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Your Vote Counts! CLEAN ENERGY FUELS CORP. 4675 MACARTHUR COURT, SUITE 800 NEWPORT BEACH, CA 92660 CLEAN ENERGY FUELS CORP. 2022 Annual Meeting Vote by May 18, 2022 11:59 PM ET You invested in CLEAN ENERGY FUELS CORP. 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 May 19, 2022. Vote Virtually at the Meeting* May 19, 2022 8:00 AM PDT Virtually at: www.virtualshareholdermeeting.com/CLNE2022 *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 # D73382-P67922 Get informed before you vote View the Annual Report and Notice and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 5, 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.


THIS IS NOT A VOTABLE BALLOT This 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. Vote at www.ProxyVote.com 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 D73383-P67922 01) Lizabeth Ardisana 02) Karine Boissy-Rousseau 03) Andrew J. Littlefair 04) James C. Miller III 05) Lorraine Paskett 06) Stephen A. Scully 07) Kenneth M. Socha 08) Vincent C. Taormina 09) Parker A. Weil 10) Laurent Wolffsheim 1. To elect ten directors to the Board of Directors Nominees: 2. To ratify the appointment of KPMG LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2022. 3. To approve, on an advisory, non-binding basis, the compensation of our named executive officers. 4. To approve our 2022 Employee Stock Purchase Plan (the “New ESPP”) and the reservation of 2,500,000 shares of our common stock for issuance under the New ESPP. NOTE: Such other business as may properly come before the meeting or any adjournment or postponement thereof. For All For For For