• Fourth quarter revenues grew 13% year over year, to a record $3.2 billion
• Record 2023 revenues of $11.5 billion, grew 7.3% year over year
• Diluted earnings per share was $6.90 for the fourth quarter, $17.07 for 2023
• Net cash provided from operations was $970 million, and free cash flow¹ was $692 million in 2023

NEWPORT NEWS, Va., Feb. 01, 2024 (GLOBE NEWSWIRE) — HII (NYSE:HII) reported fourth quarter 2023 revenues of $3.2 billion, up 13% from the fourth quarter of 2022, due to higher volumes at all three segments. Operating income in the fourth quarter of 2023 was $312 million and operating margin was 9.8%, compared to $105 million and 3.7%, respectively, in the fourth quarter of 2022, primarily due to higher segment operating income¹. Diluted earnings per share in the quarter was $6.90, compared to $3.07 in the fourth quarter of 2022.

For the full year, record revenues of $11.5 billion increased 7.3% over 2022, due to higher volumes at all three segments. Operating income in 2023 was $781 million and operating margin was 6.8%, compared to $565 million and 5.3%, respectively, in 2022. Segment operating income¹ in 2023 was $842 million and segment operating margin¹ was 7.4%, compared to $712 million and 6.7%, respectively, in 2022, primarily driven by the sale of a court judgment and the settlement of an insurance claim. Diluted earnings per share for the full year was $17.07, compared to $14.44 in 2022.

Net cash provided by operating activities in 2023 was $970 million and free cash flow¹ was $692 million, compared to $766 million and $494 million, respectively, in 2022.

New contract awards in 2023 were approximately $12.5 billion, bringing total backlog to approximately $48.1 billion as of December 31, 2023.

“2023 was a strong year for HII. We continue to invest both in our shipyards and in IRAD to both expand capacity and develop new products and solutions for our customers. Our growth rate for the year of over 7% and our free cash flow generation at almost $700M illustrate that we are entering a period of accelerated growth and increased free cash flow generation at HII,” said Chris Kastner, HII’s president and CEO. “Looking ahead, over the next 5 years we expect growth of over 4% and cash generation of $3.6B. Our expectations are grounded in the assumption we must deliver on our commitments to our customers.”

Results of Operations

	Three Months Ended												Year Ended
	December 31												December 31
($ in millions, except per share amounts)		2023			2022		$ Change			% Change				2023			2022		$ Change			% Change
Sales and service revenues	$	3,177		$	2,812		$	365		13.0	%		$	11,454		$	10,676		$	778		7.3	%
Operating income		312			105			207		197.1	%			781			565			216		38.2	%
Operating margin %		9.8	%		3.7	%				609 bps				6.8	%		5.3	%				153 bps
Segment operating income1		330			145			185		127.6	%			842			712			130		18.3	%
Segment operating margin %1		10.4	%		5.2	%				523 bps				7.4	%		6.7	%				68 bps
Net earnings		274			123			151		122.8	%			681			579			102		17.6	%
Diluted earnings per share	$	6.90		$	3.07		$	3.83		124.8	%		$	17.07		$	14.44		$	2.63		18.2	%
1Non-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												Year Ended
	December 31												December 31
($ in millions)		2023			2022		$ Change			% Change				2023			2022		$ Change			% Change
Sales and service revenues	$	800		$	658		$	142		21.6	%		$	2,752		$	2,570		$	182		7.1	%
Segment operating income1		169			50			119		238.0	%			362			292			70		24.0	%
Segment operating margin %1		21.1	%		7.6	%				1353 bps				13.2	%		11.4	%				179 bps
1 Non-GAAP measures. See Exhibit B for definitions and reconciliations.

Ingalls Shipbuilding revenues for the fourth quarter of 2023 were $800 million, an increase of $142 million, or 21.6%, from the same period in 2022, primarily driven by higher volumes in surface combatants and amphibious assault ships, partially offset by lower volumes in the Legend class National Security Cutter (“NSC”) program.

Ingalls Shipbuilding segment operating income¹ for the fourth quarter of 2023 was $169 million, an increase of $119 million from the same period in 2022. Ingalls segment operating margin¹ in the fourth quarter of 2023 was 21.1%, compared to 7.6% in the same period the prior year. These increases were primarily driven by the sale of our court judgment against the Bolivarian Republic of Venezuela, to recover unpaid receivables for the prior repair, refurbishment, and modernization of foreign-built frigates, higher volumes described above, and a contract incentives on Arleigh Burke class (DDG 51) destroyers.

