TPI Composites (TPIC) DEFA14A Additional proxy soliciting materials

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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☐	Definitive Proxy Statement
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☐	Soliciting Material Pursuant to §240.14a-12

TPI Composites, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Your Vote Counts! TPI COMPOSITES, INC. 2021 Annual Meeting Vote by May 17, 2021 11:59 PM ET TPI COMPOSITES, INC. 8501 N. SCOTISDALE ROAD GAINEY CENTER II, SUITE 100 SCOTISDALE, AZ 85253 You invested in TPI COMPOSITES, 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 stockholder meeting to be held on May 18, 2021. Get informed before you vote View the Notice & Proxy Statement, Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 04, 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. For complete information and to vote, visit www.Proxyvote.com control # Smartphone users Point your camera here and vote without entering a Control number Vote Virtually at the Meeting* May 18, 2021 1:00 PM LST Virtually at: www.virtualshareholdermeeting.com/TPIC2021 *Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com 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. Voting Items Board Recommends 1. Election of Directors Nominees: 01) Paul G. Giovacchini 02) Jayshree S. Desai 03) Linda P. Hudson 04) Bavan M. Holloway For 2. To ratify the appointment of KPMG LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2021. For 3. To consider and act upon a non-binding advisory vote on the compensation of our named executive officers. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”.