Type	Name	Date
Credit agreement	CREDIT AGREEMENT	08/17/2021
Underwriting agreement	UNDERWRITING AGREEMENT	07/30/2021
Underwriting agreement	UNDERWRITING AGREEMENT	02/04/2021
Securities purchase agreement	Purchase Agreement, by and among IEA Energy Services LLC, William Charles Construction Group and the owners thereof	10/15/2018
Credit agreement	Credit Agreement, among Infrastructure and Energy Alternatives, Inc., as a Guarantor thereunder, IEA Intermediate Holdco, LLC as Guarantor thereunder, IEA Energy Services LLC, as the Borrower, the subsidiary guarantors party thereto, Jefferies Finance LLC, as Administrative Agent and Collateral Agent, and KeyBank National Association, as Revolving Agent	09/26/2018
Credit agreement	Credit Agreement, among Wind Merger Sub I, Inc., as the Initial Borrower, IEA Energy Services LLC, as the Borrower, the Guarantors party thereto, Bank of America, N.A., as Administrative Agent, Swingline Lender and L/C Issuer, and the other Lenders party thereto	03/29/2018

Type	Name	Date
Equity incentive plans	Infrastructure and Energy Alternatives, Inc. 2018 Equity Incentive Plan	03/29/2018

Type	Name	Date
Merger agreement	AGREEMENT AND PLAN OF MERGER among MASTEC, INC. Indigo Acquisition I Corp. and Infrastructure and Energy Alternatives, Inc.	07/25/2022

Type	Name	Date
Lease agreement	Lease Agreement between White Construction, Inc. and Clinton RE Holdings (Delaware) LLC	03/29/2018