Business
Holding(s) in Company
Cobas Asset Management, SGIIC, S.A. has increased its holding in EnQuest PLC, crossing a notification threshold on December 15, 2025. The firm now holds 9.062366% of the voting rights, representing 171,281,386 shares, up from a previous notification of 7.022206%. This acquisition of voting rights was made across multiple portfolios on behalf of underlying clients, with Cobas Asset Management delegated the exercise of voting rights. Disclaimer*

About this update from Enquest Plc
TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00B635TG28 Issuer Name ENQUEST 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 Cobas Asset Management, SGIIC, S.A. City of registered office (if applicable) Madrid Country of registered office (if applicable) Spain 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 15-Dec-2025 6. Date on which Issuer notified 16-Dec-2025 7. Total positions of person(s) subject to the notification obligation % of voting rights attached to shares (total of 8.A) % of voting rights through financial instruments (total of 8.B 1 + 8.B 2) Total of both in % (8.A + 8.B) Total number of voting rights held in issuer Resulting situation on the date on which threshold was crossed or reached 9.062366 0.000000 9.062366 171281386 Position of previous notification (if applicable) 7.022206 0.000000 7.022206 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares Class/Type of shares ISIN code(if possible) Number of direct voting rights (DTR5.1) Number of indirect voting rights (DTR5.2.1) % of direct voting rights (DTR5.1) % of indirect voting rights (DTR5.2.1) GB00B635TG28 171281386 9.062366 Sub Total 8.A 171281386 9.062366% 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Type of financial instrument Expiration date Exercise/conversion period Number of voting rights that may be acquired if the instrument is exercised/converted % of voting rights Sub Total 8.B1 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) Type of financial instrument Expiration date Exercise/conversion period Physical or cash settlement Number of voting rights % of voting rights Sub Total 8.B2 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) Ultimate controlling person Name of controlled undertaking % of voting rights if it equals or is higher than the notifiable threshold % of voting rights through financial instruments if it equals or is higher than the notifiable threshold Total of both if it equals or is higher than the notifiable threshold Cobas Asset Management, SGIIC, S.A. 9.062366 9.062366% 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 In reference to section 9, the shares detailed are managed by the named investment management entity within multiples portfolios on behalf of underlying clients, based on investment managements agreements whereby the client has delegated the exercise of voting rights to the investment manager. 12. Date of Completion 16-Dec-2025 13. Place Of Completion Madrid, Spain