Colusa Biomass Energy signs agreement to develop biorefinery

News release posted Dec. 12, 2007, at 12:27 p.m. CST

Colusa Biomass Energy Corporation, a biomass-to-energy company focusing on bio-fuels for transportation, announced today that an agreement has been reached with BBI International of Salida, Colorado. The agreement designates BBI International as the designer and developer of a proprietary state-of-the-art biorefinery.

BBI International is a company committed to providing the most thorough feasibility studies in the business. Its team of engineers and market specialists has an intimate understanding of bioenergy and agricultural processing research and analysis, through decades of hands on experience. Ethanol and biodiesel projects are at the core of its workload and expertise. BBI International clients include future producers, existing producers, state and federal agencies, and independent research groups.

"We are thrilled to be working with Colusa Biomass on this exciting project. Our Process Engineering Team is second to none in understanding cellulose-to-ethanol technology and implementing viable solutions in the near term," says Mark Yancey, Vice President of BBI Project Development. "Together with Colusa we will develop a technology package that will be implemented on a global scale to produce clean, renewable bio-ethanol."

"This agreement places Colusa Biomass on the leading edge of cellulosic bio-refinery development. This proprietary design will incorporate the most current developments in systems for the refining of ethanol from agricultural harvest residues such as straw and agricultural wastes," stated Colusa Biomass CEO Tom Bowers. "By using harvest waste, nothing is taken from the food supply. When this production model is implemented in the United States, agricultural residues and wastes will be available for refining ethanol to meet the needs of worldwide transportation."

Colusa Biomass recently announced that it is featured on, the multimedia investor relations source that seeks out promising and undiscovered companies in the market place and enables clients to utilize multimedia marketing to gain exposure through today's information highway.

About BBI International

BBI International is a renewable energy service firm that offers engineering, project development and project feasibility studies to clients worldwide. BBI also publishes Ethanol Producer Magazine, Biodiesel Magazine, and Biomass Magazine, as well as renewable energy publications in Canada and Australia. Each year, the world class BBI event planning team organizes many of the largest and most important biofuels and biomass conferences.

About Colusa Biomass Energy Corporation

Colusa Biomass Energy Corporation is located in the heart of the Sacramento Valley's rice producing area. Colusa Biomass Energy Corporation will produce ethanol, silica/sodium oxide and lignin from waste rice straw, waste rice hulls and other cellulosics. The Colusa facility will consume approximately 130,000 tons of waste biomass annually, producing 12.5 million gallons of ethanol and 16,800 tons of silica/sodium oxide. Additional information can be obtained at the website:

Safe Harbor: Forward-looking statements in this release are made pursuant to the "Safe Harbor" provisions of the Private Securities Litigation Reform Act of 1995. Investors are cautioned that such forward-looking statements involve risks and uncertainties, including, without limitation, continued acceptance of the company's products, increased levels of competition for the company, new products and technological changes, the company's dependence upon third-party suppliers, intellectual property rights and other risks.

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Colusa Biomass Energy Corp.
BBI International