Q1 2025 Earnings Call Chris Kastner President and CEO Tom Stiehle EVP and CFO May 1, 2025 Cautionary Statement Regarding Forward-looking Statements 2 HII INVESTMENT THESIS Largest U.S. military seapower provider with leading all-domain, integrated defense Over the next ~20 months: Mid to Long Term: Q1 2025 EARNINGS 3 1 Non-GAAP measure. See appendix for definitions and reconciliations. Statements in this presentation and in our other filings with the SEC, as well as other statements we may make from time to ...

Core Insights - HII reported first quarter 2025 revenues of $2.7 billion, a decrease of 2.5% from the same period in 2024, attributed to lower volumes at Newport News Shipbuilding, Ingalls Shipbuilding, and Mission Technologies [2][10] - Operating income increased to $161 million with an operating margin of 5.9%, compared to $154 million and 5.5% in the first quarter of 2024, driven by favorable operating adjustments and improved segment results [3][4] - Net earnings for the quarter were $149 million, down from $153 million in the first quarter of 2024, with diluted earnings per share at $3.79 compared to $3.87 [5][10] Financial Performance - First quarter revenues were $2.7 billion, down from $2.8 billion in the same quarter of 2024 [9] - Operating income rose to $161 million, a 4.5% increase year-over-year, while operating margin improved by 40 basis points [3][9] - Segment operating income was $171 million with a margin of 6.3%, compared to $170 million and 6.1% in the prior year [4][9] Segment Analysis Ingalls Shipbuilding - Revenues decreased by 2.7% to $637 million, with segment operating income falling to $46 million, a 23.3% decline [11][12] - Segment operating margin was 7.2%, down from 9.2% in the previous year [12] Newport News Shipbuilding - Revenues were $1.4 billion, a decrease of 2.6%, primarily due to lower volumes in aircraft carriers [15] - Segment operating income increased to $85 million, with a margin of 6.1%, up from 5.7% [16][15] Mission Technologies - Revenues were $735 million, down 2.0%, but segment operating income rose to $40 million, a 42.9% increase [19][20] - Segment operating margin improved to 5.4%, compared to 3.7% in the same period last year [20] Contract Awards and Backlog - New contract awards in the first quarter totaled $2.1 billion, resulting in a total backlog of approximately $48.0 billion as of March 31, 2025 [6][10] Financial Outlook - The company reaffirms its financial guidance for FY25, expecting shipbuilding revenue between $8.9 billion and $9.1 billion, with an operating margin of 5.5% to 6.5% [22][23] - Mission Technologies revenue is projected to be between $2.9 billion and $3.1 billion, with an operating margin of 4.0% to 4.5% [22][23]

Contacts: Brooke Hart (Media) brooke.hart@hii-co.com 202-264-7108 Exhibit 99.1 News Release Christie Thomas (Investors) christie.thomas@hii-co.com 757-380-2104 HII Reports First Quarter 2025 Results NEWPORT NEWS, Va. (May 1, 2025) - HII (NYSE: HII) today reported results for the first quarter of fiscal 2025. Highlights First quarter revenues were $2.7 billion First quarter net earnings were $149 million or $3.79 diluted earnings per share New contract awards of $2.1 billion, resulting in backlog of $48 bill ...

Core Points - HII's Virginia-class shipbuilding team has received a contract modification for the construction of two Block V submarines for fiscal year 2024 [1][2] - The contract modification involves Newport News Shipbuilding and General Dynamics Electric Boat, authorizing the construction of the 11th and 12th fast-attack submarines under the Block V contract [1] - HII has successfully built and delivered a total of 24 Virginia-class submarines to date [2] Company Overview - HII is recognized as the largest military shipbuilder in the United States, with over 135 years of experience in enhancing national security [6] - The company employs a workforce of 44,000 and provides a wide range of capabilities, including ships, unmanned systems, cyber solutions, ISR, AI/ML, and synthetic training [6] - HII's mission focuses on delivering powerful ships and all-domain solutions to protect peace and freedom globally [5]

Core Viewpoint - Huntington Ingalls Industries, Inc. (HII) is expected to report a decline in first-quarter 2025 earnings, with negative sales growth projections and weak operating margins impacting overall performance [1][7]. Revenue Performance - The Ingalls unit is anticipated to see revenue growth, with estimates at $663.3 million, reflecting a 1.3% increase from the previous year [2]. - The Newport News unit is likely to experience improved revenue due to higher sales from the Columbia class submarine program, although the Virginia-class aircraft carrier's poor performance may negatively affect overall results [3]. - The Mission Technologies unit is expected to report a revenue decline of 8.7%, with estimates at $0.69 billion, primarily due to lower sales volumes from C5ISR [4][5]. Overall Financial Estimates - The overall sales for HII in the first quarter are estimated at $2.79 billion, indicating a decrease of 0.6% compared to the prior year [6]. - The earnings estimate for HII is projected at $2.90 per share, representing a year-over-year decline of 25.1% [7]. Earnings Prediction Model - The Zacks model indicates that HII is unlikely to achieve an earnings beat this quarter, with an Earnings ESP of -3.09% and a Zacks Rank of 3 (Hold) [8][9].

