March 12, 2003

News Release: U.S. Patent and Trademark Office Removes Secrecy Orders From HiEnergy Technologies'Patent Applications for Supersenzor

HiEnergy Technologies, Inc. (OTC Bulletin Board: HIET) today announced that the U.S. Patent and Trademark Office (USPTO), in response to HiEnergy's petition, rescinded secrecy orders from patent application for the 'atometer,' (commercial name: SUPERSENZOR), with the authorization of the U.S. Army.

'This opens up the world markets for our Megasenzor and Supersenzor,'said Dr. Bogdan Maglich, Chairman and Chief Scientist. 'We now can accept Purchase Orders from abroad which we weren't even able to discuss with foreign customers since last November. Recently, we were offered good opportunities to promote our product in Asia.' In November 2002, HiEnergy Technologies, Inc., received seven Secrecy Orders pursuant to 37 C.F.R. subsection 5.2 from the U.S. Patent and Trademark Office (USPTO) with regard to its U.S. patent applications and PCT applications. The Secrecy Orders impacted pending patent applications 09/788,736 and 09/883,851. These patent applications were identified by the U.S. Army as containing subject matter classifiable at the level of 'SECRET.' Under a Secrecy Order, the subject matter of an application may not be published or disclosed except as specifically authorized pursuant to 37 C.F.R. subsection 5.5. Six of the Secrecy Orders were issued on October 18, 2002 and one was issued on October 22, 2002.

HiEnergy petitioned for rescission of the Secrecy Orders on the grounds that identical patent applications were submitted to European and Japanese Patent Offices as far back as 1999 which, in turn, had already made them public prior to the issuance of the Secrecy Orders.

'The advantage of foreign sales of Megasenzor and Supersenzor series is that it will allow us to sell early commercial prototypes, known as 'Beta models', in Asia, the Middle East, and some European countries, and thereby accumulate the experience required for U.S. certification,'said Dr. Maglich.

ABOUT HIENERGY TECHNOLOGIES, INC.

HiEnergy Technologies, Inc. has developed patent pending stoichiometric explosive detection technology that remotely determines the chemical formula of concealed substances, including explosives, biological weapons, and illegal drugs. 'Stoichiometric'means detection that deciphers the chemical formula of unknown substances through barriers in a short period of time. The systems HiEnergy is developing have applications in several markets, including airport security screening, bio-weapons detection, landmine detection, and contraband detection, in addition to chemical and petrochemical industry applications. HiEnergy's technology has been developed through several years of research and under grants from the Department of Defense and the US Customs agency. The shares of the company are publicly traded under the symbol HIET.

FORWARD-LOOKING STATEMENT

The matters discussed in this press release may contain 'forward-looking statements'(as such term is defined in the Private Securities Litigation Reform Act of 1995). These statements can be identified by the use of forward- looking terminology such as 'believes,''could,''plans,''expects,''may,' 'will,''intends,''should,'or 'anticipates'or the negative thereof or other variations thereon or comparable terminology, or by discussions of strategy that involve risks and uncertainties. The safe harbor provisions of Section 21E of the Securities Exchange Act or 1934, as amended, and Section 27A of the Securities Act of 1933, as amended, apply to forward-looking statements made by HiEnergy Technologies, Inc. You should not place undue reliance on forward- looking statements. Forward-looking statements involve risks and uncertainties. The actual results that HiEnergy Technologies, Inc. achieves may differ materially from any forward-looking statements due to such risks and uncertainties. These forward-looking statements are based on current expectations, and HiEnergy Technologies, Inc. assumes no obligation to update this information. Readers are urged to carefully review and consider the various disclosures made by HiEnergy Technologies, Inc. in its reports filed with the Securities and Exchange Commission that attempt to advise interested parties of the risks and factors that may affect its business.

For further information, please contact HiEnergy Corporate Communications, +1-866-642-6267.

SOURCE HiEnergy Technologies, Inc.

HiEnergy Corporate Communications, +1-866-642-6267 (HIET)

WEBSITE This email address is being protected from spambots. You need JavaScript enabled to view it.