Bion Environmental Technologies, Inc. Announces Its Securities To Be Traded On The Philadelphia Stock Exchange.

Business Editors

NEW YORK--(BUSINESS WIRE)--Aug. 21, 2002

Bion Environmental Technologies, Inc. (PHLX:BNO)(OTCBB:BNET) announced today its shares have begun trading on the Philadelphia Stock Exchange under the symbol, BNO. Its specialist is F. S. Martin & Co. Shares of the Company will also continue to be traded on the OTC BB under the symbol, BNET. Bion's listing on the Philadelphia Stock Exchange, which is a recognized national exchange, removes Bion's common stock from being considered a "Penny Stock." Accordingly, trading of our shares is no longer subject to the Penny Stock rules.

Larry Danziger, the Company's Chief Financial Officer, stated, "The additional venue of the Philadelphia Stock Exchange for the Company's shares gives us greater exposure and makes it easier for investors to invest in the Company."

About Bion: Founded in 1989, Bion provides waste management solutions to agriculture, focusing on livestock waste from confined animal feeding operations (CAFOs), such as large dairy and hog farms. Bion has invested 13 years and $40 million into developing the state-of-the-art Bion NMS in response to this need. The Bion NMS is a proprietary and patented waste treatment system that remediates animal waste in a manner that is both economical and consistent with existing and proposed environmental regulatory requirements. The Bion NMS also serves as a platform that is able to incorporate other waste treatment technologies, enabling those technologies to be implemented more efficiently than if they were installed and operated independently. Because it is a platform, Bion's NMS is capable of generating revenue not only from the products and services it produces (waste removal), soil production and potentially environmental credits, but also from technologies that are integrated into the platform (anaerobic digestion, which produces energy; and membrane filtration, which produces reusable water).

This material includes forward-looking statements based on management's current reasonable business expectations. In this document, the words "anticipates," "will," "can," and similar expressions identify certain forward-looking statements. These statements are made in reliance on the Private Securities Litigation Reform Act, Section 27A of the Securities act of 1933, as amended. There are numerous risks and uncertainties that could result in actual results differing materially from expected outcomes. The material should be read in conjunction with the Company's current annual and quarterly reports filed with the SEC, which contain discussions of currently known factors that could significantly impact the Company's future expectations.