Core & Main, Inc. (NYSE:CNM) ("Core & Main"), a leading specialty distributor dedicated to advancing reliable infrastructure with local service, nationwide, will issue its financial results for the third quarter ended Nov. 2, 2025, before the market opens on Tuesday, Dec. 9, 2025.

Core & Main will host a conference call and webcast at 8:30 a.m. ET the same day to discuss the company's financial results. The live webcast will be accessible via the events calendar at ir.coreandmain.com. The conference call may also be accessed by dialing 833-470-1428 or +1-646-844-6383 (international). The passcode for the live call is 759718. To ensure participants are connected for the full call, please dial in at least 10 minutes prior to the start of the call.

An archived version of the webcast will be available immediately following the call. A slide presentation highlighting Core & Main's results will also be made available on the Investor Relations section of Core & Main's website prior to the call.

About Core & Main

Based in St. Louis, Core & Main is a leader in advancing reliable infrastructure® with local service, nationwide®. As a specialty distributor with a focus on water, wastewater, storm drainage and fire protection products and related services, Core & Main provides solutions to municipalities, private water companies and professional contractors across municipal, non-residential and residential end markets, nationwide. With more than 370 locations across the U.S., the company provides its customers local expertise backed by a national supply chain. The 5,700 associates at Core & Main are committed to helping their communities thrive with safe and reliable infrastructure. Visit coreandmain.com to learn more.

Cautionary Note Regarding Forward-Looking Statements

This press release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements include, without limitation, all statements other than statements of historical facts contained in this press release, including statements relating to our intentions, beliefs, assumptions or current expectations concerning, among other things, our future results of operations and financial position, business strategy and plans and objectives of management for future operations, including, among others, statements regarding expected growth, future capital expenditures, capital allocation and debt service obligations, and the anticipated impact on our business. Some of the forward-looking statements can be identified by the use of forward-looking terms such as "believes," "expects," "may," "will," "shall," "should," "would," "could," "seeks," "aims," "projects," "is optimistic," "intends," "plans," "estimates," "anticipates" or the negative versions of these words or other comparable terms.

Forward-looking statements are subject to known and unknown risks and uncertainties, many of which may be outside our control. We caution you that forward-looking statements are not guarantees of future performance or outcomes and that actual performance and outcomes, including, without limitation, our actual results of operations, financial condition and liquidity, and the development of the market in which we operate, may differ materially from those made in or suggested by the forward-looking statements contained in this press release.

Additional information concerning these and other factors can be found in our filings with the Securities and Exchange Commission. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the foregoing cautionary statements. All such statements speak only as of the date made and, except as required by law, we undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events, or otherwise.

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Investor Relations:

Glenn Floyd, 314-995-9108

InvestorRelations@CoreandMain.com

Media Relations:

Patrick Lunsford, 314-789-0726

Media@CoreandMain.com

Core & Main to Announce Fiscal 2025 Third Quarter Results