Company: MTZ
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042499
Chunk: 30

Company: MASTEC INC
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 30
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 contained in the applicable indenture, other than a                                                                                                                                         
 covenant or warranty otherwise provided for in the applicable indenture, and our breach or failure to perform continues for 60 days after we have received written notice in accordance with the applicable indenture of our breach or failure to 
 perform;                                                                                                                                                                                                                                          |

| • |     | we default under a bond, debenture, note, mortgage, indenture or instrument securing or evidencing indebtedness                                                                                                                                        
 for money borrowed by us, or by any subsidiaries of ours that we have guaranteed or for which we are directly responsible or liable as obligor or guarantor, that has a principal amount outstanding in excess of $20,000,000, other than indebtedness 
 which is non-recourse to us or our subsidiaries, which default has caused the indebtedness to become due and payable earlier than it would otherwise have become due and payable, and the indebtedness has not                                         
 been discharged or the acceleration has not been rescinded or annulled, within 30 days after written notice was provided to us in accordance with the applicable indenture;                                                                            |

| • |     | a court of competent jurisdiction enters one or more judgments, orders or decrees against us or any of our                                                                                                                                              
 subsidiaries in an aggregate amount (excluding amounts covered by insurance) in excess of $20,000,000, which remain(s) undischarged, unstayed, and unsatisfied in an aggregate amount (excluding amounts covered by insurance) in excess of $20,000,000 
 for 60 consecutive days;                                                                                                                                                                                                                                |

22

| • |     | the bankruptcy, insolvency or reorganization or court appointment of a receiver, liquidator, trustee, assignee,                                                                                                                                         
 or other similar official for us or any of our Significant Subsidiaries, or for all or substantially all of our properties or the properties of our Significant Subsidiaries or the general assignment by us or any of our Significant Subsidiaries for 
 the benefit of our or their creditors or an order for the liquidation of MasTec, Inc. or any of our Significant Subsidiaries which remains unstayed and in effect for 90 days; and                                                                      |

| • |     | any other event of default described in the applicable prospectus supplement and indenture (Section 501). |

If there is a continuing event of default with respect to outstanding debt securities of a series, then the trustee or the holders of not less than 25% in aggregate principal amount of the outstanding debt securities