Renewable Energy Group, Inc. provides lower carbon transportation fuels in the United States and internationally. The company utilizes a production, distribution, and logistics system to convert natural fats, oils, and greases into advanced biofuels. It operates through Biomass-Based Diesel, Services, and Corporate and Other segments. The company produces biomass-based diesel from various low carbon feedstocks, including distillers corn and used cooking oils, and inedible animal fats, as well as from soybean and canola oils. It is also involved in the purchase and resale of biomass-based diesel, petroleum-based diesel, renewable identification numbers, California low carbon fuel standard credits, and raw material feedstocks acquired from third parties; and sale of biomass-based diesel produced under toll manufacturing arrangements with third party facilities using its feedstocks. In addition, the company provides day-to-day management and operational services to biomass-based diesel production facilities; and construction management and general contracting services for the construction or upgrade of biomass-based diesel production facilities. Further, it sells petroleum-based heating oils and diesel fuels. As of December 31, 2020, the company owned and operated twelve biorefineries, consisting of ten in North America and two in Europe. Renewable Energy Group, Inc. was founded in 1996 and is headquartered in Ames, Iowa.