Huntington Ingalls Industries — Oct 31, 2024 release

Exhibit 99.1 News Release Contacts: Brooke Hart (Media)         brooke.hart@hii-co.com 202-264-7108          Christie Thomas (Investors) christie.thomas@hii-co.com 757-380-2104             HII Reports Third Quarter 2024 Results and Provides Updated Outlook NEWPORT NEWS, Va. (October 31, 2024) - HII (NYSE: HII) today reported results for the third quarter of fiscal 2024 and provided an update on its outlook. Highlights • Third quarter revenues were $2.7 billion • Third quarter net earnings were $101 million or $2.56 diluted earnings per share • Third quarter free cash flow 1 was $136 million • Company is providing updated fiscal 2024 outlook • Company is withdrawing 5-year free cash flow 1 outlook Third Quarter Results Third quarter 2024 revenues of $2.7 billion were down 2.4% from the third quarter of 2023, driven by lower volume at Ingalls Shipbuilding and Newport News Shipbuilding, partially offset by growth at Mission Technologies. Operating income in the third quarter of 2024 was $82 million and operating margin was 3.0%, compared to $172 million and 6.1%, respectively, in the third quarter of 2023. The decreases were primarily driven by lower segment operating income 1 compared to the prior year. Segment operating income 1 in the third quarter of 2024 was $97 million and segment operating margin 1 was 3.5%, compared to $187 million and 6.6%, respectively, in the third quarter of 2023. The decreases were driven primarily by performance at Newport News Shipbuilding, which included a net unfavorable cumulative adjustment of $78 million, as well as lower performance at Ingalls Shipbuilding. Net earnings in the quarter were $101 million, compared to $148 million in the third quarter of 2023. Diluted earnings per share in the quarter was $2.56, compared to $3.70 in the third quarter of 2023. Net cash provided by operating activities in the quarter was $213 million and free cash flow 1 was $136 million, compared to net cash provided by operating activities of $335 million and free cash flow 1 of $293 million in the third quarter of 2023. New contract awards in the third quarter of 2024 were $3.6 billion, bringing total backlog to approximately $49.4 billion as of September 30, 2024. Awards in the third quarter of 2024 included approximately $565 million related to the multi-ship amphibious award at Ingalls Shipbuilding. 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 1 of 14 Exhibit 99.1 News Release Commentary on Third Quarter Results “Two issues have impacted our results and guidance for the year," said Chris Kastner, HII’s president and CEO. "First, based on constructive discussions with our Navy partner, we expected to reach an agreement for Virginia -class Block V and Block VI and Columbia -class submarines in the second half of 2024. "Starting this fall, some uncertainty emerged about the timing of that agreement. While we are confident an agreement will be reached and discussions continue, we have updated our profitability and cash flow assumptions based on the uncertain timing and structure of the award. "We continue to pursue innovative contracting approaches that incentivize greater investments in our workforce, facilities and technology. These investments are critical to yield accelerated program schedules that meet the urgent needs of the Navy. "Second, our assumptions of performance improvement and risk reduction have not been achieved, due to late critical material deliveries from the supply chain and reduced experience levels within our teams, both in production touch labor and supervision. This leads to labor inefficiency, and in some cases to rework, which can affect program schedules. "It bears repeating that nearly all of the ships currently under construction were negotiated prior to COVID, and since those contracts were signed we have seen a significant loss of shipbuilding experience in our yards. Those ship contracts, which we are still operating under at Newport News, did not anticipate in their cost targets and risk limiting clauses the significant disruption of our workforce and supply chain, or extended periods of heightened cost inflation. “Let me be clear: delays and cost increases on these ships are unacceptable to me, my team, and all of us at HII. Looking ahead, we continue to take decisive actions to focus on the fundamentals of shipbuilding to ensure that we finish these ships, get them delivered to the Navy, and transition to ships negotiated in the context of our current economic reality. "To summarize, we remain focused on optimizing our operations, improving our cost structure and shipbuilding performance, and driving higher throughput. We firmly believe the