Ingalls Shipbuilding 2023 revenues were $2.8 billion, an increase of $182 million, or 7.1%, compared to 2022, primarily driven by higher volumes in surface combatants and amphibious assault ships, partially offset by lower volumes in the NSC program.

Ingalls Shipbuilding segment operating income¹ in 2023 was $362 million, an increase of $70 million, or 24%, from 2022. Full year 2023 Ingalls segment operating margin¹ was 13.2%, compared to 11.4% in 2022. These increases were primarily driven by the sale of our court judgment against the Bolivarian Republic of Venezuela, to recover unpaid receivables for the prior repair, refurbishment, and modernization of foreign-built frigates, higher volumes described above, and a contract incentive on Jeremiah Denton (DDG 129), partially offset by lower risk retirement on USS Fort Lauderdale (LPD 28), delivered in 2022, and Harrisburg (LPD 30).

Key 2023 Ingalls Shipbuilding milestones:

• Delivered guided missile destroyer Jack H. Lucas (DDG 125)
• Delivered National Security Cutter Calhoun (NSC 10)
• Launched and christened amphibious assault ship Bougainville (LHA 8)
• Launched and christened guided missile destroyer Ted Stevens (DDG 128)
• Awarded the construction contract for LPD 32
• Awarded contracts for seven Arleigh Burke-class (DDG 51) destroyers

_{¹Non-GAAP measures. See Exhibit B for definitions and reconciliations.}

Newport News Shipbuilding

	Three Months Ended												Year Ended
	December 31												December 31
($ in millions)		2023			2022		$ Change			% Change				2023			2022		$ Change			% Change
Sales and service revenues	$	1,665		$	1,584		$	81		5.1	%		$	6,133		$	5,852		$	281		4.8	%
Segment operating income1		110			80			30		37.5	%			379			357			22		6.2	%
Segment operating margin %1		6.6	%		5.1	%				156 bps				6.2	%		6.1	%				8 bps
1 Non-GAAP measures. See Exhibit B for definitions and reconciliations.

Newport News Shipbuilding revenues for the fourth quarter of 2023 were $1.7 billion, an increase of $81 million, or 5.1%, from the same period in 2022, primarily driven by higher volumes in aircraft carrier construction and engineering and submarines, partially offset by lower volumes in the refueling and complex overhaul (“RCOH”).

Newport News Shipbuilding segment operating income¹ for the fourth quarter of 2023 was $110 million, an increase of $30 million from the same period in 2022. Newport News segment operating margin¹ in the fourth quarter of 2023 was 6.6%, compared to 5.1% in the same period last year. The increases were primarily due to higher volumes described above, a revenue adjustment on the RCOH of USS George Washington (CVN 73) and revenue and contract adjustments on aircraft carrier programs.

Newport News Shipbuilding 2023 revenues were $6.1 billion, an increase of $281 million, or 4.8%, compared to 2022, primarily driven by higher volumes in aircraft carrier construction and engineering, the Columbia class (SSBN 826) submarine program, submarine services, and the Virginia class (SSN 774) submarine program, partially offset by lower volumes in aircraft carrier RCOH and naval nuclear support services.

Newport News Shipbuilding segment operating income¹ for 2023 was $379 million, an increase of $22 million from 2022. Full year 2023 Newport News segment operating margin¹ was 6.2%, compared to 6.1% in 2022. The increases were due to higher volumes described above and a revenue adjustment on the RCOH of USS George Washington (CVN 73), partially offset by contract incentives on the Columbia class (SSBN 826) submarine program in 2022.

Key 2023 Newport News Shipbuilding milestones:

• Re-delivered USS George Washington (CVN 73)
• Awarded $568 million subcontract modification to provide long-lead-time material and advance construction activities for Columbia-class submarines
• Awarded $528 million contract to support maintenance of nuclear-powered aircraft carriers ported in San Diego

_{¹Non-GAAP measures. See Exhibit B for definitions and reconciliations.}

Mission Technologies

	Three Months Ended												Year Ended
	December 31												December 31
($ in millions)		2023			2022		$ Change			% Change				2023			2022		$ Change			% Change
Sales and service revenues	$	745		$	602		$	143		23.8	%		$	2,699		$	2,387		$	312		13.1	%
Segment operating income1		51			15			36		240.0	%			101			63			38		60.3	%
Segment operating margin %1		6.8	%		2.5	%				435 bps				3.7	%		2.6	%				110 bps
1 Non-GAAP measures. See Exhibit B for definitions and reconciliations.

