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Dynamex Announces Fiscal 2010 Third Quarter Earnings Release And Conference Call Schedule

May 20, 2010 — Dallas, Texas — Dynamex Inc. (NASDAQ: DDMX), a leading provider of same-day delivery and logistics services in the United States and Canada, will release its FY 2010 third quarter financial results on Wednesday, June 2, 2010, after the close of the market. The Company will host an investor conference call on Thursday, June 3, 2010, at 9:00 a.m. Central Time. James Welch, President and CEO along with Ray Schmitz, Executive Vice-President and CFO, will present results and be available to answer questions. All interested parties may access the call Toll-Free at 1-877-407-0784. Participants will need the following information to access the conference call: Company name – ―Dynamex.‖ A telephone replay of the conference call will be available Toll-Free through June 10, 2010, at 1-877-660-6853, enter Account Number 3055 and Conference ID Number 350491.

The conference call will also be available on the Internet through Thomson’s website, located at www.earnings.com, and the link is available through the Company’s website at www.dynamex.com . To listen to the live call, please go to the website at least fifteen minutes early to register, download and install any necessary audio software. For those who cannot listen to the live broadcast, an Internet replay will be available shortly after the call for 30 days.

For further information contact:
Ray Schmitz, Executive Vice President & CFO
214-560-9308
[email protected]

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Dynamex is the leading provider of same-day delivery and logistics services in the United States and Canada. Additional press releases and investor relations information as well as the Company’s Internet e-commerce services package, dxNow™, is available at www.dynamex.com .

This release contains forward-looking statements that involve assumptions regarding Company operations and future prospects. Although the Company believes its expectations are based on reasonable assumptions, such statements are subject to risk and uncertainty, including, among other things, the effect of changing economic conditions, acquisition strategy, competition, foreign exchange, the ability to meet the terms of current borrowing arrangements, and risks associated with the local delivery industry. These and other risks are mentioned from time to time in the Company’s filings with the Securities and Exchange Commission. In light of such risks and uncertainties, the Company's actual results could differ materially from such forward-looking statements. The Company does not undertake any obligation to publicly release any revision to any forward-looking statements contained herein to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Caution should be taken that these factors could cause the actual results to differ from those stated or implied in this and other Company communications.