Announcement PDF RNS Number : 1754X Great Southern Copper PLC 18 December 2023 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB00BLB5BF24 Issuer Name GREAT SOUTHERN COPPER PLC UK or Non-UK Issuer UK 2. Reason for Notification Other 3. Details of person subject to the notification obligation Name Gervaise Heddle City of registered office (if applicable) Sydney Country of registered office (if applicable) Australia 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above Gervaise Heddle City of registered office (if applicable) Sydney Country of registered office (if applicable) Australia 5. Date on which the threshold was crossed or reached 14-December-2023 6. Date on which Issuer notified 14-December-2023 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 2.50% 2.50% 8,583,335 Position of previous notification (if applicable) 3.36% 3.36% 8,583,335 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares Number of direct Class/Type of shares voting rights ISIN code(if possible) (DTR5.1) GB00BLB5BF24 Number of indirect % of direct voting % of indirect voting voting rights (DTR5.2.1) rights (DTR5.1) rights (DTR5.2.1) 8,583,335 2.50% Sub Total 8.A 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 Physical or cash period settlement Number of voting rights % of voting rights Sub Total 8.B2 9. Information in relation to the person subject to the notification obligation 1. Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer. % of voting rights if Name of Ultimate controlling it equals or is controlled person higher than the undertaking notifiable threshold 10. In case of proxy voting % 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 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 12. Date of Completion 14-December-2023 13. Place Of Completion Sydney, Australia 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 HOLNKFBDNBDDBBD