Mission Technologies revenues for the fourth quarter of 2023 were $745 million, an increase of $143 million from the same period in 2022. The increase was primarily due to growth in C5ISR.

Mission Technologies segment operating income¹ in the fourth quarter of 2023 was $51 million, compared to $15 million in the fourth quarter of 2022. Segment operating margin¹ for the fourth quarter of 2023 was 6.8%, compared to 2.5% in the same period the prior year. The increases in segment operating income¹ and segment operating margin¹ were primarily driven by the settlement of a representations and warranties insurance claim related to the acquisition of Hydroid and higher volumes described above, partially offset by performance in Live, Virtual and Constructive Solutions (“LVC”) and fleet sustainment.

Mission Technologies 2023 revenues were $2.7 billion, an increase of $312 million, or 13.1%, compared to 2022, primarily due to higher volumes in C5ISR and cyber, electronic warfare & space (“CEW&S”) contracts.

Mission Technologies segment operating income¹ in 2023 was $101 million, an increase of $38 million, or 60.3%, from 2022. Mission Technologies segment operating margin¹ in 2023 was 3.7%, compared to 2.6% in 2022. The increases in segment operating income¹ and segment operating margin¹ were primarily driven by the settlement of a representations and warranties insurance claim related to the acquisition of Hydroid and higher volumes described above, partially offset by a contract loss and lower equity income from the disposition of our investment in an unconsolidated ship repair and specialty fabrication joint venture.

Mission Technologies results included approximately $109 million of amortization of purchased intangible assets in 2023, compared to approximately $120 million in 2022. Mission Technologies EBITDA margin¹ for full year 2023 was 8.6%, compared to 8.2% in 2022.

Key 2023 Mission Technologies milestones:

• Awarded $1.4 billion joint network engineering and emerging operations task order
• Awarded $347 million contract for Lionfish Small Unmanned Undersea Vehicles
• Awarded $244 million task order to integrate Minotaur software products into maritime platforms

_{¹Non-GAAP measures. See Exhibit B for definitions and reconciliations.}

HII’s Financial Outlook¹includes the following expectations:

• Mid to long term⁵ HII revenue growth of 4%+
• Mid to long term⁵ shipbuilding revenue² growth of approximately 4%
• Mid to long term⁵ Mission Technologies revenue growth of approximately 5%
• FY24 shipbuilding revenue² between $8.8 and $9.1 billion; expect shipbuilding operating margin² between 7.6% and 7.8%
• FY24 Mission Technologies revenue between $2.7 to $2.75 billion, Mission Technologies segment operating margin² between 3.0% and 3.5%; and Mission Technologies EBITDA margin² between 8.0% and 8.5%
• FY24 free cash flow^2,3 between $600 to $700 million³
• FY20-FY24 free cash flow^2,3 of approximately $3.0 billion³
• FY24-FY28 free cash flow^2,3 of approximately $3.6 billion³

		FY24 Outlook1
Shipbuilding Revenue2		$8.8B – $9.1B
Shipbuilding Operating Margin2		7.6% – 7.8%
Mission Technologies Revenue		$2.7B – $2.75B
Mission Technologies Segment Operating Margin2		3.0% – 3.5%
Mission Technologies EBITDA Margin2		8.0% – 8.5%
Operating FAS/CAS Adjustment		($63M)
Non-current State Income Tax Benefit/Expense4		~$0M
Interest Expense		($90M)
Non-operating Retirement Benefit		$178M
Effective Tax Rate		~21%
Depreciation & Amortization		~$350M
Capital Expenditures		~5.3% of Sales
Free Cash Flow2, 3		$600M – $700M

1The 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.

2Non-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 we are unable to provide such reconciliations without unreasonable effort due to the uncertainty and inherent difficulty of predicting the future occurrence and financial impact of certain elements of GAAP and non-GAAP measures. For the same reasons, we are unable to address the significance of the unavailable information.

3Outlook is based on current tax law and assumes the provisions requiring capitalization of R&D expenditures for tax purposes are not deferred or repealed.

4Outlook 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.

5Mid to long term growth represents our expected compound annual growth rate over five to ten years.

About Huntington Ingalls Industries

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 over 44,000 strong. For more information, visit 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, February 8th by calling (866) 813-9403 or (929) 458-6194 and using access code 907434.