actions we are taking will enable us to stabilize performance as we continue to work through these ship contracts." HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 2 of 14 Exhibit 99.1 News Release HII Financial Outlook 1 • FY24 shipbuilding revenue 2 expected to be approximately $8.8B • FY24 shipbuilding operating margin 2 expected to be between 5.0% and 6.0% • Increasing FY24 Mission Technologies expected revenue range to between $2.8B and $2.85B • Increasing FY24 Mission Technologies expected operating margin 2 to approximately 3.75% • Capital expenditures expected to be approximately 3.4% of sales • FY24 free cash flow 2,3 expected to be between $0M and $100M • Withdrawing previous five-year (2024-2028) free cash flow 2 outlook Prior FY24 Outlook 1 Current FY24 Outlook 1 Shipbuilding Revenue 2 $8.8B - $9.1B ~$8.8B Shipbuilding Operating Margin 2 7.6% - 7.8% 5.0% - 6.0% Mission Technologies Revenue $2.75B - $2.8B $2.8B - $2.85B Mission Technologies Segment Operating Margin 2 3.0% - 3.5% ~3.75% Mission Technologies EBITDA Margin 2 8.0% - 8.5% 8.0% - 8.5% Operating FAS/CAS Adjustment ($63M) ($61M) Non-current State Income Tax Benefit/Expense 2,4 ~$0M ~$0M Interest Expense ($95M) ($97M) Non-operating Retirement Benefit $178M $180M Effective Tax Rate ~21% ~17% Depreciation & Amortization ~$350M ~$350M Capital Expenditures ~5.3% of Sales ~3.4% of Sales Free Cash Flow 2,3 $600M - $700M $0M - $100M 1 The financial outlook, expectations and other forward-looking statements provided by the company for 2024 and beyond reflect the company's judgment based on the information available at the time of this release. 2 Non-GAAP measures. See Exhibit B for definitions. In reliance upon Item 10(e)(1)(i)(B) of Regulation S-K, reconciliations of forward–looking GAAP and non–GAAP measures are not provided because of the unreasonable effort associated with providing such reconciliations due to the variability in the occurrence and the amounts of certain components of GAAP and non-GAAP measures. For the same reasons, we are unable to address the significance of the unavailable information, which could be material to future results. 3 Outlook is based on current tax law and assumes the provisions requiring capitalization of R&D expenditures for tax purposes are not deferred or repealed. 4 Outlook is based on current tax law. Repeal or deferral of provisions requiring capitalization of R&D expenditures would result in elevated non-current state income tax expense. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 3 of 14 Results of Operations Three Months Ended Nine Months Ended September 30 September 30 ($ in millions, except per share amounts) 2024 2023 $ Change % Change 2024 2023 $ Change % Change Sales and service revenues $ 2,749   $ 2,816  $ (67) (2.4) % $ 8,531   $ 8,277  $ 254  3.1  % Operating income 82   172  (90) (52.3) % 425   469  (44) (9.4) %   Operating margin % 3.0   % 6.1  % (313) bps 5.0   % 5.7  % (68) bps Segment operating income 1 97   187  (90) (48.1) % 470   512  (42) (8.2) %   Segment operating margin % 1 3.5   % 6.6  % (311) bps 5.5   % 6.2  % (68) bps Net earnings 101   148  (47) (31.8) % 427   407  20  4.9  % Diluted earnings per share $ 2.56   $ 3.70  $ (1.14) (30.8) % $ 10.81   $ 10.18  $ 0.63  6.2  % 1 Non-GAAP measures that exclude non-segment factors affecting operating income. See Exhibit B for definitions and reconciliations. Segment Operating Results Ingalls Shipbuilding Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 $ Change % Change 2024 2023 $ Change % Change Revenues $ 664   $ 711  $ (47) (6.6) % $ 2,031   $ 1,952  $ 79  4.0  % Segment operating income 1 49   73  (24) (32.9) % 165   193  (28) (14.5) % Segment operating margin % 1 7.4   % 10.3  % (289) bps 8.1   % 9.9  % (176) bps 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations. Ingalls Shipbuilding revenues for the third quarter of 2024 were $664 million, a decrease of $47 million, or 6.6%, from the same period in 2023, primarily driven by lower volumes in amphibious assault ships and the Legend- class National Security Cutter program, partially offset by higher volumes in surface combatants. Ingalls Shipbuilding segment operating income 1 for the third quarter of 2024 was $49 million, a decrease of $24 million from the same period in 2023. Segment operating margin 1 in the third quarter of 2024 was 7.4%, compared to 10.3% in the same period last year. The decreases were primarily driven by lower performance on amphibious assault ships and surface combatants. Key Ingalls Shipbuilding milestones for the quarter: • Awarded a $9.6 billion multi-ship procurement contract for the construction of LPD 33, 34 and 35 and large-deck amphibious ship LHA 10 