IONEER LTD — Director's Dealing 2025

Jul 1, 2025

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity IONEER LTD ABN 76 098 564 606

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Bernard Anthony Rowe
Date of last notice	6 November 2024

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct and indirect
Nature of indirect interest(including registered holder)Note: Provide details of the circumstances giving rise to the relevantinterest.	Mopti Pty Limited; Mopti Management PtyLimited. Each entity above is controlled byBernard Rowe.

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

Date of change		1 July 2025
No. of securities held prior to change		Mopti Pty Limited36,690,902fullypaidordinaryshares400,000 ADRs.1(Note: Each ADR accounts for 40 fully paidordinary shares. The ADRs are issued by TheBank of New York Mellon and the custodianis HSBC Bank Australia Limited).Mopti Management Pty Limited5,826,182 fully paid ordinary sharesBernard Anthony Rowe11,092,063fullypaidordinaryshares11,906,857 performance rights
Class		Issue of ordinary shares on vesting ofperformance rights and lapse of performancerights
Number acquired		4,517,759 fully paid ordinary shares
Number disposed		5,206,661 performance rights
Value/ConsiderationNote: If consideration is non-cash, provide details and estimated valuation		Nil, performance rights issued under theIoneer Employee Incentive Plan.
No. of securities held after change		Mopti Pty Limited36,690,902fullypaidordinaryshares400,000 ADRs.2(Note: Each ADR accounts for 40 fully paidordinary shares. The ADRs are issued by TheBank of New York Mellon and the custodianis HSBC Bank Australia Limited).Mopti Management Pty Limited5,826,182 fully paid ordinary sharesBernard Anthony Rowe15,609,822fullypaidordinaryshares6,700,196 performance rights

1 In addition to the change disclosed in this Notice, Mr Rowe advises that, in late June 2022, he (through his controlled entity, Mopti Pty Ltd) exchanged 16,000,000 ordinary shares for 400,000 ADRs. This change did not impact Mr Rowe's total notifiable interest for the purposes of the ASX Listing Rules.

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

	Nature of changeExample: on-market trade, off-market trade, exercise of options, issue ofsecurities under dividend reinvestment plan, participation in buy-back	Vesting of 4,517,759 performance rights andissue of 4,517,759 fully paid ordinary shares.Lapse of 688,902 performance rights.

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract Nature of interest Name of registered holder (if issued securities) Date of change No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed Interest acquired Interest disposed Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation Interest after change

Part 3 –[+] Closed period

Part 3 –+Closed period
Were the interests in the securities or contracts detailedabove traded during a+closed period where prior writtenclearance was required?	No
If so, was prior written clearance provided to allow the tradeto proceed during this period?	N/A
If prior written clearance was provided, on what date was thisprovided?	N/A

2 In addition to the change disclosed in this Notice, Mr Rowe advises that, in late June 2022, he (through his controlled entity, Mopti Pty Ltd) exchanged 16,000,000 ordinary shares for 400,000 ADRs. This change did not impact Mr Rowe's total notifiable interest for the purposes of the ASX Listing Rules.

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3