Cautionary Statement Regarding Forward-Looking Statements

Statements in this 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,” 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); significant delays in appropriations for our programs and U.S. government funding more broadly; our ability to estimate our future contract costs, including cost increases due to inflation, and perform our contracts effectively; 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; adverse economic conditions in the United States and globally; health epidemics, pandemics and similar outbreaks; our ability to attract, train, and retain 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; security threats, including cyber security threats, and related disruptions; and other risk factors discussed in our Annual Report on Form 10-K for the year ended December 31, 2023 and our other filings with the U.S. Securities and Exchange Commission. 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.

Exhibit A: Financial Statements

HUNTINGTON INGALLS INDUSTRIES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED)

		Three Months Ended December 31								Year Ended December 31
(in millions, except per share amounts)			2023				2022				2023				2022
Sales and service revenues
Product sales		$	2,121			$	1,956			$	7,664			$	7,283
Service revenues			1,056				856				3,790				3,393
Sales and service revenues			3,177				2,812				11,454				10,676
Cost of sales and service revenues
Cost of product sales			1,756				1,714				6,467				6,225
Cost of service revenues			930				759				3,341				3,011
Income from operating investments, net			12				1				37				48
Other income and gains, net			120				1				120				1
General and administrative expenses			311				236				1,022				924
Operating income			312				105				781				565
Other income (expense)
Interest expense			(25	)			(23	)			(95	)			(102	)
Non-operating retirement benefit			37				67				148				276
Other, net			8				10				19				(20	)
Earnings before income taxes			332				159				853				719
Federal and foreign income tax expense			58				36				172				140
Net earnings		$	274			$	123			$	681			$	579
Basic earnings per share		$	6.90			$	3.07			$	17.07			$	14.44
Weighted-average common shares outstanding			39.7				40.1				39.9				40.1
Diluted earnings per share		$	6.90			$	3.07			$	17.07			$	14.44
Weighted-average diluted shares outstanding			39.7				40.1				39.9				40.1
Dividends declared per share		$	1.30			$	1.24			$	5.02			$	4.78
Net earnings from above		$	274			$	123			$	681			$	579
Other comprehensive income
Change in unamortized benefit plan costs			225				497				238				436
Other			—				2				—				—
Tax expense for items of other comprehensive income			(57	)			(128	)			(61	)			(112	)
Other comprehensive income, net of tax			168				371				177				324
Comprehensive income		$	442			$	494			$	858			$	903

HUNTINGTON INGALLS INDUSTRIES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (UNAUDITED)

($ in millions)		December 31, 2023				December 31, 2022
Assets
Current Assets
Cash and cash equivalents		$	430			$	467
Accounts receivable, net			461				636
Contract assets			1,537				1,240
Inventoried costs, net			186				183
Income taxes receivable			183				170
Prepaid expenses and other current assets			83				50
Total current assets			2,880				2,746
Property, Plant, and Equipment, net of accumulated depreciation of $2,467 million as of 2023 and $2,319 million as of 2022			3,296				3,198
Other Assets
Operating lease assets			262				282
Goodwill			2,618				2,618
Other intangible assets, net of accumulated amortization of $1,009 million as of 2023 and $881 million as of 2022			891				1,019
Pension plan assets			888				600
Miscellaneous other assets			380				394
Total other assets			5,039				4,913
Total assets		$	11,215			$	10,857
Liabilities and Stockholders’ Equity
Current Liabilities
Trade accounts payable			554				642
Accrued employees’ compensation			382				345
Current portion of long-term debt			231				399
Current portion of postretirement plan liabilities			129				134
Current portion of workers’ compensation liabilities			224				229
Contract liabilities			1,063				766
Other current liabilities			449				380
Total current liabilities			3,032				2,895
Long-term debt			2,214				2,506
Pension plan liabilities			212				214
Other postretirement plan liabilities			241				260
Workers’ compensation liabilities			449				463
Long-term operating lease liabilities			228				246
Deferred tax liabilities			367				418
Other long-term liabilities			379				366
Total liabilities			7,122				7,368
Commitments and Contingencies
Stockholders’ Equity
Common stock, $0.01 par value; 150,000,000 shares authorized; 53,595,748 issued and 39,618,880 outstanding as of December 31, 2023, and 53,503,317 issued and 39,863,456 outstanding as of December 31, 2022			1				1
Additional paid-in capital			2,045				2,022
Retained earnings			4,755				4,276
Treasury stock			(2,286	)			(2,211	)
Accumulated other comprehensive loss			(422	)			(599	)
Total stockholders’ equity			4,093				3,489
Total liabilities and stockholders’ equity		$	11,215			$	10,857

