Your Vote Counts! COMPUTERSHARE PO BOX 43078 PROVIDENCE, RI 02940-3078 IRIS ENERGY LIMITED 2023 Annual Meeting Vote by November 28, 2023 11:59 PM U.S. Eastern Time/ November 29, 2023 3:59 PM Australian Eastern Time You invested in IRIS ENERGY LIMITED and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on November 29, 2023 at 3:30 p.m. U.S. Eastern Time/ November 30, 2023 at 7:30 a.m. Australian Eastern Time. Get informed before you vote View the Notice of 2023 Annual General Meeting and Explanatory Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to November 16, 2023. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. *Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number V1.1 For complete information and to vote, visit www.ProxyVote.com Control # V24410-P99087 Virtually at: www.virtualshareholdermeeting.com/IREN2023 Vote Virtually at the Meeting* November 29, 2023 3:30 p.m. U.S. Eastern Time/ November 30, 2023 7:30 am Australian Eastern Time