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 4 of 14 Newport News Shipbuilding Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 $ Change % Change 2024 2023 $ Change % Change Revenues $ 1,412   $ 1,453  $ (41) (2.8) % $ 4,381   $ 4,468  $ (87) (1.9) % Segment operating income 1 15   90  (75) (83.3) % 208   269  (61) (22.7) % Segment operating margin % 1 1.1   % 6.2  % (513) bps 4.7   % 6.0  % (127) bps 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations. Newport News Shipbuilding revenues for the third quarter of 2024 were $1.4 billion, a decrease of $41 million, or 2.8%, from the same period in 2023. The decrease was driven primarily by lower volumes in naval nuclear support services and unfavorable cumulative adjustments on the Virginia- class submarine program and aircraft carriers, partially offset by higher volumes in the Columbia -class submarine program. Newport News Shipbuilding segment operating income 1 for the third quarter of 2024 was $15 million, a decrease of $75 million from the same period in 2023. Segment operating margin 1 in the third quarter of 2024 was 1.1% compared to 6.2% in the same period last year. The decreases were primarily driven by lower performance on the Virginia -class submarine program and aircraft carriers. Newport News Shipbuilding third quarter 2024 results included a net unfavorable cumulative adjustment totaling $78 million, including $34 million on Block IV of the Virginia -class submarine program. Key Newport News Shipbuilding milestones for the quarter: • Shipped final module of Virginia -class submarine Utah (SSN 801) Mission Technologies Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 $ Change % Change 2024 2023 $ Change % Change Revenues $ 709   $ 685  $ 24  3.5  % $ 2,224   $ 1,954  $ 270  13.8  % Segment operating income 1 33   24  9  37.5  % 97   50  47  94.0  % Segment operating margin % 1 4.7   % 3.5  % 115 bps 4.4   % 2.6  % 180 bps 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations. Mission Technologies revenues for the third quarter of 2024 were $709 million, an increase of $24 million, or 3.5%, from the same period in 2023. The increase was primarily due to higher volumes in cyber, electronic warfare & space. Mission Technologies segment operating income 1 for the third quarter of 2024 was $33 million, compared to $24 million in the third quarter of 2023. Segment operating margin 1 in the third quarter of 2024 was 4.7%, compared to 3.5% in the same period last year. The increases were primarily driven by higher volumes described above and higher equity income from nuclear and environmental joint ventures. Mission Technologies results included approximately $25 million of amortization of purchased intangible assets in the third quarter of 2024, compared to approximately $27 million in the same period last year. Mission Technologies EBITDA margin 1 in the third quarter of 2024 was 8.9%, an increase from 8.2% in the third quarter of 2023. 1 Non-GAAP measures. See Exhibit B for definitions and reconciliations HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 5 of 14 Key Mission Technologies milestones for the quarter: • Awarded $6.7 billion contract to provide electronic warfare engineering and technical services support for the U.S. Air Force • Awarded $3 billion Federal Government task order for national security services and new and emerging technology • Awarded $458 million contract to modernize communications and information technology (IT) networks for the U.S. Department of Defense • Awarded $209 million contract to support U.S. Air Force weapons systems development and sustainment • Awarded $197 million contract to research and develop technology enhancements for U.S. Army ground combat vehicles • Awarded $75 million task order to provide systems engineering support for integrated training systems used onboard ships to enhance combat preparedness for sailors • Awarded task order to support U.S. Air Force sustainment of special-purpose aircraft • Delivered advanced REMUS 620 UUVs to NOAA less than 24 months after unveiling • Awarded five-year contract to provide global supply chain services to the Australian Government’s Department of Defence • Achieved funded book-to-bill of 2.2x in the third quarter and 1.3x year to date HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 6 of 14 About HII HII is a global, all-domain defense provider. HII’s mission is to deliver the world’s most powerful ships and all-domain solutions in service of the nation, creating the advantage for our customers to protect peace and freedom around the world. As the nation’s largest military shipbuilder, and with a more than 135-year history of advancing U.S. national security, HII delivers critical capabilities extending from ships to unmanned systems, cyber, ISR, AI/ML and synthetic training. Headquartered in Virginia, HII’s workforce is 44,000 strong. For more information, please visit www.HII.com. Conference Call Information HII will webcast its earnings conference call at 9 a.m. Eastern time today. A live audio broadcast of the conference call and supplemental presentation will be available on the investor relations page of the company’s website: www.HII.com. A telephone replay of the conference call will be available from noon today through Thursday, November 7th by calling (866) 813-9403 or (929) 458-6194 and using access code 916957. