Huntington Ingalls Industries — Jul 31, 2025 release

• Newport News, VA 23607 www.HII.com Page 4 of 12 HII Financial Outlook 1 •    Reaffirming FY25 segment revenue and operating margin guidance • FY25 shipbuilding revenue between $8.9 and $9.1 billion; expect shipbuilding operating margin 2 between 5.5% and 6.5% • FY25 Mission Technologies revenue between $2.9 to $3.1 billion, Mission Technologies segment operating margin between 4.0% and 4.5%; and Mission Technologies EBITDA margin 2 between 8.0% and 8.5% •      Increasing FY25 free cash flow 2 guidance to between $500 and $600 million FY25 Outlook 1 Shipbuilding Revenue $8.9B - $9.1B Shipbuilding Operating Margin 2 5.5% - 6.5% Mission Technologies Revenue $2.9B - $3.1B Mission Technologies Segment Operating Margin 4.0% - 4.5% Mission Technologies EBITDA Margin 2 8.0% - 8.5% Operating FAS/CAS Adjustment ($40M) Non-current State Income Tax Expense 3 ($15M) Interest Expense ($110M) Non-operating Retirement Benefit $191M Effective Tax Rate ~21% Depreciation & Amortization ~$340M Capital Expenditures ~4% of Sales Free Cash Flow 2 $500M - $600M 1 The financial outlook, expectations and other forward-looking statements provided by the company for 2025 and beyond reflect the company's judgment based on the information available at the time of this release. Please see the "Forward-looking Statements" section in this release and our Form 10-Q for factors that may impact the company's ability to meet expectations. 2 Non-GAAP measures. See Exhibit B for definitions. In reliance upon Item 10(e)(1)(i)(B) of Regulation S-K, reconciliations of forward–looking GAAP and non–GAAP measures are not provided because of the unreasonable effort associated with providing such reconciliations due to the variability in the occurrence and the amounts of certain components of GAAP and non-GAAP measures. For the same reasons, we are unable to address the significance of the unavailable information, which could be material to future results. 3 Outlook is based on current tax law. Variability exists based on how and when individual states conform to recent federal tax law changes. About HII HII is a global, all-domain defense provider. HII’s missio