About Us Our BioBank Platform Technology Our Drug Programmes News Contact us Corporate Governance Statement INVESTORS NEWS Date of last update: 24 May 2021 Introduction The Board is accountable to the Company’s shareholders for good corporate governance and it is the objective of the Board to attain a high standard of corporate governance. The Board has adopted the Quoted Companies Alliance Corporate Governance Code (QCA Code) and the following text sets out how the Group complies with the 10 Principles of the QCA Code. The Board will monitor the suitability of the QCA Code on an annual basis and revise its governance framework as appropriate as the Group evolves. References to "the Company" refer to Synairgen plc, and references to "the Group" refer to Synairgen plc and its wholly-owned subsidiaries. Principle 1 - Establish a strategy and business model which promote long-term value for shareholders Principle 2 - Seek to understand and meet shareholder needs and expectations Principle 3 - Take into account wider stakeholder and social responsibilities and their implications for long-term success Principle 4 - Embed effective risk management, considering both opportunities and threats, throughout the organization Principle 5 - Maintain the Board as a well-functioning, balanced team led by the chair Principle 6 - Ensure that between them the directors have the necessary up-to-date experience, skills and capabilities Principle 7 - Evaluate Board performance based on clear and relevant objectives, seeking continuous improvement Principle 8 - Promote a corporate culture that is based on ethical values and behaviours Principle 9 - Maintain governance structures and processes that are fit for purpose and support good decision-making by the Board Principle 10 - Communicate how the company is governed and is performing by maintaining a dialogue with shareholders and other relevant stakeholders Synairgen plc Registered in England and Wales No. 5233429 Registered office Mailpoint 810, Level F, South Block, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK

About Us Our BioBank Platform Technology Our Drug Programmes News Contact us Links INVESTORS NEWS Listed to the right are links to organisations and websites you may find useful for further research or reference. American Lung Association – http://www.lung.org American Thoracic Society – http://www.thoracic.org Asthma UK – http://www.asthma.org.uk British Lung Foundation – http://www.lunguk.org British Thoracic Society – http://www.brit-thoracic.org.uk European Medicines Agency (EMEA) – http://www.emea.europa.eu Global Initiative For Asthma – http://www.ginasthma.com World Health Organisation – http://www.who.int/en Global initiative for Chronic Obstructive Lung Disease – http://www.goldcopd.com Medicines and Healthcare products Regulatory Agency – http://www.mhra.gov.uk Synairgen plc Registered in England and Wales No. 5233429 Registered office Mailpoint 810, Level F, South Block, Southampton General Hospital, Tremona Road, Southampton, SO16 6YD, UK