Core Points - HII, the largest military shipbuilder in the U.S., is launching a "Build It" campaign featuring 15-second television advertisements to promote American manufacturing in support of national defense [1][2] - The campaign highlights the importance of U.S.-built Navy ships, submarines, and advanced technologies, aiming to revitalize American manufacturing and strengthen the defense industrial base [4][10] - HII's President and CEO, Chris Kastner, emphasizes the campaign's role in recognizing the contributions of those in the shipbuilding industry and its impact on national security [3][4] Company Initiatives - HII is actively recruiting talent for shipbuilding and developing the next generation of skilled professionals through rigorous apprenticeship programs across its divisions [7][8] - The apprenticeship programs combine hands-on training, academic coursework, and real-world experience, aiming to create a skilled workforce for the shipbuilding industry [8] - HII offers competitive wages, paid training, and long-term career opportunities across its three divisions, promoting a strong sense of purpose among employees [9] Industry Context - The "Build It" campaign is part of a broader effort to meet the increased demand for ships and technologies from the U.S. Navy and enhance national defense capabilities [4][10] - HII's workforce consists of 44,000 employees, and the company has a history of over 135 years in advancing U.S. national security through various defense solutions [11][12]

Financial Data and Key Metrics Changes - The total number of shares outstanding and entitled to vote at the close of business on the record date was 39,235,593 shares of common stock [10] - Each of the 12 nominees for director received more than 87% of the shares voted and has been elected to serve until the 2026 annual meeting [19] Business Line Data and Key Metrics Changes - The proposal to approve on an advisory basis the compensation of named executive officers received 30,456,940 votes and has passed [19] - The proposal to ratify the appointment of Deloitte and Touche as the company's auditor for 2025 received 34,005,499 votes and has passed [19] Market Data and Key Metrics Changes - The proposal to eliminate the personal liability of officers for monetary damages for breach of certain fiduciary duties received 26,048,180 votes and has passed [19] - The proposal to amend the company's restated certificate of incorporation to conform with the company's special meeting bylaws received 31,294,405 votes and has passed [20] Company Strategy and Development Direction and Industry Competition - The company did not make a formal presentation about its strategy during the meeting but indicated that stockholders received copies of the 2024 annual report and proxy statement [21] Management's Comments on Operating Environment and Future Outlook - Management did not provide specific comments on the operating environment or future outlook during the meeting [21] Other Important Information - The meeting was conducted virtually, and stockholders were able to submit questions through the meeting website [8] - The meeting was adjourned without further business to discuss, indicating a lack of additional inquiries from stockholders [22] Q&A Session All Questions and Answers Question: Were there any questions submitted during the meeting? - There were no questions submitted during the meeting [16][22]

Core Insights - HII is celebrating National Apprenticeship Day by highlighting its apprenticeship programs that contribute to national security through skilled workforce development [1][2][4] Company Overview - HII is the largest military shipbuilder in the U.S. with a history of over 135 years in advancing national security [10][11] - The company employs approximately 44,000 individuals and provides a range of capabilities from ships to advanced technologies [11] Apprenticeship Programs - HII operates three major apprenticeship programs across its divisions, focusing on developing skilled professionals in various trades [3][7] - The Newport News Shipbuilding Apprentice School offers tuition-free apprenticeships in 19 trades, with a history dating back to 1919 [7] - The Ingalls Shipbuilding Apprentice School has produced over 4,000 graduates since 1952, currently enrolling 600 apprentices [7][8] - Mission Technologies' Global Security group offers apprenticeships in nuclear and environmental services, as well as fleet sustainment [8] Commitment to Workforce Development - HII's "Build It" hiring campaign emphasizes the importance of apprenticeship programs in building a skilled workforce [3] - The company partners with educational institutions to provide structured training and invests in STEM education at various school levels [8]

Core Points - HII's Ingalls Shipbuilding division received the 2025 Governor's Initiative for Volunteer Excellence (GIVE) award for its commitment to community service and employee volunteer programs [1][2] - The award recognizes corporations that demonstrate significant community impact through volunteerism as a core value and business strategy [2] - Ingalls Shipbuilding emphasizes volunteerism as part of its identity, with employees actively contributing to local communities [3] Community Engagement - Ingalls Shipbuilding provides a variety of volunteer opportunities for employees, including blood drives, charitable events, community cleanups, and youth mentorship programs [3][7] - The company also hosts educational initiatives like Scout merit badge days and maritime welding competitions to inspire the next generation of skilled professionals [6] Company Overview - HII is a global defense provider and the largest military shipbuilder in the U.S., with a history of over 135 years in advancing national security [8][9] - The company employs approximately 44,000 people and focuses on delivering advanced capabilities in shipbuilding, unmanned systems, and cyber solutions [9]

Core Insights - HII hosted leaders from HD Hyundai Heavy Industries to advance their joint goals outlined in a recent memorandum of understanding, focusing on identifying near-term opportunities and enhancing ship production processes [1][4] Company Collaboration - The visit was part of ongoing discussions between HII and its international partners, showcasing the capabilities of Ingalls Shipbuilding in supporting national security and exchanging best practices [2][4] - HII and HHI aim to leverage their combined expertise to drive technological innovation, improve production efficiency, and strengthen the global defense industry [4] Technological Advancements - The tour included a visit to Ingalls' new virtual welding lab, which enhances the skills of current and future shipbuilders and sets a new benchmark for technology in workforce training [2][4] Company Overview - HII is recognized as the largest military shipbuilder in the U.S., with over 135 years of history in advancing national security, providing capabilities that range from ships to unmanned systems and cyber solutions [6][7]