UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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FLUOR CORPORATION
(Name of Registrant as Specified In Its Charter)
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Your Vote Counts! FLUOR CORPORATION 6700 LAS COLINAS BLVD. IRVING, TX 75039 FLUOR CORPORATION 2021 Annual Meeting Vote by May 5, 2021 11:59 PM EDT. For shares held in a Plan, vote by May 4, 2021 5:59 PM EDT. You invested in FLUOR CORPORATION 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 6, 2021. Get informed before you vote View the Annual Report and Notice & Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 22, 2021. 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* May 6, 2021 8:30 AM CDT Virtually at: www.virtualshareholdermeeting.com/FLR2021 *Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. 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 For complete information and to vote, visit www.ProxyVote.com Control # D36409-P51080-Z79290

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 D36410-P51080-Z79290 1. Election of Directors Nominees: 2. An advisory vote to approve the company’s executive compensation. 3. The ratification of the appointment by our Audit Committee of Ernst & Young LLP as independent registered public accounting firm for the fiscal year ending December 31, 2021. Such other business as may properly come before the meeting or any adjournment thereof. For For For For For For For For For For For For C. Alan L. Boeckmann A. Alan M. Bennett D. David E. Constable B. Rosemary T. Berkery E. H. Paulett Eberhart F. James T. Hackett G. Thomas C. Leppert H. Teri P. McClure I. Armando J. Olivera J. Matthew K. Rose