This Warrant, the Commitment Agreement and the Registration Rights Agreement dated as of March 26, 2018 by and among the Company, IEA Parent, M III Sponsor I LLC and M III Sponsor I LP, Cantor Fitzgerald & Co., Mr. Osbert Hood and Mr. Philip Marber, as amended, constitute the sole and entire agreement of the parties to this Warrant with respect to the subject matter contained herein, and supersedes all prior and contemporaneous understandings and agreements, both written and oral, with respect to such subject matter. In the event of any inconsistency between the provisions contained in this Warrant and the Commitment Agreement, the provisions contained in this Warrant shall control.