•2Q23 revenues of $612.4 million

•2Q23 net income of $58.7 million, adjusted EBITDA(1) of $107.0 million

•2Q23 diluted GAAP EPS of $0.64, non-GAAP(1) EPS of $0.65

•Selected to provide the nuclear system and fuel for DARPA's DRACO project, the first nuclear powered spacecraft

•Shipped final missile tube of the Block II contract from our Mount Vernon facility

•Narrowing 2023 non-GAAP(1) EPS guidance to $2.85-$3.00

Lynchburg, VA – August 3, 2023 - BWX Technologies, Inc. (NYSE: BWXT) ("BWXT", "we", "us" or the "Company") reported second quarter 2023 GAAP net income attributable to BWXT of $58.6 million, or diluted earnings per share (EPS) of $0.64, on second quarter revenues of $612.4 million. Second quarter 2023 non-GAAP(1) net income attributable to BWXT was $59.4 million, or non-GAAP(1) diluted EPS of $0.65. Second quarter 2023 adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA)(1) was $107.0 million. A reconciliation of non-GAAP results are detailed in Exhibit 1.

“Our second quarter 2023 results were ahead of expectations, driven largely by exceptional performance in Commercial Operations, with solid execution in both our commercial nuclear and medical businesses,” said Rex D. Geveden, president and chief executive officer. “In the first half of the year we made significant progress onboarding new team members. As expected, this contributed to a sequential margin decline in our Government Operations business, but positions us well for the future growth opportunities we see materializing across our markets.”

“In June, we reached an important operational milestone by delivering our final missile tube. While this business line has had its challenges, I am proud of our team for its dedication to this important Navy program,” said Geveden. “We continue to effectively execute our growth strategy across multiple nuclear markets. In that vein, we are excited to announce that NASA and DARPA selected BWX Technologies to build a prototype nuclear rocket engine for demonstration in space, highlighting our ability to address power and propulsion applications in all domains including maritime, terrestrial, and now space, with our best-in-class nuclear solutions.”

“Looking forward, we continue to see momentum building for the use of nuclear technologies in our national security, clean energy and medical markets,” continued Geveden. “Given solid demand trends, and our strong first half results, we are narrowing our 2023 adjusted EPS guidance to $2.85-$3.00.”

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

Second quarter revenue increased in both operating segments. The Government Operations increase was driven by higher naval nuclear component production and microreactors volume, partially offset by lower long-lead material procurement. The Commercial Operations increase was driven by an increase in medical sales as well as higher revenue associated with commercial nuclear field services, which was partially offset by lower fuel fabrication and nuclear component volumes.

Operating Income and Adjusted EBITDA(1)

Second quarter operating income decreased in both operating segments. The Government Operations decrease was mainly due to higher 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 decrease was largely due to a less favorable business mix that was weighted toward refurbishment and life extension field services, compared to a greater mix of outage work in the second quarter of 2022, and mitigated by higher profitability in medical.

Second quarter total adjusted EBITDA(1) decreased for the reasons noted above.

The second quarter GAAP and non-GAAP EPS(1) decrease was driven primarily by lower operating income as well as higher interest expense and lower pension income.

Operating cash flow increased as lower net income was offset by improving 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, that are nearing completion, partially offset by an increase in capital expenditures for microreactors.

BWXT paid $21.1 million in dividends to shareholders in second quarter 2023. On August 2, 2023, the BWXT Board of Directors declared a quarterly cash dividend of $0.23 per common share payable on September 7, 2023, to shareholders of record on August 17, 2023.

BWXT reaffirmed its 2023 guidance for increased adjusted EBITDA and free cash flow, and narrowed its guidance range for non-GAAP(1) EPS.

Additional information can be found in the 2023 second quarter earnings call presentation on the BWXT investor relations website at www.bwxt.com/investors. 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.

Date: Thursday, August 3, 2023, at 5:00 p.m. EST

Live Webcast: Investor Relations section of website at www.bwxt.com

A full version of this earnings release is available on our Investor Relations website at http://investors.bwxt.com/2Q2023-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, 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.

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.

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 2023 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; the lack of, or adverse changes in, federal appropriations to government programs in which we participate; 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, 2022 and subsequent Form 10-Q filings. 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 approximately 7,000 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. Follow us on Twitter at @BWXT and learn more at www.bwxt.com.

RECONCILIATION OF NON-GAAP OPERATING INCOME AND EARNINGS PER SHARE(1)(2)(3)

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)