•4Q23 diluted GAAP EPS of $0.72, diluted non-GAAP(1) EPS of $1.01, on revenue of $725.5 million

•4Q23 net income of $66.3 million, adjusted EBITDA(1) of $147.6 million

•2023 diluted GAAP EPS of $2.68, diluted non-GAAP(1) EPS of $3.02, on revenue of $2.5 billion

•2023 net income of $246.3 million, adjusted EBITDA(1) of $471.9 million

•2023 operating cash flow of $363.7 million, free cash flow(1) of $212.4 million

•Initiates 2024 guidance for Non-GAAP EPS of $3.05-$3.20, adjusted EBITDA(1) of ~$500 million

•To host Investor Day on Wednesday, February 28, 2024

Lynchburg, VA - Feb. 27, 2024 - BWX Technologies, Inc. (NYSE: BWXT) ("BWXT", "we", "us" or the "Company") reported fourth quarter and full year 2023 results. A reconciliation of non-GAAP results are detailed in Exhibit 1.

“We had a strong finish to 2023, with double-digit revenue and adjusted EBITDA growth and robust free cash flow in the fourth quarter, as expected,” said Rex D. Geveden, president and chief executive officer. “In 2023, we had record revenue and adjusted EBITDA and achieved many important objectives, including a 10% increase in our labor force, the award of Project DRACO, multiple new program wins in our special materials portfolio, backlog growth in commercial nuclear power, and a turn to positive EBITDA at BWXT Medical, as well as strong performance on our missile tubes program including a final recovery settlement for the cost growth that was driven by out-of-scope changes and absorbed by BWXT over the past couple years.”

“Looking ahead, we expect the momentum from 2023 to carry into 2024 and more than offset the anticipated lull in aircraft carrier propulsion systems production, as other elements of our nuclear portfolio gather strength,” said Geveden. “As such, we are initiating 2024 guidance that calls for Non-GAAP EPS of $3.05-$3.20 and adjusted EBITDA of approximately $500 million, up mid-single digits compared to 2023, in-line with the preliminary 2024 outlook we provided last quarter.”

“We are as excited as ever about the future of BWXT,” continued Geveden. “The favorable market trends we are experiencing across our business, combined with our unparalleled assets, unique operating licenses and highly skilled workforce position BWXT for continued success in 2024 and beyond. We look forward to providing additional detail on our markets, strategy and financial outlook at our 2024 Investor Day tomorrow.”

NM = Not Meaningful

(2) Items named in the Financial Results Summary differ from names in BWXT Financial Statement. Operating Cash Flow = Net Cash Provided by Operating Activities; Capital Expenditures = Purchases of Property, Plant and Equipment; Share Repurchases = Repurchases of Common Stock; Dividends Paid = Dividends Paid to Common Shareholders

Fourth quarter revenue increased in both operating segments. The Government Operations increase was driven by higher naval nuclear component production, long-lead materials procurement, microreactors and special materials processing. The Commercial Operations increase was driven by higher revenue associated with commercial nuclear field services and fuel handling, as well as higher medical sales, which was partially offset by slightly lower fuel and components volume.

The full year consolidated revenue increase was driven by growth in both operating segments. The Government Operations increase was driven by higher naval nuclear component production, microreactors volume and higher special materials revenue. The Commercial Operations increase was driven by an increase in field services as well as higher sales associated with medical and higher fuel handling and components volume.

Operating Income and Adjusted EBITDA(1)

Fourth quarter operating income increased in both operating segments. The Government Operations increase was due to higher revenue and favorable contract adjustments, but partially offset by costs associated with the increase in staffing levels and associated training and related inefficiencies, as well as mix due to higher advanced technologies revenue.

The Commercial Operations increase was due to improved profitability in medical, but partially offset by less favorable commercial nuclear business mix that was weighted toward refurbishment and life extension field services, compared to a greater mix of outage work in the fourth quarter of 2022. Higher segment operating income was partially offset by higher corporate expense.

Full year operating income increased in both segments. The Government Operations increase was due to higher revenue and favorable contract adjustments. The Commercial Operations increase was driven by improved profitability in medical, but partially offset by lower commercial nuclear income as business mix was weighted toward refurbishment and life extension field services, compared to a greater mix of outage work in 2022. Higher segment operating income was partially offset by higher corporate expense.

Fourth quarter and full year total adjusted EBITDA(1) increased for the reasons noted above.

Fourth quarter and full year 2023 GAAP EPS increased as higher operating income and a lower effective tax rate were partially offset by higher interest expense, lower pension income, and a lower mark-to-market loss on the pension compared to fourth quarter 2022. Non-GAAP EPS(1) increased driven by the items noted above, excluding mark-to-market pension losses, restructuring costs and other one-time items.

Fourth quarter and full year 2023 operating cash flow increased due to higher net income and improved working capital management. Lower capital expenditures were driven by lower spending on two major growth capital campaigns for U.S. naval nuclear reactors and medical radioisotopes, both of which are largely complete, partially offset by an increase in capital expenditures for microreactors and other select growth investments.

BWXT paid $21.1 million, or $0.23 per common share, to shareholders in the fourth quarter 2023 and paid $85.0 million to shareholders for the full year 2023. On February 23, 2024, the BWXT Board of Directors declared a quarterly cash dividend of $0.24 per common share payable on March 28, 2024, to shareholders of record on March 11, 2024.

BWXT announced its expectations for fiscal year 2024 financial results, providing the following guidance:

(2) BWXT has not included a reconciliation of provided non-GAAP guidance to comparable GAAP measures due to the difficult of estimating any mark-to-market adjustments for pension and post-retirement benefits, which are determined at the end of the year.

