Company: MTZ
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042499
Chunk: 31

Company: MASTEC INC
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 31
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 of that series, voting as a single class, may declare immediately due and payable the principal amount or other amount as may be specified by the terms of those debt securities and any premium or make-whole amount on the debt securities of that series and any accrued and unpaid cash interest through the date of such declaration; provided, however, that, upon the occurrence and continuation of certain defaults related to bankruptcy or insolvency, the principal of, and the Make-Whole Amount, if any, on all the outstanding debt securities of that series and any accrued interest through the occurrence of such Event of Default, shall become due and payable immediately, without any declaration or other act by the Trustee or any other Holder. Notwithstanding the foregoing, if any debt securities of a series are Original Issue Discount Securities or Indexed Securities, the terms thereof may provide for the payment of a portion of the principal amount thereof in the case of an acceleration of payment as a result of an Event of Default. At any time after an acceleration with respect to debt securities of a series has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of not less than a majority in principal amount of the outstanding debt securities of that series may cancel the acceleration and annul its consequences if:

| • |     | we pay or deposit with the trustee all required payments of the principal of, and any premium, make-whole amount,                                  
 interest, and additional amounts on, the applicable series of debt securities, plus fees, expenses, disbursements and advances of the trustee; and |

| • |     | all events of default, other than the nonpayment of accelerated principal, premium, make-whole amount, or                                 
 interest, with respect to the applicable series of debt securities have been cured or waived as provided in the indentures (Section 502). |

The indentures also provide that the holders of not less than a majority in principal amount of the outstanding debt securities of any series may waive any past default with respect to that series and its consequences (except in respect of certain events of default related to bankruptcy or insolvency, the waiver of which requires approval of a majority in principal amount of all outstanding debt securities under the applicable indenture), except a default involving:

| • |     | our failure to pay the principal of, and any premium, make-whole amount, interest or additional amounts on, any 
 debt security; or                                                                                               |

| • |     | a covenant or provision contained in the applicable