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 7 of 14 Cautionary Statement Regarding Forward-Looking Statements and Projections Statements in this earnings release, other than statements of historical fact, constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, you can identify forward-looking statements by words such as "may," "will," "should," "expects," "intends," "plans," "anticipates," "believes," "estimates," "predicts," "potential," "continue," “guidance,” “projections,” “outlook,” and similar words or phrases or the negative of these words or phrases. These statements relate to future events or our future financial performance and involve known and unknown risks, uncertainties, and other factors that may cause our actual results, levels of activity, performance, or achievements to be materially different from any future results, levels of activity, performance, or achievements expressed or implied by these forward-looking statements. Although we believe the expectations reflected in the forward-looking statements are reasonable when made, we cannot guarantee future results, levels of activity, performance, or achievements. There are a number of important factors that could cause our actual results to differ materially from the results anticipated by our forward-looking statements, which include, but are not limited to: changes in government and customer priorities and requirements (including government budgetary constraints, shifts in defense spending, and changes in customer short-range and long-range plans); our ability to estimate our future contract costs, including cost increases due to inflation, labor challenges or other factors and our efforts to recover or offset such costs and/or changes in estimated contract costs, and perform our contracts effectively; the adequacy and sufficiency of our resources, including labor and facilities, to allow us to meet our production schedules and timelines and achieve desired performance improvement and risk reduction targets over time; changes in procurement processes and government regulations and our ability to comply with such requirements; our ability to deliver our products and services at an affordable life cycle cost and compete within our markets; natural and environmental disasters and political instability; our ability to execute our strategic plan, including with respect to share repurchases, dividends, capital expenditures, and strategic acquisitions; the availability and pricing of raw materials and components from our suppliers; adverse economic conditions in the United States and globally; health epidemics, pandemics, and similar outbreaks; our ability to attract, retain, and train a qualified workforce; disruptions impacting global supply, including those resulting from the ongoing conflict between Russia and Ukraine and in the Middle East; changes in key estimates and assumptions regarding our pension and retiree health care costs; investigations, claims, disputes, enforcement actions, litigation (including criminal, civil and administrative) and/or other legal proceedings, including the impact that any such proceedings may have on our reputation or ability to do business; improper conduct of employees, agents, subcontractors, suppliers, business partners, or joint ventures in which we participate; security threats, including cyber security threats, and related disruptions; and other risk factors discussed herein and in our other filings with the SEC. Additional factors include those described in our 2023 Annual Report on Form 10-K, including under the captions “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and “Business,” in our subsequent quarterly reports on Form 10-Q, including under the captions “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and in our subsequent filings with the SEC. There may be other risks and uncertainties that we are unable to predict at this time or that we currently do not expect to have a material adverse effect on our business, and we undertake no obligation to update or revise any forward-looking statements. You should not place undue reliance on any forward-looking statements that we may make. This release also contains non-GAAP financial measures and includes a GAAP reconciliation of these financial measures. Non-GAAP financial measures should not be construed as being more important than comparable GAAP measures. