USA Truck Financial Results 2021

1) Operating income is calculated by deducting operating expenses (before intersegment eliminations) from operating revenue (before intersegment eliminations).

2) Adjusted operating income(a) is calculated by deducting operating expenses (before intersegment eliminations) excluding amortization of acquisition related intangibles, net of fuel surcharge revenue, from operating revenue (before intersegment eliminations), net of fuel surcharge revenue.

3) Operating ratio is calculated as operating expenses (before intersegment eliminations) as a percentage of operating revenue (before intersegment eliminations).

4) Adjusted operating ratio(a) is calculated as operating expenses (before intersegment eliminations) excluding amortization of acquisition related intangibles, net of fuel surcharge revenue, as a percentage of operating revenue (before intersegment eliminations) excluding fuel surcharge revenue.

5) Total miles include both loaded and empty miles.

6) Deadhead percentage is calculated by dividing empty miles by total miles.

7) Available tractors are a) all Company tractors that are available to be dispatched, including available unseated tractors, and b) all tractors in the independent contractor fleet.

8) In-service tractors include all of the tractors in the Company fleet (Company-operated tractors) and all the tractors in the independent contractor fleet.

9) Gross margin is calculated by deducting USAT Logistics purchased transportation expense from USAT Logistics operating revenue (before intersegment eliminations).

10) Gross margin percentage is calculated as USAT Logistics gross margin divided by USAT Logistics operating revenue (before intersegment eliminations).

Balance Sheet and Liquidity

As of December 31, 2021, total debt and finance lease liabilities was $144.8 million, total debt and finance lease liabilities, net of cash (excluding restricted cash) (“Net Debt”)(a) was $143.8 million. Net Debt(a) to Adjusted EBITDA(a) for the trailing twelve months ended December 31, 2021 was 1.9x, and the Company had $124.1 million available to borrow under its credit facility as of December 31, 2021.

Also, on January 31, 2022 the Company completed a $130.0 million asset backed credit facility that provides more predictable equipment valuation and increased borrowing capacity, as well as equipment financing arrangements that secure low cost fixed interest rates.

Fourth Quarter 2021 Conference Call Information

USA Truck will hold a conference call to discuss its fourth quarter 2021 results on Friday, February 4, 2022 at 8:00 AM CT / 9:00 AM ET. To participate in the call, please dial 1-888-506-0062 (Toll Free) or 1-973-528-0011 (International) and reference access code 114576. A live webcast of the conference call will be broadcast in the Investor Relations section of the Company’s website www.usa-truck.com, under the “Events & Presentations” tab of the “Investor Relations” menu. For those who cannot listen to the live broadcast, the presentation materials and an audio replay of the call will be available at our website, www.usa-truck.com, under the “Events & Presentations” tab of the ”Investor Relations” menu, or may be accessed using the following link: https://www.webcaster4.com/Webcast/Page/2611/44185. A telephone replay of the call will also be available for one year from the date of the call.

(a) About Non-GAAP Financial Information

In addition to our GAAP results, this press release also includes certain non-GAAP financial measures, as defined by the SEC. The terms “Base Revenue”, “Net Debt”, “Adjusted EBITDA”, “Adjusted operating ratio”, “Adjusted operating income”, “Adjusted net income”, and “Adjusted earnings per diluted share”, as we define them, are not presented in accordance with GAAP.

The Company defines Base Revenue as operating revenue less fuel surcharge revenue and intercompany eliminations. The Company defines Net Debt as total debt, including insurance premium financing and financing lease liabilities, net of cash. The Company defines Adjusted EBITDA as net income, plus interest expense net of interest income, provision for income tax expense, depreciation and amortization, and non-cash equity compensation. Adjusted operating ratio is calculated as operating expenses excluding amortization of acquisition related intangibles, net of fuel surcharge revenue, as a percentage of operating revenue excluding fuel surcharge revenue. Adjusted operating income is calculated by deducting operating expenses excluding amortization of acquisition related intangibles, net of fuel surcharge revenue, from operating revenue, net of fuel surcharge revenue. Adjusted net income is defined as net income excluding amortization of acquisition related intangibles plus or minus the income tax effect of such adjustments using a statutory tax rate. Adjusted earnings per diluted share is defined as Adjusted net income divided by the weighted average number of diluted shares outstanding during the period. The per-share impact of each item is determined by dividing it by the weighted average diluted shares outstanding. These financial measures supplement our GAAP results in evaluating certain aspects of our business. We believe that using these measures improves comparability in analyzing our performance because they remove the impact of items from our operating results that, in our opinion, do not reflect our core operating performance. Management and the board of directors focus on Base Revenue, Net Debt, Adjusted EBITDA,

