Harbour Energy plc

("Harbour Energy" or the "Company")

Publication of 2023 Annual Report and AGM Notice

28 March 2024

Harbour Energy announces that it has today published on its website at www.harbourenergy.com the following documents:

§ Integrated Annual Report and Accounts and ESG Review for the year ended 31 December 2023 (the "2023 Annual Report"); and

§ Notice of the 2024 Annual General Meeting to be held on 9 May 2024 ("AGM Notice").

In accordance with Listing Rule 9.6, the 2023 Annual Report, AGM Notice and the 2024 AGM proxy form ("Proxy Form") have been submitted to the Financial Conduct Authority via the National Storage Mechanism and will shortly be available for inspection at: http://data.fca.org.uk/#/nsm/nationalstoragemechanism

The AGM will be held at No.11 Cavendish Square, London, W1G 0AN, at 10.00am on Thursday 9 May 2024.  The 2023 Annual Report, AGM Notice and Proxy Form will be posted today to those shareholders that have elected to receive hard copies of shareholder communications.

For the purposes of complying with the Disclosure and Transparency Rules, the 2023 Annual Report being submitted to the National Storage Mechanism contains the following regulated information in unedited form:

§ The principal risks and uncertainties facing the Company;

§ The Directors' responsibility statement made in respect of the Financial Statements and Directors' Report contained in the 2023 Annual Report; and

§ A statement regarding related party transactions.

Enquiries                                                                                                                       Tel: +44 (0)207 730 1111

Rachel Rickard, Company Secretary

Elizabeth Brooks, Head of Investor Relations