Additional information can be found in the 2023 fourth quarter earnings call presentation on the BWXT investor relations website at investors.bwxt.com. The Company does not provide GAAP guidance because it is unable to reliably forecast most of the items that are excluded from GAAP to calculate non-GAAP results.

These items could cause GAAP results to differ materially from non-GAAP results.

The Company is hosting its 2024 Investor Day on Wednesday, February 28, 2024 at 8:30 a.m. EST. Interested parties can register for the live webcast through the events page of the BWXT investor relations website at investors.bwxt.com.

Date: Tuesday, February 27, 2024, at 5:00 p.m. EST

Live Webcast: BWXT Investor Relations website at investors.bwxt.com

A full version of this earnings release is available on our Investor Relations website at http://investors.bwxt.com/4Q2023-release.

BWXT may use its website (www.bwxt.com) as a channel of distribution of material Company information. Financial and other important information regarding BWXT is routinely accessible through and posted on our website. In addition, you may elect to automatically receive e-mail alerts and other information about BWXT by enrolling through the “Email Alerts” section of our website at http://investors.bwxt.com.

BWXT uses and makes reference to adjusted EBITDA, Non-GAAP EPS, free cash flow and free cash flow conversion, which are not recognized measures under GAAP. BWXT is providing these non-GAAP measures to supplement the results provided in accordance with GAAP and it should not be considered superior to, or as a substitute for, the comparable GAAP measures. BWXT believes the non-GAAP measures provide meaningful insight and transparency into the Company’s operational performance and provides these measures to investors to help facilitate comparisons of operating results with prior periods and to assist them in understanding BWXT's ongoing operations. Definitions for the non-GAAP measures are provided below and reconciliations are detailed in Exhibit 1, except that reconciliations of forward-looking GAAP measures are not provided because the company is unable to reliably forecast most of the items that are excluded from GAAP to calculate non-GAAP results. Other companies may define these measures differently or may utilize different non-GAAP measures, thus impacting comparability.

Non-GAAP Earnings Per Share (EPS) is calculated using GAAP EPS less the non-operational tax effected per share impact of pension & OPEB mark-to-market gains or losses and other one-time items, such as restructuring, transformation, and acquisition-related costs.

Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA) is calculated using non-GAAP net income, plus provision for income taxes, less other – net, less interest income, plus interest expense, plus depreciation and amortization.

Adjusted pre-tax income is non-GAAP income before provision for income taxes.

Free Cash Flow (FCF) is calculated using net income to derive net cash provided by (used in) operating activities less purchases of property, plant and equipment.

Free Cash Flow conversion is free cash flow divided by net income.

Our GAAP financial results detailed in Exhibit 1 have been adjusted for the following items:

Restructuring and Transformation Costs: Restructuring and transformation related costs include restructuring charges as well as costs associated with our efforts to optimize underlying business processes through investments in information technology, process improvements and the implementation of strategic actions and initiatives which we deem to be incremental and non-recurring in nature.

Acquisition-related Costs: Acquisition-related costs relate to third-party professional service costs and one-time incremental costs associated with efforts to integrate the acquired business with our legacy operations.

BWXT cautions that this release contains forward-looking statements, including, without limitation, statements relating to backlog, to the extent they may be viewed as an indicator of future revenues; our plans and expectations for each of our reportable segments, including growth opportunities and the expectations, timing and revenue of our strategic initiatives, such as medical radioisotopes, SMR components and recent acquisitions; disruptions to our supply chain and/or operations, changes in government regulations and other factors; and our expectations and guidance for 2024 and beyond. These forward-looking statements are based on management’s current expectations and involve a number of risks and uncertainties, including, among other things, our ability to execute contracts in backlog; federal budget uncertainty, the risk of future budget cuts, the impact of continuing resolution funding mechanisms and the debt ceiling, the potential for government shutdowns and changing funding and acquisition priorities; the demand for and competitiveness of nuclear products and services; capital priorities of power generating utilities and other customers; the timing of technology development, regulatory approvals and automation of production; the receipt and/or timing of government approvals; the potential recurrence of subsequent waves or strains of COVID-19 or similar diseases; labor market challenges, including employee retention and recruitment; adverse changes in the industries in which we operate; and delays, changes or termination of contracts in backlog. If one or more of these risks or other risks materialize, actual results may vary materially from those expressed. For a more complete discussion of these and other risk factors, see BWXT’s filings with the Securities and Exchange Commission, including our annual report on Form 10-K for the year ended December 31, 2023. BWXT cautions not to place undue reliance on these forward-looking statements, which speak only as of the date of this release, and undertakes no obligation to update or revise any forward-looking statement, except to the extent required by applicable law.

At BWX Technologies, Inc. (NYSE: BWXT), we are People Strong, Innovation Driven. Headquartered in Lynchburg, Virginia, BWXT is a Defense News Top 100 manufacturing and engineering innovator that provides safe and effective nuclear solutions for global security, clean energy, environmental restoration, nuclear medicine and space exploration. With more than 7,800 employees, BWXT has 14 major operating sites in the U.S., Canada and the U.K. In addition, BWXT joint ventures provide management and operations at a dozen U.S. Department of Energy and NASA facilities. For more information, visit www.bwxt.com. Follow us on LinkedIn, X, Facebook and Instagram.

RECONCILIATION OF CONSOLIDATED ADJUSTED EBITDA(1)(2)(3)

RECONCILIATION OF REPORTING SEGMENT ADJUSTED EBITDA(1)(2)(3)

RECONCILIATION OF CONSOLIDATED FREE CASH FLOW(1)(2)(3)