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Recognized by the Guardian and Cleantech Group for potential and likelihood to achieve high growth and high market impact

Boston, MA 鈥� September 16, 2009 鈥� Ze-gen, Inc., a clean energy company developing advanced gasification technology to convert waste streams into synthesis gas, today announced it has been named a Global Cleantech 100 company by Guardian 蘑菇视频APP and Media and Cleantech Group鈩�, LLC, providers of leading research, events and advisory services for the cleantech ecosystem.

The Global Cleantech 100 is the first ever list highlighting the most promising private clean technology companies around the world. Supported by the Carbon Trust, the Global Cleantech 100 recognizes companies at the forefront of cleantech innovation offering solutions to some of the world鈥檚 most pressing environmental challenges.

The final list represents the collective opinion of hundreds of leading experts from cleantech innovation and venture capital companies in EMEA, North America, India and China, combined with the specific input of an expert panel of 35, drawn from well-respected organizations such as Altira Group, Crossover Advisors, Deloitte, Emerald Technology Ventures, Google, Kleiner Perkins Caulfield & Byers, New York Stock Exchange, NGEN Partners, Nth Power, New Enterprise Associates, Sterling Communications, Tsing Capital and Vantage Point Venture Partners.

The panel鈥檚 views were combined with insights from the Cleantech Network鈩�, the de facto industry association of international clean technology investors, entrepreneurs, large corporations and other industry insiders. Some 3,500 companies were nominated/considered.

鈥淭he first ever Global Cleantech 100 shines a spotlight on which companies and which technology areas the global innovation community is most excited about from a commercial standpoint,鈥� said Richard Youngman, managing partner at Cleantech Group.

鈥淲e are thrilled to be recognized by the Cleantech Network and Guardian 蘑菇视频APP and Media,鈥� said Bill Davis, CEO of Ze-gen. 鈥淎s we continue our commitment to the development of an innovative technology that will process waste into renewable energy, helping to curb climate change and lessen our dependence on fossil fuels, we thank Cleantech Group for recognizing Ze-gen鈥檚 commitment to clean technology.鈥�

More than half (56) of the companies listed on the Global Cleantech 100 are headquartered in North America, while European firms make up 36 percent. Five firms are based in Israel and three in India. The full list of Global Cleantech 100 firms is available on the and websites.

About Ze-gen, Inc. Ze-gen, Inc. is a renewable energy company that is emerging as a leader in the development of advanced gasification technology for converting wood debris and other solid waste streams into a synthesis gas (syngas) mixture of carbon monoxide and hydrogen gas. This syngas is a renewable fuel which can be used to offset consumption of fossil fuels in conventional power and industrial facilities. Ze-gen recently secured $24 million in Series B financing, and is poised to be the market leader in the environmentally friendly re-purposing of waste streams into renewable energy. For more information and to watch a Ze-gen feature on the Science Channel, visit .

About the Cleantech Group, LLC

The Cleantech Group pioneered the clean technology investment category in 2002. Today, it accelerates the development and market adoption of clean technologies globally. The company鈥檚 worldwide network of investors, entrepreneurs, enterprises, service providers and others鈥攔epresenting trillions of dollars in assets鈥攔eceives access to capital, investment deal flow, networking, market leading research and data, sales leads and promotional opportunities. The Cleantech Group also provides advisory services for large corporations and governments, publishes leading cleantech sector industry news coverage and produces the premier Cleantech Forum庐 events worldwide. Details are available at .

About the Guardian

The Guardian is a unique voice with an international reach delivering progressive journalism to a global audience. The Guardian's vision is to be the leader on sustainability within the media industry and to be environmentally regenerative in their activities. Through their editorial coverage and business activities, they demonstrate to readers, staff, advertisers, suppliers and their communities that GNM (Guardian 蘑菇视频APP and Media) is committed to enhancing society's ability to build a sustainable future.

Contact:

Elizabeth Enderle 617.674.2443 eenderle@ze-gen.com