Centrex Appoints First Montauk Securities Corp.

Business Editors & Health/Medical Writers

TULSA, Okla.--(BUSINESS WIRE)--Nov. 15, 2002

Centrex (OTCBB:CNEX) today announced the appointment of First Montauk Securities Corp., wholly owned subsidiary of First Montauk Financial Corp.(OTCBB:FMFK) as the Company's financial advisor.

First Montauk Securities Corp. is a member NASD/SIPC, and a national full service investment banking and brokerage operation offering an extensive broker network of financial professionals across North America in over 150 offices.

"Knowing how to avoid a bioterrorism catastrophe is not enough to win the war on terrorism," said Centrex CEO Dr. Coughlin. "We must actively and rapidly develop these advanced technologies into products that will become powerful weapons against terrorists. The unthinkable now seems inevitable and preparation is our only defense. Centrex is currently developing a system designed to provide almost instantaneous detection of biological agents that might be used against our citizens. Biodefense is everyone's responsibility."

Dr. Coughlin has also recently been appointed Acting Director of the Homeland Defense Technology Council (HDTC), which serves as a resource to government and industry on homeland defense technology issues.

"Centrex's technologies are designed to improve early detection of biological agents, which will play a significant role in increased survival rates if there is a biological terrorist attack," said Director of Corporate Finance for Montauk Financial Group(SM), Ernest Pellegrino. "We believe that Centrex Inc. is at the forefront of developments that will be vital to our security, protection and defense on a global scale."

Centrex, Inc. is a development stage company that owns the exclusive worldwide license to develop, manufacture and market a system for detecting microbial contamination in air, food and water. The detection system is designed to be adaptable and easily tailored to detect a variety of bacterial or viral organisms by recognizing the unique DNA fingerprint of the organism. The proposed device is a simultaneous multi-channel detection system that is compact, fully automated and capable of monitoring the presence of biological agents in air, food and water. The Centrex website is www.centrexcorporation.com or call Centrex Investor Relations at 585/216-2072.

Montauk Financial Group is a service mark of First Montauk Securities Corp., Member NASD/SIPC. First Montauk Financial Corp. is the parent company of First Montauk Securities Corp., a registered securities broker/dealer headquartered in Red Bank, NJ, with approximately 60,000 retail and institutional accounts. The Company offers quality support services, in-house and third party research, advanced networked information systems and has attracted approximately 400+ financial professionals across the country. Additional information is available at the Company's website at www.montaukfinancial.com.

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.