Business
TR-1: Notification of major holdings
On September 22, 2025, Antofagasta PLC announced that Royal Bank of Canada PH, specifically RBC Global Asset Management Inc., crossed a threshold related to voting rights. The notification, triggered on September 17, 2025, reveals that RBC GAM now holds 3.127220% of the voting rights attached to shares, totaling 37,084,344. This is an increase from the previously notified position of 2.976000%. The voting rights are held directly, with 0.000000% held through financial instruments. The full chain of controlled undertakings shows Royal Bank of Canada ultimately controlling 3.127220% through Royal Bank Holding Inc., Capital Funding Alberta Limited and RBC Global Asset Management Inc. Disclaimer*
About this update from Antofagasta Plc
RELEASE, 22 SEPTEMBER 2025 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GB0000456144 Issuer Name ANTOFAGASTA 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 Royal Bank of Canada PH City of registered office (if applicable) Country of registered office (if applicable) CA 4. Details of the shareholder Name City of registered office Country of registered office RBC Global Asset Management Inc. ("RBC GAM") Toronto Canada 5. Date on which the threshold was crossed or reached 17-Sep-2025 6. Date on which Issuer notified 19-Sep-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 3.127220 0.000000 3.127220 37084344 Position of previous notification (if applicable) 2.976000 0.000000 2.976000 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) GB0000456144 37084344 0 3.127220 0.000000 Sub Total 8.A 37084344 3.127220% 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 Royal Bank of Canada (chain 1) Royal Bank Holding Inc. 3.127220 0.000000 3.127220% Royal Bank of Canada (chain 1) Capital Funding Alberta Limited 3.127220 0.000000 3.127220% Royal Bank of Canada (chain 1) RBC Global Asset Management Inc. ("RBC GAM") 3.127220 0.000000 3.127220% 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 12. Date of Completion 19-Sep-2025 13. Place Of Completion Toronto, Ontario, Canada