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 8 of 14 Exhibit A: Financial Statements HUNTINGTON INGALLS INDUSTRIES, INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED) Three Months Ended September 30 Nine Months Ended September 30 (in millions, except per share amounts) 2024 2023 2024 2023 Sales and service revenues Product sales $ 1,761   $ 1,835  $ 5,474   $ 5,543  Service revenues 988   981  3,057   2,734  Sales and service revenues 2,749   2,816  8,531   8,277  Cost of sales and service revenues Cost of product sales 1,556   1,541  4,720   4,711  Cost of service revenues 871   859  2,682   2,411  Income from operating investments, net 12   9  35   25  General and administrative expenses 252   253  739   711  Operating income 82   172  425   469  Other income (expense) Interest expense (23) (22) (68) (70) Non-operating retirement benefit 44   37  134   111  Other, net 9   2  21   11  Earnings before income taxes 112   189  512   521  Federal and foreign income tax expense 11   41  85   114  Net earnings $ 101   $ 148  $ 427   $ 407  Basic earnings per share $ 2.56   $ 3.70  $ 10.81   $ 10.18  Weighted-average common shares outstanding 39.5   40.0  39.5   40.0  Diluted earnings per share $ 2.56   $ 3.70  $ 10.81   $ 10.18  Weighted-average diluted shares outstanding 39.5   40.0  39.5   40.0  Dividends declared per share $ 1.30   $ 1.24  $ 3.90   $ 3.72  Net earnings from above $ 101   $ 148  $ 427   $ 407  Other comprehensive income (loss) Change in unamortized benefit plan costs 5   4  14   13  Tax expense for items of other comprehensive income (2) (2) (4) (4) Other comprehensive income, net of tax 3   2  10   9  Comprehensive income $ 104   $ 150  $ 437   $ 416  HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 9 of 14 HUNTINGTON INGALLS INDUSTRIES, INC. CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (UNAUDITED) ($ in millions) September 30, 2024 December 31, 2023 Assets Current Assets Cash and cash equivalents $ 10   $ 430  Accounts receivable, net of allowance for expected credit losses of $2 million as of 2024 and $8 million as of 2023 436   461  Contract assets 1,714   1,537  Inventoried costs 205   186  Income taxes receivable 173   183  Prepaid expenses and other current assets 91   83  Total current assets 2,629   2,880  Property, Plant, and Equipment, net of accumulated depreciation of $2,544 million as of 2024 and $2,467 million as of 2023 3,384   3,296  Operating lease assets 249   262  Goodwill 2,618   2,618  Other intangible assets, net of accumulated amortization of $1,091 million as of 2024 and $1,009 million as of 2023 809   891  Pension plan assets 985   888  Miscellaneous other assets 408   380  Total assets $ 11,082   $ 11,215  Liabilities and Stockholders' Equity Current Liabilities Trade accounts payable 579   554  Accrued employees’ compensation 345   382  Short-term debt and current portion of long-term debt 898   231  Current portion of postretirement plan liabilities 129   129  Current portion of workers’ compensation liabilities 224   224  Contract liabilities 743   1,063  Other current liabilities 418   449  Total current liabilities 3,336   3,032  Long-term debt 1,709   2,214  Pension plan liabilities 219   212  Other postretirement plan liabilities 232   241  Workers’ compensation liabilities 448   449  Long-term operating lease liabilities 213   228  Deferred tax liabilities 316   367  Other long-term liabilities 406   379  Total liabilities 6,879   7,122  Commitments and Contingencies Stockholders’ Equity Common stock, $0.01 par value; 150,000,000 shares authorized; 53,713,746 shares issued and 39,129,037 shares outstanding as of 2024, and 53,595,748 shares issued and 39,618,880 shares outstanding as of 2023 1   1  Additional paid-in capital 2,037   2,045  Retained earnings 5,026   4,755  Treasury stock (2,449) (2,286) Accumulated other comprehensive loss (412) (422) Total stockholders’ equity 4,203   4,093  Total liabilities and stockholders’ equity $ 11,082   $ 11,215  HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 10 of 14 HUNTINGTON INGALLS INDUSTRIES, INC.CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)   Nine Months Ended September 30 ($ in millions) 2024 2023 Operating Activities Net earnings $ 427   $ 407  Adjustments to reconcile net cash provided by operating activities: Depreciation 160   163  Amortization of purchased intangibles 82   96  Other