Renewable Energy Group, Inc. produces and sells biofuels and renewable chemicals in the United States. It operates through Biomass-Based Diesel, Services, Renewable Chemicals, and Corporate and Other segments. 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. It produces biomass-based diesel from a range of feedstocks, including inedible corn oil, used cooking oil, soybean oil, canola oil, and inedible animal fat. This segment is also involved in the purchase and resale of biomass-based diesel, petroleum-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. The Renewable Chemicals segment engages in the production of renewable chemicals, advanced biofuels, and other products. The Corporate and Other segment trades petroleum-based heating oil and diesel fuel. Renewable Energy Group, Inc. was founded in 1996 and is headquartered in Ames, Iowa.