HUNTINGTON INGALLS INDUSTRIES, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Year Ended December 31
($ in millions)		2023				2022
Operating Activities
Net earnings	$	681			$	579
Adjustments to reconcile to net cash provided by operating activities
Depreciation		219				218
Amortization of purchased intangibles		128				140
Amortization of debt issuance costs		8				8
Provision for expected credit losses		6				(7	)
Stock-based compensation		34				36
Deferred income taxes		(113	)			2
Loss (gain) on investments in marketable securities		(23	)			25
Change in
Accounts receivable		168				(196	)
Contract assets		(297	)			70
Inventoried costs		(3	)			(22	)
Prepaid expenses and other assets		(42	)			20
Accounts payable and accruals		264				6
Retiree benefits		(75	)			(127	)
Other non-cash transactions, net		15				14
Net cash provided by operating activities		970				766
Investing Activities
Capital expenditures
Capital expenditure additions		(292	)			(284	)
Grant proceeds for capital expenditures		14				12
Investment in affiliates		(24	)			(5	)
Proceeds from equity method investment		63				6
Other investing activities, net		3				3
Net cash used in investing activities		(236	)			(268	)
Financing Activities
Repayment of long-term debt		(480	)			(400	)
Proceeds from line of credit borrowings		—				24
Repayment of line of credit borrowings		—				(24	)
Dividends paid		(200	)			(192	)
Repurchases of common stock		(75	)			(52	)
Employee taxes on certain share-based payment arrangements		(13	)			(14	)
Other financing activities, net		(3	)			—
Net cash used in financing activities		(771	)			(658	)
Change in cash and cash equivalents		(37	)			(160	)
Cash and cash equivalents, beginning of period		467				627
Cash and cash equivalents, end of period	$	430			$	467
Supplemental Cash Flow Disclosure
Cash paid for income taxes (net of refunds)	$	330			$	127
Cash paid for interest	$	101			$	100
Non-Cash Investing and Financing Activities
Capital expenditures accrued in accounts payable	$	29			$	12

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.

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								Year Ended
		December 31								December 31
($ in millions)			2023				2022				2023				2022
Ingalls revenues		$	800			$	658			$	2,752			$	2,570
Newport News revenues			1,665				1,584				6,133				5,852
Mission Technologies revenues			745				602				2,699				2,387
Intersegment eliminations			(33	)			(32	)			(130	)			(133	)
Sales and Service Revenues			3,177				2,812				11,454				10,676
Operating Income			312				105				781				565
Operating FAS/CAS Adjustment			17				37				72				145
Non-current state income taxes			1				3				(11	)			2
Segment Operating Income			330				145				842				712
As a percentage of sales and service revenues			10.4	%			5.2	%			7.4	%			6.7	%
Ingalls segment operating income			169				50				362				292
As a percentage of Ingalls revenues			21.1	%			7.6	%			13.2	%			11.4	%
Newport News segment operating income			110				80				379				357
As a percentage of Newport News revenues			6.6	%			5.1	%			6.2	%			6.1	%
Mission Technologies segment operating income			51				15				101				63
As a percentage of Mission Technologies revenues			6.8	%			2.5	%			3.7	%			2.6	%

Reconciliation of Free Cash Flow

		Three Months Ended								Year Ended
		December 31								December 31
($ in millions)			2023				2022				2023				2022
Net cash provided by operating activities		$	562			$	601			$	970			$	766
Less capital expenditures:
Capital expenditure additions			(128	)			(105	)			(292	)			(284	)
Grant proceeds for capital expenditures			—				12				14				12
Free cash flow		$	434			$	508			$	692			$	494

Reconciliation of Mission Technologies EBITDA and EBITDA Margin

		Three Months Ended								Year Ended
		December 31								December 31
($ in millions)			2023				2022				2023				2022
Mission Technologies sales and service revenues		$	745			$	602			$	2,699			$	2,387
Mission Technologies segment operating income		$	51			$	15			$	101			$	63
Mission Technologies depreciation expense			3				2				11				10
Mission Technologies amortization expense			27				30				109				120
Mission Technologies state tax expense			2				(7	)			11				2
Mission Technologies EBITDA		$	83			$	40			$	232			$	195
Mission Technologies EBITDA margin			11.1	%			6.6	%			8.6	%			8.2	%

Contacts:
Brooke Hart (Media)		Christie Thomas (Investors)
[email protected]		[email protected]
202-264-7108		757-380-2104

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