non-cash transactions, net 7   16  Stock-based compensation 15   27  Deferred income taxes (55) (81) Gain on investments in marketable securities (22) (10) Change in Accounts receivable 31   (62) Contract assets (177) (60) Inventoried costs (19) (12) Prepaid expenses and other assets (9) (66) Accounts payable and accruals (354) 45  Retiree benefits (84) (55) Net cash provided by operating activities 2   408  Investing Activities: Capital expenditures Capital expenditure additions (253) (164) Grant proceeds for capital expenditures 14   14  Investment in affiliates —   (24) Proceeds from disposition of equity method investments —   61  Other investing activities, net 1   2  Net cash used in investing activities (238) (111) Financing Activities: Repayment of long-term debt (229) (455) Proceeds from revolving credit facility borrowings 42   —  Repayment of revolving credit facility borrowings (42) —  Net borrowings on commercial paper 396   —  Debt issuance costs (7) —  Dividends paid (154) (149) Repurchases of common stock (162) (37) Employee taxes on certain share-based payment arrangements (25) (13) Other financing activities, net (3) (1) Net cash used in financing activities (184) (655) Change in cash and cash equivalents (420) (358) Cash and cash equivalents, beginning of period 430   467  Cash and cash equivalents, end of period $ 10   $ 109  Supplemental Cash Flow Disclosure Cash paid for income taxes (net of refunds) $ 170   $ 227  Cash paid for interest $ 66   $ 63  Non-Cash Investing and Financing Activities Capital expenditures accrued in accounts payable $ 12   $ 6  HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 11 of 14 Exhibit B: Non-GAAP Measures Definitions & Reconciliations We make reference to “segment operating income,” “segment operating margin,” “shipbuilding revenue,” “shipbuilding operating margin,” "Mission Technologies EBITDA," “Mission Technologies EBITDA margin” and “free cash flow.” We internally manage our operations by reference to segment operating income and segment operating margin, which are not recognized measures under GAAP. When analyzing our operating performance, investors should use segment operating income and segment operating margin in addition to, and not as alternatives for, operating income and operating margin or any other performance measure presented in accordance with GAAP. They are measures that we use to evaluate our core operating performance. We believe that segment operating income and segment operating margin reflect additional ways of viewing aspects of our operations that, when viewed with our GAAP results, provide a more complete understanding of factors and trends affecting our business. We believe these measures are used by investors and are a useful indicator to measure our performance. Because not all companies use identical calculations, our presentation of segment operating income and segment operating margin may not be comparable to similarly titled measures of other companies. Shipbuilding revenue, shipbuilding operating margin, Mission Technologies EBITDA and Mission Technologies EBITDA margin are not measures recognized under GAAP. They are measures that we use to evaluate our core operating performance. When analyzing our operating performance, investors should use shipbuilding revenue, shipbuilding operating margin, Mission Technologies EBITDA and Mission Technologies EBITDA margin in addition to, and not as alternatives for, operating income and operating margin or any other performance measure presented in accordance with GAAP. We believe that shipbuilding revenue, shipbuilding operating margin, Mission Technologies EBITDA and Mission Technologies EBITDA margin reflect an additional way of viewing aspects of our operations that, when viewed with our GAAP results, provide a more complete understanding of factors and trends affecting our business. We believe these measures are used by investors and are a useful indicator to measure our performance. Because not all companies use identical calculations, our presentation of shipbuilding revenue, shipbuilding operating margin, Mission Technologies EBITDA and Mission Technologies EBITDA margin may not be comparable to similarly titled measures of other companies. Free cash flow is not a measure recognized under GAAP. Free cash flow has limitations as an analytical tool and should not be considered in isolation from, or as a substitute for net earnings as a measure of our performance or net cash provided or used by operating activities as a measure of our liquidity. We believe free cash flow is an important measure for our investors because it provides them insight into our current and period-to-period performance and our ability to generate cash from continuing operations. We also use free cash flow as a key operating metric in assessing the performance of our business and as a key performance measure in evaluating management performance and determining incentive compensation. Free cash flow may not be comparable to similarly titled measures of other companies. 