MasTec — Jul 31, 2025 release

For the Year Ended December 31, 2024 For the Year Ended December 31, 2023 Diluted earnings (loss) per share $ 4.61 - 4.82 $ 2.06  $ (0.64) Adjustments: Non-cash stock-based compensation expense 0.44 0.41  0.43  Amortization of intangible assets 1.67 1.77  2.16  Loss on extinguishment of debt — 0.14  —  Changes in fair value of acquisition-related contingent items (0.02) 0.14  (0.18) Acquisition and integration costs — —  0.92  Losses on fair value of investment — —  0.00  Total adjustments, pre-tax $ 2.09 $ 2.47  $ 3.33  Income tax effect of adjustments (a) (0.47) (0.57) (0.94) Statutory and other tax rate effects (b) — (0.01) 0.06  Adjusted diluted earnings per share $ 6.23 - 6.44 $ 3.95  $ 1.81  (a) Represents the tax effects of the adjusted items that are subject to tax, including the tax effects of non-cash stock-based compensation expense, including from share-based payment awards. Tax effects are determined based on the tax treatment of the related item, the incremental statutory tax rate of the jurisdictions pertaining to the adjustment, and their effects on pre-tax income (loss). (b) Represents the effects of statutory and other tax rate changes for the years ended December 31, 2024 and 2023. Supplemental Disclosures and Reconciliation of Non-GAAP Disclosures (unaudited - in millions, except for percentages and per share information) EBITDA and Adjusted EBITDA Reconciliation Guidance for the Three Months Ended September 30, 2025 Est. For the Three Months Ended September 30, 2024 Net income $ 156 4.0% $ 105.4  3.2 % Interest expense, net 43 1.1% 47.0  1.4 % Provision for income taxes 51 1.3% 31.5  1.0 % Depreciation 77 2.0% 80.2  2.5 % Amortization of intangible assets 33 0.8% 34.4  1.1 % EBITDA $ 360 9.2% $ 298.6  9.2 % Non-cash stock-based compensation expense 10 0.2% 7.3  0.2 % Loss on extinguishment of debt — —  % —  —  % Changes in fair value of