Announcement PDF RNS Number : 9929P East Star Resources PLC 07 July 2025 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00BN92HZ16 Issuer Name EAST STAR RESOURCES 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 First Equity Limited City of registered office (if applicable) London Country of registered office (if applicable) United Kingdom Name City of registered office Country of registered office Douglas Isle of Man Estate of William Black Armstrong Investments Limited 4. Details of the shareholder Name City of registered office Country of registered office Nortrust Nominees Limited London United Kingdom 5. Date on which the threshold was crossed or reached 04-Jul-2025 6. Date on which Issuer notified 04-Jul-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 Total of both in % (8.A + 8.B) Total number of voting rights held in issuer instruments (total of 8.B 1 + 8.B 2) Resulting situation on the date on which threshold was crossed or reached 2.469776 0.000000 2.469776 Position of previous notification (if applicable) 3.031089 0.000000 3.031089 11000000 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) GB00BN92HZ16 11000000 Sub Total 8.A 11000000 Number of indirect voting rights (DTR5.2.1) % of direct voting rights (DTR5.1) % of indirect voting rights (DTR5.2.1) 2.469776 0.000000 0 2.469776% 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 Expiration instrument 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 Estate of William Black Armstrong Investments Limited Estate of William Black First Equity Limited as Investment Manager of Armstrong Inv Limited 10. In case of proxy voting Name of the proxy holder % of voting rights if it equals or is higher than the notifiable threshold 2.469776 % 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 2.469776% The number and % of voting rights held The date until which the voting rights will be held 11. Additional Information 12. Date of Completion 04-Jul-2025 13. Place Of Completion London This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com. RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END HOLRRMPTMTTMMLA