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. Segment operating income is defined as operating income for the relevant segment(s) before the Operating FAS/CAS Adjustment and non-current state income taxes. Segment operating margin is defined as segment operating income as a percentage of sales and service revenues. Shipbuilding revenue is defined as the combined sales and service revenues from our Newport News Shipbuilding segment and Ingalls Shipbuilding segment. HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 12 of 14 Shipbuilding operating margin is defined as the combined segment operating income of our Newport News Shipbuilding segment and Ingalls Shipbuilding segment as a percentage of shipbuilding revenue. Mission Technologies EBITDA is defined as Mission Technologies segment operating income before interest expense, income taxes, depreciation, and amortization. Mission Technologies EBITDA margin is defined as Mission Technologies EBITDA as a percentage of Mission Technologies revenues. Free cash flow is defined as net cash provided by (used in) operating activities less capital expenditures net of related grant proceeds. Operating FAS/CAS Adjustment is defined as the difference between the service cost component of our pension and other postretirement expense determined in accordance with GAAP (FAS) and our pension and other postretirement expense under U.S. Cost Accounting Standards (CAS). Non-current state income taxes are defined as deferred state income taxes, which reflect the change in deferred state tax assets and liabilities and the tax expense or benefit associated with changes in state uncertain tax positions in the relevant period. These amounts are recorded within operating income. Current period state income tax expense is charged to contract costs and included in cost of sales and service revenues in segment operating income. Certain of the financial measures we present are adjusted for the Operating FAS/CAS Adjustment and non-current state income taxes to reflect the company’s performance based upon the pension costs and state tax expense charged to our contracts under CAS. We use these adjusted measures as internal measures of operating performance and for performance-based compensation decisions. Reconciliations of Segment Operating Income and Segment Operating Margin Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 2024 2023 Ingalls revenues $ 664   $ 711  $ 2,031   $ 1,952  Newport News revenues 1,412   1,453  4,381   4,468  Mission Technologies revenues 709   685  2,224   1,954  Intersegment eliminations (36) (33) (105) (97) Sales and Service Revenues 2,749   2,816  8,531   8,277  Operating Income 82   172  425   469  Operating FAS/CAS Adjustment 16   19  48   55  Non-current state income taxes (1) (4) (3) (12) Segment Operating Income 97   187  470   512    As a percentage of sales and service revenues 3.5  % 6.6  % 5.5  % 6.2  % Ingalls segment operating income 49   73  165   193    As a percentage of Ingalls revenues 7.4  % 10.3  % 8.1  % 9.9  % Newport News segment operating income 15   90  208   269    As a percentage of Newport News revenues 1.1  % 6.2  % 4.7  % 6.0  % Mission Technologies segment operating income 33   24  97   50    As a percentage of Mission Technologies revenues 4.7  % 3.5  % 4.4  % 2.6  % HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 13 of 14 Reconciliation of Free Cash Flow Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 2024 2023 Net cash provided by operating activities $ 213   $ 335  $ 2   $ 408  Less capital expenditures: Capital expenditure additions (88) (53) (253) (164) Grant proceeds for capital expenditures 11   11  14   14  Free cash flow $ 136   $ 293  $ (237) $ 258  Reconciliation of Mission Technologies EBITDA and EBITDA Margin Three Months Ended Nine Months Ended September 30 September 30 ($ in millions) 2024 2023 2024 2023 Mission Technologies sales and service revenues $ 709   $ 685  $ 2,224   $ 1,954  Mission Technologies segment operating income $ 33   $ 24  $ 97   $ 50  Mission Technologies depreciation expense 3   2  8   8  Mission Technologies amortization expense 25   27  75   82  Mission Technologies state tax expense 2   3  6   9  Mission Technologies EBITDA $ 63   $ 56  $ 186   $ 149  Mission Technologies EBITDA margin 8.9   % 8.2  % 8.4   % 7.6  % HII 4101 Washington Ave. • Newport News, VA 23607 www.HII.com Page 14 of 14