Your Vote Counts! *Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V30739-P05196-Z86911 MATSON, INC. 1411 SAND ISLAND PARKWAY HONOLULU, HI 96819 MATSON, INC. 2024 Annual Meeting Vote by April 24, 2024 11:59 PM ET. For shares held in a Plan, vote by April 22, 2024 11:59 PM ET. You invested in MATSON, INC. 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 shareholder meeting to be held on April 25, 2024. Get informed before you vote View the Notice of Meeting and Proxy Statement, Annual Report and Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 11, 2024. If you would like to request a copy of the material(s) for this and/or future shareholder 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. Shareholder Meeting Registration: To register to attend the meeting, go to “Register for Meeting” at www.proxyvote.com. Please refer to the proxy statement for additional information regarding admission procedures. Vote in Person at the Meeting* April 25, 2024 8:30 AM, HST 1411 Sand Island Parkway Honolulu, Hawaii

THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V30740-P05196-Z86911 Voting Items Board Recommends 1. Election of Directors For Nominees: 01) Meredith J. Ching 02) Matthew J. Cox 03) Mark H. Fukunaga 04) Stanley M. Kuriyama 05) Constance H. Lau 06) Bradley D. Tilden 07) Jenai S. Wall 2. Advisory vote to approve executive compensation. For 3. To ratify the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2024. For NOTE: In their discretion, the proxies are authorized to vote upon such other matters as may properly be brought before the meeting or any adjournment or postponement thereof.