Disclosure This communication contains “forward-looking statements,” within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995 that provides a safe harbor for forward-looking statements, including statements relating to the completion of the transaction, all statements that do not relate solely to historical or current facts, and expectations, intentions or strategies regarding the future. These forward-looking statements are generally denoted by the use of words such as “anticipate,” “believe,” “expect,” “intend,” “aim,” “target,” “plan,” “continue,” “estimate,” “project,” “may,” “will,” “should,” “could,” “would,” “predict,” “potential,” “ongoing,” “goal,” “can,” “seek,” “designed,” “likely,” “foresee,” “forecast,” “project,” “hope,” “strategy,” “objective,” “mission,” “continue,” “outlook,” “potential,” “feel,”  and similar expressions. However, the absence of these words or similar expressions does not mean that a statement is not forward-looking. Statements in this announcement that are forward looking may include, but are not limited to, statements regarding the benefits of the proposed transaction with U.S. Xpress (“USX”) and the associated integration plans, expected synergies and revenue opportunities, expected branding, anticipated future operating performance and results of Knight-Swift (“KNX”), including statements regarding anticipated earnings, margins, and cash flows, anticipated future liquidity, anticipated availability of future resources, financial or otherwise, anticipated growth opportunities, anticipated fleet size, the availability of the merger consideration, the expected management and governance of U.S. Xpress following the transaction and the expected timing of the closing of the proposed transaction and other transactions contemplated by the proposed transaction. By their nature, all forward-looking statements are not guarantees of future performance or results and are subject to risks and uncertainties that are difficult to predict and/or quantify. Such risks and uncertainties include, but are not limited to: the occurrence of any event, change or other circumstance that could give rise to the right of Knight-Swift or U.S. Xpress or both of them to terminate the proposed transaction, including circumstances requiring U.S. Xpress to pay Knight-Swift a termination fee pursuant to the merger agreement; the failure to obtain applicable regulatory or U.S. Xpress stockholder approval in a timely manner or otherwise; the risk that the transaction may not close in the anticipated timeframe or at all due to one or more of the other closing conditions to the transaction not being satisfied or waived; the risk that there may be unexpected costs, charges or expenses resulting from the proposed transaction; risks related to the ability of Knight-Swift and U.S. Xpress to successfully integrate the businesses and achieve the expected synergies and operating efficiencies within the expected timeframes or at all and the possibility that such integration may be more difficult, time consuming or costly than expected; risks that the proposed transaction disrupts Knight-Swift’s or U.S. Xpress’ current plans and operations; the risk that certain restrictions during the pendency of the proposed transaction may impact Knight-Swift’s or U.S. Xpress’ ability to pursue certain business opportunities or strategic transactions; risks related to disruption of each company’s management’s time and attention from ongoing business operations due to the proposed transaction; continued and sufficient availability of capital and financing; the risk that any announcements relating to the proposed transaction could have adverse effects on the market price of Knight-Swift’s and/or U.S. Xpress’ common stock or operating results; the risk that the proposed transaction and its announcement could have an adverse effect on the ability of Knight-Swift and U.S. Xpress to retain and hire key personnel, to retain customers and to maintain relationships with each of their respective business partners, suppliers and customers and on their respective operating results and businesses generally; the risk of litigation that could be instituted against the parties to the Merger Agreement or their respective directors, affiliated persons or officers and/or regulatory actions related to the proposed transaction, including the effects of any outcomes related thereto; risks related to changes in accounting standards or tax rates, laws or regulations; risks related to unpredictable and severe or catastrophic events, including but not limited to acts of terrorism, war or hostilities (including effects of the conflict in Ukraine), cyber-attacks, or the impact of the COVID-19 pandemic or any other pandemic, epidemic or outbreak of an infectious disease in the United States or worldwide on Knight-Swift’s or U.S. Xpress’ business, financial condition and results of operations, as well as the response thereto by each company; and other business effects, including the effects of industry, market, economic (including the effect of inflation), political or regulatory conditions. Also, Knight-Swift’s and U.S. Xpress’ actual results may differ materially from those contemplated by the forward-looking statements for a number of additional reasons as described in Knight-Swift’s and U.S. Xpress’ respective SEC filings, including those set forth in the Risk Factors section and under any “Forward-Looking Statements” or similar heading in Knight-Swift’s or U.S. Xpress’ respective most recently filed Annual Report on Form 10-K for the year ended December 31, 2022 and Knight-Swift’s and U.S. Xpress’ Current Reports on Form 8-K. You are cautioned not to place undue reliance on Knight-Swift’s or U.S. Xpress’ forward-looking statements. Knight-Swift’s or U.S. Xpress’ respective forward-looking statements are and will be based upon each company’s management’s then-current views and assumptions regarding Knight-Swift’s proposed transaction with U.S. Xpress, future events and operating performance, and are applicable only as of the dates of such statements. Neither Knight-Swift nor U.S. Xpress assumes any duty to update or revise forward-looking statements, whether as a result of new information, future events, uncertainties or otherwise. If the proposed transaction is consummated, U.S. Xpress’ stockholders (other than the rollover holders) will cease to have any equity interest in U.S. Xpress and will have no right to participate in its earnings and future growth. 2