Mayville Engineering Company, Inc.

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements made pursuant to the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements relating to the grant to the underwriters of an option to purchase additional shares. Words such as “anticipate,” “estimate,” “expect,” “intend,” “plan,” “confident,” “prospects,” “project,” “continuing,” “ongoing,” “believe,” “intend,” “may,” “will,” “should,” “could,” and other similar words and expressions are intended to signify forward-looking statements. Forward-looking statements are not guarantees of future results and conditions, but rather are subject to various risks and uncertainties. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: the uncertainties related to market conditions and the completion of the public offering on the anticipated terms or at all and other factors discussed in the “Risk Factors” section of the preliminary prospectus supplement to be filed with the SEC, MEC’s Annual Report on Form 10-K filed with the SEC on March 4, 2026, and the risks described in other filings that MEC may make with the SEC. Should any risks or uncertainties develop into actual events, these developments could have material adverse effects on the company's business, financial condition and results of operations. MEC disclaims all obligations to update any forward-looking statements.