Antofagasta PLC — AGM Information 2022

Apr 1, 2022

Please detach this portion before posting this proxy form.

Form of Proxy for Ordinary Shareholders - Annual General Meeting to be held on 11 May 2022

ADDITIONAL HOLDER 4

Ordinary Resolutions 1.	To receive the accounts and the reports of the Directors and of the auditors for the year ended 31 December 2021.	For	Vote Against Withheld	11. To re-elect Francisca Castro as a Director.		For	Against Withheld	Vote
2.	To approve the Directors' and CEO Remuneration Report for the year ended 31 December 2021.			12. To re-elect Michael Anglin as a Director.
3.	To declare a fi nal dividend.			13. To re-elect Eugenia Parot as a Director.
4.	To re-elect Jean-Paul Luksic as a Director.				14. To re-appoint PricewaterhouseCoopers LLP as auditors of the Company to hold offi ce from the conclusion of this meeting until the
5.	To re-elect Tony Jensen as a Director.			laid before the Company.	conclusion of the next general meeting at which the accounts are 15. To authorise the Audit and Risk Committee for and on behalf of the
6.	To re-elect Ramón Jara as a Director.			Board to fi x the remuneration of the auditors. 16. To grant authority to the Directors to allot securities.
7.	To re-elect Juan Claro as a Director.			Special Resolutions	17. To grant power to the Directors to allot securities other than on a
8.	To re-elect Andrónico Luksic as a Director.			pro rata basis to shareholders for cash.	18. To grant power to the Directors to allot securities other than on
9.	To re-elect Vivianne Blanlot as a Director.			acquisition or a specifi ed capital investment.	a pro rata basis to shareholders for cash for the purposes of an 19. To grant the Company authority to make market purchases of
	10. To re-elect Jorge Bande as a Director.			ordinary shares. general meetings) on not less than 14 days' notice.	20. To permit the Company to call general meetings (other than annual
Please leave this box blank if you want to select the Chairman. Do not insert your own name(s).					C1234567890
	I/We hereby appoint the Chairman of the Meeting OR the person indicated in the box above as my/our proxy to attend, speak and vote in respect of my/our full voting entitlement* on my/our behalf at the Annual General Meeting of ANTOFAGASTA PLC to be held as a hybrid meeting at Church House Westminster, Dean's Yard,
	London SW1P 3NZ and electronically by live broadcast using the Lumi platform on 11 May 2022 at 2.00 pm, and at any adjourned meeting.
	* For the appointment of more than one proxy, please refer to Explanatory Note 2 (see front). Please mark here to indicate that this proxy appointment is one of multiple appointments being made.				Please use a black pen. Mark with an X inside the box as shown in this example.
	Ordinary Resolutions To receive the accounts and the reports of the Directors and of the auditors for the year ended 31	For	Vote Against Withheld	12. To re-elect Michael Anglin as a Director.		For	Against Withheld
	December 2021. To approve the Directors' and CEO Remuneration Report for the year ended 31 December 2021.			13. To re-elect Eugenia Parot as a Director.
	To declare a fi nal dividend.			14. To re-appoint PricewaterhouseCoopers LLP as auditors of the Company to hold offi ce from the
	To re-elect Jean-Paul Luksic as a Director.				conclusion of this meeting until the conclusion of the next general meeting at which the accounts are laid
	To re-elect Tony Jensen as a Director.			before the Company.	15. To authorise the Audit and Risk Committee for and on behalf of the Board to fi x the remuneration of the
	To re-elect Ramón Jara as a Director.			auditors.	16. To grant authority to the Directors to allot securities.
	To re-elect Juan Claro as a Director.			Special Resolutions	17. To grant power to the Directors to allot securities other
	To re-elect Andrónico Luksic as a Director.				than on a pro rata basis to shareholders for cash. 18. To grant power to the Directors to allot securities other
				investment.	than on a pro rata basis to shareholders for cash for the purposes of an acquisition or a specifi ed capital
	To re-elect Vivianne Blanlot as a Director.			19. To grant the Company authority to make market purchases of ordinary shares.
1. 2. 3. 4. 5. 6. 7. 8. 9.	10. To re-elect Jorge Bande as a Director.				20. To permit the Company to call general meetings (other than annual general meetings) on not less than 14			X Vote

I/We instruct my/our proxy as indicated on this form. Unless otherwise instructed the proxy may vote as he or she sees fit or abstain in relation to any business of the meeting. Signature Date

In the case of a corporation, this proxy must be given under its common seal or be signed on its behalf by an attorney or offi cer duly authorised, stating their capacity (e.g. director, secretary).

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