Los Angeles, CA - April 17, 2007 -- (OTC BB; MTTG.OB - News) Material Technologies, Inc. ("MATECH" or "the Company") was retained by the New Jersey Department of Transportation (NJDOT) to inspect the Manahawkin Bay Bridge, a steel girder bridge, using its Electrochemical Fatigue Sensor (EFS) system.  This structure is the only bridge traversing the Manahawkin Bay providing access to Long Beach Island, and has previously documented cracks at fatigue sensitive details.  The overriding purpose for utilizing EFS as an inspection tool at this bridge was to help NJDOT prioritize the repair or replacement of the cracked members by determining the growth activity of existing cracks, and in some cases determining the existence of cracks not yet visually detectable.

During the inspections the EFS system was installed at visually identified cracks, areas adjacent to crack repair locations, and at additional locations that exhibited similar fatigue-prone details as those already showing cracks.  The EFS data analysis was used to determine whether the documented fatigue cracks were still growing under ambient traffic flow.  In some cases the objective was to determine the effectiveness of previous remediation efforts.  Additionally, MATECH inspected some geometrically similar locations, which had not been documented as cracked, to determine whether cracking had developed in those areas.

Using the EFS system, it was determined that some of the existing cracks were continuing to grow while others which had been arrested by drill stops were not exhibiting active growth.  In addition, actively growing cracks that had not previously been documented were identified with the EFS system.  This will allow the agency to make repairs at these locations before they become more expensive problems, to more effectively deploy funds.

MATECH CEO Robert M. Bernstein commented: "We are extremely pleased to demonstrate our EFS to the NJDOT. I am confident that the EFS will help the State to detect growing cracks in their steel bridges, greatly increasing their transportation infrastructure safety and to realize cost savings in their bridge maintenance budgets."

About Material Technologies, Inc. (MTTG.OB)

MATECH is an engineering, research and development company specializing in technologies to measure microscopic fractures and flaws in metal structures and monitor metal fatigue in real time. The company’s leading edge metal fatigue detection, measurement and monitoring solutions can accurately test the integrity of metal structures and equipment including bridges, railroads, airplanes, ships, cranes, power plants, mining equipment, piping systems and heavy iron.

MATECH owns the only non-destructive testing technology able to find growing cracks as minute as 0.01 inches—critical information that allows structural engineers to isolate and repair the more than 100,000 steel bridges in the U.S. which have been classified as structurally deficient or functionally obsolete by the Federal Highway Administration. MATECH has exclusive rights to seven patents along with $8.3 million in already completed contracts from the US Government for research, testing and validation of its innovative solutions.

To hear more about MTNA from CEO/President Robert M. Bernstein go to:
http://www.publiccoreport.net/featured/MTNA/company.asp

Forward-Looking Statements:

Except for the historical information contained herein, the matters discussed in this press release are forward-looking statements. Such statements are indicated by words or phrases such as "believe," "will," "breakthrough," "significant," "indicated," "feel," "revolutionary," "should," "ideal," "extremely" and "excited." These statements are made under "Safe Harbor" provisions of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those described in forward-looking statements and are subject to risks and uncertainties. See the Company's filings with the Securities and Exchange Commission including, without limitation, the Company's recent Form 10-K and Form 10-Qs, which identify specific factors that may cause actual results or events to differ materially from those described in the forward-looking statements.

Contact:

Robert M. Bernstein
Material Technologies, Inc.
1.310.208.5589
matech@matechcorp.com