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 Exhibit 99.3​
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Your Vote Counts!IHS HOLDING LIMITED1 CATHEDRAL PIAZZA123 VICTORIA STREETLONDON, SW1E 5BP UNITED KINGDOMIHS HOLDING LIMITED2025 Annual General MeetingVote by July 9, 202511:59 PM ETVote V75555-P32933 V75555-P32933You invested in IHS HOLDING LIMITED and it’s time to vote!You have the right to vote on proposals being presented at the Annual General Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on July 10, 2025.Get informed before you voteView the Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to June 26, 2025. 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 RegistrationTo vote and/or attend the meeting, go to the “Attend a Meeting” link at www.ProxyVote.com. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone usersPoint your camera here and vote without entering a control number ETVote in Person at the Meeting*July 10, 20251:00 PM London TimeThe offices of Latham & Watkins LLP99 Bishopsgate LondonEC2M 3XF, United Kingdom*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.
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Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOTThis 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. Voting Items Board Recommends 1. To elect Frank Dangeard and Phuthuma Nhleko to serve as Class I Directors, John Ellis Bush, Mallam Bashir Ahmad El-Rufai and Nicholas Land to serve as Class II Directors, and Sam Darwish, Ursula Burns, Maria Carolina Lacerda and Aniko Szigetvari to serve as Class III Directors, in each case until the Company’s annual general meeting to be held for the year ending December 31, 2026, or until their earlier death, resignation, disqualification or removal. Nominees: 1a. Frank Dangeard For 1b. Phuthuma Nhleko For 1c. John Ellis Bush For 1d. Mallam Bashir Ahmad El-Rufai For 1e. Nicholas Land For 1f. Sam Darwish For 1g. Ursula Burns For 1h. Maria Carolina Lacerda For 1i. Aniko Szigetvari For Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V75556-P32933