Cleantech Biofuels, Inc., a development stage company, focuses on providing cellulosic biomass derived from municipal solid waste (MSW) in the United States and Canada. It intends to design and build a biomass recovery plant to offer biomass feedstock for producing energy and other chemical products; and provide recyclables, such as metals, plastics, and glass from the MSW. The company was formerly known as Alternative Ethanol Technologies, Inc. and changed its name to Cleantech Biofuels, Inc. in 2007. Cleantech Biofuels, Inc. was incorporated in 1996 and is based in Saint Louis, Missouri.