X0607 3 2026-03-18 0 0001896084 ioneer Ltd IONR 0002122348 Rowe Benard false C/O ioneer Ltd 9460 Double R. Blvd, Suite 200 Reno NV 85921 true Ordinary Shares 20289111 D Ordinary Shares 36690902 I By Mopti Pty Limited Ordinary Shares 5826182 I By Mopti Management Pty Limited American Depositary Shares Ordinary Shares 16000000 I By Mopti Pty Limited The reported Ordinary Shares are held by Mopti Pty Limited, a private company of which the reporting person is the sole director. The reported Ordinary Shares are held by Mopti Management Pty Limited, a private company of which the reporting person is the sole director. Each American Depositary Share is convertible at any time, at the holder's election, into 40 ordinary shares of the issuer. The American Depositary Shares have no expiration date. Represented by 400,000 American Depositary Shares. The reported American Depositary Shares are held by Mopti Pty Limited, a private company of which the reporting person is the sole director. /s/ Benard Rowe 2026-03-18