Adjusted operating ratio, Adjusted operating income, Adjusted net income, and Adjusted earnings per diluted share as key measures of our performance and liquidity, each of which are reconciled to the most comparable GAAP financial measure and further discussed below. We believe our presentation of these non-GAAP financial measures is useful to investors and other users because it provides them the same information that we use internally for purposes of assessing our core operating performance.

These non-GAAP financial measures are not substitutes for their comparable GAAP financial measures, such as total revenue, total debt, net income, cash flows from operating activities, operating ratio, net income, diluted earnings per share, or other measures prescribed by GAAP. There are limitations to using non-GAAP financial measures. Although we believe that they improve comparability in analyzing our period to period performance, they could limit comparability to other companies in our industry if those companies define or calculate these measures differently. Because of these limitations, our non-GAAP financial measures should not be considered measures of income generated by our business or discretionary cash available to us to invest in the growth of our business. Management compensates for these limitations by primarily relying on GAAP results and using non- GAAP financial measures on a supplemental basis.

Pursuant to the requirements of Regulation G and Regulation S-K, we have provided reconciliations of Base Revenue, Net Debt, Adjusted EBITDA, Adjusted operating ratio, Adjusted operating income, Adjusted net income, and Adjusted earnings per diluted share to the most comparable GAAP financial measures at the end of this press release.

Cautionary Statement Concerning Forward-Looking Statements

Financial information in this press release is preliminary and based upon information available to the Company as of the date of this press release. As such, this information remains subject to the completion of our quarterly review procedures, and the filing of the related Annual Report on Form 10-K, which could result in changes, some of which could be material, to the preliminary information provided in this press release.

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. Such forward-looking statements are made pursuant to the provisions of the Private Securities Litigation Reform Act of 1995. These statements generally may be identified by their use of terms or phrases such as “seeks,” “expects,” “estimates,” “anticipates,” “projects,” “believes,” “hopes,” “plans,” “goals,” “intends,” “may,” “might,” “likely,” “will,” “should,” “would,” “could,” “potential,” “predict,” “continue,” “strategy,” “future” and terms or phrases of similar substance. In this press release, statements relating to progress towards our strategic vision and goals, as well as our future mix of asset light and asset heavy revenues are forward-looking statements. Forward-looking statements are based upon the current beliefs and expectations of our management and are inherently subject to risks and uncertainties, including the impacts and duration of the COVID-19 pandemic. In addition, there are other risks, some of which cannot be predicted or quantified, which could cause future events and actual results to differ materially from those set forth in, contemplated by, or underlying the forward-looking statements. Accordingly, actual results may differ materially from those set forth in the forward-looking statements. Readers should review and consider the factors that may affect future results and other disclosures by the Company in its press releases, Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and other filings with the Securities and Exchange Commission. Any forward-looking statement speaks only as of the date on which it is made. We disclaim any obligation to update or revise any forward-looking statements to reflect actual results or changes in the factors affecting the forward-looking information, except as required by law. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this press release might not occur. All forward-looking statements attributable to us, or persons acting on our behalf, are expressly qualified in their entirety by this cautionary statement.

References to the “Company,” “we,” “us,” “our” and words of similar expression refer to USA Truck Inc. and its subsidiaries.

About USA Truck

USA Truck provides comprehensive capacity solutions to a broad and diverse customer base throughout North America. Our Trucking and USAT Logistics divisions blend an extensive portfolio of asset and asset-light services, offering a balanced approach for our customers’ supply chain management, including customized truckload, dedicated contract carriage, intermodal and third-party logistics freight management services. For more information, visit usa-truck.com or usatcapacitysolutions.com.

This press release and related information will be available to interested parties at our investor relations website, http://investor.usa-truck.com.