations or affect the normal trading of the company's securities and their derivatives.
Article 31 If a company leaks undisclosed major information during investor relations activities, it shall immediately issue an announcement through the designated information disclosure media and take other necessary measures.
Article 32 The company shall provide systematic training on investor relations management to directors, senior managers and relevant employees in an appropriate manner; when carrying out major investor relations activities, it may also hold special training to improve their ability to communicate with specific objects, enhance their understanding of relevant laws, regulations, business rules and company rules and regulations, and establish a sense of fair disclosure.
Article 33 The company shall establish and improve investor relations management files and may create an investor relations management database and archive them in electronic or paper form.
When a company carries out various investor relations management activities, it shall use text, charts, audio and video, etc. to record the activities and communication content and record them in the investor relations management files.
Article 34 The company may hire professional investor relations agencies or consultants to consult, plan and assist in the implementation of the company's investor relations management work, including media relations, development strategies, investor relations management training, crisis management, analyst meetings and performance briefing arrangements, etc.
Investor relations advisors are not permitted to speak on behalf of the company at investor relations events.
Chapter 5 Supplementary Provisions
Article 35 If this system is inconsistent with relevant laws, regulations, relevant regulatory rules of the securities regulatory authorities and stock exchanges where the company's shares are listed, departmental rules and relevant provisions of the regulatory agencies, and the "Articles of Association", the relevant laws, regulations, relevant regulatory rules of the securities regulatory agencies and stock exchanges where the company's shares are listed, departmental rules and relevant provisions of the regulatory agencies, and the "Articles of Association" shall be implemented.
Article 36 This system shall be formulated, modified and interpreted by the company's board of directors.
Article 37 This system will take effect upon review and approval by the board of directors from the date when the overseas listed shares (H shares) issued by the company are listed on the Stock Exchange of Hong Kong Limited. After this system takes effect, the company's original "Investor Relations Management System" will automatically become invalid.
Sinovac Biopharmaceutical Co., Ltd.
September 29, 2025