Renewable Energy Group, Inc. produces and sells biofuels and renewable chemicals in the United States. It operates through two segments, Biomass-Based Diesel and Services. The Biomass-Based Diesel segment acquires feedstock; manages, constructs, and operates biomass-based diesel production facilities; and markets, sells, and distributes biomass-based diesel and its co-products. This segment produces biomass-based diesel from a range of feedstocks, including inedible corn oil, used cooking oil, and inedible animal fat; and from virgin vegetable oils, such as soybean oil or canola oil. It is also involved in purchase and resale of biomass-based diesel, renewable identification numbers, and raw material feedstocks acquired from third parties; and sale of glycerin, free fatty acids, naphtha, and other co-products of the biomass-based diesel production process. The Services segment provides facility management and operational services to biomass-based diesel production facilities, as well as to other clean-tech companies. This segment also offers construction management services for biomass-based diesel production facilities. Renewable Energy Group, Inc. was founded in 1996 and is headquartered in Ames, Iowa.