Dynamex Honored By Sears ``Partner in Progress Award''.

Business Editors

DALLAS--(BUSINESS WIRE)--April 20, 2004

Dynamex Inc. (Amex: DDN), a leading provider of same-day transportation and logistics services in the United States and Canada, has been recognized as a 2003 Sears, Roebuck and Co. Partner in Progress for the second consecutive year.

Founded more than two decades ago, the Partners in Progress program honors exceptional suppliers that make significant contributions to the growth of Sears businesses and creates new ways to better serve Sears customers.

"We are thrilled to be acknowledged by Sears as a recipient of the Partners in Progress award," said Rick McClelland, President and CEO of Dynamex. "Dynamex strives each and every day to provide our customers with results oriented service. This award is a testament to our commitment to operational excellence and proactive communication."

"Dynamex has been a great partner," says Tony Brooks, Vice President of Sears Logistics Services, Inc. (SLS). "Having worked with SLS as a partner servicing Sears Product Repair Group, Dynamex has exceeded our expectations in executing and planning our service solution. They have also offered several improvements in productivity, costs, service and customer satisfaction."

Recipients were recognized at the 21st Annual Partners in Progress event held at Sears World Headquarters on April 13, 2004 hosted by Sears Chairman and CEO Alan J. Lacy.

In November 2003, Dynamex announced a significant expansion in services with SLS. "Sears has been a wonderful partner for Dynamex," said McClelland. "The commitment to exceptional customer service is a top priority for both companies. As we work together to enhance technology and provide innovative solutions, our goal is to always provide excellent service that exceeds Sears' expectations."

About Dynamex

Dynamex is a 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(R), is available at www.dynamex.com.

About Sears, Roebuck and Co.

Sears, Roebuck and Co. (NYSE: S) is a broadline retailer business. The company offers its wide range of apparel, home and automotive products and services to families in the U.S. through Sears stores nationwide, including approximately 870 full-line stores. Sears also offers a variety of merchandise and services through its Web sites, sears.com and landsend.com, and a variety of specialty catalogs.

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.