Centrex CEO Named to Board of Homeland Defense Technology Council.

Business Editors & Health/Medical Writers

Centrex, Inc. (OTCBB:CNEX) today announced that Dr. Thomas R. Coughlin, Jr., the Company's CEO, has been named to the Board of the Homeland Defense Technology Council (HDTC).

The HDTC is a non-profit organization whose purpose is to advise government, business and the public on homeland defense technology issues. The HDTC is comprised of representatives from both the public and private sectors who will assist in coordinating local, state and federal efforts to acquire and utilize new and innovative technologies for the Homeland Defense.

As a Director for the Council, Dr. Coughlin will be involved in initiating peer review processes and helping establish industry standards for biodetection devices, in cooperation with the Interagency Board for Equipment Standardization and Interoperability, as well as other agencies.

Dr. Coughlin has also been named as the Council's Washington liaison, and as such, will be a direct representative to the Federal Government for the HDTC. He will also continue in his duties as CEO of Centrex, Inc. Howard C. Coleman, Executive Director of the HDTC said, "We are very pleased to have Dr. Coughlin's active participation in the HDTC because of his experience with the government in commercializing advanced technologies."

Centrex, Inc., an Oklahoma Corporation, is a development stage company organized in 1998 to identify and commercialize proprietary systems for the detection of biological contaminants in food, air and water.

For more information, visit the Centrex website at www.centrexcorporation.com or call Investor Relations at [phone] or e-mail Jefferey Stone at Crescent Fund, Inc. at [e-mail].

This press release contains some forward-looking statements. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Forward-looking statements in this document should be evaluated together with the many uncertainties that affect our business. Those uncertainties are discussed in the Company's SEC filings.