Your Vote Counts! ARCHER AVIATION INC. 1880 EMBARCADERO ROAD PALO ALTO, CA 94303 ARCHER AVIATION INC.2022 Annual MeetingVote by June 9, 202211:59 PM ET You invested in ARCHER AVIATION 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 theavailability of proxy material for the stockholder meeting to be held on June 10, 2022.Get informed before you voteView the Notice, Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) byrequesting prior to May 27, 2022. 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. Vote Virtually at the Meeting*June 10, 202211:00 AM PDT Virtually at: www.virtualshareholdermeeting.com/ACHR2022 *Please check the meeting materials for any special requirements for meeting attendance. Smartphone usersPoint your camera here and vote without entering a control number V1.1 For complete information and to vote, visit www.ProxyVote.comControl # D83362-P69677

Vote at www.ProxyVote.comTHIS IS NOT A VOTABLE BALLOTThis is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. Voting Items Board Recommends Election of DirectorsNominees:Deborah DiazFred Diaz For All 2. Approve the proposed Amended and Restated 2021 Equity Incentive Plan. For 3. Ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2022. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. D83363-P69677

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