CleanTech Biofuels

Aurora Initiates Equity Research Coverage on CleanTech Biofuels (CLTH.OB)

SAN DIEGO, CA--(Marketwire - June 23, 2008) - Aurora Equity Research, a division of Aurora Venture Communications Group (Aurora), has initiated research coverage of CleanTech Biofuels, Inc. (OTCBB: CLTH), the developer of revolutionary waste-to-energy cellulosic ethanol technology systems.

In the report, Aurora Equity Research analyses identify a huge market both domestically and internationally with positive and fast growing trends reflecting strong growth of the industry.

The U.S. biofuel market trends have shown that the biofuel industry in the U.S. is growing at the rate of about 40-50% annually. The annual increase in global biofuel demand is predicted to be about 20% per year and will reach about 28.3 billion gallons in 2011*. CleanTech Biofuels' combination of technologies allows it to take municipal solid waste (that the company is paid to accept) and process it into ethanol fuel. According to the EPA, Americans produce an estimated 229 million tons of Municipal Solid Waste ("MSW") annually. At the estimated conversion rate using the CleanTech's technologies [52 gallons of ethanol per ton of MSW] the annual production of MSW represents a potential fuel source of over 6.5 billion gallons of ethanol per year.

U.S. Department of Energy Secretary Samuel Bodman has stated that his Department had set two important goals for biofuels. The first is to make cellulosic ethanol a practical and cost-effective alternative to gasoline by the year 2012. The second is to displace 30% of our current consumption of gasoline with biofuels by the year 2030. He further added that in order to reach this 30 by 30 goal, America must raise its production of biofuels from the current level of five billion gallons a year to 60 billion gallons a year. He pointed out that the Department of Energy was very interested in cellulosic ethanol because it seems to have the greatest near-term promise. Vehicles on the road today can use a blend of up to 10% ethanol with gasoline without voiding the warranty the manufacturer provides to consumers. There are also about 5 million vehicles on the road today that have been built to use up to 85% ethanol + 15% gasoline (known as E-85).

The full report illustrates rapidly growing demand due the current market climate with benefits to both investors and the environment alike. CleanTech Biofuels has a speculative buy rating with a $2.99-$3.99 twelve month target price. The equity research analysis demonstrates CleanTech Biofuels as well poised to address growing demand through the production of a clean, renewable fuel reducing our country's dependency on foreign oil without adverse effects to our environment or economy. The Company sees financial opportunities and benefits from tipping fees, process license fees, tax incentives and credits, and from resultant ethanol fuel product. To download the complete version of the report please visit: http://www.avcg.net/clth.

About CleanTech Biofuels, Inc.

CleanTech Biofuels, Inc. is developing a set of technologies that, when combined, are capable of converting municipal solid waste into ethanol. Their unique technology package positions them to be the industry leader in using municipal solid waste (MSW) as the primary feedstock for energy production. Municipal Biorefineries developed with our technology will:

* Reduce the costs of transporting waste long distances for disposal.
* Dramatically reduce pollution released the disposal of municipal solid waste.
* Reduce the amount of material going into landfills by as much as eighty five percent.
* Increase the amount of recyclable materials that can be recovered from municipal solid waste.
* Generate biofuels and other usable energy products at competitive prices.

By using the existing infrastructure for municipal solid waste collection and disposal to collect biomass at a low or negative feedstock cost, CleanTech will achieve profitability quickly relative to other cellulosic ethanol producers who must develop their infrastructure to collect and transport more expensive feedstocks such as switchgrass, wood waste, or corn stover. Moreover, biomass derived from garbage will not be subject to increases in commodity prices that plague producers currently manufacturing ethanol from corn. If you would like to receive e-mail announcements about CleanTech Biofuels, Inc., additional information, or to contact a representative directly, please visit us on the web at http://www.cleantechbiofuels.net or www.avcg.net/CLTH.

About Aurora Equity Researchâ„¢

Aurora Venture Communications Group, LLC (AVCG) is a specialist research and consulting firm tracking emerging small-cap equities providing triple bottom line (social, environmental and financial) returns. AVCG's mission is to communicate informative qualitative and quantitative research on technological, regulatory, and competitive trends in the global emerging energy and microfinance sectors. We are dedicated to tracking market segments on the cusp of change -- those that are the fastest growing, the fastest changing, and most impacted by technology advances, regulatory trends, market trends, and industry re-structuring.

Our clients, who may include some of the world's fastest growing corporations and technology vendors who seek our informed, objective view to analyze and articulate their competitive landscape and prospects for success in these fast developing markets. AVCG invests 1% of revenues in microfinance ventures dedicated to social change. To view the full version of this report, including investment conclusion and target price, visit Aurora Equity Research Community online at http://www.avcg.net/CLTH or call 1-858-926-5527

Aurora Equity Research Disclosure:

The analysts contributing to this report do not hold any shares of vision CleanTech Biofuels, Inc. (CLTH.OB) Additionally the analysts contributing to this report certify that the views expressed herein accurately reflect the analysts' personal views as to the subject securities and issuers. The analyst(s) writing this report recognize and aspire to all of the CFA Institute Guidelines for Independent Research. Aurora Venture Communications Group, LLC certifies that no part of the analysts' compensation was, is, or will be, directly related to the specific recommendation or views expressed by the analysts in the report. Aurora Venture Communications Group and its affiliates have been directly compensated a total of $30,000 directly from a non controlling third party for enrollment of CLTH in its services. This report is based on data obtained from sources we believe to be reliable, but is not guaranteed as to accuracy and does not purport to be complete. As such, the report should not be construed as advice designed to meet the particular investment needs of any investor. Any opinions expressed herein are subject to change.

Safe Harbor:

This release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The risks and uncertainties that may affect the operations, performance development, and results of the Company's business include but are not limited to fluctuations in financial results, availability and customer acceptance of our products and services, the impact of competitive products, services and pricing, general market trends and conditions, and other risks detailed in the Company's SEC reports.

* Cleveland-based industry research firm The Freedonia Group finds in a study entitled World Biofuels. Lippert Heilshorn& Associates, Inc.
Amy Gibbons/Jody Burfening
212-838-3777
agibbons@lhai.com