Holding(s) in Company

About this update from Endeavour Mining Plc

Endeavour Mining plc (“the Company”) announces that it received the following notification from Blackrock, Inc of its interests in the Company as at 3 December 2025 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00BL6K5J42  Issuer Name ENDEAVOUR MINING PLC UK or Non-UK Issuer UK 2. Reason for Notification An acquisition or disposal of voting rights 3. Details of person subject to the notification obligation Name BlackRock, Inc. City of registered office (if applicable) Wilmington Country of registered office (if applicable) USA 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above City of registered office (if applicable) Country of registered office (if applicable) 5. Date on which the threshold was crossed or reached 03-Dec-2025 6. Date on which Issuer notified 04-Dec-2025 7. Total positions of person(s) subject to the notification obligation 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) 9. Information in relation to the person subject to the notification obligation 2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary) 10. In case of proxy voting Name of the proxy holder The number and % of voting rights held The date until which the voting rights will be held 11. Additional Information BlackRock Regulatory Threshold Reporting Team Jana Blumenstein 020 7743 3650 12. Date of Completion 4 th December 2025 13. Place Of Completion 12 Throgmorton Avenue, London, EC2N 2DL, U.K. Attachment

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