Schedule 11

Antofagasta PLC 13 October 2005 SCHEDULE 11 NOTIFICATION OF INTERESTS OF DIRECTORS/PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY AND/OR CONNECTED PERSONS 1. Name of the issuer Antofagasta plc 2. State whether the notification relates to a: i. transaction notified in accordance with DR 3.1.4R(1)(a); or ii. DR 3.1.4(R)(1)(b) a disclosure made in accordance with section 324 (as extended by section 328) of the Companies Act 1985; or iii. Both (i) and (ii): Relates to iii 3. Name of person discharging managerial responsibilities/director Mr. Jean-Paul Luksic 4. State whether notification relates to a person connected with a person discharging managerial responsibilities/director named in 3 and identify the connected person Connected person, Mrs. Belinda James de Luksic (spouse of Mr. Jean-Paul Luksic) 5. Indicate whether the notification is in respect of a holding of the person referred to in 3 or 4 above or in respect of a non-beneficial interest In respect of a beneficial holding of 4 above 6. Description of shares (including class), debentures or derivatives or financial instruments relating to shares Ordinary Shares of 5 pence 7. Name of registered shareholder(s) and, if more than one, the number of shares held by each of them Merrill Lynch Pierce Fenner and Smith (Nominee A/c) 8. State the nature of the transactions Sale of ordinary shares 9. Number of shares, debentures or financial instruments relating to shares acquired N/A 10. Percentage of issued class acquired N/A 11. Number of shares, debentures or financial instruments relating to shares disposed 1,200 12. Percentage of issued class disposed Less than 0.001% 13. Price per share or value of transactions 1508p 14. Date and place of transactions 11 October 2005, London 15. Total holding following notification and total percentage holding following notification Nil 16. Date issuer informed of transactions 13 October 2005 If a person discharging managerial responsibilities has been granted options by the issuer complete the following boxes 17. Date of grant N/A 18. Period during which or date on which exercise can be exercised N/A 19. Total amount paid (if any) for grant of the option N/A 20. Description of shares or debentures involved (class and number) N/A 21. Exercise price (if fixed at time of grant) or indication that price is to be fixed at the time of exercise N/A 22. Total number of shares or debentures over which options held following notification N/A 23. Any additional information The ordinary shares which are the subject of the transaction notified above have inadvertently not been previously notified as part of any holding in which Mr Jean-Paul Luksic is interested. Following this transaction Mrs Belinda James de Luksic has no interests in ordinary shares of the Company. Name of contact and telephone number for queries Hussein Barma, 020 7808 0988 Name of duly authorised officer/official of issuer responsible for making notification Hussein Barma, Chief Financial Officer (UK) Date of notification 13 October 2005 END This information is provided by RNS The company news service from the London Stock Exchange

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Antofagasta (ANTO)
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