Huntington Ingalls Industries — Oct 30, 2025 release

• Newport News, VA 23607 www.HII.com Page 3 of 11 HII Financial Outlook 1 •    FY25 shipbuilding revenue between $9.0 and $9.1 billion; expect shipbuilding operating margin 2 between 5.5% and 6.5% • FY25 Mission Technologies revenue between $3.0 to $3.1 billion, Mission Technologies segment operating margin of approximately 4.5%; and Mission Technologies EBITDA margin 2 between 8.0% and 8.5% •    Increasing FY25 free cash flow 2 guidance to between $550 and $650 million • Cumulative FY25 & FY26 free cash flow 2 target of $1.2B Prior FY25 Outlook 1 Current FY25 Outlook 1 Shipbuilding Revenue $8.9B - $9.1B $9.0B - $9.1B Shipbuilding Operating Margin 2 5.5% - 6.5% 5.5% - 6.5% Mission Technologies Revenue $2.9B - $3.1B $3.0B - $3.1B Mission Technologies Segment Operating Margin 4.0% - 4.5% ~4.5% Mission Technologies EBITDA Margin 2 8.0% - 8.5% 8.0% - 8.5% Operating FAS/CAS Adjustment ($40M) ($35M) Non-current State Income Tax Expense 3 ($15M) ($15M) Interest Expense ($110M) ($110M) Non-operating Retirement Benefit $191M $191M Effective Tax Rate ~21% ~22% Depreciation & Amortization ~$340M ~$340M Capital Expenditures ~4% of Sales ~4% of Sales Free Cash Flow 2 $500M - $600M $550M - $650M 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 t