MasTec, Inc. and MasTec North America, on June 26, 2025 entered into a new senior unsecured term loan agreement (the New Term Loan Agreement) by and among the Company and MasTec North America, as borrowers, Bank of America, N.A., as Administrative Agent, and the other lenders party thereto, which provides for a $600.0 million term loan (the New Term Loan Facility). Borrowings under the New Term Loan Facility are to be used to repay in full the aggregate principal amount of approximately $277.5 million of term loans outstanding under that certain Term Loan Agreement, dated as of September 1, 2022, by and among the Company and MasTec North America, as borrowers, Bank of America, N.A., as Administrative Agent, and the other lenders party thereto, and for general corporate purposes. The New Term Loan Facility will mature on the three year anniversary of the closing date, and loans thereunder are not subject to amortization.

Outstanding loans under the New Term Loan Facility bear interest, at the Company?s option, at a rate equal to either (a) Term SOFR, as defined in the New Term Loan Agreement, plus a margin of 1.00% to 1.50%, or (b) Base Rate (defined below), plus a margin of 0.00% to 0.50%. The Base Rate equals the highest of (i) the Federal Funds Rate, as defined in the New Term Loan Agreement, plus 0.50%, (ii) Bank of America?s prime rate, and (iii) Term SOFR plus 1.00%. In each of the foregoing cases, the applicable margin is based on the Company?s Consolidated Leverage Ratio and Debt Rating, each as defined in the New Term Loan Agreement, as of the most recent fiscal quarter.